Bullis DEMOLISHES Mixed 4x400m National Record, Quincy Wilson Splits 46 At VA Showcase 2025

Bullis School (MD) takes almost 10 seconds off the national high school record in the mixed 4x400m relay, clocking 3:22.94 at the 2025 VA Showcase. Quincy Wilson splits 46.33 on the opening leg a day after taking second in the 500m. Watch the 2025 VA Showcase LIVE on FloTrack and MileSplit: https://flosports.link/4gMAyZJ Website: http://flosports.link/3p20lTj Subscribe: http://flosports.link/3p4YLQp Get the FloSports iOS app: http://bit.ly/FloTrackiOSApp_9 Follow FloTrack Facebook:   / flotrack   Twitter:   / flotrack   Instagram:   / flotrack