| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 2:03.88 | Jack Frost 2025 | 2025-10-24 |
| 100m Breaststroke | 1:58.38 | 2026 Pronghorn Classic | 2026-03-13 |
| 100m Butterfly | 2:04.45 | Sandy Ferris Age Group Food Bank Challenge 2025 | 2025-12-19 |
| 100m Freestyle | 1:42.77 | 2025 KSC SC Invitational | 2025-11-21 |
| 100m IM | 1:53.72 | Mountain Madness 2025 | 2025-10-18 |
| 200m Backstroke | 4:10.47 | Maverick Madness 2026 | 2026-01-30 |
| 200m Breaststroke | 4:17.83 | 2025 KSC SC Invitational | 2025-11-21 |
| 200m Freestyle | 3:50.17 | Sandy Ferris Age Group Food Bank Challenge 2025 | 2025-12-19 |
| 200m IM | 4:01.17 | UCSC February Invitational | 2026-02-21 |
| 25m Butterfly | 23.35 | Jack Frost 2025 | 2025-10-24 |
| 400m Freestyle | 7:54.07 | 2025 KSC SC Invitational | 2025-11-21 |
| 50m Backstroke | 53.42 | Mountain Madness 2025 | 2025-10-18 |
| 50m Breaststroke | 52.84 | Mountain Madness 2025 | 2025-10-18 |
| 50m Butterfly | 52.99 | Maverick Madness 2026 | 2026-01-30 |
| 50m Freestyle | 43.92 | Mountain Madness 2025 | 2025-10-18 |
Keyser, Theodore's top personal bests include 100m Backstroke (2:03.88), 100m Breaststroke (1:58.38), 100m Butterfly (2:04.45), 100m Freestyle (1:42.77), 100m IM (1:53.72).
Keyser, Theodore swims for Glencoe Gators Swim Club.
Keyser, Theodore has competed in 7 meets.