TournamentPBJJF World Jiu-Jitsu Championship - Oct 2025
[ grey / youth ]NJ
Brock Kostora
Jits
1,213Prospect
~187 Jits to Advanced
-1060Last event: Jun 14, 2025
#52,965
Overall
Top 59%
Percentile
#17,483
grey Belt
Record
6-1726% Win Rate
6 Wins17 Losses
L
L
L
L
L
0-5 Last 5
Fighter Intelligence
4 TournamentsMedals
5Medals
across 4 tournaments
Gold 0
Silver 3
Bronze 2
0% Gold Rate
Belt Avg 31%
What this means0% of tournament entries result in gold — 31 points below the belt average. Still building a medal collection at this level.
Finishing Ability
83%
Subs
Submission 5
Points 0
Other 1
Belt Avg 61%
+22 pts vs belt avg
What this means83% of wins by submission — 22 points above the belt average. This fighter has elite finishing ability for their rank.
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Advanced Analytics
AI CalculatedGrowth Trajectory
DVIBuilding New Foundation
Building a new foundation
Growing faster than 3% of peers
Win Quality
Building
Clutch Score: -15.5%
1
Upset Wins
5
Close Wins
17
Losses
Best win: Beat Isabel Mera (3640 pts higher)
23 matches analyzed
Format Split
BALANCED13 Gi10 NoGi
Gi
3W-10L23%
NoGi
3W-7L30%
Sub Rate
Gi 23%NoGi 20%
7% win rate delta — NoGi stronger
Segment Analysis
Malegrey BeltAges 8-929,089 FightersComparing to 29,089 grey belt fighters
Win Rate
26%avg 57%
AVG
-31 pts vs avg
Sub Rate
83%avg 61%
AVG
+22 pts vs avg
Gold Rate
0%avg 31%
AVG
-31 pts vs avg
What This Means
23 matches of tournament experience at grey belt. Every rep builds the foundation.
Tale of the Tape
Fighter History
23 matches
| Result | Method | Fighter | JITS | Academy | Bracket | Video | Tournament | Format | Date |
|---|---|---|---|---|---|---|---|---|---|
| L | PTS | 2281- | Ground Control | Grey Mighty Mite (4&5yrs) · Grey · -25 Kg · 25kg | NoGi | Oct 26, 2025 | |||
| L | PTS | 3756- | Potomac MMA | Grey Mighty Mite (4&5yrs) · Grey · -25 Kg · 25kg | NoGi | Oct 26, 2025 | |||
| L | PTS | 3756- | Potomac MMA | Grey Mighty Mite (4&5yrs) · Grey · -25 Kg · 25kg | Gi | Oct 26, 2025 | |||
| L | PTS | 2281- | Ground Control | Grey Mighty Mite (4&5yrs) · Grey · -25 Kg · 25kg | Gi | Oct 26, 2025 | |||
| L | PTS | 1840- | Culture of Jiu Jitsu/ Gfteam | White Pee Wee (5&6yrs) · White · Grey · -25 Kg · 25kg | NoGi | Aug 24, 2025 | |||
| L | PTS | 1840- | Culture of Jiu Jitsu/ Gfteam | White Pee Wee (5&6yrs) · White · Grey · -25 Kg · 25kg | NoGi | Aug 24, 2025 | |||
| L | SUB | 2281- | Ground Control | White Mighty Mite (4&5yrs) · White · Grey · -25 Kg · 25kg | Gi | Aug 24, 2025 | |||
| W | SUB | 2281- | Ground Control | White Mighty Mite (4&5yrs) · White · Grey · -25 Kg · 25kg | Gi | Aug 24, 2025 | |||
| L | PTS | 2281- | Ground Control | White Mighty Mite (4&5yrs) · White · Grey · -25 Kg · 25kg | Gi | Aug 24, 2025 | |||
| W | PTS | 4853+870 | Cochabamba BJJ | Grey No Gi Kids · Intermediate · 6 - 7 Years · -55 Lbs | NoGi | Jun 14, 2025 |
From SPECTRUM JIU JITSU
See all →Scouting Report
Data Sources
Matches23
Placements5
Tournaments4
Medals🥈 3🥉 2
Sources
PBJJFGRAP
First MatchMay 2025
Last MatchOct 2025
Stats verified from completed tournaments only, may not represent a fighter's true record.
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Similar Fighters
About
Brock Kostora is a grey belt competitor from SPECTRUM JIU JITSU in NJ with an impressive 83% submission rate across 23 matches. With a 6-17 record and 3 silver, 2 bronze medals, Brock Kostora has competed in 4 tournaments.
Frequently Asked Questions
Brock Kostora has a 6-17 competition record across 23 matches in 4 tournaments.
Brock Kostora is ranked #52965 overall and #17483 among grey belt competitors on Jits.gg.
Brock Kostora has earned 3 silver, 2 bronze medals across 4 tournaments.
Brock Kostora trains at SPECTRUM JIU JITSU and competes as a grey belt.
Brock Kostora has a 83% submission rate and a 26% win rate across 23 matches.
Brock Kostora is ranked #17483 among grey belt competitors on Jits.gg.
Brock Kostora's current Jits rating is 1213. Use the Rating Simulator on Brock Kostora'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.