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Tamerlan Piven

NEWAZA JIUJITSU ACADEMY

W–L
13–6
Won and lost rating-eligible matches in the past 12 months.
Gi
1,477
Rating based on Gi matches in the past 12 months.
No-Gi
1,304
Rating based on No-Gi matches in the past 12 months.
Current form
5–5
Results from the ten most recent rating-eligible matches.
Opponents
15
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

15
Events
Date Event Result Format Division
Kimura Cup Málaga 2026 ES 0–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Yellow / Infant / -34 kg
  • Boys No-Gi / Yellow / Infant / -34 kg
WORLD CUP BJJ 2026 ES · Gi · yellow · ≤35 kg ; No-Gi · yellow · ≤35 kg 2–0 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Yellow / Infantil B / -35,0 kg
  • Kids Boys NO-GI / Yellow / Infantil B / -35,0 kg
ADCC SPAIN ALBACETE 2026 ES · No-Gi · 11–12 yo · ≤36 kg ; No-Gi · 9–10 yo · ≤36 kg 0–2 W–L: Win / Loss No-Gi
  • Boys 9-10 years / Advanced / -36 kg
  • Boys 11-12 years / Advanced / -36 kg
KIMURA CUP MADRID 2026 ES · Gi · yellow · ≤38 kg ; No-Gi · yellow · ≤38 kg 0–3 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Yellow / Infant / -38 Kg
  • Boys No-Gi / Yellow / Junior / -38 Kg
SPAIN BJJ CUP GI & NO-GI 2025 ES · Gi · grey · ≤35 kg ; No-Gi · grey/yellow · ≤38 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Kids Boys NO-GI / Grey-Yellow / Infantil A / -38,0 kg
  • Kids Boys GI / Grey / Infantil A / -35,0 kg
European Cup 2025 \ Gi - NoGi - Kids ES · Gi · 9 yo · grey · ≤36.3 kg ; No-Gi · 9 yo · grey · ≤34.8 kg 3–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Grey / Pee Wee III (9yrs) / -36,30 kg
  • Boys No-Gi / Grey / Pee Wee III (9yrs) / -34,80 kg
KIMURA CUP SEVILLA 2025 ES · Gi · grey · ≤34 kg ; No-Gi · grey · ≤34 kg 4–1 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Grey / kids 3 / -34 kg
  • Boys No-Gi / Grey / kids 3 / -34 kg
TORREMOLINOS BJJ CUP GI & NO-GI 2025 ES · Gi · grey · ≤32 kg ; No-Gi · grey · ≤32 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Grey / Infantil A / -32,0 kg
  • Kids Boys NO-GI / Grey / Infantil A / -32,0 kg
WORLD CUP BJJ 2025 ES · Gi · grey · ≤35 kg ; No-Gi · grey · ≤35 kg 2–1 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Grey / Infantil A / -35,0 kg
  • Kids Boys NO-GI / Grey / Infantil A / -35,0 kg
KIMURA CUP MALAGA ES · Gi · grey · ≤34 kg ; No-Gi · grey · ≤34 kg 6–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Grey / kids 3 / -34 kg
  • Boys No-Gi / Grey / kids 3 / -34 kg
KIMURA CUP ALICANTE 2025. ES · Gi · grey · ≤34 kg ; No-Gi · grey · ≤34 kg 5–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Grey / kids 3 / -34 kg
  • Boys No-Gi / Grey / kids 3 / -34 kg
XVI Campeonato de España 2025 (Gi, NoGi & Kids) ES · Gi · white · ≤33 kg ; No-Gi · grey · ≤32 kg 2–1 W–L: Win / Loss GiNo-Gi
  • Niños GI / White / Alevín / -33 Kg
  • Niños No-GI / Grey / Infantil / -32 Kg
KIMURA CUP SEVILLA 2024 ES · Gi · white · ≤34 kg ; No-Gi · white · ≤34 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / White / kids 3 / -34 kg
  • Boys No-Gi / White / kids 3 / -34 kg
EUROPE CUP BJJ 2024 ES · Gi · white · ≤32 kg 2–0 W–L: Win / Loss Gi
  • Kids Boys GI / White / Infantil A / -32,0 kg
ALTEA SUMMER INTERNATIONAL CUP ES · Gi · 8 yo · white · ≤30.4 kg 0–2 W–L: Win / Loss Gi
  • Boys Gi / White / Pee Wee II (8yrs) / -30,40 kg

