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Isaac Drack

NSM TEAM

≤ 30 kg
W–L
4–5
Won and lost rating-eligible matches in the past 12 months.
Gi
1,280
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
5–5
Results from the ten most recent rating-eligible matches.
Opponents
9
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
1
Bronze
2
Total medals
4
Events with results
7

Full career record

Wins
7
Losses
10
Matches
17
Win rate
41.2%

Ways of winning

Submission
2
Points
5
Decision
0
Disqualification
0

Personal records

Longest winning streak
2
Longest submission streak
1
Longest gold streak
1
Largest recorded points win
13–0

Recent recorded placements

  3. Tournoi d'Antony

    FR Event record 1–0

    • Inscription / Grise / Garçons U9 / -27 kg

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
9
Distinct events
3

Ways of winning

  • Submission 2 40%
  • Points 3 60%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1280
Record
4–5
Win rate
44%
Submission share
40%

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
1,280
Change over 90 days
-35
Highest rating in 12 months
1,321
Performance versus expectation
+1.1 pp
Schedule strength
Top 48%
Average opponent rating
1,327
Weighted win rate
47%
Expected win rate
46%
Repeat-opponent share
0%
Effective evidence
6.8
Confidence
80/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #986 Jessim El Boubari · ELITE KIDS BJJ - GRAPPLING 4 Pts 0–0
  2. #1479 Diabira Malik · GNC NEXT GENERATION - bjj and grappling tournament kids ados Sub 01:18 7–0

Full career

  1. #967 Idriss Kassas · ÉLITE KIDS BJJ - GRAPPLING 3 Pts 6–0
  2. #986 Jessim El Boubari · ELITE KIDS BJJ - GRAPPLING 4 Pts 0–0
  3. #1479 Diabira Malik · GNC NEXT GENERATION - bjj and grappling tournament kids ados Sub 01:18 7–0

Around this athlete

Athlete Rank Rating
Jessim El Boubari #986 1,280
Isaac Drack #987 1,280
Leonid Dziubenko #988 1,280

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 0 Rating 1,280

Rating-period composition

Rating matches
9 0
Record
4–5 Previous month 4–5
Opponents
9 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 Change -3 Rating 1,280

Rating-period composition

Rating matches
9 0
Record
4–5 Previous month 4–5
Opponents
9 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.

June 2026 No new matches Change -3 Rating 1,283

Rating-period composition

Rating matches
9 0
Record
4–5 Previous month 4–5
Opponents
9 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.

May 2026 3 new matches Change +24 Rating 1,286

Rating-period composition

Rating matches
9 +3
Record
4–5 Previous month 3–3
Opponents
9 +3
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
May 24, 2026 Zayd Kadri
H2B TOURNAMENT Boys / Girls Gi / Grise-Blanche / U8 / -30 kg
Method Submission 00:45 0–6
Marginal influence -21
Loss
May 24, 2026 Wahil Mehroug
H2B TOURNAMENT Boys / Girls Gi / Grise-Blanche / U8 / -30 kg
Method Submission 01:20 0–9
Marginal influence -12
Win
May 24, 2026 Ali Torki
H2B TOURNAMENT Boys / Girls Gi / Grise-Blanche / U8 / -30 kg
Method Points 03:00 13–0
Marginal influence +27
April 2026 3 new matches Change +14 Rating 1,262

Rating-period composition

Rating matches
6 +3
Record
3–3 Previous month 2–1
Opponents
6 +3
Events
2 +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
April 26, 2026 Diabira Malik
GNC NEXT GENERATION - bjj and grappling tournament kids ados KIDS U7/U9/U11 TOURNOI GI / Masculin / U9 / -30kg / White-Grey belt
Method Submission 01:18 7–0
Marginal influence +17
Loss
April 26, 2026 Ouwayss Bourki
GNC NEXT GENERATION - bjj and grappling tournament kids ados KIDS U7/U9/U11 TOURNOI GI / Masculin / U9 / -30kg / White-Grey belt
Method Submission 03:00 4–4
Marginal influence -24
Loss
April 26, 2026 Nael Sarve
GNC NEXT GENERATION - bjj and grappling tournament kids ados KIDS U7/U9/U11 TOURNOI GI / Masculin / U9 / -30kg / White-Grey belt
Method Submission 00:08 0–0
Marginal influence -6
March 2026 No new matches Change 0 Rating 1,248

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 1,248

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 · 3 left period Change -67 Rating 1,247

Rating-period composition

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

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

December 2025 No new matches Change -7 Rating 1,314

Rating-period composition

Rating matches
6 0
Record
4–2 Previous month 4–2
Opponents
6 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 3 new matches Change +58 Rating 1,321

Rating-period composition

Rating matches
6 +3
Record
4–2 Previous month 2–1
Opponents
6 +3
Events
2 +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
November 22, 2025 Isaac Kaloussi
ELITE KIDS BJJ - GRAPPLING 4 Tournoi GI / U7 / Fille garçons melangés / -30kg / Un seul niveau
Method Points 01:30 0–0
Marginal influence +21
Loss
November 22, 2025 SOULEYMANE KANOUTE
ELITE KIDS BJJ - GRAPPLING 4 Tournoi GI / U7 / Fille garçons melangés / -30kg / Un seul niveau
Method Decision 00:42 0–0
Marginal influence -22
Win
November 22, 2025 Jessim El Boubari
ELITE KIDS BJJ - GRAPPLING 4 Tournoi GI / U7 / Fille garçons melangés / -30kg / Un seul niveau
Method Points 01:30 0–0
Marginal influence +22
October 2025 No new matches Change +1 Rating 1,263

Rating-period composition

Rating matches
3 0
Record
2–1 Previous month 2–1
Opponents
3 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 · 2 left period Change +53 Rating 1,262

Rating-period composition

Rating matches
3 -2
Record
2–1 Previous month 2–3
Opponents
3 -2
Events
1 -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.

Relevant matches
6.8
Official ranking percentile
Top 67%
Performance
1.1 pp above expectation

6.8 weighted matches against 9 different opponents across 3 events

Weighted win rate
47.1%
Expected win rate
46.0%
Average opponent rating
1,327
Repeated-opponent share
0.0%
Network connectivity
87.6%

Classification evidence

Why U10?

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

  • U10 3 event votes Selected outcome

Registrations and outcomes

H2B TOURNAMENT
U10 · Counts
Boys / Girls Gi / Grise-Blanche / U8 / -30 kg
  • Competition age 8
  • Registered age: u8
  • Source category: u8
GNC NEXT GENERATION - bjj and grappling tournament kids ados
U10 · Counts
KIDS U7/U9/U11 TOURNOI GI / Masculin / U9 / -30kg / White-Grey belt
  • Competition age 8
  • Registered age: u10
  • Source category: u10
Tournoi d'Antony
U10 · Counts
Inscription / Grise / Garçons U9 / -27 kg
  • Competition age 8
  • Registered age: u10
  • Source category: u10
ELITE KIDS BJJ - GRAPPLING 4
Does not count
Tournoi GI / U7 / Fille garçons melangés / -30kg / Un seul niveau
  • Competition age 7
  • Registered age: u8
  • Source category: u8

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

GNC NEXT GENERATION - bjj and grappling tournament kids ados
grey · Counts as a match
KIDS U7/U9/U11 TOURNOI GI / Masculin / U9 / -30kg / White-Grey belt
  • Source belt category: grey

3 matches in the rating period