| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:02.65 | Western Transmountain Festival I | 2026-02-14 |
| 100m Backstroke | 59.00 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 100m Breaststroke | 1:13.97 | KAJ Fall Classic | 2025-11-21 |
| 100m Freestyle | 55.34 | Western Transmountain Festival I | 2026-02-14 |
| 100m Freestyle | 52.31 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 100m IM | 1:02.12 | KAJ Fall Classic | 2025-11-21 |
| 200m Backstroke | 2:15.98 | Western Transmountain Festival I | 2026-02-14 |
| 200m Backstroke | 2:04.36 | 2025 Summer Divisionals - North & Interior | 2025-06-27 |
| 200m Breaststroke | 2:43.35 | KAJ Snowfest | 2026-01-23 |
| 200m Breaststroke | 2:43.95 | KAJ Fall Classic | 2025-11-21 |
| 200m Butterfly | 2:30.75 | KAJ Snowfest | 2026-01-23 |
| 200m Butterfly | 2:20.96 | 2025 Summer Divisionals - North & Interior | 2025-06-27 |
| 200m Freestyle | 2:04.74 | KAJ Snowfest | 2026-01-23 |
| 200m Freestyle | 1:58.02 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 200m IM | 2:19.43 | KAJ Snowfest | 2026-01-23 |
| 400m Freestyle | 4:26.52 | Western Transmountain Festival I | 2026-02-14 |
| 400m Freestyle | 4:10.34 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 50m Backstroke | 29.14 | KAJ Snowfest | 2026-01-23 |
| 50m Backstroke | 27.24 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 50m Breaststroke | 31.70 | 2025 Summer Divisionals - North & Interior | 2025-06-27 |
| 50m Butterfly | 28.68 | KAJ Snowfest | 2026-01-23 |
| 50m Butterfly | 27.20 | 2025 Summer Divisionals - North & Interior | 2025-06-27 |
| 50m Freestyle | 24.25 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 800m Freestyle | 8:46.54 | 2026 BC Winter Provincial Championships | 2026-03-05 |
Cepus, Ilija's top personal bests include 100m Backstroke (1:02.65), 100m Backstroke (59.00), 100m Breaststroke (1:13.97), 100m Freestyle (55.34), 100m Freestyle (52.31).
Cepus, Ilija swims for Kelowna AquaJets.
Cepus, Ilija has competed in 7 meets.