MileSplit Staff Mar 27, 2026 PRO See the rest of this article Access the complete article with MileSplit PRO. Subscribe to keep reading Already a subscriber? Log in. Improvement Rankings: Top Oklahoma Boys Discus marks compared to their season’s best performances from 2025. Most Improved - Discus Throw Comparing 2026 season to 2025 season Rank Improved Athlete/Team Class 2025 PR 2026 PR 1 +91' 11.00" Zachary Cannon Piedmont High School 2028 8-05.00 100-04.00 2 +45' 5.25" Elliott Quimby Mustang South MS 2030 68-06.75 114-00.00 3 +42' 5.00" David Masaku Jenks High School 2026 86-08.00 129-01.00 4 +41' 6.00" Bradley Walton Piedmont High School 2028 95-10.00 137-04.00 5 +40' 7.00" Drake Sproul Jenks High School 2026 81-05.00 122-00.00 6 ...