Bangsaen21
Race Day Weather
Warm, adjust pace wisely
Runners will face temperatures starting at 72°F and peaking at 73°F, with humidity at a high 78%. A headwind from miles 3 to 6 will challenge pacing, so runners should conserve energy during this stretch. The light winds shifting to a tailwind in the later miles can provide relief, but the overall heat and humidity call for a conservative start and regular hydration throughout.
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Race Info
Bangsaen21 is a half marathon run each December on the coast road at Bang Saen, Chon Buri Province, Thailand. The race starts before dawn in front of the Bangsaen Heritage Hotel, follows Bangsaen-Angsila Road to a turnaround at the Prayasajja Road junction and returns to the same beachfront finish. It holds a World Athletics Platinum Label, and the course records are 1:01:56 for men (Josphat Kemei, 2022) and 1:07:45 for women (Hellen Obiri, 2022). The time limit is 3 hours 30 minutes.
