swimChristian Koser
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 30.58 | BB+0.49s to A | 2025-01-19 | 2025 T2 Aquatics Naples Open venue |
| 100 Freestyle | SCY | 1:09.07 | BB+3.88s to A | 2025-01-18 | 2025 T2 Aquatics Naples Open venue |
| 200 Freestyle | SCY | 2:48.81 | +2.22s to B | 2024-10-26 | 2024 T2 Spooktacular venue |
| 500 Freestyle | SCY | 6:47.15 | BB+24.66s to A | 2025-01-17 | 2025 T2 Aquatics Naples Open venue |
| 50 Backstroke | SCY | 37.08 | BB+2.19s to A | 2025-01-18 | 2025 T2 Aquatics Naples Open venue |
| 100 Backstroke | SCY | 1:22.72 | B+0.03s to BB | 2024-11-17 | 2024 SYS Turkey Meet venue |
| 50 Breaststroke | SCY | 42.68 | BB+3.19s to A | 2025-01-18 | 2025 T2 Aquatics Naples Open venue |
| 100 Breaststroke | SCY | 1:33.36 | B+0.77s to BB | 2025-01-19 | 2025 T2 Aquatics Naples Open venue |
| 100 Butterfly | SCY | 2:00.96 | +30.47s to B | 2024-11-16 | 2024 SYS Turkey Meet venue |
| 100 Individual Medley | SCY | 1:30.88 | +2.79s to B | 2024-10-26 | 2024 T2 Spooktacular venue |
| 200 Individual Medley | SCY | 3:14.60 | +1.91s to B | 2024-10-25 | 2024 T2 Spooktacular venue |
| 50 Freestyle | LCM | 34.81 | BB+0.62s to A | 2025-04-12 | 2025 GCST Spring Invite venue |
| 100 Freestyle | LCM | 1:19.68 | BB+4.39s to A | 2024-05-26 | 2024 T2 Aquatics Norris Foundation LC Meet venue |
| 200 Freestyle | LCM | 2:57.40 | B+1.21s to BB | 2024-06-15 | 2024 GCST MARK MCCAW SUMMER INVITE venue |
| 400 Freestyle | LCM | 6:23.88 | B+10.79s to BB | 2024-05-24 | 2024 T2 Aquatics Norris Foundation LC Meet venue |
| 50 Backstroke | LCM | 44.31 | B+0.32s to BB | 2024-04-21 | 2024 GCST Spring Open venue |
| 100 Backstroke | LCM | 1:39.16 | B+2.67s to BB | 2025-04-12 | 2025 GCST Spring Invite venue |
| 50 Breaststroke | LCM | 49.47 | B+0.28s to BB | 2025-04-13 | 2025 GCST Spring Invite venue |
| 100 Breaststroke | LCM | 1:39.77 | BB+0.48s to A | 2024-04-19 | 2024 GCST Spring Open |
| 50 Butterfly | LCM | 53.49 | +8.20s to B | 2024-06-15 | 2024 GCST MARK MCCAW SUMMER INVITE venue |
| 100 Butterfly | LCM | 2:00.18 | +16.69s to B | 2025-04-13 | 2025 GCST Spring Invite venue |
| 200 Individual Medley | LCM | 3:40.79 | +0.10s to B | 2024-06-16 | 2024 GCST MARK MCCAW SUMMER INVITE venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 42.81 | flying | 200 Free Relay (leg 4) | 2024-02-25 | 2024 Spring Area 5 Championships |
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 11-12 · LCM
1762 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 6:23.88 | 413 |
| 100 BK LCM | 1:39.16 | 357 |
| 100 BR LCM | 1:39.77 | 496 |
| 100 FL LCM | 2:00.18 | 179 |
| 200 IM LCM | 3:40.79 | 317 |
IMR 11-12 · LCM
1717 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:57.40 | 434 |
| 50 BK LCM | 44.31 | 397 |
| 50 BR LCM | 49.47 | 388 |
| 50 FL LCM | 53.49 | 181 |
| 200 IM LCM | 3:40.79 | 317 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:09.07
Front half 33.53s · back half 35.54s
200 Freestyle SCY 2:48.81
Front half 81.79s · back half 87.02s
500 Freestyle SCY 6:47.15
Front half 247.27s · back half 159.88s
100 Backstroke SCY 1:22.72
100 Breaststroke SCY 1:33.36
Front half 44.36s · back half 49.00s
100 Butterfly SCY 2:00.96
Front half 54.54s · back half 66.42s
100 Individual Medley SCY 1:30.88
Front half 45.38s · back half 45.50s
200 Individual Medley SCY 3:14.60
Front half 99.90s · back half 94.70s
200 Freestyle LCM 2:57.40
Front half 89.42s · back half 87.98s
400 Freestyle LCM 6:23.88
Front half 191.00s · back half 192.88s
100 Butterfly LCM 2:00.18
Front half 57.22s · back half 62.96s
200 Individual Medley LCM 3:40.79
Front half 114.48s · back half 106.31s
Progression
Faster times are higher. One card per event, all courses & history.