Science2016Queensland, Australiahigh confidence

Mark Visser, a big wave surfer from the Sunshine Coast, underwent VO2max testing on 24 February 2016.

Notes on verification

Confirmed via independent university press release and multiple corroborating sources matching exact date, name, sport, and test type. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.917 clusters=3 claim_tier=everyday | kind=empirical eligibility=high]

Sources