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Jean Riabzev

Helios Project

≤ 38 kg
W–L
29–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,612
Rating based on Gi matches in the past 12 months.
No-Gi
1,596
Rating based on No-Gi matches in the past 12 months.
Current form
9–1
Results from the ten most recent rating-eligible matches.
Opponents
22
Unique opponents faced in rating-eligible matches in the past 12 months.

Scheduled

Tournament history

Events

14
Events
Date Event Result Format Division
ADCC Amateur World Championship 2026 PL · No-Gi · 9–10 yo · ≤40 kg 3–1 W–L: Win / Loss No-Gi
  • Boys 9-10 years / Boys 9-10 years / -40 kg
ADCC Suisse Open Championship 2026 CH · No-Gi · 9–10 yo · ≤36 kg 3–0 W–L: Win / Loss No-Gi
  • BOYS / 9-10 years / -36 kg
NAGA Germany Grappling Championship Germany · Gi · 10–11 yo · 35–39.9 kg ; No-Gi · 10–11 yo · 35–39.9 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Children No-Gi (Male) / Intermediate / 35 - 39.9 / 10-11 years
  • Children Gi (Male) / Intermediate / 35 - 39.9 / 10-11 years
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 Belgium · Gi · 16 yo · ≤38 kg 3–0 W–L: Win / Loss Gi
  • BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -38kg
2026 AGF Dusseldorf Championships Germany · Gi · 10–11 yo · grey · ≤38.6 kg ; No-Gi · 10–11 yo · grey · ≤38.6 kg 5–1 W–L: Win / Loss GiNo-Gi
  • Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
  • No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Germany · Gi · U16 · yellow · ≤38 kg ; No-Gi · U16 · yellow · ≤38 kg 1–2 W–L: Win / Loss GiNo-Gi
  • Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
  • Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Germany · Gi · U16 · grey · ≤38 kg 4–0 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
GrappleCity: Rotterdam Winter Open the Netherlands · Gi · 8–9 yo · grey · ≤40 kg ; No-Gi · 8–9 yo · grey · ≤35 kg 3–1 W–L: Win / Loss GiNo-Gi
  • Kids NoGi / Grey / Kids 8-9 years / -35kg
  • Kids Gi / Grey / Kids 8-9 years / -40kg
NAGA Europe Grappling Championship Germany · Gi · 8–9 yo · 35–39.9 kg ; No-Gi · 8–9 yo · 35–39.9 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Children No-Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
  • Children Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Germany · Gi · U16 · grey · ≤38 kg ; No-Gi · U16 · grey · ≤34 kg 5–0 W–L: Win / Loss GiNo-Gi
  • Boys No-Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
  • Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
GERMAN NATIONAL KIDS OPEN CHAMPIONSHIP 2025 Germany · Gi · U16 · grey · ≤34 kg ; No-Gi · U16 · grey · ≤34 kg 8–1 W–L: Win / Loss GiNo-Gi
  • Boys Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
  • Boys No-Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
Nijmegen Open BJJ 2025 the Netherlands · Gi · 8–9 yo · grey/yellow · ≤38 kg 3–1 W–L: Win / Loss Gi
  • Kids / 8 - 9 years boys / Grey & Yellow / -38 kg
FRANKFURT WINTER OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Germany · Gi · U16 · grey · ≤34 kg ; No-Gi · U16 · grey · ≤34 kg 6–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
  • Boys No-Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
Inclusive Nikolaus KIDS&TEENS BJJ Championship GI + NO GI Germany · Gi · white · 30.01–42 kg ; No-Gi · white · 30.01–34 kg 5–0 W–L: Win / Loss GiNo-Gi
  • Kids Boys Gi / Kids 1 / White / 30,01 kg - 42,00 kg
  • Kids Boys No-Gi / Kids 1 / White / 30,01 kg - 34,00 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 Change +1 Rating 1,661

Rating-period composition

Rating matches
33 0
Record
29–4 Previous month 29–4
Opponents
22 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.

July 2026 No new matches Change -1 Rating 1,660

Rating-period composition

Rating matches
33 0
Record
29–4 Previous month 29–4
Opponents
22 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.

June 2026 No new matches · 9 left period Change -18 Rating 1,661

Rating-period composition

Rating matches
33 -9
Record
29–4 Previous month 37–5
Opponents
22 -4
Events
8 -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.

