| Pl | Athlete / entry | Gr | School / team | Mark |
|---|---|---|---|---|
| 1 | AberdeenPlace 1 · Aberdeen | — | Aberdeen | 46.80a |
| 2 | YanktonPlace 2 · Yankton | — | Yankton | 48.19a |
| 3 | YanktonPlace 3 · Yankton | — | Yankton | 50.53a |
| 4 | MitchellPlace 4 · Mitchell | — | Mitchell | 52.01a |
| 5 | MitchellPlace 5 · Mitchell | — | Mitchell | 1:01.70a |
| — | Aberdeen · Aberdeen | — | Aberdeen | DQ |
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