Nathan Wahle is in his 5th season on the sidelines for Wittenberg after joining the staff in 2015. In 2016, following the hire of Matt Croci as head coach, Wahle was promoted to full-time assistant coach. After two 20+ winning seasons and 2 NCAA tournament appearances in 2018 and 2019, Wahle's title changed to associate head coach heading into the 2019-20 season.

During the 2016-17 season, Wahle's 1st season as Croci's assistant, Wittenberg received national recognition for their defense as they ranked top 5 all year in points allowed (62.3 ppg). In Wahle's 2nd season under Croci, 2017-18, the Tigers jumped into the national spotlight posting a 27-3 record that included a 22-0 start, a sweep of the North Coast Athletic Conference regular season and tournament championships, and a national tournament appearance. The Tigers would go on to finish the season ranked #1 in the Great Lakes Region and ranked #10 nationally in the D3hoops.com Top 25. In 2018-19, the Tigers had another banner year as they finished the season 24-6, won the NCAC conference tournament for a 2nd straight year and finished the season again ranked #1 in the Great Lakes Region.

In terms of player development, Wahle has coached 8 All-NCAC team selections at Wittenberg: (1st Team - Chad Roy, Connor Seipel) (2nd Team: Mitchell Balser(2), Jaelin Williams, Shane Edwards) (Honorable Mention - Jake Bertemes, Cody Phillippi). The NCAC introduced a Defensive POY award in the 2016-17 season and a Wittenberg player has won it all three years it has been awarded (Mitch Balser 2019, Chad Roy 2018, Shane Edwards 2017). In addition to the all-conference selections, in 2017-18 Wahle helped in the development of Chad Roy who was named to the 2017-18 NABC 1st Team All-Great Lakes Region and the D3hoops.com All-American Team. Then in 2018-19 helped in the development of Connor Seipel who was named to the 2018-19 NABC 1st Team All-Great Lakes Region as well as named to the 2019-20 d3hoops.com Preseason All-American 2nd Team.

Before joining the Tigers, Wahle spent two seasons in Nebraska as the assistant men's basketball coach at Doane University. While at Doane, he served as the recruiting coodinator, the guard development coach and the team's defensive coach.

Prior to Doane, Wahle was the varsity assistant boys' basketball coach at Maumee High School, near Toledo, Ohio. He served as an assistant coach at Maumee while attending Bowling Green State University, where he also was the team manager for the men’s basketball team under coach Louis Orr.

Wahle graduated from BGSU in 2013 with a bachelor's degree in sport management. He currently resides in Columbus, OH with his wife Kay and son Mic.