May 2026 7 new matches · 4 left period Change +37 Rating 1,679

Rating-period composition

Rating matches
42 +3
Record
37–5 Previous month 33–6
Opponents
26 0
Events
9 +1

4 older matches left the 12-month period: 3 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
May 23, 2026 Luca CIOARA
NAGA Germany Grappling Championship Children No-Gi (Male) / Intermediate / 35 - 39.9 / 10-11 years
Method Points 03:00 5–2
Marginal influence +4
Win
May 23, 2026 Antonio Brigden
NAGA Germany Grappling Championship Children No-Gi (Male) / Intermediate / 35 - 39.9 / 10-11 years
Method Submission 02:08 6–0
Marginal influence +4
Win
May 23, 2026 Luca CIOARA
NAGA Germany Grappling Championship Children Gi (Male) / Intermediate / 35 - 39.9 / 10-11 years
Method Decision 03:00 0–0
Marginal influence +7
Win
May 23, 2026 Antonio Brigden
NAGA Germany Grappling Championship Children Gi (Male) / Intermediate / 35 - 39.9 / 10-11 years
Method Submission 00:27 0–0
Marginal influence +5
Win
May 9, 2026 Hilal Laoukili
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -38kg
Method Submission 01:01 0–0
Marginal influence +7
Win
May 9, 2026 Amir Aouda
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -38kg
Method Submission 00:21 0–0
Marginal influence +4
Win
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026 BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -38kg
Method Submission 00:35 0–0
Marginal influence +5
April 2026 No new matches Change -2 Rating 1,642

Rating-period composition

Rating matches
39 0
Record
33–6 Previous month 33–6
Opponents
26 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 +7 Rating 1,644

Rating-period composition

Rating matches
39 0
Record
33–6 Previous month 33–6
Opponents
26 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 9 new matches · 4 left period Change -16 Rating 1,637

Rating-period composition

Rating matches
39 +5
Record
33–6 Previous month 31–3
Opponents
26 +2
Events
8 +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.

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
February 28, 2026 Alexander Erpelding
2026 AGF Dusseldorf Championships No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Points 03:00 3–1
Marginal influence +4
Win
February 28, 2026 Vidan Vujovic
2026 AGF Dusseldorf Championships No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Submission 00:31 7–0
Marginal influence +2
Win
February 28, 2026 Luca CIOARA
2026 AGF Dusseldorf Championships No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Submission 02:48 2–2
Marginal influence +4
Loss
February 28, 2026 Luca CIOARA
2026 AGF Dusseldorf Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Submission 00:39 0–0
Marginal influence -8
Win
February 28, 2026 Alexander Erpelding
2026 AGF Dusseldorf Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Submission 00:38 5–0
Marginal influence +5
Win
February 28, 2026 Vidan Vujovic
2026 AGF Dusseldorf Championships Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
Method Submission 01:39 6–0
Marginal influence +2
Loss
February 7, 2026 Mohamed Benali
COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
Method Submission 00:38 0–0
Marginal influence -16
Loss
February 7, 2026 Mohamed Benali
COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
Method Decision 03:00 0–0
Marginal influence -14
Win
February 7, 2026 Dennis Alic
COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
Method Submission 00:32 2–0
Marginal influence +4
January 2026 No new matches Change -4 Rating 1,653

Rating-period composition

Rating matches
34 0
Record
31–3 Previous month 31–3
Opponents
24 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.

December 2025 4 new matches · 5 left period Change 0 Rating 1,657

Rating-period composition

Rating matches
34 -1
Record
31–3 Previous month 32–3
Opponents
24 -1
Events
7 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.
Win
December 20, 2025 Nathan Ambach
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
Method Submission 00:55 0–0
Marginal influence +12
Win
December 20, 2025 Chedey Hernandez Ortiz
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
Method Submission 00:11 0–0
Marginal influence +1
Win
December 20, 2025 Efe Dunder
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
Method Submission 00:32 0–0
Marginal influence +4
Win
December 20, 2025 Aaron Lehr
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
Method Submission 00:20 0–0
Marginal influence +6
November 2025 4 new matches Change +16 Rating 1,657

Rating-period composition

Rating matches
35 +4
Record
32–3 Previous month 29–2
Opponents
25 +3
Events
7 +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 Mohamed Amin Belahcen
GrappleCity: Rotterdam Winter Open Kids NoGi / Grey / Kids 8-9 years / -35kg
Method Points 03:00 4–2
Marginal influence +7
Win
November 9, 2025 Sem Schildermans
GrappleCity: Rotterdam Winter Open Kids NoGi / Grey / Kids 8-9 years / -35kg
Method Submission 00:23 3–0
Marginal influence +7
Loss
November 9, 2025 Mohamed Amin Belahcen
GrappleCity: Rotterdam Winter Open Kids Gi / Grey / Kids 8-9 years / -40kg
Method Disqualification 00:55 0–2
Marginal influence -14
Win
November 9, 2025 Seth Vermeulen
GrappleCity: Rotterdam Winter Open Kids Gi / Grey / Kids 8-9 years / -40kg
Method Submission 00:34 0–0
Marginal influence +3
October 2025 4 new matches Change +35 Rating 1,641

