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Jon Durán

Gaman Martial Arts

W–L
2–2
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,263
Rating based on No-Gi matches in the past 12 months.
Current form
2–2
Results from the ten most recent rating-eligible matches.
Opponents
4
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

5
Indexed competition matches
Date Opponent Result Event Division
2026-05-30 Gabriel Ctitor Chitac
Loss
GETXO BJJ CUP GI & NO-GI 2026 No-Gi · Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
2026-05-30 Ekaitz Barandiaran Olmos
Win
GETXO BJJ CUP GI & NO-GI 2026 No-Gi · Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
2026-05-16 David Duque
Loss
ADCC SPAIN ALBACETE 2026 No-Gi · Boys 15-17 years / Beginner / -65 kg
2026-05-16 Mohamed Bourayou
Win
ADCC SPAIN ALBACETE 2026 No-Gi · Boys 15-17 years / Beginner / -65 kg
2025-05-31 Ekain Diez Olalde
Loss
GETXO BJJ CUP GI & NO-GI 2025 No-Gi · Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)

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 0 Rating 1,263

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
4 0
Events
2 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 +3 Rating 1,263

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
4 0
Events
2 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 Change +4 Rating 1,260

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
4 0
Events
2 0

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

May 2026 4 new matches · 1 left period Change +136 Rating 1,256

Rating-period composition

Rating matches
4 +3
Record
2–2 Previous month 0–1
Opponents
4 +3
Events
2 +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.

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
GETXO BJJ CUP GI & NO-GI 2026 Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
Method Points 04:00 0–7
Marginal influence -40
Win
GETXO BJJ CUP GI & NO-GI 2026 Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
Method Points 04:00 5–0
Marginal influence +44
Loss
May 16, 2026 David Duque
ADCC SPAIN ALBACETE 2026 Boys 15-17 years / Beginner / -65 kg
Method Points 04:00 0–2
Marginal influence -31
Win
May 16, 2026 Mohamed Bourayou
ADCC SPAIN ALBACETE 2026 Boys 15-17 years / Beginner / -65 kg
Method Submission 02:08 0–0
Marginal influence +45
April 2026 No new matches Change 0 Rating 1,120

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
Opponents
1 0
Events
1 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 0 Rating 1,120

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
Opponents
1 0
Events
1 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 -1 Rating 1,120

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
Opponents
1 0
Events
1 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 1,121

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
Opponents
1 0
Events
1 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 +1 Rating 1,121

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
Opponents
1 0
Events
1 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 Change -4 Rating 1,120

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
Opponents
1 0
Events
1 0

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

October 2025 No new matches Change 0 Rating 1,124

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
Opponents
1 0
Events
1 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 0 Rating 1,124

Rating-period composition

Rating matches
1 0
Record
0–1 Previous month 0–1
Opponents
1 0
Events
1 0

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

Relevant matches
3.4
Official ranking percentile
-
Performance
-

3.4 weighted matches against 4 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,305
Repeated-opponent share
0.0%
Network connectivity
80.9%

Classification evidence

Why U18?

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

  • U18 3 event votes Selected outcome

Registrations and outcomes

Grappling Industries SAN SEBASTIÁN
U18 · Counts
No Gi Kids / 16 - 17 years (Male) / Beginner (White) / -145 lbs
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Gi Kids / 16 - 17 years (Male) / White / -145 lbs
  • Competition age 17
  • Registered age: u18
  • Source category: u18
GETXO BJJ CUP GI & NO-GI 2026
U18 · Counts
Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
  • Competition age 17
  • Registered age: u18
  • Source category: u18
ADCC SPAIN ALBACETE 2026
U18 · Counts
Boys 15-17 years / Beginner / -65 kg
  • Competition age 17
EUSKADI BJJ CUP GI & NO-GI 2025
Does not count
Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
  • Competition age 16
  • Registered age: u18
  • Source category: u18
SALAMANCA | D-BJJ
Does not count
Juvenile Boys No-Gi / White / Juvenile 1 / -66,5 kg (Light)

Classification evidence

Why ≤ 65 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

  • ≤ 65 kg 1 competition event Selected outcome
  • ≤ 67 kg 1 competition event

Registrations and outcomes

Grappling Industries SAN SEBASTIÁN
Does not count
No Gi Kids / 16 - 17 years (Male) / Beginner (White) / -145 lbs
  • Registered weight class: -145 lbs
  • Source competition limit: -145 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries SAN SEBASTIÁN
Does not count
Gi Kids / 16 - 17 years (Male) / White / -145 lbs
  • Registered weight class: -145 lbs
  • Source competition limit: -145 lbs

No matches in the rating period · no valid weight evidence

GETXO BJJ CUP GI & NO-GI 2026
≤ 67 kg · Counts as a competition event
Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
  • Registered weight class: -67,0 kg (Light)
  • Source competition limit: -67,0 kg (Light)

2 matches in the rating period

ADCC SPAIN ALBACETE 2026
≤ 65 kg · Counts as a competition event
Boys 15-17 years / Beginner / -65 kg
  • Registered weight class: -65 kg
  • Source competition limit: -65 kg

2 matches in the rating period

EUSKADI BJJ CUP GI & NO-GI 2025
Does not count
Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
  • Registered weight class: -67,0 kg (Light)
  • Source competition limit: -67,0 kg (Light)

No matches in the rating period · no valid weight evidence

SALAMANCA | D-BJJ
Does not count
Juvenile Boys No-Gi / White / Juvenile 1 / -66,5 kg (Light)
  • Registered weight class: -66,5 kg (Light)
  • Source competition limit: -66,5 kg (Light)

No matches in the rating period · no valid weight evidence

Classification evidence

Why White?

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

  • white 2 matches in the rating period Selected outcome

Registrations and outcomes

GETXO BJJ CUP GI & NO-GI 2026
white · Counts as a match
Juvenile Boys NO-GI / White / Juvenile / -67,0 kg (Light)
  • Source belt category: white

2 matches in the rating period