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Nikolai Gaiduchenko

LEO GALATI JIUJITSU & MMA MARBELLA

W–L
13–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,419
Rating based on Gi matches in the past 12 months.
No-Gi
1,434
Rating based on No-Gi matches in the past 12 months.
Current form
8–2
Results from the ten most recent rating-eligible matches.
Opponents
11
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
12
Silver
10
Bronze
10
Total medals
32
Events with results
21

Full career record

Wins
27
Losses
26
Matches
53
Win rate
50.9%

Ways of winning

Submission
17
Points
7
Decision
0
Disqualification
2

Personal records

Longest winning streak
10
Longest submission streak
5
Longest gold streak
2
Largest recorded points win
21–0

Recent recorded placements

  2. WORLD CUP BJJ 2026

    ES Event record 2–1

    • Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
    • Kids Boys NO-GI / Grey / Infanto Juvenil A / -50,0 Kg

  4. MÁLAGA INTERNATIONAL CUP

    ES Event record 4–0

    • Boys Gi / Grey / Junior III (12yrs) / -44,50 kg
    • Boys NOGI / Grey / Junior III (12yrs) / -45.40 kg

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
2
Unique opponents
11
Distinct events
6

Ways of winning

  • Submission 11 85%
  • Points 1 8%
  • Decision 0 0%
  • Other recorded result 1 8%

Gi versus No-Gi

Gi

Rating
1419
Record
7–2
Win rate
78%
Submission share
71%

No-Gi

Rating
1434
Record
6–2
Win rate
75%
Submission share
100%

Win quality

Grouped by pre-match win probability. This provides context and does not award an extra rating bonus.

As underdog 0–0 Less than 35% expected win probability before the match.
Even match 0–0 Between 35% and 65% expected win probability before the match.
As favourite 0–0 More than 65% expected win probability before the match.

Development

Rating and development

The same published rating, supported by trend, opponent strength and evidence quality.

Current rating
1,492
Change over 90 days
+98
Highest rating in 12 months
1,488
Performance versus expectation
+18.1 pp
Schedule strength
Top 52%
Average opponent rating
1,315
Weighted win rate
80%
Expected win rate
62%
Repeat-opponent share
35%
Effective evidence
13.8
Confidence
93/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 16–15 16–15 across 31 rematches against 11 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #304 Pietro Sousa · MÁLAGA INTERNATIONAL CUP Sub 6–0
  2. #788 Andres Tapia Frechina · WORLD CUP BJJ 2026 Sub 01:08 2–2
  3. #1355 Francisco Rodriguez Huelva · ANDALUCIA BJJ CUP GI & NO-GI 2026 Sub 03:56 2–0
  4. #1492 Aleksandar Jankovic · Kimura Cup Málaga 2026 Sub 01:47 13–0 Earlier · Sub 01:48 6–0 July 4, 2026 · Kimura Cup Málaga 2026
  5. #1634 Gonzalo Machado Correa · ANDALUCIA BJJ CUP GI & NO-GI 2026 Sub 01:49 2–0

Full career

  1. #304 Pietro Sousa · MÁLAGA INTERNATIONAL CUP Sub 6–0
  2. #788 Andres Tapia Frechina · WORLD CUP BJJ 2026 Sub 01:08 2–2
  3. #1355 Francisco Rodriguez Huelva · ANDALUCIA BJJ CUP GI & NO-GI 2026 Sub 03:56 2–0 Earlier · Pts 11–0 June 28, 2025 · WORLD CUP BJJ 2025
  4. #1492 Aleksandar Jankovic · Kimura Cup Málaga 2026 Sub 01:47 13–0 Earlier · Sub 01:48 6–0 July 4, 2026 · Kimura Cup Málaga 2026
  5. #1634 Gonzalo Machado Correa · ANDALUCIA BJJ CUP GI & NO-GI 2026 Sub 01:49 2–0