Rating-period composition

Rating matches
31 +4
Record
29–2 Previous month 25–2
Opponents
22 +2
Events
6 +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
October 4, 2025 Naïm-Haddou AOULOU
NAGA Europe Grappling Championship Children No-Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
Method Submission 00:47 0–0
Marginal influence +6
Win
October 4, 2025 David Happersberger
NAGA Europe Grappling Championship Children No-Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
Method Submission 02:24 9–0
Marginal influence +3
Win
October 4, 2025 David Happersberger
NAGA Europe Grappling Championship Children Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
Method Submission 01:01 0–0
Marginal influence +6
Win
October 4, 2025 Bruno Preißl
NAGA Europe Grappling Championship Children Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
Method Submission 00:27 1–0
Marginal influence +2
September 2025 5 new matches Change +31 Rating 1,606

Rating-period composition

Rating matches
27 +5
Record
25–2 Previous month 20–2
Opponents
20 +2
Events
5 +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
September 13, 2025 Thies Herter
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
Method Submission 00:19 0–0
Marginal influence +9
Win
September 13, 2025 Jaan Faizi
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
Method Submission 00:28 2–0
Marginal influence +3
Win
September 13, 2025 Thies Herter
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
Method Submission 00:32 2–0
Marginal influence +1
Win
September 13, 2025 Nathan Ambach
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
Method Submission 00:42 0–2
Marginal influence +9
Win
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
Method Submission 00:38 5–0
Marginal influence +6
Relevant matches
25.5
Official ranking percentile
Top 1%
Performance
17.6 pp above expectation

25.5 weighted matches against 22 different opponents across 8 events

Weighted win rate
87.2%
Expected win rate
69.6%
Average opponent rating
1,416
Repeated-opponent share
33.3%
Network connectivity
87.6%

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 5 event votes Selected outcome

Registrations and outcomes

ADCC Suisse Open Championship 2026
U12 · Counts
BOYS / 9-10 years / -36 kg
  • Competition age 10
NAGA Germany Grappling Championship
U12 · Counts
Children Gi (Male) / Intermediate / 35 - 39.9 / 10-11 years
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Children No-Gi (Male) / Intermediate / 35 - 39.9 / 10-11 years
  • Competition age 10
  • Registered age: u12
  • Source category: u12
OPEN BRUSSELS 3 FBJJB RANKING KID GI & NoGi 09.05.2026
U12 · Counts
BOY GI DIVISION (-16years old) / KID GI / KID (-16years old) / -38kg
  • Competition age 10
2026 AGF Dusseldorf Championships
U12 · Counts
Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
  • Competition age 10
  • Registered age: u12
  • Source category: u12
No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
  • Competition age 10
  • Registered age: u12
  • Source category: u12
COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U12 · Counts
Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
GrappleCity: Rotterdam Winter Open
Does not count
Kids NoGi / Grey / Kids 8-9 years / -35kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Kids Gi / Grey / Kids 8-9 years / -40kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
NAGA Europe Grappling Championship
Does not count
Children Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Children No-Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
  • Competition age 9
  • Registered age: u10
  • Source category: u10
DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP
Does not count
Boys No-Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10

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 19 matches in the rating period Selected outcome
  • yellow 3 matches in the rating period

Registrations and outcomes

2026 AGF Dusseldorf Championships
grey · Counts as a match
No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
  • Source belt category: grey

3 matches in the rating period

2026 AGF Dusseldorf Championships
grey · Counts as a match
Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Gray / Feather III (Up to 38.60 kg)
  • Source belt category: grey

3 matches in the rating period

COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
yellow · Counts as a match
Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
  • Source belt category: yellow

1 match in the rating period

COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
yellow · Counts as a match
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -38 kg
  • Source belt category: yellow

2 matches in the rating period

HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
  • Source belt category: grey

4 matches in the rating period

GrappleCity: Rotterdam Winter Open
grey · Counts as a match
Kids NoGi / Grey / Kids 8-9 years / -35kg
  • Source belt category: grey

2 matches in the rating period

GrappleCity: Rotterdam Winter Open
grey · Counts as a match
Kids Gi / Grey / Kids 8-9 years / -40kg
  • Source belt category: grey

2 matches in the rating period

DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 8-9 years / -38 kg
  • Source belt category: grey

2 matches in the rating period

DÜSSELDORF FALL OPEN CHAMPIONSHIP 2025 I EUROPEAN CUP
grey · Counts as a match
Boys No-Gi (under 16 y.o.) / Grey / 8-9 years / -34 kg
  • Source belt category: grey

3 matches in the rating period