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 · 4 left period Change -48 Rating 1,451

Rating-period composition

Rating matches
19 -4
Record
13–6 Previous month 17–6
Opponents
15 -2
Events
6 -1

4 older matches left the 12-month period: 4 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

July 2026 No new matches Change -3 Rating 1,499

Rating-period composition

Rating matches
23 0
Record
17–6 Previous month 17–6
Opponents
17 0
Events
7 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

June 2026 2 new matches · 9 left period Change -32 Rating 1,502

Rating-period composition

Rating matches
23 -7
Record
17–6 Previous month 23–7
Opponents
17 -6
Events
7 -1

9 older matches left the 12-month period: 8 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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
WORLD CUP BJJ 2026 Kids Boys NO-GI / Yellow / Infantil B / -35,0 kg
Method Points 03:00 5–0
Marginal influence +3
Win
WORLD CUP BJJ 2026 Kids Boys GI / Yellow / Infantil B / -35,0 kg
Method Submission 00:52 3–0
Marginal influence +20
May 2026 2 new matches · 5 left period Change -57 Rating 1,534

Rating-period composition

Rating matches
30 -3
Record
23–7 Previous month 28–5
Opponents
23 -2
Events
8 0

5 older matches left the 12-month period: 5 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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 16, 2026 Unknown opponent
ADCC SPAIN ALBACETE 2026 Boys 11-12 years / Advanced / -36 kg
Method Submission 03:25 0–4
Marginal influence -16
Loss
ADCC SPAIN ALBACETE 2026 Boys 9-10 years / Advanced / -36 kg
Method Decision 02:00 0–0
Marginal influence -14
April 2026 No new matches Change -1 Rating 1,591

Rating-period composition

Rating matches
33 0
Record
28–5 Previous month 28–5
Opponents
25 0
Events
8 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 -8 Rating 1,592

Rating-period composition

Rating matches
33 0
Record
28–5 Previous month 28–5
Opponents
25 0
Events
8 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

February 2026 3 new matches · 3 left period Change -27 Rating 1,600

Rating-period composition

Rating matches
33 0
Record
28–5 Previous month 30–3
Opponents
25 0
Events
8 0

3 older matches left the 12-month period: 2 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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
KIMURA CUP MADRID 2026 Boys Gi / Yellow / Infant / -38 Kg
Method Points 03:00 0–4
Marginal influence -15
Loss
February 1, 2026 Oier Pascual
KIMURA CUP MADRID 2026 Boys No-Gi / Yellow / Junior / -38 Kg
Method Points 0–1
Marginal influence -14
Loss
KIMURA CUP MADRID 2026 Boys No-Gi / Yellow / Junior / -38 Kg
Method Points 03:00 0–1
Marginal influence -19
January 2026 No new matches Change +3 Rating 1,627

Rating-period composition

Rating matches
33 0
Record
30–3 Previous month 30–3
Opponents
25 0
Events
8 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

December 2025 4 new matches · 4 left period Change +1 Rating 1,624

Rating-period composition

Rating matches
33 0
Record
30–3 Previous month 30–3
Opponents
25 +2
Events
8 0

4 older matches left the 12-month period: 4 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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
SPAIN BJJ CUP GI & NO-GI 2025 Kids Boys NO-GI / Grey-Yellow / Infantil A / -38,0 kg
Method Submission 01:56 0–0
Marginal influence +5
Win
December 6, 2025 Axel Del Toro Navarro
SPAIN BJJ CUP GI & NO-GI 2025 Kids Boys NO-GI / Grey-Yellow / Infantil A / -38,0 kg
Method Submission 01:05 6–0
Marginal influence +3
Win
December 6, 2025 Isaac Sardinha
SPAIN BJJ CUP GI & NO-GI 2025 Kids Boys GI / Grey / Infantil A / -35,0 kg
Method Submission 02:11 12–0
Marginal influence +13
Win
December 6, 2025 Jonathan Lorente
SPAIN BJJ CUP GI & NO-GI 2025 Kids Boys GI / Grey / Infantil A / -35,0 kg
Method Submission 00:18 2–0
Marginal influence +9
November 2025 3 new matches · 2 left period Change +13 Rating 1,623

