[3] Ledgister was a finalist at the 2018 World Under-20 Championships in the 400m hurdles finishing fourth in Tampere, Finland in a personal best time of 49.93.

[4] On 30 May 2021 he achieved the 400m hurdles Olympic qualifying standard for the delayed 2020 Tokyo Olympics after he ran a personal best 48.79 seconds to place second at the National Collegiate Athletics Association (NCAA) West Regionals at his home track of Texas A&M University in College Station, Texas.

[5] In June, 2021 he advanced to the finals of the 400m hurdles at the 2021 NCAA Outdoor Championships at Hayward Field, Eugene, Oregon, finishing sixth overall.

[6] Ledgister had a disappointing run at the Jamaican Olympic trials where he was the fastest man in the field but did not get past the semi-finals, finishing eighth in his race.

[7] Ledgister was subsequently named as a reserve in the Jamaican squad for the Tokyo Olympics, however was unable to compete at the event.