| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:28.51 | GMAC Dash for Cash | 2025-12-05 |
| 100m Breaststroke | 1:43.39 | GMAC Dash for Cash | 2025-12-05 |
| 100m Freestyle | 1:15.35 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 100m IM | 1:45.07 | GMAC End of the Year Splash | 2025-06-07 |
| 200m Backstroke | 3:09.75 | GMAC Dash for Cash | 2025-12-05 |
| 200m Breaststroke | 3:38.90 | GMAC Dash for Cash | 2025-12-05 |
| 200m Freestyle | 2:50.68 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 200m IM | 3:19.69 | BAC SC Fall Invitational | 2025-11-07 |
| 400m Freestyle | 5:58.26 | GMAC Dash for Cash | 2025-12-05 |
| 50m Backstroke | 42.19 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 50m Breaststroke | 47.25 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 50m Butterfly | 43.22 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 50m Freestyle | 34.08 | LAC - Nothers Fall Invitational | 2025-11-21 |
Koch, Lukas's top personal bests include 100m Backstroke (1:28.51), 100m Breaststroke (1:43.39), 100m Freestyle (1:15.35), 100m IM (1:45.07), 200m Backstroke (3:09.75).
Koch, Lukas swims for Guelph Marlin Aquatic Club.
Koch, Lukas has competed in 7 meets.