Exercise Scientist Critiques the Best CrossFitter Ever

TL;DR

Dr. Mike breaks down Tia-Clair Toomey's brutal five-session training day to explain why her weightlifting background and insane work capacity make her the greatest CrossFitter ever.

Key Points

• 1.Tia-Clair Toomey's weightlifting background is her core competitive advantage. CrossFit competitions include actual weightlifting movements, derivative movements like squats and push presses, and weightlifting builds the rare combination of strength and flexibility that transfers directly to CrossFit performance.
• 2.Toomey's typical games-prep day includes five distinct training sessions. Starting with a 15k run at 8am, she follows with gym work covering snatch skills, conditioning, strongman, and strength, then adds afternoon accessories and a cooldown bike ride — totaling four to five workouts in one day.
• 3.Her coach deliberately sequences strength after metcons to simulate CrossFit Games conditions. At the Games, metabolic conditioning typically precedes heavy lifting, so training strength under fatigue prepares Toomey psychologically and technically for what she'll actually face in competition.
• 4.A resting heart rate of 48 bpm signals elite aerobic fitness. Dr. Mike explains this reflects oxygen-rich blood, highly efficient peripheral tissues, and a strong heart that pumps large stroke volumes per beat — anything below 50 is described as exceptional.
• 5.CrossFit technique prioritizes efficiency over hypertrophy. Toomey's dumbbell bench press, touch-and-go deadlifts, and chest-to-bar pull-ups are performed to maximize work capacity and sport transfer, not muscle growth — pure hypertrophy training would require slower, deeper, more isolated movements.
• 6.Toomey is the greatest CrossFitter of all time, male or female, with eight Games titles. No male athlete has won more than five, with Matt Fraser holding the men's record — Dr. Mike rates her a 10 out of 10 and notes disrupted sleep as the one warning sign of potential overreaching in her training block.