How did Leon Marchand split 41.1 after 3:34.4 400 IM?! 😮

How did Arizona State's Leon Marchand win the 400 IM (3:34.4!) and then split 41.1 on the back of the 4x100 Medley Relay?!?    Coach David Marsh with some analysis after watching Leon clean up at Pac-12's:   "Coaches and young kids need to understand this....it's not a joke when we say that underwater kicking is the 2nd fastest way to swim. It may be the first fastest if you're kicking as fast as him!"    "The 400 IM, I got that he's staying underwater for about a minute and 40 seconds."   "He's traveling fast while staying under water."   "...he is a FLOW guy...has an amazing relationship with the water..."    "...all I can tell you is that a lot of it is underwater..." Support Our Sponsors: BRATTER PA IMMIGRATION LAW: Exclusive immigration representation of athletes, entrepreneurs, artists, investors, and entertainers. SWIM ANGELFISH: Receive the tools and skills needed to teach swimmers with autism, physical disabilities, anxiety, sensory and motor conditions with Swim Angelfish, the global leader in adaptive swim. Get certified online today! BEINE WELLNESS BUILDING: Individualize your nutrition with genetic testing and personalized plans. Eat, supplement, and recover based on your genetics. VASA: Essential dryland for stronger, better, faster swimmers. Save 10% using the code "brett" at checkout! DESTRO SWIM TOWERS: Save $150 per double swim tower by using the code "brett" at checkout! SWIMNERD: Big and small digital pace clocks, virtual scoreboards, and live results. Subscribe & Listen: Apple Podcasts Google Spotify YouTube Produced by: SWIMNERD #swimming #arizonastate #leonmarchand