Available distances
About
March Madness Half Marathon is held in Cary, Illinois, on March 14, 2027, with a single distance, the half marathon (13.1 miles), starting at 8:35 AM. The USATF-certified course is known as the hardest race in northern Illinois and one of the toughest halves in the Midwest, with relentless hills from start to finish and a strict three-hour cutoff.
This is not the place for a personal best, and the serious runners who show up are mostly using it as a hard rehearsal for spring marathons. Prepare by putting hills into your long runs rather than saving them for race day, and go out slower than your flat-course half pace so the closing miles remain runnable. Local support and precise organization make it a no-frills, high-quality race: no distractions, just hills, grit and the effort itself.
Prepare for March Madness Half Marathon with RunRun
An AI-generated training plan, adjusted every week based on your real sessions. Built around your goal, current level and race date.
- Personalized plan based on your VO2max, history and weekly availability
- Strava and Garmin sync: your sessions are analyzed and the plan adapts
- Target paces, long runs, key sessions: everything is calculated for race day
Races nearby
Other upcoming races around Cary.
Thin Mint Sprint - Fox River Grove, IL
Sep 12, 2026 · Fox River Grove, IL · 2 mi away
3.1 mi · 1 mi
Sunbeams Uganda 5K
Sep 19, 2026 · Crystal Lake, IL · 4 mi away
3.1 mi
Moraine Hills Run for the Hills 10K and Half Marathon
Sep 26, 2026 · Moraine Hills State Park, McHenry, IL · 7 mi away
13 mi · 6.2 mi · 3.1 mi
9/11 Heroes Run - Chicago, Illinois
Sep 12, 2026 · South Barrington, IL · 9 mi away
3.1 mi
Spartan Sprint 5K & Family Fun Run
Sep 20, 2026 · Elgin, IL · 12 mi away
3.1 mi
Long Grove's Prairie State Half Marathon, 10K & Oktoberfest 5K
Oct 3, 2026 · Long Grove, IL · 12 mi away
13.1 mi · 6.2 mi · 3.1 mi