Favorite memory as a golf fan was seeing Tiger Woods win the 2007 PGA Championship at Southern Hills Country Club in Tulsa, Oklahoma; he was 8 years old at the time.

Grew up a huge Oklahoma State fan and the family had football season tickets when he was growing up; he did not truly consider many other colleges and committed to Oklahoma State his freshman year of high school.

Finished No. 3 in the inaugural PGA TOUR University Class of 2021.

Played collegiately for four seasons at Oklahoma State University (2017-21), where he helped the Cowboys win the 2018 NCAA Championship as a freshman and earned All-America honors each of his final three seasons in Stillwater. Also won twice individually and logged three top-20s individually at NCAA Championships, finishing T19 in 2018 (freshman) T8 in 2019 (sophomore), and T17 in 2021 (senior).

Helped Oklahoma State win the 2018 NCAA Championship as a true freshman alongside future PGA TOUR winners Viktor Hovland and Matthew Wolff, as well as multi-time Korn Ferry Tour graduate Kris Ventura and Zach Bauchou. Fellow Class of 2022 Korn Ferry Tour graduate Sam Stevens was a senior on the 2018 national title team, but Eckroat replaced him in the starting lineup for the NCAA Regional and NCAA Championship. Eckroat went 3-0 in match play, and Oklahoma State swept an Alabama team led by future PGA TOUR winners Lee Hodges and Davis Riley in the championship round.

Played on the victorious United States team at the 2021 Walker Cup; his teammates included future PGA TOUR winner Davis Thompson and multi-time Korn Ferry Tour winner Pierceson Coody. Also represented the United States at the 2019 Arnold Palmer Cup.

Named a 2015 and 2016 AJGA Junior All-America Second Team selection. The 2015 second team also featured Sahith Theegala and Cameron Young.