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Sam Westra

Gracie Barra Maastricht

W–L
1–7
Won and lost rating-eligible matches in the past 12 months.
Gi
1,140
Rating based on Gi matches in the past 12 months.
No-Gi
1,108
Rating based on No-Gi matches in the past 12 months.
Current form
1–7
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

8
Indexed competition matches
Date Opponent Result Event Division
2026-05-09 Minh Khoi Tran
Loss
Lion Cub Jiu Jitsu Competition 6 Gi · Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
2026-05-09 Milosz Kirchner
Loss
Lion Cub Jiu Jitsu Competition 6 Gi · Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
2026-05-09 Omar Tahsin Haji Moustafa
Loss
Lion Cub Jiu Jitsu Competition 6 Gi · Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
2026-05-09 Yago Diniz De Araujo
Loss
Lion Cub Jiu Jitsu Competition 6 Gi · Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
2026-05-09 Ridouan Chouhou
Loss
Lion Cub Jiu Jitsu Competition 6 No-Gi · Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White & Grey belt / -27 & -30 kg
2026-05-09 Hamza Eralgin
Loss
Lion Cub Jiu Jitsu Competition 6 No-Gi · Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White & Grey belt / -27 & -30 kg
2026-03-22 Aria Sofia Stahlhofen
Win
The Future League 9 - Gi & NoGi Gi · Gi - 26
2026-03-22 Minh Khoi Tran
Loss
The Future League 9 - Gi & NoGi Gi · Gi - 26

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 1,198

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
7 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 +3 Rating 1,198

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
7 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 0 Rating 1,195

Rating-period composition

Rating matches
8 0
Record
1–7 Previous month 1–7
Opponents
7 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 6 new matches Change -10 Rating 1,195

Rating-period composition

Rating matches
8 +6
Record
1–7 Previous month 1–1
Opponents
7 +5
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
May 9, 2026 Minh Khoi Tran
Lion Cub Jiu Jitsu Competition 6 Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
Method Points 03:00 0–0
Marginal influence -13
Loss
May 9, 2026 Milosz Kirchner
Lion Cub Jiu Jitsu Competition 6 Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
Method Submission 02:44 6–6
Marginal influence -27
Loss
Lion Cub Jiu Jitsu Competition 6 Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
Method Submission 00:48 0–7
Marginal influence -13
Loss
Lion Cub Jiu Jitsu Competition 6 Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
Method Points 03:00 2–4
Marginal influence -10
Loss
May 9, 2026 Ridouan Chouhou
Lion Cub Jiu Jitsu Competition 6 Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White & Grey belt / -27 & -30 kg
Method Submission 00:24 0–0
Marginal influence -5
Loss
May 9, 2026 Hamza Eralgin
Lion Cub Jiu Jitsu Competition 6 Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White & Grey belt / -27 & -30 kg
Method Submission 00:18 0–0
Marginal influence -8
April 2026 No new matches Change -1 Rating 1,205

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 1,206

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
The Future League 9 - Gi & NoGi Gi - 26
Method Points 03:00 2–0
Marginal influence +34
Loss
March 22, 2026 Minh Khoi Tran
The Future League 9 - Gi & NoGi Gi - 26
Method Submission 02:08 0–10
Marginal influence -15
Relevant matches
5.7
Official ranking percentile
Top 87%
Performance
-

5.7 weighted matches against 7 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,326
Repeated-opponent share
12.5%
Network connectivity
87.6%

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 2 event votes Selected outcome

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 6
U10 · Counts
Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White & Grey belt / -27 & -30 kg
  • Competition age 9
  • Registered age: u8
  • Source category: u8
Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
The Future League 9 - Gi & NoGi
U10 · Counts
Gi - 26
  • Competition age 9
  • Registered age: u12
  • Source category: u12

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
  • grey 2 matches in the rating period

Registrations and outcomes

Lion Cub Jiu Jitsu Competition 6
white · Counts as a match
Boys GI / 8 years old (DAY 2: Sunday) / White & Grey belt / -24 & -27 kg
  • Source belt category: white

4 matches in the rating period

Lion Cub Jiu Jitsu Competition 6
grey · Counts as a match
Boys NO-GI / 7 & 8 years old (DAY 2: Sunday) / White & Grey belt / -27 & -30 kg
  • Source belt category: grey

2 matches in the rating period