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Jonas Christoph Wczassek

GFT Ludwigshafen/Elite Fight Academy

W–L
5–5
Won and lost rating-eligible matches in the past 12 months.
Gi
1,362
Rating based on Gi matches in the past 12 months.
No-Gi
-
Rating based on No-Gi matches in the past 12 months.
Current form
5–5
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

11
Events
Date Event Result Format Division
GERMAN NATIONAL OPEN CHAMPIONSHIP 2026 Germany · Gi · U16 · yellow · ≤34 kg 0–2 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
NAGA Germany Grappling Championship Germany · Gi · 8–9 yo · 30–34.9 kg 1–1 W–L: Win / Loss Gi
  • Children Gi (Male) / Intermediate / 30 - 34.9 / 8-9 years
Southside Battle Trials 2025 - Kinder und Jugendliche Germany · Gi · U10 · ≤31 kg 2–0 W–L: Win / Loss Gi
  • U10 - male / female - Gi / U10 - Alter 7 Jahre bis 9 Jahre / -31 kg
FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Germany · Gi · U16 · grey · ≤30 kg 3–2 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
GERMAN NATIONAL KIDS OPEN CHAMPIONSHIP 2025 Germany · Gi · U16 · grey · ≤30 kg 1–3 W–L: Win / Loss Gi
  • Place #6
NAGA Germany Grappling Championship Germany · Gi · 8–9 yo · 25–29.9 kg ; Gi · 8–9 yo · 35–39.9 kg 0–4 W–L: Win / Loss Gi
  • Children Gi (Male) / Intermediate / 25 - 29.9 / 8-9 years
  • Children Gi (Male) / Intermediate / 35 - 39.9 / 8-9 years
2025 AGF Saarbrucken Jiu Jitsu Championships Germany · Gi · 8–9 yo · grey · ≤34 kg 0–2 W–L: Win / Loss Gi
  • Place #4
Bulldog BJJ Inhouse Tournament Gi & No-Gi Germany · Gi · 12 yo · white · 30–34.9 kg 1–2 W–L: Win / Loss Gi
  • Kids Mixed Gi / White / Junior III (12yrs) / 30,0 kg -34,9 kg
FRANKFURT WINTER OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Germany · Gi · U16 · white · ≤30 kg 3–0 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / White / 8-9 years / -30 kg
FRANKFURT FALL OPEN CHAMPIONSHIP 2024 I European Cup Germany · Gi · U16 · grey · ≤27 kg 2–0 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
NAGA Europe Grappling Championship Germany · Gi · 8–9 yo · 25–29.9 kg 0–1 W–L: Win / Loss Gi
  • Children Gi (Male) / Beginner / 25 - 29.9 / 8-9 years

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 +2 Rating 1,362

Rating-period composition

Rating matches
10 0
Record
5–5 Previous month 5–5
Opponents
7 0
Events
4 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 -1 Rating 1,360

Rating-period composition

Rating matches
10 0
Record
5–5 Previous month 5–5
Opponents
7 0
Events
4 0

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

June 2026 2 new matches · 3 left period Change +37 Rating 1,361

Rating-period composition

Rating matches
10 -1
Record
5–5 Previous month 5–6
Opponents
7 -1
Events
4 0

3 older matches left the 12-month period: 0 won and 3 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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.
Loss
June 27, 2026 Nathan Ambach
GERMAN NATIONAL OPEN CHAMPIONSHIP 2026 Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
Method Submission 02:39 0–14
Marginal influence -7
Loss
June 27, 2026 Nathan Ambach
GERMAN NATIONAL OPEN CHAMPIONSHIP 2026 Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
Method Submission 02:11 2–4
Marginal influence -7
May 2026 2 new matches · 6 left period Change +68 Rating 1,324

Rating-period composition

Rating matches
11 -4
Record
5–6 Previous month 4–11
Opponents
8 -3
Events
4 -1

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

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.
Loss
May 23, 2026 Antonio Brigden
NAGA Germany Grappling Championship Children Gi (Male) / Intermediate / 30 - 34.9 / 8-9 years
Method Points 03:00 0–6
Marginal influence -27
Win
May 23, 2026 Hakim Dastageeri
NAGA Germany Grappling Championship Children Gi (Male) / Intermediate / 30 - 34.9 / 8-9 years
Method Points 03:00 12–6
Marginal influence +27
April 2026 No new matches Change +4 Rating 1,256

Rating-period composition

Rating matches
15 0
Record
4–11 Previous month 4–11
Opponents
11 0
Events
5 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 · 3 left period Change -1 Rating 1,252

Rating-period composition

Rating matches
15 -3
Record
4–11 Previous month 5–13
Opponents
11 -1
Events
5 -1

3 older matches left the 12-month period: 1 won and 2 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 · 2 left period Change -54 Rating 1,253

