Sports and Activities Swimming Performance List Back 2025-2026 Boys Swimming Gunnar Zinn Sophomore Rockhurst Ranking for 0 Filtered Schools Remove Filter Show Bested Performances 100 Back RankStudentContestYearDateTime #33 Gunnar Zinn ILC's 2025-2026 11/3-4 57.43 Gunnar Zinn ILC-Swim 2024-2025 11/4-5 1:00.65 * Converted from Meters Consideration Time = 1:03.79