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Vilijam Sajn

Hilti BJJ Berlin

W–L
5–0
Won and lost rating-eligible matches in the past 12 months.
Gi
1,366
Rating based on Gi matches in the past 12 months.
No-Gi
1,294
Rating based on No-Gi matches in the past 12 months.
Current form
5–0
Results from the ten most recent rating-eligible matches.
Opponents
3
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

66
Indexed competition matches
Date Opponent Result Event Division
2023-04-02 Luis Leuchert
Win
Grappling Industries BERLIN No-Gi · No Gi Kids / Beginner (White) / 12 - 13 years (Male) / -105 lbs
2023-04-02 Titus Nimz
Win
Grappling Industries BERLIN No-Gi · No Gi Kids / Beginner (White) / 12 - 13 years (Male) / -105 lbs
2023-04-02 Edward Grunwald
Win
Grappling Industries BERLIN No-Gi · No Gi Kids / Beginner (White) / 12 - 13 years (Male) / -105 lbs
2023-04-02 Esad Cakirci
Win
Grappling Industries BERLIN No-Gi · No Gi Kids / Beginner (White) / 12 - 13 years (Male) / -105 lbs
2023-04-02 Titus Nimz
Win
Grappling Industries BERLIN Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs
2023-04-02 Esad Cakirci
Win
Grappling Industries BERLIN Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs
2023-04-02 Edward Grunwald
Win
Grappling Industries BERLIN Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs
2023-04-02 Ricardo Bonke
Win
Grappling Industries BERLIN Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs
2023-04-02 Lenny-Joel Hein
Win
Grappling Industries BERLIN Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs
2023-02-04 Juan Antonio Memarzadeh
Win
Doso Kids Cup Gi · Teen Boys / Grey / Teen 1 (12/13yrs) / - 55 kg
2023-02-04 Lincoln Engfield
Win
Doso Kids Cup Gi · Teen Boys / Grey / Teen 1 (12/13yrs) / - 55 kg
2023-02-04 Liam Michalski
Win
Doso Kids Cup Gi · Teen Boys / Grey / Teen 1 (12/13yrs) / - 55 kg
2023-02-04 Erik Skoglund
Win
Doso Kids Cup Gi · Teen Boys / Grey / Teen 1 (12/13yrs) / - 55 kg
2022-06-11 Cuno Schroeter
Loss
Fennec BJJ Kids Cup Vol. 2 Gi · Boys Gi / Junior II (11/12 yrs) / White/Grey (bzw. bis 1 Jahr Training) / -45.00 kg
2022-06-11 Justus Fuhs
Loss
Fennec BJJ Kids Cup Vol. 2 Gi · Boys Gi / Junior II (11/12 yrs) / White/Grey (bzw. bis 1 Jahr Training) / -45.00 kg
2022-06-11 Max Lochterhand
Loss
Fennec BJJ Kids Cup Vol. 2 Gi · Boys Gi / Junior II (11/12 yrs) / White/Grey (bzw. bis 1 Jahr Training) / -45.00 kg
Win

against Luis Leuchert

Grappling Industries BERLIN

No-Gi · No Gi Kids / Beginner (White) / 12 - 13 years (Male) / -105 lbs

W/O

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Round
3
Score
0–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Titus Nimz

Grappling Industries BERLIN

No-Gi · No Gi Kids / Beginner (White) / 12 - 13 years (Male) / -105 lbs

Pts (9–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
03:00
Round
3
Score
9–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Edward Grunwald

Grappling Industries BERLIN

No-Gi · No Gi Kids / Beginner (White) / 12 - 13 years (Male) / -105 lbs

Sub (01:01 · 12–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
01:01
Round
2
Score
12–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Esad Cakirci

Grappling Industries BERLIN

No-Gi · No Gi Kids / Beginner (White) / 12 - 13 years (Male) / -105 lbs

Sub (01:25 · 2–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
01:25
Round
1
Score
2–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Titus Nimz

Grappling Industries BERLIN

Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs

Pts (2–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
03:00
Round
1
Score
2–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Esad Cakirci

Grappling Industries BERLIN

Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs

Sub (01:50 · 7–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
01:50
Round
4
Score
7–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Edward Grunwald

