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Boaz Schuttinga

Gracie Barra Groningen

W–L
2–1
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,252
Rating based on No-Gi matches in the past 12 months.
Current form
2–1
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

3
Indexed competition matches
Date Opponent Result Event Division
2025-11-16 Tygo Schoenmakers
Win
GrappleCity: Groningen Winter Open No-Gi · Teens NoGi / White / 16-17 years / -70kg / Boy
2025-11-16 Koen Tapper
Win
GrappleCity: Groningen Winter Open No-Gi · Teens NoGi / White / 16-17 years / -70kg / Boy
2025-11-16 Levi Van Der Molen
Loss
GrappleCity: Groningen Winter Open No-Gi · Teens NoGi / White / 16-17 years / -70kg / Boy

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 -2 Rating 1,252

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 1,254

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 1,254

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 1,254

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 -1 Rating 1,254

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 No new matches Change 0 Rating 1,255

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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.

February 2026 No new matches Change 0 Rating 1,255

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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.

January 2026 No new matches Change 0 Rating 1,255

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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.

December 2025 No new matches Change 0 Rating 1,255

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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.

November 2025 3 new matches Change Starting point Rating 1,255

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
November 16, 2025 Tygo Schoenmakers
GrappleCity: Groningen Winter Open Teens NoGi / White / 16-17 years / -70kg / Boy
Method Points 04:00 5–2
Marginal influence +33
Win
November 16, 2025 Koen Tapper
GrappleCity: Groningen Winter Open Teens NoGi / White / 16-17 years / -70kg / Boy
Method Points 04:00 2–0
Marginal influence +33
Loss
November 16, 2025 Levi Van Der Molen
GrappleCity: Groningen Winter Open Teens NoGi / White / 16-17 years / -70kg / Boy
Method Points 04:00 2–11
Marginal influence -42
Relevant matches
2.3
Official ranking percentile
-
Performance
-

2.3 weighted matches against 3 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,230
Repeated-opponent share
0.0%
Network connectivity
0.1%

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: Groningen Winter Open
U18 · Counts
Teens NoGi / White / 16-17 years / -70kg / Boy
  • Competition age 17
  • Registered age: u18
  • Source category: u18

Classification evidence

Why ≤ 70 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

  • ≤ 70 kg 1 competition event Selected outcome

Registrations and outcomes

GrappleCity: Groningen Winter Open
≤ 70 kg · Counts as a competition event
Teens NoGi / White / 16-17 years / -70kg / Boy
  • Registered weight class: -70kg
  • Source competition limit: -70kg

3 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 3 matches in the rating period Selected outcome

Registrations and outcomes

GrappleCity: Groningen Winter Open
white · Counts as a match
Teens NoGi / White / 16-17 years / -70kg / Boy
  • Source belt category: white

3 matches in the rating period