MileSplit Staff Feb 07, 2026 PRO See the rest of this article Access the complete article with MileSplit PRO. Subscribe to keep reading Already a subscriber? Log in. 400 Meter Dash Rank Time Athlete/Team Class Meet / Date 1 48.67 Anderson Douglass Desert Vista High School 2027 AIA Division I, II, and V Championships May 8, 2025 2 48.86 Ryder Guerrero Arizona Flames Track Club 2027 USATF Region 10 Junior Olympic Championships Jul 3, 2025 3 48.91 Benjamin Harris North Canyon High School 2027 Northeast Valley Championships Apr 28, 2025 4 48.92 Christian Hinton Hamilton High School 2027 AIA Division I, II, and V Championships May 8, 2025 5 48.93 Garrett Larsen Brophy College Preparatory 2027 ...