TournamentGrand Finale 2025 North American - Dec 2025
[ grey / youth ]CA
Jack Kou
Jits
1,234Prospect
~166 Jits to Advanced
-320Last event: Dec 7, 2025
#48,812
Overall
Top 54%
Percentile
#16,040
grey Belt
Record
2-529% Win Rate
2 Wins5 Losses
L
W
L
L
W
2-3 Last 5
Fighter Intelligence
3 TournamentsMedals
2Medals
across 3 tournaments
Gold 0
Silver 1
Bronze 1
0% Gold Rate
Belt Avg 28%
Finishing Ability
0%
Subs
Submission 0
Points 2
Other 0
Belt Avg 43%
-43 pts vs belt avg
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Advanced Analytics
AI CalculatedGrowth Trajectory
DVIRebuilding Phase
Working through a challenging stretch
Growing faster than 30% of peers
Win Quality
Growing
Clutch Score: -9.2%
2
Close Wins
5
Losses
Best win: Beat Hunter Chang (576 pts higher)
7 matches analyzed
Format Split
GI SPECIALIST7 Gi0 NoGi
Gi
2W-5L29%
NoGi
0W-0L—%
29% win rate delta — Gi stronger
Segment Analysis
malegrey Belt29,089 FightersComparing to 29,089 grey belt fighters
Win Rate
29%avg 44%
AVG
-15 pts vs avg
Sub Rate
0%avg 43%
AVG
-43 pts vs avg
Gold Rate
0%avg 28%
AVG
-28 pts vs avg
What This Means
Win rate tracks at 29% for grey belt. 7 matches and counting.
Tale of the Tape
Fighter History
7 matches
| Result | Method | Fighter | JITS | Academy | Bracket | Video | Tournament | Format | Date |
|---|---|---|---|---|---|---|---|---|---|
| L | SUB | 1387-940 | Tri-city Jiu Jitsu Club | Grey #094 - Kids (gi) · Kid 3 · Grey · Up To 70.00 Lbs (feather) · Up To 70.00 Lbs (feather) (december 7th) | Gi | Dec 7, 2025 | |||
| W | PTS | 1008+670 | Eagle Rock Jiu Jitsu Academy | Grey #094 - Kids (gi) · Kid 3 · Grey · Up To 70.00 Lbs (feather) · Up To 70.00 Lbs (feather) (december 7th) | Gi | Dec 7, 2025 | |||
| L | SUB | 7874-50 | Art of Jiu Jitsu | Grey #094 - Kids (gi) · Kid 3 · Grey · Up To 70.00 Lbs (feather) · Up To 70.00 Lbs (feather) (december 7th) | Gi | Dec 7, 2025 | |||
| L | PTS | 2631-450 | Tillis BJJ | - #71 Kids (gi) · Kid 3 · Grey · Up To 60.00 Lbs (super Feather) - A · Up To 60.00 Lbs (super Feather) - A (la Open - July 26th 2025) | Gi | Jul 26, 2025 | |||
| W | PTS | 1810+1010 | Legion American Jiu Jitsu | - #71 Kids (gi) · Kid 3 · Grey · Up To 60.00 Lbs (super Feather) - A · Up To 60.00 Lbs (super Feather) - A (la Open - July 26th 2025) | Gi | Jul 26, 2025 | |||
| L | SUB | 7683-180 | Randori BJJ | Grey Kids (gi) · Kid 3 · Grey · Up To 60.00 Lbs (super Feather) - Bracket A · Up To 60.00 Lbs (super Feather) - Bracket A (february 1st) | Gi | Jan 28, 2025 | |||
| L | PTS | 2631-480 | Tillis BJJ | Grey Kids (gi) · Kid 3 · Grey · Up To 60.00 Lbs (super Feather) - Bracket A · Up To 60.00 Lbs (super Feather) - Bracket A (february 1st) | Gi | Jan 28, 2025 |
From Caique Jiu Jitsu Walnut
See all →Scouting Report
Data Sources
Matches7
Placements2
Tournaments3
Medals🥈 1🥉 1
Sources
NABJJF
First MatchJan 2025
Last MatchDec 2025
Stats verified from completed tournaments only, may not represent a fighter's true record.
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Similar Fighters
About
Jack Kou is a grey belt competitor from Caique Jiu Jitsu Walnut in CA with a 2-5 competition record. Earned 1 silver, 1 bronze medals across 7 matches. Competing since 2025.
Frequently Asked Questions
Jack Kou has a 2-5 competition record across 7 matches in 3 tournaments.
Jack Kou is ranked #48812 overall and #16040 among grey belt competitors on Jits.gg.
Jack Kou has earned 1 silver, 1 bronze medals across 3 tournaments.
Jack Kou trains at Caique Jiu Jitsu Walnut and competes as a grey belt.
Jack Kou is ranked #16040 among grey belt competitors on Jits.gg.
Jack Kou's current Jits rating is 1234. Use the Rating Simulator on Jack Kou's profile to see how a win or loss against any opponent would affect their rating. Factors include opponent strength, match method (submission vs points), and margin of victory.