| M | NHIAA Division III Championships | 45.13 | Alex Curtis | White Mountains | 2016 |
| S | NHIAA State Records | 43.54 | Corinne Kennedy | Lebanon | 2014 |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | PRAK, Madelin | SO | Kearsarge | 55.13 | Kearsarge %234 |
| 2 | LIGNOS, Sierra | SO | Portsmouth Christian | 54.88 | Oyster River |
| 3 | MESSER, Bristol | FR | Kearsarge | 54.85 | Kearsarge %234 |
| 4 | PINCINCE, Becca | SR | Somersworth | 52.79 | Oyster river |
| 5 | PAUL, Stacia | FR | Newfound Regional | 52.84 | Berlin |
| 6 | PERRY, Julia | SR | Newmarket | 54.87 | Oyster River |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | SHAGENA, Abigail | SR | Bishop Brady | 52.70 | MV - FAT |
| 2 | EDOKPOLO, Feranmi | JR | Trinity | 52.54 | Central |
| 3 | BRALEY, Autumn | SR | Newfound Regional | 50.54 | Prospect Mountain |
| 4 | BATES, Eliza | SR | Newport | 48.34 | Newpoert Home 2 |
| 5 | ALLEN, Tori | SR | Campbell | 49.54 | Pelham |
| 6 | PELCHAT, Gwen | JR | Berlin | 51.72 | Berlin FAT |