Jits.GG
TeamZenith BJJ - Las Vegas
TournamentNAGA Nashville Grappling Championship - Mar 2026
[ grey / youth ]CA

Grimm Airis Ray Koller

Jits
1,209Prospect
~191 Jits to Advanced
-1030Last event: Sep 20, 2025
#53,505
Overall
Top 60%
Percentile
#17,666
grey Belt
Record
7-1729% Win Rate
7 Wins17 Losses
L
L
L
W
L
1-4 Last 5

Trophy Case

1 GoldGRAPPLING-X 1

Fighter Intelligence

7 Tournaments
Medals
11Medals
across 7 tournaments
Gold 1
Silver 7
Bronze 3
9% Gold Rate
Belt Avg 41%
What this means9% of tournament entries result in gold — 32 points below the belt average. Still building a medal collection at this level.
Finishing Ability
43%
Subs
Submission 3
Points 4
Other 0
Belt Avg 61%
-18 pts vs belt avg
What this means43% of wins by submission — 18 points below the belt average. Solid finishing ability with room to grow.

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Advanced Analytics

AI Calculated

Growth Trajectory

DVI
Rebuilding Phase
Working through a challenging stretch
Growing faster than 54% of peers

Win Quality

Building
Clutch Score: -15.3%
6
Close Wins
15
Losses
Best win: Beat Gunnar Stewart (2415 pts higher)
21 matches analyzed

Format Split

GI SPECIALIST
11 Gi10 NoGi
Gi
5W-6L45%
NoGi
1W-9L10%
Sub Rate
Gi 18%NoGi 0%
35% win rate delta — Gi stronger

Segment Analysis

Malegrey BeltAges 14-1529,089 Fighters
Comparing to 29,089 grey belt fighters
Win Rate
32%avg 61%
AVG
-30 pts vs avg
Sub Rate
43%avg 61%
AVG
-18 pts vs avg
Gold Rate
14%avg 41%
AVG
-27 pts vs avg
What This Means

22 matches of tournament experience at grey belt. Every rep builds the foundation.

Tale of the Tape

Next Tournaments

NAGA
NAGA Nashville Grappling ChampionshipMar 28, 2026
RegisterView All Brackets

Fighter History

21 matches
ResultMethodFighterJITSAcademyBracketVideoTournamentFormatDate
LSUB
Gunner Daly
1835-870
Team Shawn Hammonds
-
12-13 · Intermediate · 2 - 5 Years · Cruiserweight (116-125 Lbs.)
NEWBDNASHVILLE FALL
NoGiSep 20, 2025
LSUB
Gunner Daly
1835-380
Team Shawn Hammonds
-
12-13 · Intermediate · 2 - 5 Years · Cruiserweight (116-125 Lbs.)
NEWBDNASHVILLE FALL
NoGiSep 20, 2025
LSUB
Gunner Daly
1835-250
Team Shawn Hammonds
Grey
12-13 · 2 - 5 Years · Cruiserweight (116-125 Lbs.)
NEWBDNASHVILLE FALL
GiSep 20, 2025
WSUB
Piper Woolman
1093+470
Gracie Barra Tennessee
Grey
12-13 · 2 - 5 Years · Cruiserweight (116-125 Lbs.)
NEWBDNASHVILLE FALL
GiSep 20, 2025
LSUB
Gunner Daly
1835-
Team Shawn Hammonds
Grey
Teens No-gi >> Intermediate-advanced >> 11-13 Yrs >> Under 125 Lbs [e1]
GRAPPLING-GAMESTHE 2025 NASHVILLE SUMMER GAMES
NoGiAug 16, 2025
LSUB
Elijah Riggs
--
Vigilance Jiu-jitsu
Grey
Teens Gi >> Greyblack >> 13 Yrs >> Under 125 Lbs
GRAPPLING-GAMESTHE 2025 NASHVILLE SUMMER GAMES
GiAug 16, 2025
WPTS
Elijah Riggs
--
Vigilance Jiu-jitsu
Grey
Teens Gi >> Greyblack >> 13 Yrs >> Under 125 Lbs
GRAPPLING-GAMESTHE 2025 NASHVILLE SUMMER GAMES
GiAug 16, 2025
LPTS
Elijah Riggs
--
Vigilance Jiu-jitsu
Grey
Teens Gi >> Greyblack >> 13 Yrs >> Under 125 Lbs
GRAPPLING-GAMESTHE 2025 NASHVILLE SUMMER GAMES
GiAug 16, 2025
LSUB
Kruz Blackwell
2387-
Fight Zone Jiujitsu Tn
-
Kids/teens No-gi >> Beginner-intermediate >> 12-13 Yrs >> Under 105 Lbs
GRAPPLING-GAMESTHE 2025 NASHVILLE SPRING GAMES
NoGiApr 26, 2025
LPTS
Kruz Blackwell
2387-
Fight Zone Jiujitsu Tn
-
Kids/teens No-gi >> Beginner-intermediate >> 12-13 Yrs >> Under 105 Lbs
GRAPPLING-GAMESTHE 2025 NASHVILLE SPRING GAMES
NoGiApr 26, 2025

