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Jan Oliver

Revolution bjj/Cícero Costha internacional

W–L
3–5
Won and lost rating-eligible matches in the past 12 months.
Gi
1,198
Rating based on Gi matches in the past 12 months.
No-Gi
1,217
Rating based on No-Gi matches in the past 12 months.
Current form
3–5
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
0
Silver
2
Bronze
2
Total medals
4
Events with results
3

Full career record

Wins
3
Losses
5
Matches
8
Win rate
37.5%

Ways of winning

Submission
2
Points
1
Decision
0
Disqualification
0

Personal records

Longest winning streak
1
Longest submission streak
1

Recent recorded placements

  2. KIMURA CUP SALOU

    ES Event record 1–2

    • Juvenile Boys No-Gi / White / Youth / -66 kg
    • Place 5

  3. GIRONA BJJ CUP GI & NO-GI 2026

    ES Event record 1–2

    • Juvenile Boys GI / White / Juvenile / -62,0 kg (Feather)
    • Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
7
Distinct events
3

Ways of winning

  • Submission 2 67%
  • Points 1 33%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1198
Record
1–2
Win rate
33%
Submission share
0%

No-Gi

Rating
1217
Record
2–3
Win rate
40%
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
1,283
Change over 90 days
+13
Highest rating in 12 months
1,283
Performance versus expectation
-10.3 pp
Schedule strength
Top 64%
Average opponent rating
1,299
Weighted win rate
38%
Expected win rate
49%
Repeat-opponent share
13%
Effective evidence
7
Confidence
83/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 0–2 0–2 across 2 rematches against 1 repeat opponents.

Rivals

Opponent Head-to-head record Matches
Marc Fernandez 0–2 2

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 2 new matches Change +19 Rating 1,283

Rating-period composition

Rating matches
8 +2
Record
3–5 Previous month 2–4
Opponents
7 +2
Events
3 +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
August 1, 2026 Oliu Agüera Casas
BARCELONA CUP BJJ GI & NO-GI 2026 Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
Method Submission 01:49 0–0
Marginal influence -12
Win
August 1, 2026 Lucas Francia
BARCELONA CUP BJJ GI & NO-GI 2026 Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
Method Submission 00:48 0–0
Marginal influence +22
July 2026 No new matches Change -1 Rating 1,264

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
5 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 +1 Rating 1,265

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
5 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 No new matches Change -6 Rating 1,264

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
5 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.

April 2026 No new matches Change 0 Rating 1,270

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
5 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.

March 2026 6 new matches Change Starting point Rating 1,270

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 SALOU Juvenile Boys No-Gi / White / Youth / -66 kg
Method Points 04:00 6–8
Marginal influence -21
Win
March 14, 2026 Ian Prieto Palacios
KIMURA CUP SALOU Juvenile Boys No-Gi / White / Youth / -66 kg
Method Submission 01:03 0–0
Marginal influence +15
Loss
KIMURA CUP SALOU Juvenile Boys Gi / White / Youth / -66 kg
Method Points 04:00 2–4
Marginal influence -15
Loss
March 8, 2026 Marc Fernandez
GIRONA BJJ CUP GI & NO-GI 2026 Juvenile Boys GI / White / Juvenile / -62,0 kg (Feather)
Method Points 04:00 0–5
Marginal influence -10
Win
March 8, 2026 Angel Avila
GIRONA BJJ CUP GI & NO-GI 2026 Juvenile Boys GI / White / Juvenile / -62,0 kg (Feather)
Method Points 04:00 4–0
Marginal influence +21
Loss
March 8, 2026 Marc Fernandez
GIRONA BJJ CUP GI & NO-GI 2026 Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
Method Points 04:00 0–0
Marginal influence -17
Relevant matches
7
Official ranking percentile
-
Performance
10.3 pp below expectation

7 weighted matches against 7 different opponents across 3 events

Weighted win rate
38.4%
Expected win rate
48.8%
Average opponent rating
1,299
Repeated-opponent share
12.5%
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 5 event votes Selected outcome

