TournamentGrappling Industries BOISE - Dec 2025
[ grey / youth ]ID
Jack Kowalczuk
Jits
2,484Elite
~616 Jits to Prodigy
+2380Last event: Dec 13, 2025
#9,462
Overall
Top 11%
Percentile
#4,033
grey Belt
Record
11-761% Win Rate
11 Wins7 Losses
W
L
W
W
W
4-1 Last 5
Fighter Intelligence
2 TournamentsMedals
3Medals
across 2 tournaments
Gold 0
Silver 0
Bronze 3
0% Gold Rate
Belt Avg 30%
What this means0% of tournament entries result in gold — 30 points below the belt average. Still building a medal collection at this level.
Finishing Ability
27%
Subs
Submission 3
Points 8
Other 0
Belt Avg 50%
-23 pts vs belt avg
What this means27% of wins by submission — 23 points below the belt average. This fighter wins primarily through points and decisions.
Get notified when Jack Kowalczuk's rankings update
Advanced Analytics
AI CalculatedGrowth Trajectory
DVIDominant
Dominant — winning at an elite level
Growing faster than 99% of peers
Win Quality
Overachiever
Clutch Score: +7.6%
11
Close Wins
7
Losses
Best win: Beat Karter Calhoun (127 pts higher)
18 matches analyzed
Format Split
GI SPECIALIST9 Gi9 NoGi
Gi
6W-3L67%
NoGi
5W-4L56%
Sub Rate
Gi 11%NoGi 22%
11% win rate delta — Gi stronger
Segment Analysis
Malegrey BeltAges 10-1129,089 FightersComparing to 29,089 grey belt fighters
Win Rate
61%avg 54%
AVG
+7 pts vs avg
Sub Rate
27%avg 50%
AVG
-23 pts vs avg
Gold Rate
0%avg 30%
AVG
-30 pts vs avg
What This Means
Ranked #4033 of 29,089 grey belts. 61% win rate across 18 matches.
Tale of the Tape
Fighter History
18 matches
| Result | Method | Fighter | JITS | Academy | Bracket | Video | Tournament | Format | Date |
|---|---|---|---|---|---|---|---|---|---|
| W | PTS | 1202+580 | Yemaso Brazilian Jiujitsu | Grey No Gi Kids · Intermediate · 8 - 9 Years · -75 Lbs | NoGi | Dec 13, 2025 | |||
| L | SUB | 4432-310 | Team Rhino Gracie Jiu-jitsu | Grey No Gi Kids · Intermediate · 8 - 9 Years · -75 Lbs | NoGi | Dec 13, 2025 | |||
| W | PTS | 1202+460 | Yemaso Brazilian Jiujitsu | Grey No Gi Kids · Intermediate · 8 - 9 Years · -75 Lbs | NoGi | Dec 13, 2025 | |||
| W | SUB | 1173+200 | Aspire To Inspire | Grey No Gi Kids · Intermediate · 8 - 9 Years · -75 Lbs | NoGi | Dec 13, 2025 | |||
| W | SUB | 1200+790 | Aspire To Inspire | Grey No Gi Kids · Intermediate · 8 - 9 Years · -75 Lbs | NoGi | Dec 13, 2025 | |||
| W | PTS | 2611+360 | Hips & Grips | Grey Gi Kids · Grey · 8 - 9 Years · -75 Lbs | Gi | Dec 13, 2025 | |||
| W | PTS | 1202+340 | Yemaso Brazilian Jiujitsu | Grey Gi Kids · Grey · 8 - 9 Years · -75 Lbs | Gi | Dec 13, 2025 | |||
| W | DEC | 1074+250 | 208 Jiu Jitsu/trujitsu | Grey Gi Kids · Grey · 8 - 9 Years · -75 Lbs | Gi | Dec 13, 2025 | |||
| L | SUB | 4432-550 | Team Rhino Gracie Jiu-jitsu | Grey Gi Kids · Grey · 8 - 9 Years · -75 Lbs | Gi | Dec 13, 2025 | |||
| W | PTS | 2611+260 | Hips & Grips | Grey Gi Kids · Grey · 8 - 9 Years · -75 Lbs | Gi | Dec 13, 2025 |
From Gracie Barra Boise
See all →Rival Fighters
Scouting Report
Data Sources
Matches18
Placements3
Tournaments2
Medals🥉 3
Sources
GRAP
First MatchMar 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.
Similar Fighters
About
Jack Kowalczuk is a grey belt competitor from Gracie Barra Boise in ID, currently dominant in competition. With a 11-7 record across 18 matches and 3 bronze medals. Competing since 2025.
Frequently Asked Questions
Jack Kowalczuk has a 11-7 competition record across 18 matches in 2 tournaments.
Jack Kowalczuk is ranked #9462 overall and #4033 among grey belt competitors on Jits.gg.
Jack Kowalczuk has earned 3 bronze medals across 2 tournaments.
Jack Kowalczuk trains at Gracie Barra Boise and competes as a grey belt.
Jack Kowalczuk has a 27% submission rate and a 61% win rate across 18 matches.
Jack Kowalczuk is ranked #4033 among grey belt competitors on Jits.gg.
Jack Kowalczuk's current Jits rating is 2484. Use the Rating Simulator on Jack Kowalczuk'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.