MileSplit Staff Mar 18, 2026 PRO See the rest of this article Access the complete article with MileSplit PRO. Subscribe to keep reading Already a subscriber? Log in. Ranking the top underclassman Boys 300m Hurdles performers in California during the 2026 Outdoor Season. 300 Meter Hurdles Rank Time Athlete/Team Class Meet / Date 1 39.02 Lawrence (Tres) Onyejekwe Menlo School (CC) 2028 K-Bell Track and Field Classic Mar 7, 2026 2 39.38 Samuel Haven Bellarmine College Prep (CC) 2028 Saint Francis v Bellarmine/Presentation Mar 11, 2026 3 39.80 Jordan Ayers Trabuco Hills (SS) 2028 Mustang Round Up Feb 28, 2026 4 40.13 Isaiah Thompson Kingsburg (CS) 2028 Exeter Spring Launch (MEET IS FULL) Mar 7, 2026 5 40.36 Conor Callahan ...