Grappling Industries BERLIN

Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs

Sub (01:06 · 4–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
01:06
Round
3
Score
4–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Ricardo Bonke

Grappling Industries BERLIN

Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs

Sub (01:41 · 2–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
01:41
Round
2
Score
2–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Lenny-Joel Hein

Grappling Industries BERLIN

Gi · Gi Kids / White / 12 - 13 years (Male) / -105 lbs

Sub (02:45 · 14–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
02:45
Round
1
Score
14–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Juan Antonio Memarzadeh

Doso Kids Cup

Gi · Teen Boys / Grey / Teen 1 (12/13yrs) / - 55 kg

Sub (01:07 · 0–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
01:07
Round
4
Score
0–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Lincoln Engfield

Doso Kids Cup

Gi · Teen Boys / Grey / Teen 1 (12/13yrs) / - 55 kg

Sub (00:40 · 6–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
00:40
Round
3
Score
6–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Liam Michalski

Doso Kids Cup

Gi · Teen Boys / Grey / Teen 1 (12/13yrs) / - 55 kg

Sub (01:48 · 9–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
01:48
Round
2
Score
9–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Win

against Erik Skoglund

Doso Kids Cup

Gi · Teen Boys / Grey / Teen 1 (12/13yrs) / - 55 kg

Pts (20–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
04:00
Round
1
Score
20–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Loss

against Cuno Schroeter

Fennec BJJ Kids Cup Vol. 2

Gi · Boys Gi / Junior II (11/12 yrs) / White/Grey (bzw. bis 1 Jahr Training) / -45.00 kg

Sub (01:59 · 0–0)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
01:59
Round
3
Score
0–0
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Loss

against Justus Fuhs

Fennec BJJ Kids Cup Vol. 2

Gi · Boys Gi / Junior II (11/12 yrs) / White/Grey (bzw. bis 1 Jahr Training) / -45.00 kg

Sub (02:02 · 0–7)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
02:02
Round
2
Score
0–7
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Loss

against Max Lochterhand

Fennec BJJ Kids Cup Vol. 2

Gi · Boys Gi / Junior II (11/12 yrs) / White/Grey (bzw. bis 1 Jahr Training) / -45.00 kg

Pts (2–3)

Match details
Current estimated model contribution
Rating influence
Current rating influence: This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete.
Duration
03:00
Round
1
Score
2–3
Academy during event
Hilti BJJ Berlin

Outside the current rating period

Calculation details

Rating breakdown for the past 12 months

See the published month-end rating and the rating-eligible matches added in each month. Open a month for details.

August 2026 No new matches Change 0 Rating 1,418

Rating-period composition

Rating matches
5 0
Record
5–0 Previous month 5–0
Opponents
3 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

July 2026 No new matches Change 0 Rating 1,418

Rating-period composition

Rating matches
5 0
Record
5–0 Previous month 5–0
Opponents
3 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

June 2026 No new matches Change -1 Rating 1,418

Rating-period composition

Rating matches
5 0
Record
5–0 Previous month 5–0
Opponents
3 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

May 2026 No new matches Change -1 Rating 1,419

Rating-period composition

Rating matches
5 0
Record
5–0 Previous month 5–0
Opponents
3 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

April 2026 No new matches Change 0 Rating 1,420

Rating-period composition

Rating matches
5 0
Record
5–0 Previous month 5–0
Opponents
3 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

March 2026 No new matches · 6 left period Change -71 Rating 1,420

Rating-period composition

Rating matches
5 -6
Record
5–0 Previous month 11–0
Opponents
3 -3
Events
1 -1

6 older matches left the 12-month period: 6 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

February 2026 No new matches · 6 left period Change -59 Rating 1,491

Rating-period composition

Rating matches
11 -6
Record
11–0 Previous month 17–0
Opponents
6 -5
Events
2 -1

6 older matches left the 12-month period: 6 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

