Berkay Gumrukcuoglu

W–L: 0–2
Gi: 1,124
No-Gi: -
Current form: 0–2
Opponents: 1

Indexed career

Matches

Indexed competition matches
Date	Opponent	Result	Event	Division
2025-11-09	Xander Chen	Loss	GrappleCity: Rotterdam Winter Open	Gi · Teens Gi / White / 14-15 years / -70kg / Boy
Opponent rating 1,256 Expected win chance 50% Current estimated model contribution Rating influence The loss weighs more negatively because the athlete was favored. Because this Gi rating is still provisional, individual matches can have relatively more influence. The evidence weight is lower because this athlete had 2 rated matches at this event. The evidence weight is lower because these athletes met 2 times. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Current rating influence ≈ −29 The loss weighs more negatively because the athlete was favored. Because this Gi rating is still provisional, individual matches can have relatively more influence. The evidence weight is lower because this athlete had 2 rated matches at this event. The evidence weight is lower because these athletes met 2 times. Calculation details This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Opponent rating 1,256 Effective opponent evidence 1.2 Opponent rating status Provisional Expected win chance 50% Result Loss Format Gi Athlete’s Gi rating 2 rated matches · Provisional Evidence weight 0.59 Same-event matches 2 Meetings with this opponent 2 Duration 04:00 Round 2 Score 0–12 Academy during event Renzo Gracie Holland
2025-11-09	Xander Chen	Loss	GrappleCity: Rotterdam Winter Open	Gi · Teens Gi / White / 14-15 years / -70kg / Boy
Opponent rating 1,256 Expected win chance 50% Current estimated model contribution Rating influence The loss weighs more negatively because the athlete was favored. Because this Gi rating is still provisional, individual matches can have relatively more influence. The evidence weight is lower because this athlete had 2 rated matches at this event. The evidence weight is lower because these athletes met 2 times. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Current rating influence ≈ −29 The loss weighs more negatively because the athlete was favored. Because this Gi rating is still provisional, individual matches can have relatively more influence. The evidence weight is lower because this athlete had 2 rated matches at this event. The evidence weight is lower because these athletes met 2 times. Calculation details This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Opponent rating 1,256 Effective opponent evidence 1.2 Opponent rating status Provisional Expected win chance 50% Result Loss Format Gi Athlete’s Gi rating 2 rated matches · Provisional Evidence weight 0.59 Same-event matches 2 Meetings with this opponent 2 Duration 03:16 Round 1 Score 0–11 Academy during event Renzo Gracie Holland
2025-05-03	Anas Amenas	Win	Grappling Industries AMSTERDAM	No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Current estimated model contribution Rating influence This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Current rating influence ≈ 0 This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Calculation details This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Result Win Format No-Gi Duration 03:35 Round 5 Score 0–2 Academy during event Renzo Gracie Holland Outside the current rating period
2025-05-03	Vince Vlaspoel	Win	Grappling Industries AMSTERDAM	No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Current estimated model contribution Rating influence This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Current rating influence ≈ 0 This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Calculation details This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Result Win Format No-Gi Duration 01:15 Round 4 Score 6–0 Academy during event Renzo Gracie Holland Outside the current rating period
2025-05-03	Thimo Klarenbeek	Loss	Grappling Industries AMSTERDAM	No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Current estimated model contribution Rating influence This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Current rating influence ≈ 0 This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Calculation details This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Result Loss Format No-Gi Duration 02:56 Round 3 Score 0–4 Academy during event Renzo Gracie Holland Outside the current rating period
2025-05-03	Lennert Kuiper	Loss	Grappling Industries AMSTERDAM	No-Gi · No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -155 lbs
Current estimated model contribution Rating influence This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Current rating influence ≈ 0 This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Calculation details This number estimates how much the published Overall rating would differ if this match were omitted. It is not a points transaction and cannot be added to other matches. Later results can change this estimate when the model learns more about either athlete. Result Loss Format No-Gi Duration 00:56 Round 1 Score 0–4 Academy during event Renzo Gracie Holland Outside the current rating period