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Kaan Muhammed Bostanci

Renzo Gracie Holland

W–L
3–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,182
Rating based on Gi matches in the past 12 months.
No-Gi
1,320
Rating based on No-Gi matches in the past 12 months.
Current form
3–2
Results from the ten most recent rating-eligible matches.
Opponents
5
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

2
Events
Date Event Result Format Division
GrappleCity: Rotterdam Winter Open the Netherlands · Gi · 16–17 yo · white · ≤65 kg ; No-Gi · 14–15 yo · white · ≤65 kg 3–1 W–L: Win / Loss GiNo-Gi
  • Teens NoGi / White / 14-15 years / -65kg / Boy
  • Teens Gi / White / 16-17 years / -65kg / Boy
'The Future League 7' by VERSUS the Netherlands · Gi · 14–15 yo · white · ≤65 kg 0–2 W–L: Win / Loss Gi
  • -65kg / 14-15yr / White

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 1,315

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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 0 Rating 1,315

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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 1,315

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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 No new matches Change +1 Rating 1,315

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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.

April 2026 No new matches Change +2 Rating 1,314

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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.

March 2026 No new matches Change +4 Rating 1,312

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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.

February 2026 No new matches Change +5 Rating 1,308

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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.

January 2026 No new matches Change 0 Rating 1,303

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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.

December 2025 No new matches Change 0 Rating 1,303

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 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 3 new matches Change +203 Rating 1,303

Rating-period composition

Rating matches
5 +3
Record
3–2 Previous month 0–2
Opponents
5 +3
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.
Win
November 9, 2025 Timo Van Der Westen
GrappleCity: Rotterdam Winter Open Teens NoGi / White / 14-15 years / -65kg / Boy
Method Points 04:00 0–0
Marginal influence +34
Win
November 9, 2025 Emirhan Altun
GrappleCity: Rotterdam Winter Open Teens NoGi / White / 14-15 years / -65kg / Boy
Method Submission 03:27 0–9
Marginal influence +36
Win
November 9, 2025 Soulaiman Abaghough
GrappleCity: Rotterdam Winter Open Teens Gi / White / 16-17 years / -65kg / Boy
Method Submission 02:34 0–0
Marginal influence +6
October 2025 No new matches Change -4 Rating 1,100

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
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.

September 2025 2 new matches Change Starting point Rating 1,104

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
September 21, 2025 Fosse Rodenburg
'The Future League 7' by VERSUS -65kg / 14-15yr / White
Method Disqualification 02:00 0–0
Marginal influence -36
Loss
September 21, 2025 Marcos Belchior
'The Future League 7' by VERSUS -65kg / 14-15yr / White
Method Submission 03:14 0–17
Marginal influence -33
Relevant matches
4.4
Official ranking percentile
-
Performance
-

4.4 weighted matches against 5 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,317
Repeated-opponent share
0.0%
Network connectivity
80.9%

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 8 event votes Selected outcome