January 2026 5 new matches Change +40 Rating 1,550

Rating-period composition

Rating matches
17 +5
Record
17–0 Previous month 12–0
Opponents
11 +2
Events
3 +1

New rating matches

This is a current what-if estimate: roughly how much the current rating changes when this match is omitted. These values cannot be added and therefore do not together explain the monthly change.
Win
January 31, 2026 Sandro Gagua
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Gi / Orange & Green / Teen 2 (14/15yrs) / - 70 kg
Method Submission 01:45 0–0
Marginal influence +25
Win
January 31, 2026 Lennox Wollny
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Gi / Orange & Green / Teen 2 (14/15yrs) / - 70 kg
Method Submission 01:05 6–0
Marginal influence +16
Win
January 31, 2026 Lupus Stausberg
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Gi / Orange & Green / Teen 2 (14/15yrs) / - 70 kg
Method Submission 00:52 0–0
Marginal influence +29
Win
January 31, 2026 Sandro Gagua
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Nogi / Experten / Teen 2 (14/15yrs) / - 70 kg
Method Submission 01:32 0–0
Marginal influence +4
Win
January 31, 2026 Lennox Wollny
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Nogi / Experten / Teen 2 (14/15yrs) / - 70 kg
Method Submission 00:49 2–0
Marginal influence 0
December 2025 No new matches Change +1 Rating 1,510

Rating-period composition

Rating matches
12 0
Record
12–0 Previous month 12–0
Opponents
9 0
Events
2 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

November 2025 No new matches · 7 left period Change -49 Rating 1,509

Rating-period composition

Rating matches
12 -7
Record
12–0 Previous month 19–0
Opponents
9 -3
Events
2 -1

7 older matches left the 12-month period: 7 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

October 2025 No new matches Change +5 Rating 1,558

Rating-period composition

Rating matches
19 0
Record
19–0 Previous month 19–0
Opponents
12 0
Events
3 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

September 2025 No new matches Change +2 Rating 1,553

Rating-period composition

Rating matches
19 0
Record
19–0 Previous month 19–0
Opponents
12 0
Events
3 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

Relevant matches
4
Official ranking percentile
-
Performance
-

4 weighted matches against 3 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,319
Repeated-opponent share
40.0%
Network connectivity
80.9%

Classification evidence

Why U18?

Within the published period from 2025-09-01 through 2026-08-31, only competition ages recorded at events in the calculation year determine this outcome, with at most one vote per event. Without such an age, the most recent unambiguous earlier competition age is projected to the calculation year; bracket evidence is the final fallback. The newest evidence breaks a tie.

Evidence outcome

  • U18 1 event vote Selected outcome

Registrations and outcomes

The Combatch Games 5: Kids & Teens - Berlin
U18 · Counts
Teen Boys Nogi / Experten / Teen 2 (14/15yrs) / - 70 kg
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Teen Boys Gi / Orange & Green / Teen 2 (14/15yrs) / - 70 kg
  • Competition age 16
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 70 kg?

This outcome uses at most one unambiguous upper weight limit per completed ranking event from 2025-09-01 through 2026-08-31. Only the three most recent eligible events are considered, and the lightest verified upper limit is selected. A higher division is not treated as measured body weight.

Evidence outcome

  • ≤ 70 kg 1 competition event Selected outcome

Registrations and outcomes

The Combatch Games 5: Kids & Teens - Berlin
≤ 70 kg · Counts as a competition event
Teen Boys Nogi / Experten / Teen 2 (14/15yrs) / - 70 kg
  • Registered weight class: - 70 kg
  • Source competition limit: - 70 kg

2 matches in the rating period

The Combatch Games 5: Kids & Teens - Berlin
≤ 70 kg · Counts as a competition event
Teen Boys Gi / Orange & Green / Teen 2 (14/15yrs) / - 70 kg
  • Registered weight class: - 70 kg
  • Source competition limit: - 70 kg

3 matches in the rating period

Classification evidence

Why Green?

This outcome uses the belt category of every rating-eligible match from 2025-09-01 through 2026-08-31. The most-fought category is selected; the newest evidence breaks a tie.

Evidence outcome

  • green 3 matches in the rating period Selected outcome

Registrations and outcomes

The Combatch Games 5: Kids & Teens - Berlin
green · Counts as a match
Teen Boys Gi / Orange & Green / Teen 2 (14/15yrs) / - 70 kg
  • Source belt category: green

3 matches in the rating period