TournamentNAGA North American Grappling Championship - Nov 2025
[ grey / juvenile ]NJ

Kolbert Zheng

Jits
3,242Prodigy
~1,858 Jits to S-Tier
+120Last event: Nov 22, 2025
#4,353
Overall
Top 5%
Percentile
#2,125
grey Belt
Record
14-478% Win Rate
14 Wins4 Losses
W
L
W
W
W
4-1 Last 5

Trophy Case

5 GoldNAGA 3 · Grappling Industries 2

Fighter Intelligence

4 Tournaments
Medals
7Medals
across 4 tournaments
Gold 5
Silver 1
Bronze 1
71% Gold Rate
Belt Avg 44%
What this means71% of tournament entries result in gold27 points above the belt average. Elite podium consistency — this fighter dominates their brackets.
Finishing Ability
86%
Subs
Submission 12
Points 2
Other 0
Belt Avg 57%
+29 pts vs belt avg
What this means86% of wins by submission29 points above the belt average. This fighter has elite finishing ability for their rank.

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Advanced Analytics

AI Calculated

Growth Trajectory

DVI
Dominant
Dominant — winning at an elite level
Growing faster than 83% of peers

Win Quality

Giant Killer
Clutch Score: +18.8%
14
Close Wins
4
Losses
18 matches analyzed

Format Split

GI SPECIALIST
8 Gi10 NoGi
Gi
7W-1L88%
NoGi
7W-3L70%
Sub Rate
Gi 88%NoGi 50%
18% win rate delta — Gi stronger

Segment Analysis

Malegrey BeltAges 14-1529,089 Fighters
Comparing to 29,089 grey belt fighters
Win Rate
78%avg 56%
AVG
+22 pts vs avg
Sub Rate
86%avg 57%
AVG
+28 pts vs avg
Gold Rate
100%avg 44%
AVG
+56 pts vs avg
What This Means

Ranked #2125 of 29,089 grey belts. 78% win rate across 18 matches.

Tale of the Tape

Fighter History

18 matches
ResultMethodFighterJITSAcademyBracketVideoTournamentFormatDate
WSUB
1736+360
Renzo Gracie Denville
White
Intermediate · 14-15 · 130-145
NoGiNov 22, 2025
LPTS
2151-670
Bteam NJ
White
Intermediate · 14-15 · 130-145
NoGiNov 22, 2025
WSUB
2419+210
White Tiger Martial Arts
Grey
Intermediate · 14-15 · 115-130
GiNov 22, 2025
WSUB
1232+220
10th Planet Fairfield
Grey
Intermediate · 14-15 · 115-130
GiNov 22, 2025
WSUB
2788+280
Ama Fight Club
White
Beginner · 14-15 · 100-115
NoGiApr 27, 2025
WPTS
1412+160
East Coast MMA & Fitness
White
Beginner · 14-15 · 100-115
NoGiApr 27, 2025
WSUB
1015+250
Harbor Jiu Jitsu
White
Beginner · 14-15 · 100-115
NoGiApr 27, 2025
LDEC
2972-220
Tiger Kang MMA
White
Beginner · 14-15 · 100-115
GiApr 27, 2025
WSUB
1412+260
East Coast MMA & Fitness
White
Beginner · 14-15 · 100-115
GiApr 27, 2025
LPTS
1398-360
Ifteam - Império Fight Team
White
Beginner · 12-13 · 110-125
NoGiFeb 8, 2025

From Tiger Kang MMA

See all →
Scouting Report
Data Sources
Matches18
Placements7
Tournaments4
Medals🥇 5🥈 1🥉 1
Sources
NAGAGRAP
First MatchJan 2025
Last MatchNov 2025

Stats verified from completed tournaments only, may not represent a fighter's true record.

FloGrappling Videos

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About

Kolbert Zheng is a grey belt competitor from Tiger Kang MMA in NJ with a 14-4 competition record and 5 gold, 1 silver, 1 bronze medals. Known for an impressive 86% submission rate across 18 matches. Competing since 2025.

Frequently Asked Questions

Kolbert Zheng has a 14-4 competition record across 18 matches in 4 tournaments.
Kolbert Zheng is ranked #4353 overall and #2125 among grey belt competitors on Jits.gg.
Kolbert Zheng has earned 5 gold, 1 silver, 1 bronze medals across 4 tournaments.
Kolbert Zheng trains at Tiger Kang MMA and competes as a grey belt.
Kolbert Zheng has a 86% submission rate and a 78% win rate across 18 matches.
Kolbert Zheng is ranked #2125 among grey belt competitors on Jits.gg.
Kolbert Zheng's current Jits rating is 3242. Use the Rating Simulator on Kolbert Zheng'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.