Date
Sat, 29 May 2027
Start
09:00
Venue
Mansfield Outdoor Centre, 937365 Airport Rd, Mulmur, Ontario
Mansfield, Dufferin County
Countdown
May
A first ultra that is easy to size up: two 25 km laps, gentle climbing and a generous cut-off to get it done.
Key facts
0115-hour cut-off
02Two 25 km laps
03Ranked by sex and age group
Create a free training plan for the Great Mansfield Outdoors 50 km
7-day free trial, no card required
The course
One lap, on repeat
Mansfield · one lap
Distance50km
Total climb1,000m
Start · finishOne lap · elevation
0 kmDrag map to rotate22.7 km
Weather
Late-May, Mansfield
22°CTypical high
9°CTypical low
-2°CColdest in 20 years
41%Days with rain
Highs around 22°C and lows around 9°C, but it has dropped to -2°C. Rain on 41% 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
01Duras Deeks, Melanie5:21:029.3 km/h
02Bladek, Lisa5:28:099.1 km/h
03Brown, Viktoria5:37:528.9 km/h
7
Women finishers
6:11:52
Median time
8.1 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 Great Mansfield Outdoors 50 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 Great Mansfield Outdoors 50 km plan targets
Typical sessions
50 km with 1,000 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 Great Mansfield Outdoors 50 km plan.
7-day free trial, no card required.
Other races at Great Mansfield Outdoors
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