Rivals

Opponent Head-to-head record Matches

Around this athlete

Athlete Rank Rating
Erik Martin #276 1,492
Nikolai Gaiduchenko #277 1,492

Recent tournaments

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 +4 Rating 1,492

Rating-period composition

Rating matches
17 0
Record
13–4 Previous month 13–4
Opponents
11 0
Events
6 0

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

July 2026 4 new matches Change +35 Rating 1,488

Rating-period composition

Rating matches
17 +4
Record
13–4 Previous month 10–3
Opponents
11 +1
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
Kimura Cup Málaga 2026 Boys Gi / Grey / Junior / -50 kg
Method Submission 01:47 13–0
Marginal influence +8
Win
July 4, 2026 Oliver Lucas
Kimura Cup Málaga 2026 Boys Gi / Grey / Junior / -50 kg
Method Submission 01:40 4–0
Marginal influence +6
Loss
July 4, 2026 Pietro Sousa
Kimura Cup Málaga 2026 Boys No-Gi / Grey / Junior / -50 kg
Method Submission 01:30 0–7
Marginal influence -8
Win
Kimura Cup Málaga 2026 Boys No-Gi / Grey / Junior / -50 kg
Method Submission 01:48 6–0
Marginal influence +7
June 2026 3 new matches · 6 left period Change +40 Rating 1,453

Rating-period composition

Rating matches
13 -3
Record
10–3 Previous month 10–6
Opponents
10 0
Events
5 -1

6 older matches left the 12-month period: 2 won and 4 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
WORLD CUP BJJ 2026 Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
Method Points 04:00 2–9
Marginal influence -18
Win
June 27, 2026 Lucas Ghigoarta
WORLD CUP BJJ 2026 Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
Method Submission 03:37 11–2
Marginal influence +9
Win
WORLD CUP BJJ 2026 Kids Boys NO-GI / Grey / Infanto Juvenil A / -50,0 Kg
Method Submission 01:08 2–2
Marginal influence +14
May 2026 3 new matches Change +38 Rating 1,413

Rating-period composition

Rating matches
16 +3
Record
10–6 Previous month 7–6
Opponents
10 +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
ANDALUCIA BJJ CUP GI & NO-GI 2026 Kids Boys NO-GI / Grey / Infanto Juvenil B / -51,0 Kg
Method Submission 03:56 2–0
Marginal influence +10
Win
ANDALUCIA BJJ CUP GI & NO-GI 2026 Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
Method Submission 02:41 12–0
Marginal influence +8
Win
ANDALUCIA BJJ CUP GI & NO-GI 2026 Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
Method Submission 01:49 2–0
Marginal influence +10
April 2026 No new matches Change -3 Rating 1,375

Rating-period composition

Rating matches
13 0
Record
7–6 Previous month 7–6
Opponents
8 0
Events
5 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 · 2 left period Change +13 Rating 1,378

Rating-period composition

Rating matches
13 -2
Record
7–6 Previous month 7–8
Opponents
8 -1
Events
5 -1

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

February 2026 No new matches · 4 left period Change -25 Rating 1,365

Rating-period composition

Rating matches
15 -4
Record
7–8 Previous month 10–9
Opponents
9 -3
Events
6 -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.

January 2026 No new matches Change +1 Rating 1,390

Rating-period composition

Rating matches
19 0
Record
10–9 Previous month 10–9
Opponents
12 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 No new matches · 5 left period Change -1 Rating 1,389

Rating-period composition

Rating matches
19 -5
Record
10–9 Previous month 12–12
Opponents
12 -3
Events
7 -1

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

November 2025 3 new matches · 2 left period Change +39 Rating 1,390

Rating-period composition

Rating matches
24 +1
Record
12–12 Previous month 10–13
Opponents
15 0
Events
8 0

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.

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 30, 2025 Pietro Sousa
MÁLAGA INTERNATIONAL CUP Boys NOGI / Grey / Junior III (12yrs) / -45.40 kg
Method Submission 6–0
Marginal influence +10
Win
November 30, 2025 Артур Slieptsov
MÁLAGA INTERNATIONAL CUP Boys NOGI / Grey / Junior III (12yrs) / -45.40 kg
Method Submission 02:16 7–2
Marginal influence +7
Win
November 30, 2025 Артур Slieptsov
MÁLAGA INTERNATIONAL CUP Boys Gi / Grey / Junior III (12yrs) / -44,50 kg
Method Points 03:00 9–0
Marginal influence +9
October 2025 4 new matches Change +19 Rating 1,351

Rating-period composition

Rating matches
23 +4
Record
10–13 Previous month 8–11
Opponents
15 +4
Events
8 +2

