Jits.GG
Mason Palmer-rebolo profile photo
TeamCheckmat HQ
TournamentGrand Finale 2025 North American - Dec 2025
[ grey / Youth ]CA

Mason Palmer-rebolo

Jits
5,612S-Tier
Top 0.1% of all rated fighters
+700Last event: Dec 7, 2025
#601
Overall
Top 1%
Percentile
#340
grey Belt
Record
27-779% Win Rate
27 Wins7 Losses
L
W
W
W
W
4-1 Last 5

Trophy Case

11 GoldNABJJF 8 · NAGA 1 · JJWL 1 · DREAM-BJJ 1
2025NABJJFNABJJFNABJJFGRAND FINALEGRAND FINALEGRAND FINALE

NABJJF GRAND FINALE GIDec 7, 2025

2025NAGANAGANAGAHAWAII (13HAWAII (13HAWAII (13

NAGA HAWAII (13 NO-GINov 8, 2025

2025CA CHAMPCA CHAMPCA CHAMP

JJWL CA CHAMP GINov 2, 2025

2025NABJJFNABJJFNABJJFINLAND EMPIREINLAND EMPIREINLAND EMPIRE

NABJJF INLAND EMPIRE GIOct 11, 2025

2025NABJJFNABJJFNABJJFINLAND EMPIREINLAND EMPIREINLAND EMPIRE

NABJJF INLAND EMPIRE NO-GIOct 11, 2025

2025DREAM-BJJDREAM-BJJDREAM-BJJ& :& :& :

DREAM-BJJ & : NO-GIOct 4, 2025

2025NABJJFNABJJFNABJJF20TH ANNUAL20TH ANNUAL20TH ANNUAL

NABJJF 20TH ANNUAL GISep 6, 2025

2025NABJJFNABJJFNABJJFLOS ANGELESLOS ANGELESLOS ANGELES

NABJJF LOS ANGELES GIJul 26, 2025

2025NABJJFNABJJFNABJJFLOS ANGELESLOS ANGELESLOS ANGELES

NABJJF LOS ANGELES NO-GIJul 26, 2025

2025NABJJFNABJJFNABJJFALL AMERICASALL AMERICASALL AMERICAS

NABJJF ALL AMERICAS GIJan 28, 2025

2025NABJJFNABJJFNABJJFALL AMERICASALL AMERICASALL AMERICAS

NABJJF ALL AMERICAS NO-GIJan 28, 2025

Fighter Intelligence

13 Tournaments
Medals
20Medals
across 13 tournaments
Gold 11
Silver 4
Bronze 5
55% Gold Rate
Belt Avg 34%
What this means55% of tournament entries result in gold — 21 points above the belt average. Elite podium consistency — this fighter dominates their brackets.
Finishing Ability
78%
Subs
Submission 21
Points 6
Other 0
Belt Avg 62%
+16 pts vs belt avg
What this means78% of wins by submission — 16 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 72% of peers

Win Quality

Giant Killer
Clutch Score: +21.0%
18
Close Wins
9
Exp. Wins
7
Losses
Best win: Beat Epifanio The Pitbull Pinca (2262 pts higher)
34 matches analyzed

Format Split

GI SPECIALIST
19 Gi15 NoGi
Gi
17W-2L89%
NoGi
10W-5L67%
Sub Rate
Gi 68%NoGi 53%
23% win rate delta — Gi stronger

Segment Analysis

Malegrey BeltAges 8-929,089 Fighters
Comparing to 29,089 grey belt fighters
Win Rate
80%avg 65%
AVG
+15 pts vs avg
Sub Rate
78%avg 62%
AVG
+16 pts vs avg
Gold Rate
62%avg 34%
AVG
+28 pts vs avg
What This Means

Ranked #340 of 29,089 grey belts. 80% win rate, 78% submission rate across 35 matches.