Rating-period composition

Rating matches
18 -2
Record
5–13 Previous month 7–13
Opponents
12 -2
Events
6 -1

2 older matches left the 12-month period: 2 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 No new matches Change -1 Rating 1,307

Rating-period composition

Rating matches
20 0
Record
7–13 Previous month 7–13
Opponents
14 0
Events
7 0

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

December 2025 No new matches Change -2 Rating 1,308

Rating-period composition

Rating matches
20 0
Record
7–13 Previous month 7–13
Opponents
14 0
Events
7 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 · 2 left period Change -48 Rating 1,310

Rating-period composition

Rating matches
20 -2
Record
7–13 Previous month 9–13
Opponents
14 -1
Events
7 -1

2 older matches left the 12-month period: 2 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 6 new matches · 1 left period Change +103 Rating 1,358

Rating-period composition

Rating matches
22 +5
Record
9–13 Previous month 5–12
Opponents
15 +3
Events
8 +1

1 older matches left the 12-month period: 0 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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
Southside Battle Trials 2025 - Kinder und Jugendliche U10 - male / female - Gi / U10 - Alter 7 Jahre bis 9 Jahre / -31 kg
Method Points 03:00 21–0
Marginal influence +29
Win
October 26, 2025 Hakim Dastageeri
Southside Battle Trials 2025 - Kinder und Jugendliche U10 - male / female - Gi / U10 - Alter 7 Jahre bis 9 Jahre / -31 kg
Method Points 03:00 2–0
Marginal influence +24
Loss
October 18, 2025 Nathan Ambach
FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
Method Submission 02:17 0–5
Marginal influence -5
Win
October 18, 2025 Antonio Argentina
FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
Method Decision 03:00 6–2
Marginal influence +20
Win
October 18, 2025 Hicham Aksoy
FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
Method Submission 00:27 0–0
Marginal influence +14
Loss
October 18, 2025 David Lazic
FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
Method Submission 02:43 0–0
Marginal influence -24
September 2025 No new matches Change -1 Rating 1,255

Rating-period composition

Rating matches
17 0
Record
5–12 Previous month 5–12
Opponents
12 0
Events
7 0

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

Relevant matches
6.4
Official ranking percentile
Top 39%
Performance
12.6 pp above expectation

6.4 weighted matches against 7 different opponents across 4 events

Weighted win rate
55.2%
Expected win rate
42.6%
Average opponent rating
1,424
Repeated-opponent share
30.0%
Network connectivity
87.6%

Classification evidence

Why U12?

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

  • U12 2 event votes Selected outcome

Registrations and outcomes

GERMAN NATIONAL OPEN CHAMPIONSHIP 2026
U12 · Counts
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
NAGA Germany Grappling Championship
U12 · Counts
Children Gi (Male) / Intermediate / 30 - 34.9 / 8-9 years
  • Competition age 10
  • Registered age: u10
  • Source category: u10
Southside Battle Trials 2025 - Kinder und Jugendliche
Does not count
U10 - male / female - Gi / U10 - Alter 7 Jahre bis 9 Jahre / -31 kg
  • Competition age 9
  • Registered age: u8
  • Source category: u8
FRANKFURT FALL OPEN 2025 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10

Classification evidence

Why ≤ 31 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

  • ≤ 31 kg 1 competition event Selected outcome
  • ≤ 34 kg 1 competition event
  • ≤ 35 kg 1 competition event

Registrations and outcomes

GERMAN NATIONAL OPEN CHAMPIONSHIP 2026
≤ 34 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
  • Registered weight class: -34 kg
  • Source competition limit: -34 kg

2 matches in the rating period

NAGA Germany Grappling Championship
≤ 35 kg · Counts as a competition event
Children Gi (Male) / Intermediate / 30 - 34.9 / 8-9 years
  • Registered weight class: 30 - 34.9
  • Source competition limit: 30 - 34.9

2 matches in the rating period

Southside Battle Trials 2025 - Kinder und Jugendliche
≤ 31 kg · Counts as a competition event
U10 - male / female - Gi / U10 - Alter 7 Jahre bis 9 Jahre / -31 kg
  • Registered weight class: -31 kg
  • Source competition limit: -31 kg

2 matches in the rating period

FRANKFURT FALL OPEN 2025 I EUROPEAN CUP
≤ 30 kg · Does not count
Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
  • Registered weight class: -30 kg
  • Source competition limit: -30 kg

4 matches in the rating period · outside the three most recent unambiguous events

Classification evidence

Why Grey?

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

  • grey 4 matches in the rating period Selected outcome
  • yellow 2 matches in the rating period

Registrations and outcomes

GERMAN NATIONAL OPEN CHAMPIONSHIP 2026
yellow · Counts as a match
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
  • Source belt category: yellow

2 matches in the rating period

FRANKFURT FALL OPEN 2025 I EUROPEAN CUP
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg
  • Source belt category: grey

4 matches in the rating period