VONK Stefan

4 races · 2026 index 754

• 2026-09-12 Challenge Almere-Amsterdam 2026 (Middle Distance Age Group) – 4:28:57 (#47)
• 2026-06-21 Ironman 70.3 Westfriesland (2026) – 4:27:15 (#35)
• 2025-08-31 Regiobank Heller & Heller Triathlon Klazienaveen – 4:25:50 (#12)
• 2024-06-23 Ironman 70.3 Westfriesland – 5:12:07 (#396)