Jits.GG
Greyson Thammasithiboon profile photo
TeamUnderground BJJ
TournamentDallas XII Gi Youth - Sep 2025
[ Grey / Youth ]TX

Greyson Thammasithiboon

Jits
1,444Advanced
~456 Jits to Elite
+390Last event: Sep 6, 2025
#35,683
Overall
Top 39%
Percentile
#11,860
Grey Belt
Record
3-260% Win Rate
3 Wins2 Losses
L
W
W
L
W
3-2 Last 5

Fighter Intelligence

2 Tournaments
Medals
2Medals
across 2 tournaments
Gold 0
Silver 1
Bronze 1
0% Gold Rate
Belt Avg 12%
Finishing Ability
0%
Subs
Submission 0
Points 3
Other 0
Belt Avg 22%
-22 pts vs belt avg
What this means0% of wins by submission — 22 points below the belt average. This fighter wins primarily through points and decisions.

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Advanced Analytics

AI Calculated

Growth Trajectory

DVI
Building Momentum
Winning more than losing — building momentum
Growing faster than 62% of peers

Win Quality

Consistent
Clutch Score: +4.7%
3
Close Wins
2
Losses
Best win: Beat Raylind Green (186 pts higher)
5 matches analyzed

Format Split

GI SPECIALIST
5 Gi0 NoGi
Gi
3W-2L60%
NoGi
0W-0L—%
60% win rate delta — Gi stronger

Segment Analysis

MaleGrey BeltAges 12-1329,712 Fighters
Comparing to 29,712 grey belt fighters
Win Rate
60%avg 30%
AVG
+30 pts vs avg
Sub Rate
0%avg 22%
AVG
-22 pts vs avg
Gold Rate
0%avg 12%
AVG
-12 pts vs avg
What This Means

Win rate tracks at 60% for grey belt. 5 matches and counting.

Tale of the Tape

Fighter History

5 matches
ResultMethodFighterJITSAcademyBracketVideoTournamentFormatDate
LSUB 0-12
Harbin Armstrong
2409-320
Cjjf Prosper
Grey
JR Teen 2012-2013 · 120-129
JJWLDallas XII Gi Youth
GiSep 6, 2025
WPTS 4-3
Raylind Green
1630+710
Alex Martins Brazilian Jiu Jitsu
Grey
JR Teen 2012-2013 · 120-129
JJWLDallas XII Gi Youth
GiSep 6, 2025
WPTS 12-0
Ronin Wester
1280+1330
Northern Tribe
Grey
JR Teen · 110-119
JJWLTexas VII Gi Youth
GiApr 5, 2025
LSUB 0-0
Travis Kumar
1347-1890
Rma - Rocha Martial Arts
Grey
JR Teen · 110-119
JJWLTexas VII Gi Youth
GiApr 5, 2025
WDEC 0-0
Henry Newby
1010+710
Gracie One
Grey
JR Teen · 110-119
JJWLTexas VII Gi Youth
GiApr 5, 2025

From Underground BJJ

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Evelyn Kim Nguyen
5,131
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Nishant Bist
Nishant Bist
2,685
4-1 · 75% SUB
Oliver Icleanu
2,367
3-1 · 67% SUB
Lucas Nguyen
2,241
7-3 · 43% SUB
Dane Girard
Dane Girard
2,199
4-2 · 25% SUB
Alicia Chou
Alicia Chou
1,574
1-1 · 100% SUB
Jaycee Dowse
1,528
2-0 · 0% SUB
Avery Malarae
Avery Malarae
1,254
1-3 · 0% SUB
Scouting Report
Data Sources
Matches5
Placements2
Tournaments2
Medals🥈 1🥉 1
Sources
JJWL
First MatchApr 2025
Last MatchSep 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

Greyson Thammasithiboon is a Grey belt competitor from Underground BJJ in TX in the early stages of their competition career. With a 3-2 record across 5 matches and 1 silver, 1 bronze medals.

Frequently Asked Questions

Greyson Thammasithiboon has a 3-2 competition record across 5 matches in 2 tournaments.
Greyson Thammasithiboon is ranked #35683 overall and #11860 among Grey belt competitors on Jits.gg.
Greyson Thammasithiboon has earned 1 silver, 1 bronze medals across 2 tournaments.
Greyson Thammasithiboon trains at Underground BJJ and competes as a Grey belt.
Greyson Thammasithiboon is ranked #11860 among Grey belt competitors on Jits.gg.
Greyson Thammasithiboon's current Jits rating is 1444. Use the Rating Simulator on Greyson Thammasithiboon'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.