Jits.GG
TeamTiger Kang MMA
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
2025NAGANAGANAGANORTH AMERICANNORTH AMERICANNORTH AMERICAN

NAGA NORTH AMERICAN GINov 22, 2025

2025NAGANAGANAGAWORLDSWORLDSWORLDS

NAGA WORLDS NO-GIApr 27, 2025

2025NAGANAGANAGAPHILADELPHIA GRAPPLINGPHILADELPHIA GRAPPLINGPHILADELPHIA GRAPPLING

NAGA PHILADELPHIA GRAPPLING GIFeb 8, 2025

2025GRAPPLING INDUSTRIESGRAPPLING INDUSTRIESGRAPPLING INDUSTRIESPHILADELPHIAPHILADELPHIAPHILADELPHIA

GRAPPLING INDUSTRIES PHILADELPHIA GIJan 12, 2025

2025GRAPPLING INDUSTRIESGRAPPLING INDUSTRIESGRAPPLING INDUSTRIESPHILADELPHIAPHILADELPHIAPHILADELPHIA

GRAPPLING INDUSTRIES PHILADELPHIA NO-GIJan 12, 2025

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 gold — 27 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 submission — 29 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
Gabriel Quijada
1736+360
Renzo Gracie Denville
White
Intermediate · 14-15 · 130-145
NAGANorth American
NoGiNov 22, 2025
LPTS
Caleb Richards
2151-670
Bteam NJ
White
Intermediate · 14-15 · 130-145
NAGANorth American
NoGiNov 22, 2025
WSUB
Andrew Massola
2419+210
White Tiger Martial Arts
Grey
Intermediate · 14-15 · 115-130
NAGANorth American
GiNov 22, 2025
WSUB
Ryan Poling
1232+220
10th Planet Fairfield
Grey
Intermediate · 14-15 · 115-130
NAGANorth American
GiNov 22, 2025
WSUB
Connor Stamler
2788+280
Ama Fight Club
White
Beginner · 14-15 · 100-115
NAGAWorlds Teens & Adults
NoGiApr 27, 2025
WPTS
Harry Marachilian
1412+160
East Coast MMA & Fitness
White
Beginner · 14-15 · 100-115
NAGAWorlds Teens & Adults
NoGiApr 27, 2025
WSUB
Nicholas Stokes
1015+250
Harbor Jiu Jitsu
White
Beginner · 14-15 · 100-115
NAGAWorlds Teens & Adults
NoGiApr 27, 2025
LDEC
Kunal Kurani
2972-220
Tiger Kang MMA
White
Beginner · 14-15 · 100-115
NAGAWorlds Teens & Adults
GiApr 27, 2025
WSUB
Harry Marachilian
1412+260
East Coast MMA & Fitness
White
Beginner · 14-15 · 100-115
NAGAWorlds Teens & Adults
GiApr 27, 2025
LPTS
Nikita Gavriline
1398-360
Ifteam - Império Fight Team
White
Beginner · 12-13 · 110-125
NAGAPhiladelphia
NoGiFeb 8, 2025

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Rival Fighters

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Marco Cardile.jits

Revolution BJJ / RMNU

H2H3-0
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

Elite fighters may have match videos on Flograppling. A subscription is required to view.

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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.