| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:15.81 | GO Gee Gee March Break Invitational 2026 | 2026-02-28 |
| 100m Breaststroke | 1:28.96 | GO Gee Gee March Break Invitational 2026 | 2026-02-28 |
| 100m Butterfly | 1:22.78 | GO Gee Gee March Break Invitational 2026 | 2026-02-28 |
| 100m Freestyle | 1:08.68 | 2026 NKB National Capital Cup | 2026-02-13 |
| 100m Freestyle | 1:07.49 | GO Gee Gee March Break Invitational 2026 | 2026-02-28 |
| 100m IM | 1:24.35 | GO King & Queen of the Pool - Pentathlon 2025 | 2025-10-18 |
| 200m Backstroke | 2:53.19 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 200m Freestyle | 2:29.85 | 2026 NKB National Capital Cup | 2026-02-13 |
| 200m Freestyle | 2:25.80 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 200m IM | 2:56.51 | GO Fall Halloween Invitational 2025 | 2025-11-01 |
| 400m Freestyle | 5:18.66 | 2026 NKB National Capital Cup | 2026-02-13 |
| 400m Freestyle | 5:09.14 | GO Gee Gee March Break Invitational 2026 | 2026-02-28 |
| 400m IM | 6:03.66 | GO Gee Gee March Break Invitational 2026 | 2026-02-28 |
| 50m Backstroke | 35.80 | 2026 NKB National Capital Cup | 2026-02-13 |
| 50m Backstroke | 37.47 | GO King & Queen of the Pool - Pentathlon 2025 | 2025-10-18 |
| 50m Breaststroke | 43.82 | GO King & Queen of the Pool - Pentathlon 2025 | 2025-10-18 |
| 50m Butterfly | 36.50 | GO King & Queen of the Pool - Pentathlon 2025 | 2025-10-18 |
| 50m Freestyle | 30.53 | 2026 NKB National Capital Cup | 2026-02-13 |
| 50m Freestyle | 30.06 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 800m Freestyle | 10:46.00 | 2026 NKB National Capital Cup | 2026-02-13 |
Marcil, Samuel's top personal bests include 100m Backstroke (1:15.81), 100m Breaststroke (1:28.96), 100m Butterfly (1:22.78), 100m Freestyle (1:08.68), 100m Freestyle (1:07.49).
Marcil, Samuel swims for Greater Ottawa Kingfish Swim Club.
Marcil, Samuel has competed in 8 meets.