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Mustafa Akkas

TEAM MMA

W–L
3–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,347
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
3–1
Results from the ten most recent rating-eligible matches.
Opponents
4
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
1
Bronze
1
Total medals
3
Events with results
3

Full career record

Wins
5
Losses
3
Matches
8
Win rate
62.5%

Ways of winning

Submission
4
Points
1
Decision
0
Disqualification
0

Personal records

Longest winning streak
3
Longest submission streak
2
Longest gold streak
1

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
3
Unique opponents
4
Distinct events
2

Ways of winning

  • Submission 2 67%
  • Points 1 33%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1347
Record
3–1
Win rate
75%
Submission share
67%

No-Gi

Rating
-
Record
-
Win rate
-
Submission share
-

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
1,347
Change over 90 days
+112
Highest rating in 12 months
1,377
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,427
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
0%
Effective evidence
3.3
Confidence
55/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #250 Youssef Attahoumi · BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Pts 6–0
  2. #452 FRANCESCO NEFZI · BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Sub 01:25 0–0
  3. #945 Hamza Benhaddou · BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Sub 00:31 0–0

Full career

  1. #250 Youssef Attahoumi · BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Pts 6–0
  2. #452 FRANCESCO NEFZI · BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Sub 01:25 0–0
  3. #945 Hamza Benhaddou · BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Sub 00:31 0–0

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 No new matches Change +1 Rating 1,347

Rating-period composition

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

July 2026 No new matches Change 0 Rating 1,346

Rating-period composition

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

June 2026 No new matches Change -1 Rating 1,346

Rating-period composition

Rating matches
4 0
Record
3–1 Previous month 3–1
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 +12 Rating 1,347

Rating-period composition

Rating matches
4 0
Record
3–1 Previous month 3–1
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 +1 Rating 1,335

Rating-period composition

Rating matches
4 0
Record
3–1 Previous month 3–1
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 +4 Rating 1,334

Rating-period composition

Rating matches
4 0
Record
3–1 Previous month 3–1
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 · 3 left period Change -48 Rating 1,330

Rating-period composition

Rating matches
4 -3
Record
3–1 Previous month 5–2
Opponents
4 -3
Events
2 -1

3 older matches left the 12-month period: 2 won and 1 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 1,378

Rating-period composition

Rating matches
7 0
Record
5–2 Previous month 5–2
Opponents
7 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.

December 2025 No new matches Change 0 Rating 1,377

Rating-period composition

Rating matches
7 0
Record
5–2 Previous month 5–2
Opponents
7 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 3 new matches Change +144 Rating 1,377

Rating-period composition

Rating matches
7 +3
Record
5–2 Previous month 2–2
Opponents
7 +3
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
November 22, 2025 FRANCESCO NEFZI
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Boys Youth Gi / White & Grey / 13-15 / -58,5 kg (Light feather)
Method Submission 01:25 0–0
Marginal influence +35
Win
November 22, 2025 Youssef Attahoumi
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Boys Youth Gi / White & Grey / 13-15 / -58,5 kg (Light feather)
Method Points 04:00 6–0
Marginal influence +46
Win
November 22, 2025 Hamza Benhaddou
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS Boys Youth Gi / White & Grey / 13-15 / -58,5 kg (Light feather)
Method Submission 00:31 0–0
Marginal influence +26
October 2025 1 new match Change -32 Rating 1,233

Rating-period composition

Rating matches
4 +1
Record
2–2 Previous month 2–1
Opponents
4 +1
Events
2 +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
October 18, 2025 Muhammed Ali Yilmaz
INTERCLUB GRAPPLING VLAANDEREN Jiu Jitsu - Gi - 18/10 Boys Youth Gi / White & Grey / 13-15 / -58,5 kg (Light feather)
Method Points 04:00 0–2
Marginal influence -33
September 2025 No new matches Change 0 Rating 1,265

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
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.

