Table 2 Types and proportions of background fighting styles.

Background fighting style	Percentage of competitors ±95% CI (n = 1284 competitors)
Jiu‐jitsu	22.2±2.3
Wrestling	20.3±2.2
Submission fighting*	16.2±2.0
Kickboxing	12.9±1.8
Freestyle†	11.1±1.7
Sambo	2.6±1.0
Karate	2.3±0.8
Pitfighting‡	2.0±0.8

Styles with <2% representation each included aikido, boxing, capoeira, jeet kune do, judo, kuk sool won, kung fu, ninjitsu, savate, sumo, and tae kwon do.

*Competitors had a preponderance of grappling skills intermixed with striking capabilities.

†Competitors blended grappling skills with striking skills equally.

‡Competitors were accustomed to illegal, no rules matches.

CI, Confidence interval.