Every upcoming 10K around Key Biscayne, with start times, entry fees, finish-time stats from past editions, start-line maps, and the local run clubs to train with.
30 upcoming 10K races found · 1 with finish-time stats
Key Biscayne running is defined by the William Powell Bridge climb out of the causeway and the long, open miles of the Rickenbacker Trail with Biscayne Bay on both sides. Triathletes, cyclists, and runners share the same ribbon of pavement in the early hours, while Crandon Park and Bill Baggs Cape Florida State Park offer softer ground around the lighthouse and No Name Harbor.
Mild, dry winters draw people out for longer efforts without the full force of Miami's tropical heat, but fall is when the race calendar fills up most - and nearly every start line here puts you within reach of that causeway, the parks, or both. Expect company whether you go early or late; this island does not have a quiet season.
By the numbers
The Biggest and Longest-Running
The Key Biscayne races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Common Questions About Running a 10K in Key Biscayne
What does a 10K finish time look like at these races?
Only 1 race here has published finish-time results. Run For Recovery, with a field of 38 finishers, recorded a median finish time of 40:40 for its 10K. That is the only measured figure we have for Key Biscayne 10Ks, so treat it as a single data point rather than a picture of the whole field.
What do these races cost, and will prices go up if I wait?
Every race here is priced at $30. None of them have a price increase currently scheduled, so registering now or closer to race day should cost you the same either way.
Do these races give out shirts or medals?
All 29 races say they give a shirt. None of them say they give a medal - though that means they have not mentioned one, not necessarily that there is none.
When is the best time of year to find a 10K in Key Biscayne?
Fall is the busiest stretch, with 13 races running September through November and October alone having 5 on the calendar. If your training block lands in winter, there are still 10 races December through February, which is also when Key Biscayne's drier, cooler mornings make the exposed causeway and park routes most comfortable to race.
Can I step down to a 5K or up to a half marathon at these races?
Most events here offer all three distances on the same day. Of the 29 races, 29 offer a 5K, 29 offer a 10K, and 28 offer a half marathon, so you have real flexibility to adjust your distance right up to race day at nearly every event on the calendar.
Are there trail 10K races near Key Biscayne?
Yes, one race around Key Biscayne gets you off the pavement: 1 mixes road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.
