Apr
25
2021

Roger Federer

Calibrated as a tennis player (public) and overall (paid-subscriber access)
Apr
25
2021

Serena Williams

Calibrated as a tennis player (public) and overall (paid-subscriber access)
Apr
23
2021

Reinhold Messner

"He made the first solo ascent of Mount Everest and, along with Peter Habeler, the first ascent of Everest without supplemental oxygen. He was the first climber to ascend all fourteen peaks over 8,000 metres above sea level." --Wikipedia
Apr
22
2021

LeBron James

Calibrated as a basketball player and overall. He is "considered one of the greatest NBA players in history" --wikipedia