Rating-period composition

Rating matches
33 +1
Record
30–3 Previous month 29–3
Opponents
23 +1
Events
8 0

2 older matches left the 12-month period: 2 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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 Federico Bonilla
European Cup 2025 \ Gi - NoGi - Kids Boys No-Gi / Grey / Pee Wee III (9yrs) / -34,80 kg
Method Points 03:00 12–0
Marginal influence +7
Win
European Cup 2025 \ Gi - NoGi - Kids Boys Gi / Grey / Pee Wee III (9yrs) / -36,30 kg
Method Submission 00:28 6–0
Marginal influence +12
Win
November 9, 2025 Rafael Manrique Finat
European Cup 2025 \ Gi - NoGi - Kids Boys Gi / Grey / Pee Wee III (9yrs) / -36,30 kg
Method Submission 0–0
Marginal influence +12
October 2025 5 new matches Change +17 Rating 1,610

Rating-period composition

Rating matches
32 +5
Record
29–3 Previous month 25–2
Opponents
22 +3
Events
8 +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
October 4, 2025 Mohamed Amin Belahcen
KIMURA CUP SEVILLA 2025 Boys No-Gi / Grey / kids 3 / -34 kg
Method Points 02:00 3–4
Marginal influence -10
Win
October 4, 2025 Bronx Romero
KIMURA CUP SEVILLA 2025 Boys No-Gi / Grey / kids 3 / -34 kg
Method Submission 00:39 10–0
Marginal influence +6
Win
October 4, 2025 Mohamed Amin Belahcen
KIMURA CUP SEVILLA 2025 Boys Gi / Grey / kids 3 / -34 kg
Method Points 02:00 2–0
Marginal influence +21
Win
KIMURA CUP SEVILLA 2025 Boys Gi / Grey / kids 3 / -34 kg
Method Submission 01:26 10–0
Marginal influence +11
Win
October 4, 2025 Julio Miño Cid
KIMURA CUP SEVILLA 2025 Boys Gi / Grey / kids 3 / -34 kg
Method Submission 00:45 6–0
Marginal influence +11
September 2025 No new matches Change 0 Rating 1,593

Rating-period composition

Rating matches
27 0
Record
25–2 Previous month 25–2
Opponents
19 0
Events
7 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

Relevant matches
15.9
Official ranking percentile
Top 15%
Performance
12.9 pp above expectation

15.9 weighted matches against 15 different opponents across 6 events

Weighted win rate
70.2%
Expected win rate
57.3%
Average opponent rating
1,319
Repeated-opponent share
21.1%
Network connectivity
80.9%

Classification evidence

Why U12?

