Parsons was coached by Patrick Castagno and competed in cross country or track and field all 12 seasons. Parsons raced a personal best of 1:58 in the 800 meters, 4:12 in the mile, 9:00 in the 3200 meters, and 14:47 in the 5000 meters at New Balance Indoor Nationals. Parsons also individually qualified for Nike Cross Nationals as a senior. Parsons led his team to multiple state championships, including going undefeated during the 2012 season by winning the cross country, indoor track, and outdoor track Delaware state championships for the Tatnall School.
In 2018, Parsons traveled to Germany to visit his mother’s native country. He was hesitant to continue in track but decided to turn pro by signing a three-year deal with Adidas in 2018. Parsons teamed with Drew Hunter to found the professional running team, Tinman Elite.[4][5]
2019
In February 2019, Parsons acquired German citizenship in an attempt to qualify for the 2020 Summer Olympics in the 5000 metres.[6] At the Payton Jordan Invitational (April 2019) Parsons ran with two of his teammates (Drew Hunter and Jordan Gusman) in an attempt to meet the World Championships qualifying standard (13:22.5) in the 5,000 m. Parsons ran 13:22.32; right behind his teammates who ran 13:21. He would go on to represent Germany 5000 m at the 2019 World Athletics Championships held in Doha, Qatar. He did not advance to the final.[7]
2022
Parsons competed in the 3000 m at the 2022 World Athletics Indoor Championships, finishing seventh in his qualifying heat, not advancing to the final. In April 2022, Parsons became the first person to break 4 minutes in the mile on Delaware soil, running 3:58.17 on the track of his alma mater, Tatnall High School.[8] In May, he ran a 5000 m personal best of 13:21.17 to take tenth at the Track Meet in San Juan Capistrano, California.