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UA

Oleksandr Vorobiov

MATHIAS RIBEIRO TEAM

W–L
5–0
Won and lost rating-eligible matches in the past 12 months.
Gi
1,372
Rating based on Gi matches in the past 12 months.
No-Gi
1,316
Rating based on No-Gi matches in the past 12 months.
Current form
5–0
Results from the ten most recent rating-eligible matches.
Opponents
4
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

15
Events
Date Event Result Format Division
WORLD CUP BJJ 2026 ES · No-Gi · grey · ≤46 kg 1–0 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Grey / Infanto Juvenil A / -46,0 kg
  • Kids Boys NO-GI / Grey / Infanto Juvenil A / -46,0 kg
ADCC SPAIN ALBACETE 2026 ES · No-Gi · 11–12 yo · ≤50 kg 1–0 W–L: Win / Loss No-Gi
  • Boys 11-12 years / Intermediate / -50 kg
KIMURA CUP ALICANTE 2026 ES · Gi · grey · ≤45 kg 3–0 W–L: Win / Loss Gi
  • Boys Gi / Grey / Junior / -45 kg
SUMMER CUP BJJ GI & NO-GI 2025 ES · Gi · grey · ≤38 kg 2–0 W–L: Win / Loss Gi
  • Kids Boys GI / Grey / Infantil B / -38,0 kg
WORLD CUP BJJ 2025 ES · Gi · grey · ≤38 kg ; No-Gi · grey · ≤38 kg 4–1 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Grey / Infantil B / -38,0 kg
  • Kids Boys NO-GI / Grey / Infantil B / -38,0 kg
KIMURA CUP ALICANTE 2025. ES · Gi · grey · ≤38 kg ; No-Gi · grey · ≤38 kg 3–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Grey / Infant / -38 Kg
  • Boys No-Gi / Grey / Infant / -38 Kg
EUROPE CUP BJJ 2024 ES · Gi · grey · ≤35 kg 1–1 W–L: Win / Loss Gi
  • Kids Boys GI / Grey / Infantil B / -35,0 kg
SUMMER CUP BJJ GI 2024 ES · Gi · grey · ≤35 kg 0–1 W–L: Win / Loss Gi
  • Kids Boys GI / Grey / Infantil B / -35,0 kg
MADRID CUP BJJ 2023 ES · Gi · grey · ≤32.3 kg 2–0 W–L: Win / Loss Gi
  • Kids Boys GI / Grey / Infantil A / -32,3 kg
EUROPE BJJ CUP KIDS 2023 ES · Gi · grey · ≤32.3 kg 0–1 W–L: Win / Loss Gi
  • Place #5
OPEN COSTA DAURADA BJJ 2023 ES · Gi · grey · ≤32.3 kg 2–0 W–L: Win / Loss Gi
  • Boys Gi / Grey / Infantil A / -32,3 kg
SUMMER CUP BJJ Gi 2023 ES · Gi · grey · ≤34 kg 1–1 W–L: Win / Loss Gi
  • Boys Gi / Grey / Kids 3 / -34kg
Grappling Industries MADRID ES · Gi · 8–9 yo · grey · ≤85 lb ; No-Gi · 8–9 yo · grey · ≤85 lb 4–0 W–L: Win / Loss GiNo-Gi
  • No Gi Kids / Intermediate (Grey) / 8 - 9 years / -85 lbs
  • Gi Kids / Grey / 8 - 9 years / -85 lbs
COPA KIMURA ES · Gi · white · ≤36 kg 2–0 W–L: Win / Loss Gi
  • Boys Gi / White / Alevín / -36 kg
Campeonato de España 2023 (Gi, NoGi & Kids) ES · Gi · grey · ≤30 kg 2–0 W–L: Win / Loss Gi
  • Niños Gi / Grey / Alevín / -30 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 -3 Rating 1,430

Rating-period composition

Rating matches
5 0
Record
5–0 Previous month 5–0
Opponents
4 0
Events
3 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 · 2 left period Change -35 Rating 1,433

Rating-period composition

Rating matches
5 -2
Record
5–0 Previous month 7–0
Opponents
4 -2
Events
3 -1

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.

June 2026 1 new match · 5 left period Change -41 Rating 1,468

Rating-period composition

Rating matches
7 -4
Record
7–0 Previous month 10–1
Opponents
6 -3
Events
4 0

5 older matches left the 12-month period: 4 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 / Grey / Infanto Juvenil A / -46,0 kg
Method Points 04:00 8–0
Marginal influence +7
May 2026 4 new matches · 3 left period Change +29 Rating 1,509

Rating-period composition

Rating matches
11 +1
Record
10–1 Previous month 9–1
Opponents
9 +2
Events
4 +1

3 older matches left the 12-month period: 3 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
May 16, 2026 Alex Catalin
ADCC SPAIN ALBACETE 2026 Boys 11-12 years / Intermediate / -50 kg
Method Submission 02:17 0–0
Marginal influence +5
Win
KIMURA CUP ALICANTE 2026 Boys Gi / Grey / Junior / -45 kg
Method Points 03:00 4–3
Marginal influence +21
Win
KIMURA CUP ALICANTE 2026 Boys Gi / Grey / Junior / -45 kg
Method Submission 02:43 6–1
Marginal influence +15
Win
KIMURA CUP ALICANTE 2026 Boys Gi / Grey / Junior / -45 kg
Method Points 03:00 4–2
Marginal influence +29
April 2026 No new matches Change +1 Rating 1,480

