Austin Marathon 2025 Registration Details. Run austin on feb 16, 2025 in austin, tx. Full marathon, half marathon, and 5k have a storied history dating back to 1992, and it has grown to become one of the largest marathons in the united states.

Online registration for marathon, half marathon, 5k, manzano mile, vip, price increase schedule, refund, transfer, and deferral process. Austin, texas, may 6, 2024 — registration for the 2025 ascension seton austin marathon, half marathon & 5k ® officially opens tuesday, may 13th.