BOISE, Idaho — A river of runners, walkers, and strollers flowed through downtown Boise on Saturday morning for the 2019 St. Luke's FitOne event.

St. Luke's Health System spokeswoman Anita Kissee says 12,710 signed up. Race events included a 5K, a 10K and a half-marathon. Of those, about 5,000 participated in the 13.1-mile half-marathon.

FitOne founder Anne Audain says the number of entrants for this year set a record.

"That's really a credit to St. Luke's and (executive director) Eric (Stride) and the team that it all worked so well," Audain said. "To be honest, in the running world, to get that many to keep coming back and for it to grow -- that's quite an accomplishment."

FitOne Boise raises funds for St. Luke's Children's Hospital and projects designed to help promote healthy lifestyles for people of all ages. 

KTVB staff were among those tweeting from the race -- a blog of those tweets is below. Mobile users, tap here.

RELATED: St. Luke's FitOne to take over downtown Boise September 26-28

Here's the breakdown of all the races: 

5K

FitOne offers several 5K waves starting at 9:30 a.m. in front of the Idaho Statehouse at the intersection of Capitol Boulevard and Bannock Street on Saturday, September 28. You must be at the start wave by 9 a.m. The race ends in Ann Morrison Park.

  • Red Wave: Competitive Run
  • Green Wave: Competitive Stroller Division
  • Fit & Fun Blue Wave: Non-Competitive Run or Walk - No Wheels, baby joggers or strollers
  • Fit & Fun Purple Wave: Non-Competitive Run or Walk – No wheels, baby joggers or strollers
  • Family Orange Wave: Non-competitive Family/Stroller/All Wheels Division

10K

The FitOne 10K also begins in downtown Boise. The start signal is at 7:30 a.m. Participants need to be at their assigned corral by 7:20 a.m. Strollers are allowed. The race ends in Ann Morrison Park.

Half Marathon

The FitOne half marathon starts at Capitol and Bannock at 7:15 a.m. Participants need to be in place by 7 a.m. The race ends in Ann Morrison Park.

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