From Zenith BJJ - Las Vegas

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Rocco Valentino K. Mata-monks
#366
Rocco Valentino K. Mata-monks
6,211
71-26 · 75% SUB
Daxton Hardy
Daxton Hardy
4,572
35-15 · 80% SUB
Logan Joseph Price
2,444
10-5 · 40% SUB
Timothy John Trax
2,223
13-2 · 46% SUB
Blue Rose Melody Najarro
Blue Rose Melody Najarro
1,811
14-16 · 14% SUB
Brooke Ann Zema
1,362
5-7 · 80% SUB
Luca Samuel Zema
1,075
4-11 · 25% SUB
Chloe Elizabeth Zema
1,068
6-10 · 50% SUB

Rival Fighters

GD

Gunner Daly.jits

Team Shawn Hammonds

H2H0-4
ER

Elijah Riggs.jits

Vigilance Jiu-Jitsu

H2H1-2
CD

Connor Davis.jits

Sitan Gym AZ BJJ

H2H1-2
GS

Gunnar Stewart.jits

Valhalla Jiu Jitsu & MMA

H2H1-2
Scouting Report
Data Sources
Matches21
Placements11
Tournaments7
Medals🥇 1🥈 7🥉 3
Sources
NEWBDGRAPPLING-GAMESNAGAGRAPPLING-XIBJJF
First MatchMar 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

Grimm Airis Ray Koller is a Grey belt from Zenith BJJ in Las Vegas competing at a 1193 JITS rating and #13294 belt rank. His 33% submission rate ranks in the top 64% of Grey belts, sitting 12 points above the 45% belt average. Across 11 total matches in 4 tournaments, Koller has earned 4 silver medals and 3 bronze medals with zero gold finishes.

Koller's 3 competitive wins came against higher-rated opponents, including a notable 2337-point upset over Gunnar Stewart. His development velocity sits at the 46th percentile with a "new_foundation" trajectory, indicating early-stage skill consolidation. He splits evenly between formats—1030 rating in gi across 6 matches and 1035 in no-gi across 7 matches—while competing exclusively in NAGA and NEWBREED events.

Frequently Asked Questions

Grimm Airis Ray Koller has a 7-15 competition record across 22 matches in 7 tournaments.
Grimm Airis Ray Koller is ranked #53505 overall and #17666 among grey belt competitors on Jits.gg.
Grimm Airis Ray Koller has earned 1 gold, 7 silver, 3 bronze medals across 7 tournaments.
Grimm Airis Ray Koller trains at Zenith BJJ - Las Vegas and competes as a grey belt.
Grimm Airis Ray Koller has a 43% submission rate and a 32% win rate across 22 matches.
Grimm Airis Ray Koller is ranked #17666 among grey belt competitors on Jits.gg.
Grimm Airis Ray Koller's current Jits rating is 1209. Use the Rating Simulator on Grimm Airis Ray Koller'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.