2003 Pioneer Roster
| No | Name | Pos. | B/T | Yr. | Hometown (High School) |
| 1 | Andrea Krall ** | 2B | R/R | Jr. | Denmark, WI |
| 2 | Alexis Thoms | P | R/R | Fr. | Lakeville, MN |
| 3 | Jenni Madden | IF | R/R | So. | Cambridge, WI |
| 4 | Jessica Seligmiller | 3B | R/R | Fr. | Bristol, WI (Waterford) |
| 5 | Jenny Burke * | C | R/R | Jr. | North Fond du Lac, WI (Horace Mann) |
| 7 | Amy Gill * | OF | R/R | Jr. | Albany, WI |
| 8 | Abby Lalko | OF | R/R | Fr. | Appleton, WI (West) |
| 9 | Jen Kilian *** | OF | R/R | Sr. | Platteville, WI |
| 10 | Stacey Yager * | OF | R/R | So. | Lancaster, WI |
| 11 | Chrissy McCauley * | SS | R/R | So. | North Fond du Lac, WI (Horace Mann) |
| 12 | Samantha Shotliff | IF | R/R | So. | Belmont, WI |
| 13 | Laura Brown * | 3B/1B | R/R | So. | Glen Ellyn, IL (Glenbard West) |
| 14 | Jodi Barrett | 3B/1B | R/R | Fr. | Camp Douglas, WI (New Lisbon) |
| 15 | Heather Wotruba | OF | R/R | So. | Maribel, WI (Denmark) |
| 16 | Katie Smith | P/OF | R/R | Fr. | East Troy, WI |
| 17 | Wendi Siedschlag * | C | R/R | So. | Monroe, WI |
| 18 | Kris Purkapile | OF | R/R | Fr. | Evansville, WI |
| 19 | Terri Sorg | 2B | R/R | Fr. | Spring Green, WI (Sauk Prairie) |
| 20 | Katie Larson | P | R/R | Fr. | South Wayne, WI (Black Hawk) |
| 21 | Jen Osterhaus | IF | R/R | Fr. | Eastman, WI (Prairie du Chien) |
| 22 | Michelle Skaden *** | C | R/R | Sr. | Lewiston, MN (Lewiston-Altura) |
| 23 | Ashley Meinholz | C | R/R | Fr. | Cross Plains, WI (Middleton) |
| 24 | Steph Wood ** | P | R/R | Jr. | Van Dyne, WI (Horace Mann) |
| 25 | Amie Stark | 1B | R/R | Fr. | Platteville, WI |
| 26 | Sam Walters | C/OF | R/R | Fr. | Wausau, WI (Newman) |
| 27 | Katie Gelhar | IF | R/R | So. | Madison, WI (Memorial) |
| 28 | Ashley Leibold | P/3B | R/R | Fr. | East Dubuque, IL |
| 29 | Ashley Strnad | C | R/R | Fr. | Prairie du Chien, WI |
| 32 | Erika Kiesling | SS | R/R | So. | Belleville, WI |
| Danielle Burg | C/IF | R/R | Fr. | Oconomowoc, WI (Hartland Arrowhead) |
*=Number of letters earned at UWP
Head Coach: Janet James
Assistants: Tina Kuhle, Vinnie Rako