Registrations and outcomes

Grappling Industries AMSTERDAM
U18 · Counts
No Gi Kids / 16 - 17 years (Male) / Beginner (White) / -135 lbs
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Gi Kids / 16 - 17 years (Male) / White / -145 lbs
  • Competition age 17
  • Registered age: u18
  • Source category: u18
2026 AGF Netherlands Championships
U18 · Counts
No Gi Juveniles - Adults / Male / Juvenile / White / Light Feather (Up to 65.80 kg)
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Gi Juveniles - Adults Challenger / Male / Juvenile / White / Challenger I (Up to 79.50 kg)
  • Competition age 17
  • Registered age: u18
  • Source category: u18
GrappleCity: Luxembourg Spring Open
U18 · Counts
Teens Gi / White / 16-17 years / -65kg / Boy
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Grappling Industries BRUSSELS
U18 · Counts
No Gi Kids / 16 - 17 years (Male) / Beginner (White) / -135 lbs
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Gi Kids / 16 - 17 years (Male) / White / -145 lbs
  • Competition age 17
  • Registered age: u18
  • Source category: u18
OPEN BRUSSELS 2 FBJJB RANKING **** ADULT GI & NoGi 14.03.2026
Does not count
Male No-Gi / White / Adult / -61,0 kg (Light feather)
  • Competition age 17
Male Gi (16+) / White / Adult / -64 kg (Light feather)
  • Competition age 17
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
U18 · Counts
Teens No-Gi (Male) / Expert / 65 - 69.9 / 16-17 years
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Teens Gi (Male) / Beginner / 65 - 69.9 / 16-17 years
  • Competition age 17
  • Registered age: u18
  • Source category: u18
GrappleCity: Rotterdam Spring Open
U18 · Counts
Teens NoGi / White / 16-17 years / -65kg / Boy
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Teens Gi / White / 16-17 years / -65kg / Boy
  • Competition age 17
  • Registered age: u18
  • Source category: u18
COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U18 · Counts
Male No-Gi (over 16 y.o.) / White / Youth No-Gi / -62,00 kg
  • Competition age 17
Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -62,00 kg
  • Competition age 17
  • Registered age: u18
  • Source category: u18
GrappleCity: Essen Winter Open
U18 · Counts
Teens NoGi / White / 16-17 years / -65kg / Boy
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Teens Gi / White / 16-17 years / -65kg / Boy
  • Competition age 17
  • Registered age: u18
  • Source category: u18
VERSUS Championship 33 - NoGi & Adults only
Does not count
Male No-Gi / Novice / -65
  • Competition age 17
2026 AGF Brugge Championships
Does not count
Gi Juveniles - Adults Challenger / Male / Juvenile / White / Challenger I (Up to 79.50 kg)
  • Competition age 17
No Gi Juveniles - Adults Challenger / Male / Juvenile / White / Challenger I (Up to 79.50 kg)
  • Competition age 17
INTERCLUB GRAPPLING VLAANDEREN - NO GI - 06/12
Does not count
Male NoGi / White / -64 kg (Light feather)
  • Competition age 16
Grappling Industries BRUSSELS
Does not count
No Gi Teens / Male / Beginner (White) / 16 - 17 years / -145 lbs
  • Competition age 16
  • Registered age: u18
  • Source category: u18
Gi Teens / Male / White / 16 - 17 years / -135 lbs
  • Competition age 16
  • Registered age: u18
  • Source category: u18
2025 AGF Amsterdam Open
Does not count
No Gi Juveniles / Adults / Male / Juvenile / White / Light Feather (Up to 65.80 kg)
  • Competition age 16
  • Registered age: u18
  • Source category: u18
GrappleCity: Rotterdam Winter Open
Does not count
Teens NoGi / White / 14-15 years / -65kg / Boy
  • Competition age 16
  • Registered age: u16
  • Source category: u16
Teens Gi / White / 16-17 years / -65kg / Boy
  • Competition age 16
  • Registered age: u18
  • Source category: u18
'The Future League 7' by VERSUS
Does not count
-65kg / 14-15yr / White
  • Competition age 16
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 65 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

  • ≤ 65 kg 2 competition events Selected outcome

Registrations and outcomes

Grappling Industries AMSTERDAM
Does not count
No Gi Kids / 16 - 17 years (Male) / Beginner (White) / -135 lbs
  • Registered weight class: -135 lbs
  • Source competition limit: -135 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries AMSTERDAM
Does not count
Gi Kids / 16 - 17 years (Male) / White / -145 lbs
  • Registered weight class: -145 lbs
  • Source competition limit: -145 lbs

No matches in the rating period · no valid weight evidence

2026 AGF Netherlands Championships
Does not count
No Gi Juveniles - Adults / Male / Juvenile / White / Light Feather (Up to 65.80 kg)
  • Registered weight class: Light Feather (Up to 65.80 kg)
  • Source competition limit: Light Feather (Up to 65.80 kg)

No matches in the rating period · no valid weight evidence

2026 AGF Netherlands Championships
Does not count
Gi Juveniles - Adults Challenger / Male / Juvenile / White / Challenger I (Up to 79.50 kg)
  • Registered weight class: Challenger I (Up to 79.50 kg)
  • Source competition limit: Challenger I (Up to 79.50 kg)

No matches in the rating period · no valid weight evidence

GrappleCity: Luxembourg Spring Open
Does not count
Teens Gi / White / 16-17 years / -65kg / Boy
  • Registered weight class: -65kg
  • Source competition limit: -65kg

No matches in the rating period · no valid weight evidence

Grappling Industries BRUSSELS
Does not count
No Gi Kids / 16 - 17 years (Male) / Beginner (White) / -135 lbs
  • Registered weight class: -135 lbs
  • Source competition limit: -135 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries BRUSSELS
Does not count
Gi Kids / 16 - 17 years (Male) / White / -145 lbs
  • Registered weight class: -145 lbs
  • Source competition limit: -145 lbs

No matches in the rating period · no valid weight evidence

OPEN BRUSSELS 2 FBJJB RANKING **** ADULT GI & NoGi 14.03.2026
Does not count
Male No-Gi / White / Adult / -61,0 kg (Light feather)
  • Registered weight class: -61,0 kg (Light feather)
  • Source competition limit: -61,0 kg (Light feather)

No matches in the rating period · no valid weight evidence

OPEN BRUSSELS 2 FBJJB RANKING **** ADULT GI & NoGi 14.03.2026
Does not count
Male Gi (16+) / White / Adult / -64 kg (Light feather)
  • Registered weight class: -64 kg (Light feather)
  • Source competition limit: -64 kg (Light feather)

No matches in the rating period · no valid weight evidence

NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
Does not count
Teens No-Gi (Male) / Expert / 65 - 69.9 / 16-17 years
  • Registered weight class: 65 - 69.9
  • Source competition limit: 65 - 69.9

