Dive into an unforgettable running experience with Phoenix Running’s 'Chocothon,' where every step you take comes paired with the sweet temptation of chocolate. This unique event offers runners from all walks of life, regardless of ability or pace, a chance to enjoy a scenic route along the picturesque Thames while indulging in some delicious treats. The course itself is an out-and-back loop stretching 5.3 kilometers (or approximately 3.28 miles), offering a flat and fast terrain that hugs the river’s edge on its riverside towpath trail. Whether you decide to tackle just one lap or push yourself through multiple loops within the event's full seven-hour time limit, every runner is celebrated as both a finisher and winner. One of the standout features of Chocothon is its flexibility in start times. Participants can choose from an open hour-long window for their ideal starting point, ensuring no undue pressure if you arrive late or want to make use of early morning hours for your run. Should specific time requirements be needed beyond this range, Phoenix Running welcomes inquiries and will work diligently to accommodate. For those looking to keep costs in check while still enjoying a memorable race day experience, Chocothon introduces an innovative 'no medal' entry option priced at just £20. This allows runners access to all the event’s amenities—aid stations filled with chocolate treats, real-time results updates, digital BIBs and finisher certificates—without the cost of a bespoke medal. No matter your goal for the day—a leisurely jog, setting personal records, or simply enjoying the camaraderie among fellow participants—the 'Chocothon' offers an inclusive atmosphere where every runner's journey is respected. The event’s seventh year sees it maintaining its commitment to affordability and flexibility while continuing Phoenix Running’s reputation for delivering high-quality race experiences. With limited spots available, don’t wait too long to secure your place at this sweet celebration of running on the Thames!
Races Offered
Affiliated
Sep 27, 2026
straighten
Distance —
Affiliated
terrain
Type —
Running
timer
08:30
sell
£37.95
No Medal - Affiliated
Sep 27, 2026
straighten
Distance —
No Medal - Affiliated
terrain
Type —
Running
timer
08:30
sell
£20.00
No Medal - Unattached
Sep 27, 2026
straighten
Distance —
No Medal - Unattached
terrain
Type —
Running
timer
08:30
sell
£22.00
Unattached
Sep 27, 2026
straighten
Distance —
Unattached
terrain
Type —
Running
timer
08:30
sell
£39.95
Weather History
These values represent the 3-year monthly averages for September in Walton on Thames.
thermostatTemperature
12.0° / 20.3°
wb_sunnyFeels like
10.0° / 17.8°
light_mode
Avg sunshine hours
8h 27m
water_drop
Avg rainfall
2.5 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
13.9 km/h (Gentle breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (3.5)
humidity_mid
Humidity
77.3%
wb_twilight
Sunrise
06:37
nightlight
Sunset
19:15
About Walton on Thames
Learn more about the host city, Walton on Thames.
Walton-on-Thames, known locally as Walton, is a market town on the south bank of the Thames in northwest Surrey, England. It is in the Borough of Elmbridge, about 15 mi (24 km) southwest of central London. Walton forms part of the Greater London Built-up Area, and is served by a wide range of transport links. According to the 2011 Census, the town has a total population of 22,834. The town itself consists mostly of suburban streets, with a historic town centre of Celtic origin. It is one of the largest towns in Elmbridge, alongside Weybridge.
