Birthday: 04/13/98 Mile PR: 4:27 - 2021 (road)
Metric Mile (1500m) PR: 3:58.85 - 2022
High School: Lake Brantley High School '16
Hometown: Longwood, FL
College: Oklahoma State '19
Current Residence: Portland, OR
Team: Union Athletics Club
Sinclaire Johnson finished runner-up at the 2023 USA Road Mile Championship hosted by the Grand Blue Mile in Des Moines, clocking 4:28.7 (4:29 official).
In 2022, she finished 6th in the 2022 World Championships 1500m, breaking the beam in 4:01.63. In June, she won the USA 1500m crown, with a sub-60 second final lap, in 4:03.29, her first USA title, and also earning her first Team USA World Championship berth. Earlier in May, the rising star finished 4th in the Prefontaine Classic 1500m, setting a personal record of 3:58.85, her first sub-4 and #7 U.S. woman all-time.
In 2021, Sinclaire won the Fleet Feet Liberty Mile in Pittsburgh with an event record shattering 4:27.
At Oklahoma State, Johnson, her junior year, captured the 2019 NCAA 1500m crown, clocking a meet record 4:05.98. In late July 2019, she finished 4th at the USA Outdoors Championships 1500m (4:03.72) and in August 2019, she turned pro.
At Lake Brantley High School, she won 5 Florida state track titles (3 = 800m and 2 = 1600m).