TournamentTap Cancer Out 2025 Massachusetts BJJ Open - YOUTH - Nov 2025
[ grey / Youth ]MA
Jack Duffy
Jits
1,854Advanced
~46 Jits to Elite
+640Last event: Nov 16, 2025
#19,814
Overall
Top 22%
Percentile
#7,381
grey Belt
Record
6-460% Win Rate
6 Wins4 Losses
W
W
W
L
L
3-2 Last 5+3 Streak
Trophy Case
1 GoldTAP-CANCER-OUT 1Fighter Intelligence
4 TournamentsMedals
4Medals
across 4 tournaments
Gold 1
Silver 2
Bronze 1
25% Gold Rate
Belt Avg 23%
What this means25% of tournament entries result in gold — 2 points above the belt average. Still building a medal collection at this level.
Finishing Ability
33%
Subs
Submission 2
Points 4
Other 0
Belt Avg 45%
-12 pts vs belt avg
What this means33% of wins by submission — 12 points below the belt average. This fighter wins primarily through points and decisions.
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Advanced Analytics
AI CalculatedGrowth Trajectory
DVIBuilding Momentum
Winning more than losing — building momentum
Growing faster than 66% of peers
Win Quality
Overachiever
Clutch Score: +6.1%
6
Close Wins
4
Losses
10 matches analyzed
Format Split
GI SPECIALIST10 Gi0 NoGi
Gi
6W-4L60%
NoGi
0W-0L—%
Sub Rate
Gi 20%NoGi 0%
60% win rate delta — Gi stronger
Segment Analysis
Malegrey BeltAges 10-1129,089 FightersComparing to 29,089 grey belt fighters
Win Rate
60%avg 51%
AVG
+9 pts vs avg
Sub Rate
33%avg 45%
AVG
-11 pts vs avg
Gold Rate
25%avg 23%
AVG
What This Means
Win rate tracks at 60% for grey belt. 10 matches and counting.
Tale of the Tape
Fighter History
10 matches
| Result | Fighter | JITS | Video |
|---|---|---|---|
| W | 1297+340 | ||
| W | 1010+300 | ||
| W | 1321+700 | ||
| L | 1780-630 | ||
| L | 2251-750 | ||
| W | 1227+820 | ||
| W | 1169+510 | ||
| L | 3957-700 | ||
| L | 2772-230 | ||
| W | 1160+1090 |
From Newaza Bjj - GF Team
See all →
Scouting Report
Data Sources
Matches10
Placements4
Tournaments4
Medals🥇 1🥈 2🥉 1
Sources
TAP-CANCER-OUTGRAPJJWL
First MatchMar 2025
Last MatchNov 2025
Stats verified from completed tournaments only, may not represent a fighter's true record.
FloGrappling Videos
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Similar Fighters
About
Jack Duffy is a grey belt competitor from Newaza Bjj - GF Team in MA with a 6-4 competition record. Earned 1 gold, 2 silver, 1 bronze medals across 10 matches. Competing since 2025.
Frequently Asked Questions
Jack Duffy has a 6-4 competition record across 10 matches in 4 tournaments.
Jack Duffy is ranked #19814 overall and #7381 among grey belt competitors on Jits.gg.
Jack Duffy has earned 1 gold, 2 silver, 1 bronze medals across 4 tournaments.
Jack Duffy trains at Newaza Bjj - GF Team and competes as a grey belt.
Jack Duffy has a 33% submission rate and a 60% win rate across 10 matches.
Jack Duffy is ranked #7381 among grey belt competitors on Jits.gg.
Jack Duffy's current Jits rating is 1854. Use the Rating Simulator on Jack Duffy'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.