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Léonard Chassin

NrFight Paris

W–L
3–1
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,305
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
0
Silver
3
Bronze
0
Total medals
3
Events with results
4

Full career record

Wins
3
Losses
6
Matches
9
Win rate
33.3%

Ways of winning

Submission
3
Points
0
Decision
0
Disqualification
0

Personal records

Longest winning streak
3
Longest submission streak
3

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
4
Distinct events
2

Ways of winning

  • Submission 3 100%
  • Points 0 0%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
-
Record
-
Win rate
-
Submission share
-

No-Gi

Rating
1305
Record
3–1
Win rate
75%
Submission share
100%

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
1,305
Change over 90 days
+148
Highest rating in 12 months
1,217
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,204
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
0%
Effective evidence
3.4
Confidence
55/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 0–2 0–2 across 2 rematches against 1 repeat opponents.

Rivals

Opponent Head-to-head record Matches
Imad Elamrani 0–2 2

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 0 Rating 1,305

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 +1 Rating 1,305

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 · 2 left period Change +29 Rating 1,304

Rating-period composition

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

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.

May 2026 No new matches Change 0 Rating 1,275

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.

April 2026 No new matches · 3 left period Change +58 Rating 1,275

Rating-period composition

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

3 older matches left the 12-month period: 0 won and 3 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

March 2026 2 new matches Change +33 Rating 1,217

Rating-period composition

Rating matches
9 +2
Record
3–6 Previous month 2–5
Opponents
8 +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
March 8, 2026 Lucas Jacquemier
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Teens No-Gi (Male) / Beginner / 65 - 69.9 / 16-17 years
Method Points 05:00 4–13
Marginal influence -36
Win
March 8, 2026 Fares Ouled Ali
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Teens No-Gi (Male) / Beginner / 65 - 69.9 / 16-17 years
Method Submission 02:40 8–0
Marginal influence +29
February 2026 No new matches Change -5 Rating 1,184

Rating-period composition

Rating matches
7 0
Record
2–5 Previous month 2–5
Opponents
6 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 2 new matches Change +117 Rating 1,189

Rating-period composition

Rating matches
7 +2
Record
2–5 Previous month 0–5
Opponents
6 +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.
Win
January 11, 2026 Owen Rakotozafy
OSS BJJ TOURNAMENT ROUND ROBIN | POINTS RULES KIDS NOGI / Garçon / Juvenile garçon (16-17 ans) / Blanche (White) / -64 kg
Method Submission 01:33 2–0
Marginal influence +21
Win
January 11, 2026 Ashman Asghar
OSS BJJ TOURNAMENT ROUND ROBIN | POINTS RULES KIDS NOGI / Garçon / Juvenile garçon (16-17 ans) / Blanche (White) / -64 kg
Method Submission 05:00 9–0
Marginal influence +32
December 2025 No new matches Change +1 Rating 1,072

Rating-period composition

Rating matches
5 0
Record
0–5 Previous month 0–5
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.

November 2025 No new matches Change +4 Rating 1,071

Rating-period composition

Rating matches
5 0
Record
0–5 Previous month 0–5
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.

October 2025 No new matches Change -1 Rating 1,067

Rating-period composition

Rating matches
5 0
Record
0–5 Previous month 0–5
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.

September 2025 No new matches Change -1 Rating 1,068

Rating-period composition

Rating matches
5 0
Record
0–5 Previous month 0–5
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.

Relevant matches
3.4
Official ranking percentile
-
Performance
-

3.4 weighted matches against 4 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,204
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 5 event votes Selected outcome

Registrations and outcomes

ÉLITE KIDS 6
U18 · Counts
U17 NOGI / Boys / -69 kg / Débutant
  • Competition age 16
  • Registered age: u18
  • Source category: u18
GRAPPLING CHALLENGERS KIDS
U18 · Counts
U17 NOGI / Boys / -69 kg / Débutant
  • Competition age 16
  • Registered age: u18
  • Source category: u18
ELITE KIDS BJJ - GRAPPLING 5
U18 · Counts
Tournoi NOGI / U17 / Garçon / -69 kg / Débutant
  • 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) / Beginner / 65 - 69.9 / 16-17 years
  • Competition age 16
  • Registered age: u18
  • Source category: u18
OSS BJJ TOURNAMENT ROUND ROBIN | POINTS RULES
U18 · Counts
KIDS NOGI / Garçon / Juvenile garçon (16-17 ans) / Blanche (White) / -64 kg
  • Competition age 16
  • Registered age: u18
  • Source category: u18
Grappling Industries PARIS
Does not count
No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -145 lbs
  • Competition age 15
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 64 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

  • ≤ 64 kg 1 competition event Selected outcome
  • ≤ 70 kg 1 competition event

Registrations and outcomes

ÉLITE KIDS 6
Does not count
U17 NOGI / Boys / -69 kg / Débutant
  • Registered weight class: -69 kg
  • Source competition limit: -69 kg

No matches in the rating period · no valid weight evidence

GRAPPLING CHALLENGERS KIDS
Does not count
U17 NOGI / Boys / -69 kg / Débutant
  • Registered weight class: -69 kg
  • Source competition limit: -69 kg

No matches in the rating period · no valid weight evidence

ELITE KIDS BJJ - GRAPPLING 5
Does not count
Tournoi NOGI / U17 / Garçon / -69 kg / Débutant
  • Registered weight class: -69 kg
  • Source competition limit: -69 kg

No matches in the rating period · no valid weight evidence

NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
≤ 70 kg · Counts as a competition event
Teens No-Gi (Male) / Beginner / 65 - 69.9 / 16-17 years
  • Registered weight class: 65 - 69.9
  • Source competition limit: 65 - 69.9

2 matches in the rating period

OSS BJJ TOURNAMENT ROUND ROBIN | POINTS RULES
≤ 64 kg · Counts as a competition event
KIDS NOGI / Garçon / Juvenile garçon (16-17 ans) / Blanche (White) / -64 kg
  • Registered weight class: -64 kg
  • Source competition limit: -64 kg

2 matches in the rating period

Grappling Industries PARIS
Does not count
No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -145 lbs
  • Registered weight class: -145 lbs
  • Source competition limit: -145 lbs

No matches in the rating period · no valid weight evidence

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

OSS BJJ TOURNAMENT ROUND ROBIN | POINTS RULES
white · Counts as a match
KIDS NOGI / Garçon / Juvenile garçon (16-17 ans) / Blanche (White) / -64 kg
  • Source belt category: white

2 matches in the rating period