Date
Sat, 10 Jul 2027
Start
07:00
Venue
Start: Field Farm, Shirburn Road, Lewknor, Watlington, Oxfordshire
Lewknor, Oxfordshire
Countdown
July
The first half of the route, done in a day. Lewknor to the Lattin Down basecamp, with modest climbing, and you are finished by Saturday evening.
Key facts
01Minimum age 18 on the first day of the event
02Point-to-point: you finish at Lattin Down basecamp, not at the start
Create a free training plan for the Race to the Stones: Day One – Thames Valley 50K
7-day free trial, no card required
The course
The route
Lewknor
Distance50km
Total climb601m
StartElevation
0 kmDrag map to rotate49.3 km
Weather
Early-July, Lewknor
22°CTypical high
12°CTypical low
7°CColdest in 20 years
39%Days with rain
Highs around 22°C and lows around 12°C, but it has dropped to 7°C. Rain on 39% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01COLLIE William4:00:1912.5 km/h
02ARIMOTO Ryoki4:03:4012.3 km/h
03LANGFORD Nathan4:05:4312.2 km/h
292
Finishers
7:48:24
Median time
6.4 km/h
Median speed
Overall · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserThreshold Sports Ltd
Websitethresholdtrailseries.com
Instagram@thresholdtrailseries
Running since2013
Training
Training for the Race to the Stones: Day One – Thames Valley 50K
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 Race to the Stones: Day One – Thames Valley 50K plan targets
Typical sessions
50 km with 601 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 Race to the Stones: Day One – Thames Valley 50K plan.
7-day free trial, no card required.
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