Former head coach of the Simpson men's golf team, Jason Marvelli begins his first season as a volunteer assistant for the Storm in 2016-17. Prior to that, Marvelli served as head coach for eight seasons, from 2009-2016.

Marvelli won Iowa Conference co-Coach of the Year honors in 2013, the first men's golf coach in school history to win the award. His final season at Simpson may have been his best, as he led the Storm to a third-place finish at the 2016 Iowa Conference Championship and coached Trent Lindenman to medalist honors. The third-place finish was the best by a Simpson team since 2007 and Lindenman became the program's first conference champion since 2003.

In all, Simpson coached five all-conference golfers.

Since 2004, Marvelli has served as the head PGA professional at the Indianola Country Club, a role in which he continues while at Simpson.

Marvelli played collegiate golf at Indian Hills Community College (1990-92) and at NCAA Division I University of Missouri-Kansas City (1993-94), serving as team captain as a sophomore at Indian Hills and as a senior at UMKC. Marvelli was elected to the PGA in 2001. He was a 2002 Northern Club Pro Qualifier and a member of the Iowa Cup team in 1992 as an amateur and in 2003 as a professional. As a prep, Marvelli won the 1990 Class 4A State Championship at Newton High School.

In a 2007 study conducted by Golf Digest, a Marvelli-taught golfer was named the most improved in the state of Iowa after shrinking her handicap 6.6 points in only seven months. The study, which appeared in an article in the May 2008 issue of Golf Digest, revealed that 1986 Simpson graduate Cindy Morrison of Indianola earned the title of most improved female golfer in Iowa after her handicap improved from 15.9 to 9.3 under Marvelli’s instruction.