William Haller
Fighter Intelligence
4 TournamentsGet notified when William Haller's rankings update
Advanced Analytics
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DVIWin Quality
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GI SPECIALISTSegment Analysis
Maleyellow BeltAges 10-115,468 FightersWin rate tracks at 35% for yellow belt. 17 matches and counting.
Fighter History
| Result | Fighter | JITS | Video |
|---|---|---|---|
| W | 1250+310 | ||
| L | 1230-140 | ||
| W | 5213+280 | ||
| W | 1020+350 | ||
| W | 5213+450 | ||
| L | 1250-260 | ||
| L | 1230-170 | ||
| L | 2792-420 | ||
| L | 1880-710 | ||
| L | 4302-210 |
From Evolution Grappling Academy
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Stats verified from completed tournaments only, may not represent a fighter's true record.
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About
William Haller is a Yellow belt from Evolution Grappling Academy in Brazilian Jiu Jitsu, NY, competing with a 1244 JITS rating and global rank of #26482. His 100% submission rate ranks 48 points above the 52% belt average, placing him in the top 59% of Yellow belts for finishing efficiency. Across 10 total matches in 3 tournaments, Haller has earned 0 gold, 0 silver, and 0 bronze medals.
Haller's 2 competitive wins came against higher-rated opponents, including an upset victory over Gary Schwartz (235-point rating gap). His development velocity index places him in the 62nd percentile among new_foundation competitors, indicating steady progression early in his career. He splits competition between gi (6 matches, 1030 rating) and no-gi (4 matches, 1020 rating) formats across JJWL and NAGA organizations since his debut in 2025.