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River Kotsonis

EN2 BJJ

W–L
2–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,169
Rating based on Gi matches in the past 12 months.
No-Gi
1,169
Rating based on No-Gi matches in the past 12 months.
Current form
2–4
Results from the ten most recent rating-eligible matches.
Opponents
1
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

6
Indexed competition matches
Date Opponent Result Event Division
2026-03-08 Alessio Darugna
Loss
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Gi · Children Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
2026-03-08 Alessio Darugna
Win
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Gi · Children Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
2026-03-08 Alessio Darugna
Loss
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Gi · Children Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
2026-03-08 Alessio Darugna
Loss
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) No-Gi · Children No-Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
2026-03-08 Alessio Darugna
Win
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) No-Gi · Children No-Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
2026-03-08 Alessio Darugna
Loss
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) No-Gi · Children No-Gi (Male) / Intermediate / 20 - 24.9 / 6-7 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 0 Rating 1,257

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
1 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 1,257

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
1 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 0 Rating 1,257

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
1 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 1,257

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
1 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 1,257

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
1 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 6 new matches Change Starting point Rating 1,257

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 8, 2026 Alessio Darugna
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
Method Points 03:00 2–6
Marginal influence -12
Win
March 8, 2026 Alessio Darugna
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
Method Points 03:00 5–4
Marginal influence +13
Loss
March 8, 2026 Alessio Darugna
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
Method Points 03:00 0–10
Marginal influence -12
Loss
March 8, 2026 Alessio Darugna
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children No-Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
Method Submission 00:40 0–4
Marginal influence -12
Win
March 8, 2026 Alessio Darugna
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children No-Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
Method Points 03:00 4–0
Marginal influence +13
Loss
March 8, 2026 Alessio Darugna
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children No-Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
Method Points 03:00 2–7
Marginal influence -12
Relevant matches
2.6
Official ranking percentile
-
Performance
-

2.6 weighted matches against 1 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,317
Repeated-opponent share
83.3%
Network connectivity
0.0%

Classification evidence

Why U10?

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

  • U10 1 event vote Selected outcome

Registrations and outcomes

NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
U10 · Counts
Children Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
  • Competition age 8
  • Registered age: u8
  • Source category: u8
Children No-Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
  • Competition age 8
  • Registered age: u8
  • Source category: u8

Classification evidence

Why ≤ 25 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

  • ≤ 25 kg 1 competition event Selected outcome

Registrations and outcomes

NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
≤ 25 kg · Counts as a competition event
Children Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
  • Registered weight class: 20 - 24.9
  • Source competition limit: 20 - 24.9

3 matches in the rating period

NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
≤ 25 kg · Counts as a competition event
Children No-Gi (Male) / Intermediate / 20 - 24.9 / 6-7 years
  • Registered weight class: 20 - 24.9
  • Source competition limit: 20 - 24.9

3 matches in the rating period