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Viktor Douglas

Veras Academy Luxembourg

W–L
4–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,435
Rating based on Gi matches in the past 12 months.
No-Gi
-
Rating based on No-Gi matches in the past 12 months.
Current form
4–1
Results from the ten most recent rating-eligible matches.
Opponents
5
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
3
Silver
1
Bronze
1
Total medals
5
Events with results
6

Full career record

Wins
9
Losses
5
Matches
14
Win rate
64.3%

Ways of winning

Submission
3
Points
4
Decision
0
Disqualification
1

Personal records

Longest winning streak
5
Longest submission streak
1
Longest gold streak
2

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
1
Unique opponents
5
Distinct events
3

Ways of winning

  • Submission 2 50%
  • Points 1 25%
  • Decision 0 0%
  • Other recorded result 1 25%

Gi versus No-Gi

Gi

Rating
1435
Record
4–1
Win rate
80%
Submission share
50%

No-Gi

Rating
-
Record
-
Win rate
-
Submission share
-

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
1,435
Change over 90 days
+133
Highest rating in 12 months
1,431
Performance versus expectation
+31.4 pp
Schedule strength
Top 6%
Average opponent rating
1,422
Weighted win rate
81%
Expected win rate
49%
Repeat-opponent share
0%
Effective evidence
4.4
Confidence
67/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #418 Luka Leriche · NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Sub 01:54 11–2
  2. #795 Ismaïl CHIFFOLEAU · NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Pts 2–2
  3. #1245 Joachim Rouge Tricard · GrappleCity: Luxembourg Spring Open Sub 0–0

Full career

  1. #316 Victor Bonadiman · COLOGNE SUMMER OPEN CHAMPIONSHIP 2025 | EUROPEAN CUP Sub 02:20 5–0
  2. #418 Luka Leriche · NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Sub 01:54 11–2
  3. #786 Zayneb Abla · FLAM Brazilian Jiu Jitsu national Championschip 2024 for KIDS AND TEENS Pts 9–0
  4. #795 Ismaïl CHIFFOLEAU · NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Pts 2–2
  5. #1245 Joachim Rouge Tricard · GrappleCity: Luxembourg Spring Open Sub 0–0

Around this athlete

Athlete Rank Rating
Nyl Covyn #281 1,435
Viktor Douglas #282 1,435
Simao Sa Reis #283 1,434

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 +1 Rating 1,435

Rating-period composition

Rating matches
5 0
Record
4–1 Previous month 4–1
Opponents
5 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 · 1 left period Change -29 Rating 1,434

Rating-period composition

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

1 older matches left the 12-month period: 1 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 No new matches · 3 left period Change +35 Rating 1,463

Rating-period composition

Rating matches
6 -3
Record
5–1 Previous month 6–3
Opponents
6 -3
Events
4 -1

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

May 2026 No new matches Change -3 Rating 1,428

Rating-period composition

Rating matches
9 0
Record
6–3 Previous month 6–3
Opponents
9 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.

April 2026 1 new match Change +23 Rating 1,431

Rating-period composition

Rating matches
9 +1
Record
6–3 Previous month 5–3
Opponents
9 +1
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
GrappleCity: Luxembourg Spring Open Kids Gi / Grey / Kids 10-11 years / -35kg
Method Submission 0–0
Marginal influence +25
March 2026 4 new matches Change +134 Rating 1,408

Rating-period composition

Rating matches
8 +4
Record
5–3 Previous month 2–2
Opponents
8 +4
Events
4 +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.
Loss
Grappling Industries BRUSSELS Gi Kids / 10 - 11 years / Grey / -75 lbs
Method Submission 00:29 2–0
Marginal influence -28
Win
Grappling Industries BRUSSELS Gi Kids / 10 - 11 years / Grey / -75 lbs
Method Disqualification 01:13 2–0
Marginal influence +51
Win
March 8, 2026 Ismaïl CHIFFOLEAU
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children Gi (Male) / Beginner / 30 - 34.9 / 10-11 years
Method Points 03:00 2–2
Marginal influence +25
Win
March 8, 2026 Luka Leriche
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older) Children Gi (Male) / Beginner / 30 - 34.9 / 10-11 years
Method Submission 01:54 11–2
Marginal influence +30
February 2026 No new matches Change -13 Rating 1,274

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.

January 2026 No new matches Change -2 Rating 1,287

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.

December 2025 No new matches Change +5 Rating 1,289

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.

November 2025 No new matches · 4 left period Change -20 Rating 1,284

Rating-period composition

Rating matches
4 -4
Record
2–2 Previous month 4–4
Opponents
4 -4
Events
2 -1

4 older matches left the 12-month period: 2 won and 2 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 +5 Rating 1,304

Rating-period composition

Rating matches
8 0
Record
4–4 Previous month 4–4
Opponents
8 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.

September 2025 No new matches Change +1 Rating 1,299

Rating-period composition

Rating matches
8 0
Record
4–4 Previous month 4–4
Opponents
8 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.

Relevant matches
4.4
Official ranking percentile
Top 19%
Performance
31.4 pp above expectation

4.4 weighted matches against 5 different opponents across 3 events

Weighted win rate
80.7%
Expected win rate
49.3%
Average opponent rating
1,422
Repeated-opponent share
0.0%
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 3 event votes Selected outcome

Registrations and outcomes

GrappleCity: Luxembourg Spring Open
U12 · Counts
Kids Gi / Grey / Kids 10-11 years / -35kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Grappling Industries BRUSSELS
U12 · Counts
Gi Kids / 10 - 11 years / Grey / -75 lbs
  • Competition age 10
  • Registered age: u12
  • Source category: u12
NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
U12 · Counts
2 Adult 13 & Up Spectator tickets
Children Gi (Male) / Beginner / 30 - 34.9 / 10-11 years
  • Competition age 10
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 34 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

  • ≤ 34 kg 1 competition event Selected outcome
  • ≤ 35 kg 2 competition events

Registrations and outcomes

GrappleCity: Luxembourg Spring Open
≤ 35 kg · Counts as a competition event
Kids Gi / Grey / Kids 10-11 years / -35kg
  • Registered weight class: -35kg
  • Source competition limit: -35kg

1 match in the rating period

Grappling Industries BRUSSELS
≤ 34 kg · Counts as a competition event
Gi Kids / 10 - 11 years / Grey / -75 lbs
  • Registered weight class: -75 lbs
  • Source competition limit: -75 lbs

2 matches in the rating period

NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
Does not count
2 Adult 13 & Up Spectator tickets

No matches in the rating period · no valid weight evidence

NAGA Paris Grappling Championship - Children 17 years & under / Adult Men (30 years & older)
≤ 35 kg · Counts as a competition event
Children Gi (Male) / Beginner / 30 - 34.9 / 10-11 years
  • Registered weight class: 30 - 34.9
  • Source competition limit: 30 - 34.9

2 matches in the rating period

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 3 matches in the rating period Selected outcome

Registrations and outcomes

GrappleCity: Luxembourg Spring Open
grey · Counts as a match
Kids Gi / Grey / Kids 10-11 years / -35kg
  • Source belt category: grey

1 match in the rating period

Grappling Industries BRUSSELS
grey · Counts as a match
Gi Kids / 10 - 11 years / Grey / -75 lbs
  • Source belt category: grey

2 matches in the rating period