Girls 4x100
The girls relay comes with a double play of Long Beach Poly (Ca.) High, who recorded a time of 44.50 seconds in 2004 for the national record. While Mesquite Horn (above) is less than a second away from that national record, capturing a perfect race is harder than it seems.
Closest overall: Dallas Skyline (Tx.), 44.60, 2004
Closest in 2017: Mesquite Horn (Tx.), 45.27