The 5-foot-10, 125-pound senior won the KSHSAA 5A individual state championship this past season, breaking the tape with a time of 15:33.9 and leading the Saints to the state team title. The Greater Kansas City Cross Country Coaches Association Runner of the Year, Marshall finished 20.4 seconds in front of his next-closest competitor with the fastest all-class time of the day at the state meet. He crossed the line 12th as the top Kansas runner at the Nike Cross Nationals Heartland Regional championships, clocking a 15:32.50, and was also the top finisher from Kansas at the Foot Locker Midwest Regional championships (32nd, 16:54.80).
Marshall has maintained a 3.91 GPA in the classroom. He remains undecided on a collegiate destination.
Nominated for an appointment to the United States Air Force Academy, Marshall has attended an invite-only, week-long Rotary Youth Leadership Award Camp at the University of Kansas. A devoted member of his Holy Trinity Catholic Church community, he has volunteered locally sorting clothing and unloading vehicles on behalf of TurnStyles Thrift Store as well as for Penn House, a community service organization. He has also donated his time to the Kansas City Heroes charity in addition to packaging food and health-related goods for the Harvesters Community Food Network, which serves the needy. A past participant in Boy Scouts service projects which built shelves at an area school and assisted in a blood-donation drive, he has also moved equipment and painted for Christ Our Savior Middle School.