Tale of the Tape

Fighter History

34 matches
ResultMethodFighterJITSAcademyBracketVideoTournamentFormatDate
LSUB
Epifanio the Pitbull Pinca
7874-200
Art of Jiu Jitsu
Grey
#012 - Kids (no-gi) · Kid 3 · Grey · Up To 67.00 Lbs (feather) · Up To 67.00 Lbs (feather) (december 7th)
NABJJFGrand Finale 2025 North American
NoGiDec 7, 2025
WPTS
Lincoln Santos
1503+130
Point of Impact MMA
Grey
#012 - Kids (no-gi) · Kid 3 · Grey · Up To 67.00 Lbs (feather) · Up To 67.00 Lbs (feather) (december 7th)
NABJJFGrand Finale 2025 North American
NoGiDec 7, 2025
WSUB
Christopher Trujillo
2491+200
Sektor Jiu Jitsu
Grey
#094 - Kids (gi) · Kid 3 · Grey · Up To 70.00 Lbs (feather) · Up To 70.00 Lbs (feather) (december 7th)
NABJJFGrand Finale 2025 North American
GiDec 7, 2025
WPTS
Epifanio the Pitbull Pinca
7874+490
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)
NABJJFGrand Finale 2025 North American
GiDec 7, 2025
WSUB
Cash Carlson
1008+80
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)
NABJJFGrand Finale 2025 North American
GiDec 7, 2025
WPTS
Zedrik Kuniyuki
4716+90
Hnl Jiu Jitsu
Grey
Expert · 8-9 · 60-70
NAGAHawaii Kids II
NoGiNov 8, 2025
LSUB
Zedrik Kuniyuki
4716-1240
Hnl Jiu Jitsu
Grey
Expert · 8-9 · 60-70
NAGAHawaii Kids II
GiNov 8, 2025
WPTS 4-0
Jaxon Carrasco
1939+90
Sektor Jiu Jitsu
Grey
Youth · 60-69
JJWLCA Champ Gi Youth
GiNov 2, 2025
WSUB 0-0
Maddox McLaughlin
2911+170
Gracie Humaita Valencia
Grey
Youth · 60-69
JJWLCA Champ Gi Youth
GiNov 2, 2025
WSUB 0-0
Kai Coudriet
2060+250
Conde Koma BJJ
Grey
Youth · 60-69
JJWLCA Champ Gi Youth
GiNov 2, 2025

From Checkmat HQ

See all →
Ally Clark
Ally Clark
2,474
4-0 · 50% SUB
Elise Horn
Elise Horn
2,301
4-2 · 0% SUB
Mason Horn
Mason Horn
1,236
3-4 · 0% SUB
Mariya Palmer-rebolo
1,227
2-4 · 0% SUB
Hunter Benjamin Carey
Hunter Benjamin Carey
1,203
1-3 · 100% SUB
Giselle Lozoya
Giselle Lozoya
1,122
9-13 · 22% SUB
Lincoln Smith
1,082
4-5 · 25% SUB
Aiden Mejia
1,018
0-4 · 0% SUB

Rival Fighters

EP

Epifanio The Pitbull Pinca.jits

Art of Jiu Jitsu

H2H2-2
KC

Kai Coudriet.jits

Conde Koma BJJ

H2H3-0
Scouting Report
Data Sources
Matches34
Placements20
Tournaments13
Medals🥇 11🥈 4🥉 5
Sources
NABJJFNAGAJJWLADCCDREAM-BJJ
First MatchJan 2025
Last MatchDec 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

Mason Palmer-rebolo is a Grey belt from Checkmat HQ in Ladera Ranch, CA, competing across 11 total matches. His 50% submission rate ranks in the top 16% of Grey belts—5 points above the 45% belt average—and he has earned 2 gold medals, 2 silver medals, and 1 bronze across 4 tournaments. At 2256 JITS Rating, Palmer-rebolo places in the 87th global percentile and 84th percentile among Grey belts.

All 6 of Palmer-rebolo's wins came against higher-rated opponents, including a notable upset over Zedrik Kuniyuki (80-point rating gap). His development velocity index registers at +23.5 points per month, placing him in the 78th percentile for momentum among Grey belts. Palmer-rebolo competes across ADCC, JJWL, and NAGA events, with a 1185 Gi rating from 7 matches and a 1020 No-Gi rating from 4 matches, demonstrating stronger technical execution in the Gi format.

Frequently Asked Questions

Mason Palmer-rebolo has a 28-7 competition record across 35 matches in 13 tournaments.
Mason Palmer-rebolo is ranked #601 overall and #340 among grey belt competitors on Jits.gg.
Mason Palmer-rebolo has earned 11 gold, 4 silver, 5 bronze medals across 13 tournaments.
Mason Palmer-rebolo trains at Checkmat HQ and competes as a grey belt.
Mason Palmer-rebolo has a 78% submission rate and a 80% win rate across 35 matches.
Mason Palmer-rebolo is ranked #340 among grey belt competitors on Jits.gg.
Mason Palmer-rebolo's current Jits rating is 5612. Use the Rating Simulator on Mason Palmer-rebolo'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.