Registrations and outcomes

BARCELONA CUP BJJ GI & NO-GI 2026
U18 · Counts
Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
  • Competition age 17
  • Registered age: u18
  • Source category: u18
TORREDEMBARRA CHALLENGE 2026
U18 · Counts
Juvenile Boys Nogi / White / Youth 16 y 17 años / -60kg (Light) (Light weight)
  • Competition age 17
  • Registered age: u18
  • Source category: u18
VINYOLS CHALLENGE SPRING 2026
U18 · Counts
JUVENILE MALE NOGI / White / Youth 16 y 17 años / -66 kg Welter weight
  • Competition age 17
  • Registered age: u18
  • Source category: u18
KIMURA CUP SALOU
U18 · Counts
Juvenile Boys Gi / White / Youth / -66 kg
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Juvenile Boys No-Gi / White / Youth / -66 kg
  • Competition age 17
  • Registered age: u18
  • Source category: u18
GIRONA BJJ CUP GI & NO-GI 2026
U18 · Counts
Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
  • Competition age 17
  • Registered age: u18
  • Source category: u18
Juvenile Boys GI / White / Juvenile / -62,0 kg (Feather)
  • Competition age 17
  • Registered age: u18
  • Source category: u18

Classification evidence

Why ≤ 62 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

  • ≤ 62 kg 2 competition events Selected outcome
  • ≤ 66 kg 1 competition event

Registrations and outcomes

BARCELONA CUP BJJ GI & NO-GI 2026
≤ 62 kg · Counts as a competition event
Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
  • Registered weight class: -62,0 kg (Feather)
  • Source competition limit: -62,0 kg (Feather)

2 matches in the rating period

TORREDEMBARRA CHALLENGE 2026
Does not count
Juvenile Boys Nogi / White / Youth 16 y 17 años / -60kg (Light) (Light weight)
  • Registered weight class: -60kg (Light) (Light weight)
  • Source competition limit: -60kg (Light) (Light weight)

No matches in the rating period · no valid weight evidence

VINYOLS CHALLENGE SPRING 2026
Does not count
JUVENILE MALE NOGI / White / Youth 16 y 17 años / -66 kg Welter weight
  • Registered weight class: -66 kg Welter weight
  • Source competition limit: -66 kg Welter weight

No matches in the rating period · no valid weight evidence

KIMURA CUP SALOU
≤ 66 kg · Counts as a competition event
Juvenile Boys Gi / White / Youth / -66 kg
  • Registered weight class: -66 kg
  • Source competition limit: -66 kg

1 match in the rating period

KIMURA CUP SALOU
≤ 66 kg · Counts as a competition event
Juvenile Boys No-Gi / White / Youth / -66 kg
  • Registered weight class: -66 kg
  • Source competition limit: -66 kg

2 matches in the rating period

GIRONA BJJ CUP GI & NO-GI 2026
≤ 62 kg · Counts as a competition event
Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
  • Registered weight class: -62,0 kg (Feather)
  • Source competition limit: -62,0 kg (Feather)

1 match in the rating period

GIRONA BJJ CUP GI & NO-GI 2026
≤ 62 kg · Counts as a competition event
Juvenile Boys GI / White / Juvenile / -62,0 kg (Feather)
  • Registered weight class: -62,0 kg (Feather)
  • Source competition limit: -62,0 kg (Feather)

2 matches in the rating period

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 8 matches in the rating period Selected outcome

Registrations and outcomes

BARCELONA CUP BJJ GI & NO-GI 2026
white · Counts as a match
Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
  • Source belt category: white

2 matches in the rating period

KIMURA CUP SALOU
white · Counts as a match
Juvenile Boys No-Gi / White / Youth / -66 kg
  • Source belt category: white

2 matches in the rating period

KIMURA CUP SALOU
white · Counts as a match
Juvenile Boys Gi / White / Youth / -66 kg
  • Source belt category: white

1 match in the rating period

GIRONA BJJ CUP GI & NO-GI 2026
white · Counts as a match
Juvenile Boys GI / White / Juvenile / -62,0 kg (Feather)
  • Source belt category: white

2 matches in the rating period

GIRONA BJJ CUP GI & NO-GI 2026
white · Counts as a match
Juvenile Boys NO-GI / White / Juvenile / -62,0 kg (Feather)
  • Source belt category: white

1 match in the rating period