About the 18th Annual F^3 Lake Half Marathon & 5k
The course runs along the lakefront, exposed to whatever winter throws at it, wind included. Runners start inside Soldier Field's United Club, which gives you a warm place to wait and drop gear before heading out. The out-and-back shape along the water is straightforward, but in cold conditions it earns its reputation as a genuine weather race.
Gear check is inside the stadium, so you can shed layers before the start. After finishing, the afterparty moves to a nearby tavern on Michigan Ave, a practical choice given the temperature most years.
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Distances & Start Times
13.1 Miles1/30/2027 10:01$90
5K1/30/2027 10:29$59
Going for a Time?
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
Not sure what to aim for? The half marathon pace chart lists the pace for every finish time.
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