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Colin Bohlert

Nexus Fighter Academy

W–L
2–5
Won and lost rating-eligible matches in the past 12 months.
Gi
1,160
Rating based on Gi matches in the past 12 months.
No-Gi
1,224
Rating based on No-Gi matches in the past 12 months.
Current form
2–5
Results from the ten most recent rating-eligible matches.
Opponents
6
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
2
Silver
7
Bronze
7
Total medals
16
Events with results
13

Full career record

Wins
14
Losses
40
Matches
54
Win rate
25.9%

Ways of winning

Submission
7
Points
4
Decision
0
Disqualification
0

Personal records

Longest winning streak
3
Longest submission streak
1
Longest gold streak
1

Recent recorded placements

  4. Fennec BJJ Kids Cup Gi & NoGi

    DE Event record 2–2

    • Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
    • Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
6
Distinct events
4

Ways of winning

  • Submission 1 50%
  • Points 1 50%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1160
Record
1–5
Win rate
17%
Submission share
100%

No-Gi

Rating
1224
Record
1–0
Win rate
100%
Submission share
0%

Win quality

Grouped by pre-match win probability. This provides context and does not award an extra rating bonus.

As underdog 0–0 Less than 35% expected win probability before the match.
Even match 0–0 Between 35% and 65% expected win probability before the match.
As favourite 0–0 More than 65% expected win probability before the match.

Development

Rating and development

The same published rating, supported by trend, opponent strength and evidence quality.

Current rating
1,220
Change over 90 days
-6
Highest rating in 12 months
1,279
Performance versus expectation
-9.6 pp
Schedule strength
Top 50%
Average opponent rating
1,325
Weighted win rate
33%
Expected win rate
43%
Repeat-opponent share
14%
Effective evidence
5.9
Confidence
76/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 12–21 12–21 across 33 rematches against 15 repeat opponents.
Most-faced opponent Sari Allam 1–3 · 4 matches

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #207 Muhammad Sakaev · 2026 AGF Hamburg Summer Open Sub 01:01 0–2

Full career

  1. #207 Muhammad Sakaev · 2026 AGF Hamburg Summer Open Sub 01:01 0–2
  2. #442 Fynn Quilitz · Doso Kids Cup - The Combatch Games Sub 02:29 3–6
  3. #1104 Sari Allam · The Combatch Games 3: Kids & Teens Sub 01:04 0–0
  4. #1108 Lars Umert · FRANKFURT WINTER OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Pts 12–0 Earlier · Sub 02:11 4–0 February 22, 2025 · FRANKFURT WINTER OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP

Rivals

Opponent Head-to-head record Matches
Sari Allam 1–3 4
Andre Zaytsev 0–2 2

Around this athlete

Athlete Rank Rating
Rishaan Harhangi #1233 1,221
Colin Bohlert #1234 1,220
Sirine El Abdouni #1235 1,220

Recent tournaments

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 2 new matches Change -27 Rating 1,220

Rating-period composition

Rating matches
7 +2
Record
2–5 Previous month 2–3
Opponents
6 +1
Events
4 +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.
Loss
August 15, 2026 David Chkhaidze
Grappling Industries HAMBURG Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -105 lbs
Method Submission 01:00 0–3
Marginal influence -15
Loss
August 15, 2026 David Chkhaidze
Grappling Industries HAMBURG Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -105 lbs
Method Submission 03:17 0–7
Marginal influence -15
July 2026 1 new match Change +66 Rating 1,247

Rating-period composition

Rating matches
5 +1
Record
2–3 Previous month 1–3
Opponents
5 +1
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
July 4, 2026 Muhammad Sakaev
2026 AGF Hamburg Summer Open Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
Method Submission 01:01 0–2
Marginal influence +52
June 2026 No new matches Change -1 Rating 1,181

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
4 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.

May 2026 No new matches Change 0 Rating 1,182

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
4 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.

April 2026 No new matches Change 0 Rating 1,182

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
4 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.

March 2026 No new matches Change 0 Rating 1,182

Rating-period composition

Rating matches
4 0
Record
1–3 Previous month 1–3
Opponents
4 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.

February 2026 No new matches · 11 left period Change -44 Rating 1,182

Rating-period composition

Rating matches
4 -11
Record
1–3 Previous month 4–11
Opponents
4 -8
Events
2 -2

11 older matches left the 12-month period: 3 won and 8 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

January 2026 2 new matches Change -38 Rating 1,226

Rating-period composition

Rating matches
15 +2
Record
4–11 Previous month 4–9
Opponents
12 +2
Events
4 +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.
Loss
January 31, 2026 Artem Pashetnykh
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Gi / Grey / Teen 1 (12/13yrs) / - 42 kg
Method Points 04:00 6–8
Marginal influence -30
Loss
January 31, 2026 Eldar Sumoniuk
The Combatch Games 5: Kids & Teens - Berlin Teen Boys Gi / Grey / Teen 1 (12/13yrs) / - 42 kg
Method Submission 00:20 0–0
Marginal influence -35
December 2025 No new matches Change +5 Rating 1,264

Rating-period composition

Rating matches
13 0
Record
4–9 Previous month 4–9
Opponents
10 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.

