| Time | Date | Name | Meet |
|---|---|---|---|
| 1:10.71 | March 9, 2024 | Blake Peters | MA 10&Under Championship |
| 1:11.68 | April 6, 2019 | Jack Ketchum | Eastern Zone Championships |
| 1:14.56 | Dec. 16, 2018 | Jack Ketchum | MA LAC Speedo Holiday Cup |
| 1:17.22 | Dec. 2, 2018 | Jack Ketchum | MA MSA Robert Hornsleth Memorial |
| 1:18.01 | Nov. 4, 2018 | Jack Ketchum | MA CYA Fall A-BB-C Invitational |
| 1:18.17 | Oct. 28, 2018 | Jack Ketchum | MA ACWS Spooky Splash Inv |
| 1:24.07 | Oct. 29, 2017 | Jack Ketchum | MA NLAC Fall Kick Off |
