A lightning delay halted the game early in the first half but the Storm (4-2-1) put it together in the second half, scoring three of their four goals.
Idehen struck for the first time shortly after the delay ended to give Simpson a 1-0 lead. The scored remained that way until the 54th minute when Brendan Owings converted a penalty kick, his second of the season. Three minutes later, Idehen found the back of the net again for the first multi-goal game of his career. Spencer Young rounded out the scoring in the 87th minute with his team-leading third goal of the season.
The American Rivers Conference Defensive Player of the Week, Potratz made six saves in the shutout. He lowered his goals against average 0.84, tops in the league.
- Simpson held a commanding 20-10 advantage in shots and took five corner kicks to Grinnell's four.
- With his sixth career shutout, Jake Potratz moves into sixth on Simpson's career list. His 17 career wins are also sixth all-time.
- The Storm improved to 9-6-1 all-time against Grinnell, including a mark of 5-1-1 under eighth-year head coach Rick Isaacson.
Simpson opens American Rivers Conference play at Central on Saturday, Sept. 22. Start time is set for 3 p.m. in Pella.