Relevant matches
3.3
Official ranking percentile
-
Performance
-

3.3 weighted matches against 4 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,427
Repeated-opponent share
0.0%
Network connectivity
87.6%

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 10 event votes Selected outcome

Registrations and outcomes

2026 AGF Belgium Championships
U18 · Counts
Competition T-shirt / Youth Medium
Gi Juveniles / Adults / Male / Juvenile / White / Light Feather (Up to 65.80 kg)
  • Competition age 16
  • Registered age: u18
  • Source category: u18
Grappling Industries AMSTERDAM
U18 · Counts
Gi Kids / 16 - 17 years (Male) / White / -135 lbs
  • Competition age 16
  • Registered age: u18
  • Source category: u18
LILLE | OSS BJJ TOURNAMENT ROUND ROBIN | POINTS RULES
U18 · Counts
KIDS GI / Garçon / Blanche (White) / Juvenile garçon (16-17 ans) / -64 kg
  • Competition age 16
  • Registered age: u18
  • Source category: u18
NAGA Brussels Grappling Championship
U18 · Counts
Teens Gi (Male) / Expert / 55 - 59.9 / 16-17 years
  • Competition age 16
  • Registered age: u18
  • Source category: u18
VERSUS Championship 34 - Gi & NoGi
Does not count
Male Gi / White (Novice) / -65
  • Competition age 16
NO GI - BELGIAN CHAMPIONSHIP KIDS YOUTH & ADULTS 2026
Does not count
Male NoGi / White / -64 kg (Light feather) / Adult
  • Competition age 16
Grappling Industries BRUSSELS
U18 · Counts
No Gi Kids / 16 - 17 years (Male) / Beginner (White) / -135 lbs
  • Competition age 16
  • Registered age: u18
  • Source category: u18
Gi Kids / 16 - 17 years (Male) / White / -135 lbs
  • Competition age 16
  • Registered age: u18
  • Source category: u18
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
U18 · Counts
Teens No-Gi (Male) / Novice / 55 - 59.9 / 14-15 years
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Teens Gi (Male) / Novice / 55 - 59.9 / 14-15 years
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Grappling Industries AMSTERDAM
U18 · Counts
Gi Kids / 14 - 15 years (Male) / White / -135 lbs
  • Competition age 16
  • Registered age: u16
  • Source category: u16
2026 AGF Dusseldorf Championships
U18 · Counts
No Gi Kids / Boys / Teen (14 - 15 yrs) / White / Middle II (Up to 61.20 kg)
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Gi Kids / Boys / Teen (14 - 15 yrs) / White / Middle II (Up to 61.20 kg)
  • Competition age 16
  • Registered age: u16
  • Source category: u16
INTERCLUB JIU JITSU 14/02/2026
U18 · Counts
Boys Youth Gi / White & Grey / 13-15 / -64,0 kg (Feather)
  • Competition age 16
2026 AGF Brugge Championships
U18 · Counts
Competition T-shirt / Youth Medium
No Gi Kids / Boys / Teen (14 - 15 yrs) / White / Middle II (Up to 61.20 kg)
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Gi Kids / Boys / Teen (14 - 15 yrs) / White / Middle II (Up to 61.20 kg)
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Grappling Industries BRUSSELS
Does not count
No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -125 lbs
  • Competition age 15
  • Registered age: u16
  • Source category: u16
Gi Kids / White / 14 - 15 years (Male) / -135 lbs
  • Competition age 15
  • Registered age: u16
  • Source category: u16
BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS
Does not count
Boys Youth Gi / White & Grey / 13-15 / -58,5 kg (Light feather)
  • Competition age 15
2025 AGF Amsterdam Open
Does not count
Gi Kids / Boys / Teen (14 - 15 yrs) / White / Middle II (Up to 61.20 kg)
  • Competition age 15
  • Registered age: u16
  • Source category: u16
Competition T-shirt / Adult Medium
No Gi Kids / Boys / Teen (14 - 15 yrs) / White / Middle II (Up to 61.20 kg)
  • Competition age 15
  • Registered age: u16
  • Source category: u16
INTERCLUB GRAPPLING VLAANDEREN Jiu Jitsu - Gi - 18/10
Does not count
Boys Youth Gi / White & Grey / 13-15 / -58,5 kg (Light feather)
  • Competition age 15
Gelders Open BJJ
Does not count
Kids / 13 - 15 years boys / White / -60 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16

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

Registrations and outcomes

BELGIAN CHAMPIONSHIP GI KIDS YOUTH & ADULTS / CHAMPIONNAT DE BELGIQUE GI KIDS YOUTH & ADULTS
grey · Counts as a match
Boys Youth Gi / White & Grey / 13-15 / -58,5 kg (Light feather)
  • Source belt category: grey

3 matches in the rating period

INTERCLUB GRAPPLING VLAANDEREN Jiu Jitsu - Gi - 18/10
grey · Counts as a match
Boys Youth Gi / White & Grey / 13-15 / -58,5 kg (Light feather)
  • Source belt category: grey

1 match in the rating period