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Castle to River Run
TrailUnited StatesNew York

Castle to River Run 2026

25.10.2026Garrison (United States)
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Pacing, fueling and crew sheet for the course you pick

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6212’037 m D+ ft D+

21.1 km13.1 mi1/2 Marathonlongest of 2 courses

At a glance

Castle to River Run 2026 took place on Sunday 25 October 2026 in Garrison (New York, United States). Two distances to choose from: 5 and 21.1 km.

Longest course: 1/2 Marathon, 21.1 km with 621 m D+ (29 m per km: hilly terrain).

The 2027 edition is expected on Sunday 24 October 2027, date to be confirmed by the organiser. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

A trail race in the Hudson Valley featuring a Half Marathon and 5K, running through Hudson Highlands State Park from Osborn's Castle to the Hudson River.
From the organiser

2 courses

  1. 5km3.1mi

    94 m D+308 ft D+

    avg 2%

    5K
    No index

  2. 21.1km13.1mi

    621 m D+2’037 ft D+

    avg 3%

    1/2 Marathon
    No index

GPX trace not yet published.

Race plan

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Pacing, aid stations and fueling timed to your effort on Castle to River Run, in one roadbook.

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Start

Garrison (United States)

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