November 2025 2 new matches · 8 left period Change -13 Rating 1,259

Rating-period composition

Rating matches
13 -6
Record
4–9 Previous month 6–13
Opponents
10 -2
Events
3 -1

8 older matches left the 12-month period: 3 won and 5 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
November 22, 2025 Ismail Abdurrahman
Fennec BJJ Kids Cup Gi & NoGi Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
Method Submission 00:52 0–7
Marginal influence -14
Win
November 22, 2025 Milian Plötz
Fennec BJJ Kids Cup Gi & NoGi Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
Method Points 04:00 8–4
Marginal influence +25
October 2025 No new matches Change -8 Rating 1,272

Rating-period composition

Rating matches
19 0
Record
6–13 Previous month 6–13
Opponents
12 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.

September 2025 No new matches Change +1 Rating 1,280

Rating-period composition

Rating matches
19 0
Record
6–13 Previous month 6–13
Opponents
12 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.

Relevant matches
5.9
Official ranking percentile
Top 83%
Performance
9.6 pp below expectation

5.9 weighted matches against 6 different opponents across 4 events

Weighted win rate
33.2%
Expected win rate
42.8%
Average opponent rating
1,325
Repeated-opponent share
14.3%
Network connectivity
87.6%

Classification evidence

Why U16?

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

  • U16 4 event votes Selected outcome

Registrations and outcomes

Grappling Industries HAMBURG
U16 · Counts
Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -105 lbs
  • Competition age 14
  • Registered age: u16
  • Source category: u16
2026 AGF Hamburg Summer Open
U16 · Counts
Gi Kids / Boys / Juniors (12 - 13 yrs) / Yellow / Light II (Up to 47.60 kg)
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Competition T-shirt / Youth Large
Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
  • Competition age 14
  • Registered age: u16
  • Source category: u16
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U16 · Counts
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Competition age 14
  • Registered age: u14
  • Source category: u14
The Combatch Games 5: Kids & Teens - Berlin
U16 · Counts
Teen Boys Gi / Grey / Teen 1 (12/13yrs) / - 42 kg
  • Competition age 14
  • Registered age: u14
  • Source category: u14
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Fennec BJJ Kids Cup Gi & NoGi
Does not count
Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 42 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

  • ≤ 42 kg 1 competition event Selected outcome
  • ≤ 48 kg 2 competition events

Registrations and outcomes

Grappling Industries HAMBURG
≤ 48 kg · Counts as a competition event
Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -105 lbs
  • Registered weight class: -105 lbs
  • Source competition limit: -105 lbs

2 matches in the rating period

2026 AGF Hamburg Summer Open
Does not count
Gi Kids / Boys / Juniors (12 - 13 yrs) / Yellow / Light II (Up to 47.60 kg)
  • Registered weight class: Light II (Up to 47.60 kg)
  • Source competition limit: Light II (Up to 47.60 kg)

No matches in the rating period · no valid weight evidence

2026 AGF Hamburg Summer Open
Does not count
Competition T-shirt / Youth Large

No matches in the rating period · no valid weight evidence

2026 AGF Hamburg Summer Open
≤ 48 kg · Counts as a competition event
Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
  • Registered weight class: Light II (Up to 47.60 kg)
  • Source competition limit: Light II (Up to 47.60 kg)

1 match in the rating period

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

No matches in the rating period · no valid weight evidence

The Combatch Games 5: Kids & Teens - Berlin
≤ 42 kg · Counts as a competition event
Teen Boys Gi / Grey / Teen 1 (12/13yrs) / - 42 kg
  • Registered weight class: - 42 kg
  • Source competition limit: - 42 kg

2 matches in the rating period

HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

No matches in the rating period · no valid weight evidence

Fennec BJJ Kids Cup Gi & NoGi
≤ 45 kg · Does not count
Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

1 match in the rating period · outside the three most recent unambiguous events

Fennec BJJ Kids Cup Gi & NoGi
≤ 45 kg · Does not count
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

1 match 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
  • orange 2 matches in the rating period

Registrations and outcomes

Grappling Industries HAMBURG
orange · Counts as a match
Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -105 lbs
  • Source belt category: orange

2 matches in the rating period

The Combatch Games 5: Kids & Teens - Berlin
grey · Counts as a match
Teen Boys Gi / Grey / Teen 1 (12/13yrs) / - 42 kg
  • Source belt category: grey

2 matches in the rating period

Fennec BJJ Kids Cup Gi & NoGi
grey · Counts as a match
Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Source belt category: grey

1 match in the rating period

Fennec BJJ Kids Cup Gi & NoGi
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -45 kg
  • Source belt category: grey

1 match in the rating period