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
EUROPE CUP BJJ 2025 - ETAPA FINAL Kids Boys NO-GI / Grey / Infanto Juvenil A / -42,0 kg
Method Submission 01:35 2–0
Marginal influence +10
Loss
October 18, 2025 Nikita Mukhomor
EUROPE CUP BJJ 2025 - ETAPA FINAL Kids Boys GI / Grey / Infanto Juvenil A / -42,0 kg
Method Points 04:00 0–3
Marginal influence -20
Win
October 4, 2025 Mateo Baños Bustillo
KIMURA CUP SEVILLA 2025 Boys Gi / Grey / Junior / -41 kg
Method Disqualification 0–0
Marginal influence +8
Loss
October 4, 2025 Pietro Sousa
KIMURA CUP SEVILLA 2025 Boys No-Gi / Grey / Junior / -45 kg
Method Points 03:00 0–5
Marginal influence -8
September 2025 No new matches · 1 left period Change +6 Rating 1,332

Rating-period composition

Rating matches
19 -1
Record
8–11 Previous month 8–12
Opponents
11 0
Events
6 -1

1 older matches left the 12-month period: 0 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

Relevant matches
13.8
Official ranking percentile
Top 10%
Performance
18.1 pp above expectation

13.8 weighted matches against 11 different opponents across 6 events

Weighted win rate
80.1%
Expected win rate
62.0%
Average opponent rating
1,315
Repeated-opponent share
35.3%
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 6 event votes Selected outcome

Registrations and outcomes

Kimura Cup Málaga 2026
U14 · Counts
Boys No-Gi / Grey / Junior / -50 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Boys Gi / Grey / Junior / -50 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
WORLD CUP BJJ 2026
U14 · Counts
Kids Boys NO-GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
KIMURA CUP ALICANTE 2026
U14 · Counts
Boys Gi / Grey-White / Junior / -50 kg
  • Competition age 13
  • Registered age: u16
  • Source category: u16
ANDALUCIA BJJ CUP GI & NO-GI 2026
U14 · Counts
Kids Boys NO-GI / Grey / Infanto Juvenil B / -51,0 Kg
  • Competition age 13
  • Registered age: u16
  • Source category: u16
Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
CAMPEONATO DE ESPAÑA 2026
U14 · Counts
Boys NOGI / Grey / Teen I (13yrs) / -48,40 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Boys Gi / Grey / Teen I (13yrs) / -48,40 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
KIMURA CUP MADRID 2026
U14 · Counts
Boys No-Gi / Grey / Junior / -50 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Boys Gi / Grey / Junior / -50 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
MÁLAGA INTERNATIONAL CUP
Does not count
Boys NOGI / Grey / Junior III (12yrs) / -45.40 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
Boys Gi / Grey / Junior III (12yrs) / -44,50 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
EUROPE CUP BJJ 2025 - ETAPA FINAL
Does not count
Kids Boys NO-GI / Grey / Infanto Juvenil A / -42,0 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
Kids Boys GI / Grey / Infanto Juvenil A / -42,0 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
KIMURA CUP SEVILLA 2025
Does not count
Boys No-Gi / Grey / Junior / -45 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
Boys Gi / Grey / Junior / -41 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 50 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

  • ≤ 50 kg 3 competition events Selected outcome

Registrations and outcomes

Kimura Cup Málaga 2026
≤ 50 kg · Counts as a competition event
Boys No-Gi / Grey / Junior / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

2 matches in the rating period

Kimura Cup Málaga 2026
≤ 50 kg · Counts as a competition event
Boys Gi / Grey / Junior / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

2 matches in the rating period

WORLD CUP BJJ 2026
≤ 50 kg · Counts as a competition event
Kids Boys NO-GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Registered weight class: -50,0 Kg
  • Source competition limit: -50,0 Kg

1 match in the rating period

WORLD CUP BJJ 2026
≤ 50 kg · Counts as a competition event
Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Registered weight class: -50,0 Kg
  • Source competition limit: -50,0 Kg

2 matches in the rating period

KIMURA CUP ALICANTE 2026
Does not count
Boys Gi / Grey-White / Junior / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

No matches in the rating period · no valid weight evidence

ANDALUCIA BJJ CUP GI & NO-GI 2026
≤ 50 kg · Counts as a competition event
Kids Boys NO-GI / Grey / Infanto Juvenil B / -51,0 Kg
  • Registered weight class: -50,0 Kg
  • Source competition limit: -50,0 Kg

1 match in the rating period

ANDALUCIA BJJ CUP GI & NO-GI 2026
≤ 50 kg · Counts as a competition event
Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Registered weight class: -50,0 Kg
  • Source competition limit: -50,0 Kg

2 matches in the rating period

CAMPEONATO DE ESPAÑA 2026
Does not count
Boys NOGI / Grey / Teen I (13yrs) / -48,40 kg
  • Registered weight class: -48,40 kg
  • Source competition limit: -48,40 kg

