DateExpected
Late October 2026
Based on past editions. We'll confirm when the organiser announces.
Venue
Philipstown Recreation Department, 107 Glenclyffe Drive, Garrison, NY 10524
Garrison, Putnam County
Countdown
October
The short, friendly way into the day: a gentle 5 km trail loop with barely any climbing, made for runners, walkers and hikers of every level.
Key facts
01No cut-off, go at your own pace
02No aid station, so carry water if you want it
03All abilities welcome, walkers and hikers included
Create a free training plan for the Castle to River Run 5 km
7-day free trial, no card required
The course
The route
Garrison
Distance5km
Total climb94m
StartElevation
0 kmDrag map to rotate5.2 km
Weather
Late-October, Garrison
16°CTypical high
5°CTypical low
-6°CColdest in 20 years
32%Days with rain
Highs around 16°C and lows around 5°C, but it has dropped to -6°C. Rain on 32% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Emily Loftus00:26:0711.5 km/h
02Devi Ganti00:26:1611.4 km/h
03Taylor Farrell00:27:2710.9 km/h
41
Women finishers
0:42:56
Median time
7.0 km/h
Median speed
Women · 2025 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Castle to River Run 5 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Castle to River Run 5 km plan targets
Typical sessions
5 km with 94 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Castle to River Run 5 km plan.
7-day free trial, no card required.
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