Gustav Koh
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.58 | AA+0.89s to AAA | 2024-03-13 | 1466378 |
| 100 Backstroke | SCY | 50.75 | AAA+1.56s to AAAA | 2024-03-13 | 1466378 |
| 50 Freestyle | LCM | 25.82 | AA+0.73s to AAA | 2024-05-19 | 2024 MAC LC Midwest Invitational venue |
| 100 Freestyle | LCM | 53.18 | AAA+0.49s to AAAA | 2025-07-24 | 2025 TYR FUTURES MADISON venue |
| 400 Freestyle | LCM | 4:25.62 | AA+8.33s to AAA | 2024-05-17 | 2024 MAC LC Midwest Invitational venue |
| 50 Backstroke | LCM | 27.41 | AAAA | 2025-07-25 | 2025 TYR FUTURES MADISON venue |
| 100 Backstroke | LCM | 57.85 | AAAA | 2025-07-24 | 2025 TYR FUTURES MADISON venue |
| 200 Backstroke | LCM | 2:06.25 | AAAA | 2025-07-26 | 2025 TYR FUTURES MADISON venue |
| 50 Breaststroke | LCM | 29.33 | AAAA | 2025-07-26 | 2025 TYR FUTURES MADISON venue |
| 100 Butterfly | LCM | 1:01.03 | AA+2.14s to AAA | 2024-05-19 | 2024 MAC LC Midwest Invitational venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 200 Freestyle | LCM | 1:56.43 | flying | 800 Free Relay (leg 4) | 2025-07-24 | 2025 TYR FUTURES MADISON |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
IMX / IMR
IMX 17-18 · LCM
1798 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:25.62 | 783 |
| 200 BK LCM | 2:06.25 | 1015 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 17-18 · LCM
1789 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 57.85 | 1017 |
| 100 FL LCM | 1:01.03 | 772 |
| 200 FR LCM | — | 0 |
| 100 BR LCM | — | 0 |
| 200 IM LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle LCM 53.18
Front half 25.93s · back half 27.25s
400 Freestyle LCM 4:25.62
Front half 130.69s · back half 134.93s
100 Backstroke LCM 57.85
Front half 28.09s · back half 29.76s
200 Backstroke LCM 2:06.25
Front half 61.42s · back half 64.83s
100 Butterfly LCM 1:01.03
Front half 28.21s · back half 32.82s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Progression
Faster times are higher. One card per event, all courses & history.