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

  • U12 4 event votes Selected outcome

Registrations and outcomes

Kimura Cup Málaga 2026
U12 · Counts
Boys No-Gi / Yellow / Infant / -34 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Boys Gi / Yellow / Infant / -34 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
WORLD CUP BJJ 2026
U12 · Counts
Kids Boys NO-GI / Yellow / Infantil B / -35,0 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Kids Boys GI / Yellow / Infantil B / -35,0 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
ADCC SPAIN ALBACETE 2026
U12 · Counts
Boys 11-12 years / Advanced / -36 kg
  • Competition age 10
Boys 9-10 years / Advanced / -36 kg
  • Competition age 10
KIMURA CUP MADRID 2026
U12 · Counts
Boys No-Gi / Yellow / Junior / -38 Kg
  • Competition age 10
  • Registered age: u14
  • Source category: u14
Boys Gi / Yellow / Infant / -38 Kg
  • Competition age 10
  • Registered age: u14
  • Source category: u14
SPAIN BJJ CUP GI & NO-GI 2025
Does not count
Kids Boys NO-GI / Grey-Yellow / Infantil A / -38,0 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Kids Boys GI / Grey / Infantil A / -35,0 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
MÁLAGA INTERNATIONAL CUP
Does not count
Boys NOGI / Grey / Pee Wee III (9yrs) / -33,40 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Boys Gi / Grey / Pee Wee III (9yrs) / -33,40 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
European Cup 2025 \ Gi - NoGi - Kids
Does not count
Boys No-Gi / Grey / Pee Wee III (9yrs) / -34,80 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Boys Gi / Grey / Pee Wee III (9yrs) / -36,30 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
KIMURA CUP SEVILLA 2025
Does not count
Boys No-Gi / Grey / kids 3 / -34 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Boys Gi / Grey / kids 3 / -34 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
ANDALUCIA BJJ CUP GI & NO-GI 2025
Does not count
Kids Boys NO-GI / Grey / Infantil B / -32,0 kg
  • Competition age 9
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 35 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

  • ≤ 35 kg 1 competition event Selected outcome
  • ≤ 36 kg 1 competition event
  • ≤ 38 kg 1 competition event

Registrations and outcomes

Kimura Cup Málaga 2026
Does not count
Boys No-Gi / Yellow / Infant / -34 kg
  • Registered weight class: -34 kg
  • Source competition limit: -34 kg

No matches in the rating period · no valid weight evidence

Kimura Cup Málaga 2026
Does not count
Boys Gi / Yellow / Infant / -34 kg
  • Registered weight class: -34 kg
  • Source competition limit: -34 kg

No matches in the rating period · no valid weight evidence

WORLD CUP BJJ 2026
≤ 35 kg · Counts as a competition event
Kids Boys NO-GI / Yellow / Infantil B / -35,0 kg
  • Registered weight class: -35,0 kg
  • Source competition limit: -35,0 kg

1 match in the rating period

WORLD CUP BJJ 2026
≤ 35 kg · Counts as a competition event
Kids Boys GI / Yellow / Infantil B / -35,0 kg
  • Registered weight class: -35,0 kg
  • Source competition limit: -35,0 kg

1 match in the rating period

ADCC SPAIN ALBACETE 2026
≤ 36 kg · Counts as a competition event
Boys 11-12 years / Advanced / -36 kg
  • Registered weight class: -36 kg
  • Source competition limit: -36 kg

1 match in the rating period

ADCC SPAIN ALBACETE 2026
≤ 36 kg · Counts as a competition event
Boys 9-10 years / Advanced / -36 kg
  • Registered weight class: -36 kg
  • Source competition limit: -36 kg

1 match in the rating period

KIMURA CUP MADRID 2026
≤ 38 kg · Counts as a competition event
Boys No-Gi / Yellow / Junior / -38 Kg
  • Registered weight class: -38 Kg
  • Source competition limit: -38 Kg

2 matches in the rating period

KIMURA CUP MADRID 2026
≤ 38 kg · Counts as a competition event
Boys Gi / Yellow / Infant / -38 Kg
  • Registered weight class: -38 Kg
  • Source competition limit: -38 Kg

1 match in the rating period

SPAIN BJJ CUP GI & NO-GI 2025
≤ 38 kg · Does not count
Kids Boys NO-GI / Grey-Yellow / Infantil A / -38,0 kg
  • Registered weight class: -38,0 kg
  • Source competition limit: -38,0 kg

2 matches in the rating period · conflicting upper weight limits make this event ambiguous

SPAIN BJJ CUP GI & NO-GI 2025
≤ 35 kg · Does not count
Kids Boys GI / Grey / Infantil A / -35,0 kg
  • Registered weight class: -35,0 kg
  • Source competition limit: -35,0 kg

2 matches in the rating period · conflicting upper weight limits make this event ambiguous

MÁLAGA INTERNATIONAL CUP
Does not count
Boys NOGI / Grey / Pee Wee III (9yrs) / -33,40 kg
  • Registered weight class: -33,40 kg
  • Source competition limit: -33,40 kg

