Marion shot rounds of 71-68-70 to finish 7-under and win by four shots over Greg Sanders, who finished at 4-under.
Only Marion, Sanders, and Rob Nelson, who finished in solo third place at 1-under, finished under par for the Championship.
Trevor Quickel won the Men's Gross Division at 18-over, and Michael Fierro finished first in the Men's Net Division.
In the Women's Championship Division, Danica Schmidt won with a final score of 28-over after defeating Toyoko Hawkins in a playoff. Hawkins finished in solo second place, and Keira DeLand finished in solo third place at 31-over.
Abigail Ante and Mindy Stefanski finished in fourth and fifth place.
Stefanski won the Women's Net Division at 2-under, the only golfer finishing under par.
