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 48.99 Demetiurs Burnet D'Iberville High School 2026 MHSAA Region 4-7A - Updated Apr 16, 2025 2 49.00 Dwight Palmer, Jr. Warren Central High School 2026 MHSAA Region 2-6A Apr 14, 2025 3 49.16 AC Fears Tupelo High School 2026 MHSAA 1A South/7A North State Championships Apr 26, 2025 4 49.17 Tyree LeSueur Horn Lake High School 2026 MHSAA 1A South/7A North State Championships Apr 26, 2025 5 49.41 Hayden Mcneal Desoto Central High School 2026 MHSAA 1A South/7A North State ...