Larry "Mace" Mason, a 1973 graduate of Morningside and one of the most successful players in the history of the college's tennis program, moves into a new role as an assistant coach for the men's and women's programs. Mason had been the head coach of both teams from 2008-17 and other points during his coaching career.

He sported a 98-69 career record in 10 seasons as the Mustangs' head women's tennis coach. Mason led the Mustangs to six consecutive winning seasons, including a 53-17 record for a .757 winning percentage over his last four campaigns.

Mason guided the Mustangs' men's and women's teams to record-breaking success in the 2016-17 season when the men posted a 14-9 record and the women finished 15-4 to set school records for victories in a season. He was named the 2016 Hauff Mid-America Sports/GPAC Women's Tennis Coach of the Year after he guided the Mustangs to one of their greatest seasons in school history. Morningside posted a 13-3 record to set a school record with a .813 winning percentage and won GPAC regular season and post-season tournament championships en route to its second appearance in the NAIA Women's Tennis National Championship in a three-year stretch.

Mason was also named the 2014 GPAC Women's Tennis Coach of the Year when the Mustangs had a 12-5 record and won their first-ever GPAC regular season and post-season tournament championshps to qualify for the NAIA National Tournament for the first time in school history.

Mason led the Mustangs to new heights during the 2011-12 season when both the men's and women's teams reached the championship round of the GPAC's post-season tournament for the first time in school history. Mason was named the 2012 GPAC Women's Tennis Coach of the Year after he led the Mustangs to a 14-7 record and a runner-up finish in the GPAC regular season standings.

Mason played No. 1 singles all four years of his Morningside career. He compiled a 32-16 record in singles to set a school record for singled victories. Mason had a 27-18 record in doubles and 59 combined victories to set school records in both categories. He posted singles records of 9-4 as a junior and 9-5 as a senior. Mason and Russ McComsey teamed up for an 11-2 doubles record in 1973 to set a school record for doubles victories in a season.

After his graduation, Mason was the head tennis coach at Morningside for 1974, 1975, and 1976 seasons. He became head boy's tennis coach at Sioux City North High School in 1977. Over the next 21 years he guided the Stars to a 192-58 record in dual meets. His teams won 19 city championships and nine conference championships. He coached 69 state meet qualifiers and 18 state meet place winners, including former Mustang coach Mike Inman, who became Sioux City's first state singles champion in 1979. In state team competition, Mason guided North to 13 substate berths, four appearances in the state semifinals, and to a state runner-up finish in 1993. He had a 20-8 record in three seasons as North's head girl's tennis coach.

In 1999, he was certified as Professional 1 (the highest certification) by the United States Professional Tennis Association. Mason also received the M-Club Coach of the Year award in 1979 and was inducted into the M-Club Hall of Fame in 1983. He played his high school tennis at Sioux City Central, where his coach was M-Club Hall of Famer Herrold Asmussen.