TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
FR

Ethan COHEN

Massilia brazilian jiu-jitsu

W–L
1–1
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,216
Rating based on No-Gi matches in the past 12 months.
Current form
1–1
Results from the ten most recent rating-eligible matches.
Opponents
2
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

2
Indexed competition matches
Date Opponent Result Event Division
2026-03-15 Kaysar Madaoui
Loss
OPEN DE FRANCE CEJJS GI & NO-GI 2026 No-Gi · Juvenile Boys No-Gi+ OPEN CLASS / White / Juvenile 1 / -56,0 kg (Light feather)
2026-03-15 Evan Fournier
Win
OPEN DE FRANCE CEJJS GI & NO-GI 2026 No-Gi · Juvenile Boys No-Gi+ OPEN CLASS / White / Juvenile 1 / -56,0 kg (Light feather)

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 1,216

Rating-period composition

Rating matches
2 0
Record
1–1 Previous month 1–1
Opponents
2 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 1,216

Rating-period composition

Rating matches
2 0
Record
1–1 Previous month 1–1
Opponents
2 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 1,216

Rating-period composition

Rating matches
2 0
Record
1–1 Previous month 1–1
Opponents
2 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 0 Rating 1,217

Rating-period composition

Rating matches
2 0
Record
1–1 Previous month 1–1
Opponents
2 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 1,217

Rating-period composition

Rating matches
2 0
Record
1–1 Previous month 1–1
Opponents
2 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 2 new matches Change Starting point Rating 1,217

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
March 15, 2026 Kaysar Madaoui
OPEN DE FRANCE CEJJS GI & NO-GI 2026 Juvenile Boys No-Gi+ OPEN CLASS / White / Juvenile 1 / -56,0 kg (Light feather)
Method Submission 03:38 2–12
Marginal influence -38
Win
March 15, 2026 Evan Fournier
OPEN DE FRANCE CEJJS GI & NO-GI 2026 Juvenile Boys No-Gi+ OPEN CLASS / White / Juvenile 1 / -56,0 kg (Light feather)
Method Points 04:00 9–2
Marginal influence +50
Relevant matches
1.7
Official ranking percentile
-
Performance
-

1.7 weighted matches against 2 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,300
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 1 event vote Selected outcome

Registrations and outcomes

OPEN DE FRANCE CEJJS GI & NO-GI 2026
U18 · Counts
Juvenile Boys No-Gi+ OPEN CLASS / White / Juvenile 1 / -56,0 kg (Light feather)
  • Competition age 17
  • Registered age: u18
  • Source category: u18

Classification evidence

Why ≤ 56 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

  • ≤ 56 kg 1 competition event Selected outcome

Registrations and outcomes

OPEN DE FRANCE CEJJS GI & NO-GI 2026
≤ 56 kg · Counts as a competition event
Juvenile Boys No-Gi+ OPEN CLASS / White / Juvenile 1 / -56,0 kg (Light feather)
  • Registered weight class: -56,0 kg (Light feather)
  • Source competition limit: -56,0 kg (Light feather)

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 2 matches in the rating period Selected outcome

Registrations and outcomes

OPEN DE FRANCE CEJJS GI & NO-GI 2026
white · Counts as a match
Juvenile Boys No-Gi+ OPEN CLASS / White / Juvenile 1 / -56,0 kg (Light feather)
  • Source belt category: white

2 matches in the rating period