Tarrywile Half Marathon
Nov 15Danbury, CTMarathon, Half Marathon +1
Also a half marathon, 26 mi from Castle to River Run, registration open
Half Marathon5KRegistration open
Castle to River Run
Garrison, New York
- Entry from
- $45
- Aid stations
- 2
- Days to go
- 19
At a glance
- Date
- Oct 25, 2026
- Location
- Garrison, New York
- Distances
- Half Marathon, 5K
- Elevation gain
- 2,037 ft
- Aid stations
- 2
- Registration
- Registration open until Oct 24, 2026, via ultrasignup.com
- Official site
- castletoriver.com
- Listed from
- UltraSignup
- Last checked
- Oct 5, 2026
Plan this race for free
2 aid stations are already loaded. Add cutoffs, pacing and the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planAbout this race
Castle to River Run includes a half marathon, 5K, and kids run in the Hudson Highlands around Garrison, New York. The half marathon travels through trail terrain near Osborn's Castle and toward the Hudson River, while the 5K follows a shorter loop suitable for runners, walkers, and hikers.
Key dates
- Until July 31 ends
Jul 31, 2026
- August 1 to September 30 ends
Sep 30, 2026
Registration closes
Oct 24, 2026
- October 1 to October 24 ends
Oct 24, 2026
Race day
Oct 25, 2026
Pricing
Half Marathon
- October 1 to October 24, then $75 from Oct 25, 2026
$65
5K
- October 1 to October 24, then $50 from Oct 25, 2026
$45
Kids Run -
$5 from Oct 25, 2026
See registration
Email me updates about Castle to River Run
Registration openings and major changes, like a new date or a cancellation.
Aid stations
2| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
Half Marathon aid station The single aid station is accessed twice during the half marathon while runners complete a short loop. Gels are not provided. | 5.50 miles | -- | watersports drinkfruitother carbs | ||
Half Marathon aid station The single aid station is accessed twice during the half marathon while runners complete a short loop. Gels are not provided. | 8.00 miles | -- | watersports drinkfruitother carbs |
Entry transfers
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
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Race planning
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