A cool 49°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 58°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. High humidity (83%) will make it harder to cool down through sweat — increase fluid intake accordingly.
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Race Info
The Amsterdam Marathon (branded TCS Amsterdam Marathon for sponsorship reasons) is an annual marathon (42.195 km) in Amsterdam in the Netherlands since 1975. The road race has a Platinum Label from World Athletics. During the event, there are also a half marathon race (21.097 km) and an 8 km race in the program.Wikipedia