Rating-period composition

Rating matches
10 0
Record
9–1 Previous month 9–1
Opponents
7 0
Events
3 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 -1 Rating 1,479

Rating-period composition

Rating matches
10 0
Record
9–1 Previous month 9–1
Opponents
7 0
Events
3 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 -4 Rating 1,480

Rating-period composition

Rating matches
10 0
Record
9–1 Previous month 9–1
Opponents
7 0
Events
3 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 1,484

Rating-period composition

Rating matches
10 0
Record
9–1 Previous month 9–1
Opponents
7 0
Events
3 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 1,484

Rating-period composition

Rating matches
10 0
Record
9–1 Previous month 9–1
Opponents
7 0
Events
3 0

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

November 2025 No new matches · 2 left period Change -8 Rating 1,484

Rating-period composition

Rating matches
10 -2
Record
9–1 Previous month 10–2
Opponents
7 -2
Events
3 -1

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

October 2025 No new matches Change +3 Rating 1,492

Rating-period composition

Rating matches
12 0
Record
10–2 Previous month 10–2
Opponents
9 0
Events
4 0

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

September 2025 No new matches Change -1 Rating 1,489

Rating-period composition

Rating matches
12 0
Record
10–2 Previous month 10–2
Opponents
9 0
Events
4 0

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

Relevant matches
4.3
Official ranking percentile
Top 20%
Performance
-

4.3 weighted matches against 4 different opponents across 3 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,330
Repeated-opponent share
20.0%
Network connectivity
80.9%

Classification evidence

Why U14?

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

  • U14 3 event votes Selected outcome

Registrations and outcomes

WORLD CUP BJJ 2026
U14 · Counts
Kids Boys NO-GI / Grey / Infanto Juvenil A / -46,0 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
Kids Boys GI / Grey / Infanto Juvenil A / -46,0 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
SOUTHEAST TORREVIEJA
Does not count
NIÑOS NOGI / JUNIOR / Grey / -46kg
NIÑOS GI / JUNIOR / Grey / -46kg
ADCC SPAIN ALBACETE 2026
U14 · Counts
Boys 11-12 years / Intermediate / -50 kg
  • Competition age 12
KIMURA CUP ALICANTE 2026
U14 · Counts
Boys Gi / Grey / Junior / -45 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
SOUTHEAST SUBMISSION SERIES
Does not count
NIÑOS GI / JUNIOR / Grey / -41kg

Classification evidence

Why ≤ 45 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

  • ≤ 45 kg 1 competition event Selected outcome
  • ≤ 46 kg 1 competition event
  • ≤ 50 kg 1 competition event

Registrations and outcomes

WORLD CUP BJJ 2026
≤ 46 kg · Counts as a competition event
Kids Boys NO-GI / Grey / Infanto Juvenil A / -46,0 kg
  • Registered weight class: -46,0 kg
  • Source competition limit: -46,0 kg

1 match in the rating period

WORLD CUP BJJ 2026
Does not count
Kids Boys GI / Grey / Infanto Juvenil A / -46,0 kg
  • Registered weight class: -46,0 kg
  • Source competition limit: -46,0 kg

No matches in the rating period · no valid weight evidence

SOUTHEAST TORREVIEJA
Does not count
NIÑOS NOGI / JUNIOR / Grey / -46kg
  • Registered weight class: -46kg
  • Source competition limit: -46kg

No matches in the rating period · no valid weight evidence

SOUTHEAST TORREVIEJA
Does not count
NIÑOS GI / JUNIOR / Grey / -46kg
  • Registered weight class: -46kg
  • Source competition limit: -46kg

No matches in the rating period · no valid weight evidence

ADCC SPAIN ALBACETE 2026
≤ 50 kg · Counts as a competition event
Boys 11-12 years / Intermediate / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

1 match in the rating period

KIMURA CUP ALICANTE 2026
≤ 45 kg · Counts as a competition event
Boys Gi / Grey / Junior / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

3 matches in the rating period

SOUTHEAST SUBMISSION SERIES
Does not count
NIÑOS GI / JUNIOR / Grey / -41kg
  • Registered weight class: -41kg
  • Source competition limit: -41kg

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 4 matches in the rating period Selected outcome

Registrations and outcomes

WORLD CUP BJJ 2026
grey · Counts as a match
Kids Boys NO-GI / Grey / Infanto Juvenil A / -46,0 kg
  • Source belt category: grey

1 match in the rating period

KIMURA CUP ALICANTE 2026
grey · Counts as a match
Boys Gi / Grey / Junior / -45 kg
  • Source belt category: grey

3 matches in the rating period