The Fancy Nonsense 25k/50k returns to Willow Springs in Illinois on October 24th, offering a whimsical running experience along the trails of Deer Grove Forest Preserve. This year’s event marks its relocation due to ongoing renovations at Palos Forest Preserves from August through December, ensuring runners can enjoy uninterrupted single-track paths and rolling terrain within a scenic woodland setting.
25K 25K • Start: 08:00:00 • Fee: $50.00
5 Miler 8K • Start: 08:00:00 • Fee: $25.00
50K 50K • Start: 08:00:00 • Fee: $80.00
Race morning in Willow Springs typically greets participants with crisp autumn air typical for late October. Temperatures hover around 13.7 degrees Celsius on average, ranging between early mornings of 9.1°C to midday highs of up to 18.2°C by the afternoon sun. The trail conditions are firm and slightly soft underfoot, providing a challenging yet runnable surface throughout both distances. Established as part of CUSS (Curious Ultrarunner's Secret Society), this event aims to foster joy and laughter among runners while testing their physical endurance over 5.5-mile loops through Deer Grove Forest Preserve. The Fancy Nonsense series has been growing in popularity since its inception, drawing a community that embraces the spirit of adventure and imagination on these trails. The course for both the 25k and 50k routes is set within the Palos Trail System near Red Gate Woods. Runners will navigate mostly single-track paths with aid stations spaced appropriately to provide essential supplies such as water, soda, snacks, and even doughnuts along the way. Cut-off times are strictly enforced for both races at 5pm. To register online, participants should visit https://ultrasignup.com/register.aspx?did=131599 before September 15th to secure a guaranteed race shirt. Packet pickup on event day is scheduled from 7:00am-8:45am for both distance groups at Red Gate Woods in Willow Springs, where runners will receive their fully marked course maps and pre-race briefings. Starting lines are set up within Deer Grove Forest Preserve near the Palos Trail System’s main trailhead. For first-time attendees, it is recommended to arrive early on race morning with proper gear suited for cooler temperatures and variable weather conditions common in late October Illinois. The Fancy Nonsense 25k/50k takes place in Willow Springs, IL, on October 24th, inviting runners of all backgrounds into a unique blend of physical challenge and whimsical adventure within the Deer Grove Forest Preserve.
Races Offered
25K
Oct 24, 2026
straighten
Distance —
25K
terrain
Type —
Running
timer
08:00
sell
$50.00
5 Miler
Oct 24, 2026
straighten
Distance —
8K
terrain
Type —
Running
timer
08:00
sell
$25.00
50K
Oct 24, 2026
straighten
Distance —
50K
terrain
Type —
Running
timer
08:00
sell
$80.00
Weather History
These values represent the 3-year monthly averages for October in Willow Springs.
thermostatTemperature
9.1° / 18.2°
wb_sunnyFeels like
5.9° / 15.1°
light_mode
Avg sunshine hours
8h 16m
water_drop
Avg rainfall
2.0 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
13.2 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.0)
humidity_mid
Humidity
67.1%
wb_twilight
Sunrise
07:05
nightlight
Sunset
18:08
About Willow Springs
Learn more about the host city, Willow Springs.
Willow Springs is a village in Cook County, Illinois, United States, with a small portion extending into DuPage County. The village was founded in 1892 and was named for the springs along the Des Plaines River. In 2020, the population was 5,857.