No matches in the rating period · no valid weight evidence

NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
Does not count
Teens Gi (Male) / Beginner / 65 - 69.9 / 16-17 years
  • Registered weight class: 65 - 69.9
  • Source competition limit: 65 - 69.9

No matches in the rating period · no valid weight evidence

GrappleCity: Rotterdam Spring Open
Does not count
Teens NoGi / White / 16-17 years / -65kg / Boy
  • Registered weight class: -65kg
  • Source competition limit: -65kg

No matches in the rating period · no valid weight evidence

GrappleCity: Rotterdam Spring Open
Does not count
Teens Gi / White / 16-17 years / -65kg / Boy
  • Registered weight class: -65kg
  • Source competition limit: -65kg

No matches in the rating period · no valid weight evidence

COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Male No-Gi (over 16 y.o.) / White / Youth No-Gi / -62,00 kg
  • Registered weight class: -62,00 kg
  • Source competition limit: -62,00 kg

No matches in the rating period · no valid weight evidence

COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -62,00 kg
  • Registered weight class: -62,00 kg
  • Source competition limit: -62,00 kg

No matches in the rating period · no valid weight evidence

GrappleCity: Essen Winter Open
Does not count
Teens NoGi / White / 16-17 years / -65kg / Boy
  • Registered weight class: -65kg
  • Source competition limit: -65kg

No matches in the rating period · no valid weight evidence

GrappleCity: Essen Winter Open
Does not count
Teens Gi / White / 16-17 years / -65kg / Boy
  • Registered weight class: -65kg
  • Source competition limit: -65kg

No matches in the rating period · no valid weight evidence

VERSUS Championship 33 - NoGi & Adults only
Does not count
Male No-Gi / Novice / -65

No matches in the rating period · no valid weight evidence

2026 AGF Brugge Championships
Does not count
Gi Juveniles - Adults Challenger / Male / Juvenile / White / Challenger I (Up to 79.50 kg)
  • Registered weight class: Challenger I (Up to 79.50 kg)
  • Source competition limit: Challenger I (Up to 79.50 kg)

No matches in the rating period · no valid weight evidence

2026 AGF Brugge Championships
Does not count
No Gi Juveniles - Adults Challenger / Male / Juvenile / White / Challenger I (Up to 79.50 kg)
  • Registered weight class: Challenger I (Up to 79.50 kg)
  • Source competition limit: Challenger I (Up to 79.50 kg)

No matches in the rating period · no valid weight evidence

INTERCLUB GRAPPLING VLAANDEREN - NO GI - 06/12
Does not count
Male NoGi / White / -64 kg (Light feather)
  • Registered weight class: -64 kg (Light feather)
  • Source competition limit: -64 kg (Light feather)

No matches in the rating period · no valid weight evidence

Grappling Industries BRUSSELS
Does not count
No Gi Teens / Male / Beginner (White) / 16 - 17 years / -145 lbs
  • Registered weight class: -145 lbs
  • Source competition limit: -145 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries BRUSSELS
Does not count
Gi Teens / Male / White / 16 - 17 years / -135 lbs
  • Registered weight class: -135 lbs
  • Source competition limit: -135 lbs

No matches in the rating period · no valid weight evidence

2025 AGF Amsterdam Open
Does not count
No Gi Juveniles / Adults / Male / Juvenile / White / Light Feather (Up to 65.80 kg)
  • Registered weight class: Light Feather (Up to 65.80 kg)
  • Source competition limit: Light Feather (Up to 65.80 kg)

No matches in the rating period · no valid weight evidence

GrappleCity: Rotterdam Winter Open
≤ 65 kg · Counts as a competition event
Teens NoGi / White / 14-15 years / -65kg / Boy
  • Registered weight class: -65kg
  • Source competition limit: -65kg

2 matches in the rating period

GrappleCity: Rotterdam Winter Open
≤ 65 kg · Counts as a competition event
Teens Gi / White / 16-17 years / -65kg / Boy
  • Registered weight class: -65kg
  • Source competition limit: -65kg

1 match in the rating period

'The Future League 7' by VERSUS
≤ 65 kg · Counts as a competition event
-65kg / 14-15yr / White
  • Registered weight class: -65kg
  • Source competition limit: -65kg

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 5 matches in the rating period Selected outcome

Registrations and outcomes

GrappleCity: Rotterdam Winter Open
white · Counts as a match
Teens NoGi / White / 14-15 years / -65kg / Boy
  • Source belt category: white

2 matches in the rating period

GrappleCity: Rotterdam Winter Open
white · Counts as a match
Teens Gi / White / 16-17 years / -65kg / Boy
  • Source belt category: white

1 match in the rating period

'The Future League 7' by VERSUS
white · Counts as a match
-65kg / 14-15yr / White
  • Source belt category: white

2 matches in the rating period