Running for Auburn University under coach Henry Rolle, he finished second in the 400 meters at the 2018 NCAA Championships behind Michael Norman of USC.

[2] His time of 43.94 ranks #17 on the all-time list, one of only 18 human beings to run the distance under 44 seconds.

Earlier in the season, Bloomfield finished second to Norman at the 2018 NCAA Indoor Championships.

Norman set the world record of 44.52 in that race, Bloomfield's 44.86 ranks him at No.

[5] Information from World Athletics profile or Track & Field Results Reporting System unless otherwise noted.