Date
Sat, 27 Mar 2027
Start
07:00
Venue
North Fork Trailhead parking lot, Clinton Lake State Recreation Area, DeWitt, Illinois
Clinton Lake State Recreation Area, DeWitt, Illinois
Countdown
March
Three laps of the same 10-mile loop, and the clock keeps you honest. A small, long-running field, with a gentle 457 m of gain a lap.
Key facts
01Start lap three by 12:15 and stay ahead of the sweep
02Volunteering is mandatory; the listing sets no fixed hours
03No cups, pacers or early starts
Create a free training plan for the Clinton Lake Ultra 48 km
7-day free trial, no card required
The course
One lap, on repeat
Clinton Lake State Recreation Area · one lap
Distance48km
Total climb457m
Start · finishOne lap · elevation
0 kmDrag map to rotate15.1 km
Weather
Late-March, Clinton Lake State Recreation Area
13°CTypical high
1°CTypical low
-9°CColdest in 20 years
38%Days with rain
Highs around 13°C and lows around 1°C, but it has dropped to -9°C. Rain on 38% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Renee White05:13:439.2 km/h
02Jennifer Scheele06:05:007.9 km/h
03Julie Stalets06:07:007.9 km/h
9
Women finishers
7:10:15
Median time
6.7 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserSecond Wind Running Club (race director: Mark Kirkland)
Running since2007
Training
Training for the Clinton Lake Ultra 48 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 Clinton Lake Ultra 48 km plan targets
Typical sessions
48 km with 457 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 Clinton Lake Ultra 48 km plan.
7-day free trial, no card required.
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