Show notes
Marshall Repp on Player Profiling, Lessons from the SEAL Teams, and Building Toughness Together
Jay DeMayo welcomes Marshall Repp, who recently joined the Maryland men's basketball program, for a conversation about how he profiles athletes and why he builds his programming around how each one is built. Marshall traces his path from Velocity Sports Performance to Eastern Michigan, Michigan State, and the East Coast SEAL teams, and explains how that last stop reshaped his approach to testing, training, and team culture. We discuss how Marshall turns test data into a simple two-axis profile, why that profile guides his training without limiting athletes, and how he uses force-plate jumps to manage fatigue during the season. Marshall also explains why he still mixes in carefully chosen, deliberately unfair high-intensity sessions to build trust and toughness within a team.
Key takeaways
· Marshall's time with the SEAL teams led him to study what makes elite performers different and sparked his deep dive into athlete profiling.
· Profiling starts with testing a wide range of qualities, converting each result to a sten score (a standardized 1-to-10 score), and plotting the scores on a radar graph to show where an athlete is above or below average.
· His main profile plots athletic expression (RSI mod from the counter-movement jump) against aerobic ability (a three-mile run for the SEALs and a three-minute max aerobic speed test for basketball).
· That profile sorts athletes into hybrids, racehorses, workhorses, and athletes who are weak in both areas.
· Workhorses tend to respond best to higher volume and longer, steadier conditioning, while racehorses tend to prefer heavier, lower-rep lifting and shorter, harder intervals.
· The profile guides how he trains each athlete, but the goal is still to move everyone toward being a hybrid.
· Marshall went from a high-intensity, machine-based background to a sports-science approach, and he still keeps doses of high intensity in his programs.
· He sometimes makes sets unfair on purpose, a habit he took from the SEALs, because sport and life are not always fair and the shared struggle brings teammates together.
· Surprise last sets and a partner-based turf grinder that ends in a 100-yard buddy carry show him who will push through for a teammate.
· At Michigan State he got Coach Izzo to move lifting before practice, using short daily sessions that he called "microdosing" and that he adjusted day to day with force-plate data.
· He tracks time to takeoff and jump height against each athlete's own average to decide when to pull back and when to push.
· Marshall closes by recommending Ken Mannie as a future guest, calling him a mentor and a former Michigan State strength coach.