| Player | ERA | W | L | IP | H | R | ER | BB | SO | B/Avg | |
| Peoples Tony | Walcott IA Lampliter Inn | 0.70 | 3 | 0 | 20 | 7 | 3 | 2 | 5 | 32 | .106 |
| Koehler, Tony | Bowen IL Ramsey Financial | 3.23 | 3 | 2 | 26 | 20 | 16 | 12 | 4 | 10 | .204 |
| Bahr, Scott | Oelwein IA Kife of Iowa | 2.50 | 2 | 0 | 14 | 11 | 5 | 5 | 6 | 16 | .208 |
| Gonzalez, Martin | Aurora IL Dolan & Murphy | 2.10 | 2 | 0 | 16.2 | 12 | 8 | 5 | 7 | 23 | .194 |
| Reynolds, Ray | Rockford IL Black Hawk Athletic Club | 1.17 | 2 | 0 | 12 | 8 | 2 | 2 | 3 | 21 | .186 |
| Gollan, Karl | Des Moines IA McCuen's Pub | 0.95 | 2 | 0 | 22 | 17 | 3 | 3 | 0 | 39 | .207 |
| Kronk, Marshall | Winterset IA Winterset A's | 1.00 | 2 | 1 | 21 | 6 | 3 | 3 | 5 | 39 | .088 |
| Jetmar, Ales | Aurora IL Dolan & Murphy | 1.14 | 2 | 2 | 24.2 | 11 | 9 | 4 | 7 | 40 | .133 |
| Beadle, Paul | Walcott IA Lampliter Inn | 3.50 | 1 | 0 | 4 | 3 | 2 | 2 | 1 | 4 | .214 |
| Zink, Dean | Galena IL Dillon's NP | 1.40 | 1 | 0 | 5 | 4 | 1 | 1 | 2 | 9 | .200 |
| Ralfs Jr., Jerry | Walcott IA Lampliter Inn | 0.00 | 1 | 0 | 5 | 0 | 0 | 0 | 0 | 5 | .000 |
| Arp, Dave | Walcott IA Walcott Merchants | 6.22 | 1 | 1 | 9 | 12 | 8 | 8 | 3 | 8 | .316 |
| Crouch, Joe | Des Moines IA McCuen's Pub | 4.45 | 1 | 1 | 11 | 14 | 7 | 7 | 4 | 13 | .298 |
| Carillo, Hank | Davenport IA Silver Bullets | 7.41 | 1 | 2 | 17 | 30 | 23 | 18 | 0 | 8 | .361 |