No matches in the rating period · no valid weight evidence

MÁLAGA INTERNATIONAL CUP
Does not count
Boys Gi / Grey / Pee Wee III (9yrs) / -33,40 kg
  • Registered weight class: -33,40 kg
  • Source competition limit: -33,40 kg

No matches in the rating period · no valid weight evidence

European Cup 2025 \ Gi - NoGi - Kids
≤ 35 kg · Does not count
Boys No-Gi / Grey / Pee Wee III (9yrs) / -34,80 kg
  • Registered weight class: -34,80 kg
  • Source competition limit: -34,80 kg

1 match in the rating period · conflicting upper weight limits make this event ambiguous

European Cup 2025 \ Gi - NoGi - Kids
≤ 36 kg · Does not count
Boys Gi / Grey / Pee Wee III (9yrs) / -36,30 kg
  • Registered weight class: -36,30 kg
  • Source competition limit: -36,30 kg

2 matches in the rating period · conflicting upper weight limits make this event ambiguous

KIMURA CUP SEVILLA 2025
≤ 34 kg · Does not count
Boys No-Gi / Grey / kids 3 / -34 kg
  • Registered weight class: -34 kg
  • Source competition limit: -34 kg

2 matches in the rating period · outside the three most recent unambiguous events

KIMURA CUP SEVILLA 2025
≤ 34 kg · Does not count
Boys Gi / Grey / kids 3 / -34 kg
  • Registered weight class: -34 kg
  • Source competition limit: -34 kg

3 matches in the rating period · outside the three most recent unambiguous events

ANDALUCIA BJJ CUP GI & NO-GI 2025
Does not count
Kids Boys NO-GI / Grey / Infantil B / -32,0 kg
  • Registered weight class: -32,0 kg
  • Source competition limit: -32,0 kg

No matches in the rating period · no valid weight evidence

Classification evidence

Why Grey?

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

  • grey 10 matches in the rating period Selected outcome
  • yellow 7 matches in the rating period

Registrations and outcomes

WORLD CUP BJJ 2026
yellow · Counts as a match
Kids Boys NO-GI / Yellow / Infantil B / -35,0 kg
  • Source belt category: yellow

1 match in the rating period

WORLD CUP BJJ 2026
yellow · Counts as a match
Kids Boys GI / Yellow / Infantil B / -35,0 kg
  • Source belt category: yellow

1 match in the rating period

KIMURA CUP MADRID 2026
yellow · Counts as a match
Boys Gi / Yellow / Infant / -38 Kg
  • Source belt category: yellow

1 match in the rating period

KIMURA CUP MADRID 2026
yellow · Counts as a match
Boys No-Gi / Yellow / Junior / -38 Kg
  • Source belt category: yellow

2 matches in the rating period

SPAIN BJJ CUP GI & NO-GI 2025
yellow · Counts as a match
Kids Boys NO-GI / Grey-Yellow / Infantil A / -38,0 kg
  • Source belt category: yellow

2 matches in the rating period

SPAIN BJJ CUP GI & NO-GI 2025
grey · Counts as a match
Kids Boys GI / Grey / Infantil A / -35,0 kg
  • Source belt category: grey

2 matches in the rating period

European Cup 2025 \ Gi - NoGi - Kids
grey · Counts as a match
Boys No-Gi / Grey / Pee Wee III (9yrs) / -34,80 kg
  • Source belt category: grey

1 match in the rating period

European Cup 2025 \ Gi - NoGi - Kids
grey · Counts as a match
Boys Gi / Grey / Pee Wee III (9yrs) / -36,30 kg
  • Source belt category: grey

2 matches in the rating period

KIMURA CUP SEVILLA 2025
grey · Counts as a match
Boys No-Gi / Grey / kids 3 / -34 kg
  • Source belt category: grey

2 matches in the rating period

KIMURA CUP SEVILLA 2025
grey · Counts as a match
Boys Gi / Grey / kids 3 / -34 kg
  • Source belt category: grey

3 matches in the rating period