No matches in the rating period · no valid weight evidence

CAMPEONATO DE ESPAÑA 2026
Does not count
Boys Gi / Grey / Teen I (13yrs) / -48,40 kg
  • Registered weight class: -48,40 kg
  • Source competition limit: -48,40 kg

No matches in the rating period · no valid weight evidence

KIMURA CUP MADRID 2026
Does not count
Boys No-Gi / Grey / Junior / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

No matches in the rating period · no valid weight evidence

KIMURA CUP MADRID 2026
Does not count
Boys Gi / Grey / Junior / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

No matches in the rating period · no valid weight evidence

MÁLAGA INTERNATIONAL CUP
≤ 45 kg · Does not count
Boys NOGI / Grey / Junior III (12yrs) / -45.40 kg
  • Registered weight class: -44,50 kg
  • Source competition limit: -44,50 kg

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

MÁLAGA INTERNATIONAL CUP
≤ 45 kg · Does not count
Boys Gi / Grey / Junior III (12yrs) / -44,50 kg
  • Registered weight class: -44,50 kg
  • Source competition limit: -44,50 kg

1 match in the rating period · outside the three most recent unambiguous events

EUROPE CUP BJJ 2025 - ETAPA FINAL
≤ 42 kg · Does not count
Kids Boys NO-GI / Grey / Infanto Juvenil A / -42,0 kg
  • Registered weight class: -42,0 kg
  • Source competition limit: -42,0 kg

1 match in the rating period · outside the three most recent unambiguous events

EUROPE CUP BJJ 2025 - ETAPA FINAL
≤ 42 kg · Does not count
Kids Boys GI / Grey / Infanto Juvenil A / -42,0 kg
  • Registered weight class: -42,0 kg
  • Source competition limit: -42,0 kg

1 match in the rating period · outside the three most recent unambiguous events

KIMURA CUP SEVILLA 2025
≤ 45 kg · Does not count
Boys No-Gi / Grey / Junior / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

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

KIMURA CUP SEVILLA 2025
≤ 41 kg · Does not count
Boys Gi / Grey / Junior / -41 kg
  • Registered weight class: -41 kg
  • Source competition limit: -41 kg

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

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 17 matches in the rating period Selected outcome

Registrations and outcomes

Kimura Cup Málaga 2026
grey · Counts as a match
Boys Gi / Grey / Junior / -50 kg
  • Source belt category: grey

2 matches in the rating period

Kimura Cup Málaga 2026
grey · Counts as a match
Boys No-Gi / Grey / Junior / -50 kg
  • Source belt category: grey

2 matches in the rating period

WORLD CUP BJJ 2026
grey · Counts as a match
Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Source belt category: grey

2 matches in the rating period

WORLD CUP BJJ 2026
grey · Counts as a match
Kids Boys NO-GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Source belt category: grey

1 match in the rating period

ANDALUCIA BJJ CUP GI & NO-GI 2026
grey · Counts as a match
Kids Boys NO-GI / Grey / Infanto Juvenil B / -51,0 Kg
  • Source belt category: grey

1 match in the rating period

ANDALUCIA BJJ CUP GI & NO-GI 2026
grey · Counts as a match
Kids Boys GI / Grey / Infanto Juvenil A / -50,0 Kg
  • Source belt category: grey

2 matches in the rating period

MÁLAGA INTERNATIONAL CUP
grey · Counts as a match
Boys NOGI / Grey / Junior III (12yrs) / -45.40 kg
  • Source belt category: grey

2 matches in the rating period

MÁLAGA INTERNATIONAL CUP
grey · Counts as a match
Boys Gi / Grey / Junior III (12yrs) / -44,50 kg
  • Source belt category: grey

1 match in the rating period

EUROPE CUP BJJ 2025 - ETAPA FINAL
grey · Counts as a match
Kids Boys NO-GI / Grey / Infanto Juvenil A / -42,0 kg
  • Source belt category: grey

1 match in the rating period

EUROPE CUP BJJ 2025 - ETAPA FINAL
grey · Counts as a match
Kids Boys GI / Grey / Infanto Juvenil A / -42,0 kg
  • Source belt category: grey

1 match in the rating period

KIMURA CUP SEVILLA 2025
grey · Counts as a match
Boys Gi / Grey / Junior / -41 kg
  • Source belt category: grey

1 match in the rating period

KIMURA CUP SEVILLA 2025
grey · Counts as a match
Boys No-Gi / Grey / Junior / -45 kg
  • Source belt category: grey

1 match in the rating period