| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:06.96 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 100m Butterfly | 1:05.80 | Goldfins Winter Whiteout | 2026-02-06 |
| 100m Butterfly | 1:06.44 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 100m Freestyle | 59.56 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 200m Backstroke | 2:43.75 | ManSask Provincial Championships | 2025-07-10 |
| 200m Backstroke | 2:22.58 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 200m Breaststroke | 3:19.34 | Goldfins Winter Whiteout | 2026-02-06 |
| 200m Butterfly | 2:32.33 | ManSask Provincial Championships | 2025-07-10 |
| 200m Butterfly | 2:29.46 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 200m Freestyle | 2:12.90 | Goldfins Winter Whiteout | 2026-02-06 |
| 200m Freestyle | 2:09.44 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 200m IM | 2:34.32 | Goldfins Winter Whiteout | 2026-02-06 |
| 200m IM | 2:40.63 | Goldfins Blue vs Gold | 2025-06-28 |
| 400m Freestyle | 4:40.24 | Goldfins Winter Whiteout | 2026-02-06 |
| 400m Freestyle | 4:33.79 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 50m Backstroke | 31.93 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 50m Butterfly | 31.18 | ManSask Provincial Championships | 2025-07-10 |
| 50m Butterfly | 30.32 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 800m Freestyle | 9:59.53 | ManSask Provincial Championships | 2025-07-10 |
| 800m Freestyle | 9:41.25 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
Block, Joshua's top personal bests include 100m Backstroke (1:06.96), 100m Butterfly (1:05.80), 100m Butterfly (1:06.44), 100m Freestyle (59.56), 200m Backstroke (2:43.75).
Block, Joshua swims for Team Gold.
Block, Joshua has competed in 5 meets.