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Oumar José

Haven BJJ

W–L
2–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,228
Rating based on Gi matches in the past 12 months.
No-Gi
1,194
Rating based on No-Gi matches in the past 12 months.
Current form
2–2
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

10
Indexed competition matches
Date Opponent Result Event Division
2026-05-23 Ilia Mohaghegh
Win
GrappleCity: Rotterdam Summer Open No-Gi · Teens NoGi / White / 14-15 years / -75kg / Boy
2026-05-23 Ilia Mohaghegh
Win
GrappleCity: Rotterdam Summer Open Gi · Teens Gi / White / 14-15 years / -75kg / Boy
2025-11-09 Erwin De Jong
Loss
GrappleCity: Rotterdam Winter Open No-Gi · Teens NoGi / White / 14-15 years / -75kg / Boy
2025-11-09 Samuel Harmsen
Loss
GrappleCity: Rotterdam Winter Open No-Gi · Teens NoGi / White / 14-15 years / -75kg / Boy
2025-08-02 Nykyta Tymofeiev
Win
Grappling Industries AMSTERDAM No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -170 lbs
2025-08-02 Jona Yeboah
Loss
Grappling Industries AMSTERDAM No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -170 lbs
2025-08-02 Jona Yeboah
Loss
Grappling Industries AMSTERDAM Gi · Gi Kids / White / 14 - 15 years (Male) / -170 lbs
2025-08-02 Nykyta Tymofeiev
Loss
Grappling Industries AMSTERDAM Gi · Gi Kids / White / 14 - 15 years (Male) / -170 lbs
2025-05-25 Muhammed Yildizli
Loss
'The Future League 6' by VERSUS Gi · 14 - 15 years / Boys / White / +70 kg
2025-05-25 Jona Yeboah
Loss
'The Future League 6' by VERSUS Gi · 14 - 15 years / Boys / White / +70 kg

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 · 2 left period Change -36 Rating 1,273

Rating-period composition

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

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

July 2026 No new matches Change +1 Rating 1,309

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
5 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.

June 2026 No new matches Change -3 Rating 1,308

Rating-period composition

Rating matches
6 0
Record
3–3 Previous month 3–3
Opponents
5 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.

May 2026 2 new matches · 2 left period Change +67 Rating 1,311

Rating-period composition

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

2 older matches left the 12-month period: 0 won and 2 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
May 23, 2026 Ilia Mohaghegh
GrappleCity: Rotterdam Summer Open Teens NoGi / White / 14-15 years / -75kg / Boy
Method Submission 01:34 0–0
Marginal influence +26
Win
May 23, 2026 Ilia Mohaghegh
GrappleCity: Rotterdam Summer Open Teens Gi / White / 14-15 years / -75kg / Boy
Method Submission 04:00 6–2
Marginal influence +22
April 2026 No new matches Change 0 Rating 1,244

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
5 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.

March 2026 No new matches Change +2 Rating 1,244

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
5 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.

February 2026 No new matches Change 0 Rating 1,242

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
5 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.

January 2026 No new matches Change +1 Rating 1,242

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
5 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 1,241

Rating-period composition

Rating matches
6 0
Record
1–5 Previous month 1–5
Opponents
5 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 Change -11 Rating 1,241

Rating-period composition

Rating matches
6 +2
Record
1–5 Previous month 1–3
Opponents
5 +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.
Loss
November 9, 2025 Erwin De Jong
GrappleCity: Rotterdam Winter Open Teens NoGi / White / 14-15 years / -75kg / Boy
Method Submission 03:14 2–2
Marginal influence -36
Loss
November 9, 2025 Samuel Harmsen
GrappleCity: Rotterdam Winter Open Teens NoGi / White / 14-15 years / -75kg / Boy
Method Points 04:00 0–5
Marginal influence -26
October 2025 No new matches Change 0 Rating 1,252

Rating-period composition

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

September 2025 No new matches Change +2 Rating 1,252

Rating-period composition

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

Relevant matches
3.7
Official ranking percentile
-
Performance
-

3.7 weighted matches against 3 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,220
Repeated-opponent share
25.0%
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

GrappleCity: Rotterdam Summer Open
U18 · Counts
Teens NoGi / White / 14-15 years / -75kg / Boy
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Teens Gi / White / 14-15 years / -75kg / Boy
  • Competition age 16
  • Registered age: u16
  • Source category: u16
GrappleCity: Rotterdam Winter Open
Does not count
Teens NoGi / White / 14-15 years / -75kg / Boy
  • Competition age 15
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 75 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

  • ≤ 75 kg 2 competition events Selected outcome

Registrations and outcomes

GrappleCity: Rotterdam Summer Open
≤ 75 kg · Counts as a competition event
Teens NoGi / White / 14-15 years / -75kg / Boy
  • Registered weight class: -75kg
  • Source competition limit: -75kg

1 match in the rating period

GrappleCity: Rotterdam Summer Open
≤ 75 kg · Counts as a competition event
Teens Gi / White / 14-15 years / -75kg / Boy
  • Registered weight class: -75kg
  • Source competition limit: -75kg

1 match in the rating period

GrappleCity: Rotterdam Winter Open
≤ 75 kg · Counts as a competition event
Teens NoGi / White / 14-15 years / -75kg / Boy
  • Registered weight class: -75kg
  • Source competition limit: -75kg

2 matches in the rating period

Classification evidence

Why White?

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

  • white 4 matches in the rating period Selected outcome

Registrations and outcomes

GrappleCity: Rotterdam Summer Open
white · Counts as a match
Teens NoGi / White / 14-15 years / -75kg / Boy
  • Source belt category: white

1 match in the rating period

GrappleCity: Rotterdam Summer Open
white · Counts as a match
Teens Gi / White / 14-15 years / -75kg / Boy
  • Source belt category: white

1 match in the rating period

GrappleCity: Rotterdam Winter Open
white · Counts as a match
Teens NoGi / White / 14-15 years / -75kg / Boy
  • Source belt category: white

2 matches in the rating period