Free Solo Climber, Alex Honnold Honnold is the man who climbed El Capitan without ropes. In this National Geographic article we learn that the climber "is an inveterate note-taker, logging his workouts and evaluating his performance on every climb in a detailed journal."
Free soloing on On El Capitan.
Boston Red Star J.D. Martinez
Martinez in the dugout taking notes on his at-bat.
Martinez led the 2018 World Champions in homeruns, RBIs, and hits, and has kept notes on his performances for years.
The Secret of Adam Ottavino's Notebook
"The star Yankees reliever once couldn’t tame the thoughts and doubts running through his mind on the mound. Now, he meticulously documents them every day to stay mentally sharp." Read about his writing here.
Alpine skiing: Shiffrin has all the answers - written down
"She explained how she had written down in her notebook all the questions she had been asked, or felt she might face so nothing would faze or unsettle her on the biggest stage of all. She has, of-course, written down all the answers." On her way to Olympic stardom, Mikaela Shiffrin shared how writing helped her ski racing in this article.
PGA's Derek Deminsky
It's Time to Start a Golf Journal When I hear someone tell me that they’ve been playing well lately, I ask them to give me a tangible reason why. All too often I’ll hear the reply, “Well, I’m not really sure.” Then, a few rounds later, they complain that their game has somehow vanished.I’m a firm believer in keeping a golf journal if you are serious about your game and crave consistency... Read More.