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Triathlon Calendar near Lake in the Hills 2025-2026

Explore the top triathlons near Lake in the Hills for 2025-2026! We've gathered 70 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
31
Saturday

Abominable Snow Race

Obstacle Run 2 mi 5 km 10 km 20 km
February 2026
Feb
1
Sunday

St. Charles Indoor Triathlon

Triathlon
Feb
8
Sunday

Geneva Park District's Super Shuffle 5K

5 km
March 2026
Mar
14
Saturday

McHenry Kiwanis Club Shamrock Shuffle

5 km
Mar
15
Sunday

Deer Park St. Paddy's 10K Run/Walk

5 km 10 km
Mar
15
Sunday

March Madness Half Marathon

Half Marathon
April 2026
Apr
11
Saturday

Spring Chance BQ.2 Marathon

Apr
18
Saturday

Chicken Run

5 km 10 km
Apr
18
Saturday

Earth Day 50k

Trail Run 5 mi 15 mi 50 km
Apr
25
Saturday

Childish Nonsense

Trail Run 10 km 25 km 50 km 50 mi
May 2026
May
2
Saturday

Fight Hunger 10K

5 km 10 km
May
3
Sunday

Chicagoland Spring Marathon

10 km Half Marathon Marathon
May
3
Sunday

Tailwagger Trot

5 km
May
9
Saturday

Mother's Day Run/Walk - St. Charles

5 km
May
10
Sunday

Barrington Mother's Day 5K

5 km
May
16
Saturday

Ducky Dash

5 km
May
16
Saturday

Run for D103 5K

5 km
May
23
Saturday

St. Francis de Sales 5k

5 km
May
31
Sunday

North Shore Classic

5 km Half Marathon
June 2026
Jun
5-7
Fr - Su

Harvard Milk Days

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