swimJethro Mamauag
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.93 | BB+0.54s to A | 2023-02-11 | 2023 CAC 2nd Annual Spring Fest Swim Meet slow pool |
| 100 Freestyle | SCY | 55.08 | BB+1.59s to A | 2023-10-07 | 2023 ASC All Freestyle Meet venue |
| 200 Freestyle | SCY | 2:05.47 | BB+8.68s to A | 2023-02-12 | 2023 CAC 2nd Annual Spring Fest Swim Meet slow pool |
| 500 Freestyle | SCY | 5:59.31 | B+15.32s to BB | 2023-10-07 | 2023 ASC All Freestyle Meet venue |
| 1000 Freestyle | SCY | 12:41.74 | B+45.05s to BB | 2023-01-08 | 2023 LBA IMX Distance Challenge venue |
| 50 Backstroke | SCY | 31.39 | B+1.80s to BB | 2025-02-01 | 2025 ASC Senior Meet venue |
| 100 Backstroke | SCY | 1:06.09 | B+3.20s to BB | 2023-02-11 | 2023 CAC 2nd Annual Spring Fest Swim Meet slow pool |
| 200 Backstroke | SCY | 2:22.96 | B+5.07s to BB | 2023-02-12 | 2023 CAC 2nd Annual Spring Fest Swim Meet slow pool |
| 50 Breaststroke | SCY | 30.00 | AA+1.11s to AAA | 2025-02-09 | 2025 Last Chance Qualifying fast pool |
| 100 Breaststroke | SCY | 1:07.07 | BB+1.08s to A | 2025-02-08 | 2025 Last Chance Qualifying fast pool |
| 200 Breaststroke | SCY | 2:29.76 | BB+6.57s to A | 2025-02-09 | 2025 Last Chance Qualifying fast pool |
| 50 Butterfly | SCY | 29.53 | B+0.04s to BB | 2025-02-08 | 2025 Last Chance Qualifying fast pool |
| 100 Butterfly | SCY | 1:12.26 | +4.97s to B | 2023-02-12 | 2023 CAC 2nd Annual Spring Fest Swim Meet slow pool |
| 100 Individual Medley | SCY | 1:02.18 | 2025-02-09 | 2025 Last Chance Qualifying fast pool | |
| 200 Individual Medley | SCY | 2:24.08 | B+3.59s to BB | 2022-12-11 | 2022 ASC Holiday Invitational venue |
| 400 Individual Medley | SCY | 5:25.78 | +1.89s to B | 2023-01-07 | 2023 LBA IMX Distance Challenge venue |
| 50 Freestyle | LCM | 28.66 | BB+0.37s to A | 2024-05-20 | MAKO Spring Fling LC ABBC Invitational |
| 100 Freestyle | LCM | 1:04.56 | BB+2.97s to A | 2023-04-30 | 2023 ASC Spring Long Course Meet venue |
| 200 Freestyle | LCM | 2:32.61 | B+6.62s to BB | 2022-07-29 | 2022 Summer Junior Champs LCM Meet |
| 400 Freestyle | LCM | 5:47.56 | +11.97s to B | 2022-04-30 | 2022 ASC Spring Long Course Meet venue |
| 100 Backstroke | LCM | 1:18.84 | B+5.05s to BB | 2024-05-20 | MAKO Spring Fling LC ABBC Invitational |
| 200 Backstroke | LCM | 2:45.64 | B+5.65s to BB | 2023-04-29 | 2023 ASC Spring Long Course Meet venue |
| 100 Breaststroke | LCM | 1:21.81 | BB+4.82s to A | 2023-04-29 | 2023 ASC Spring Long Course Meet venue |
| 200 Breaststroke | LCM | 3:03.22 | B+1.83s to BB | 2023-04-30 | 2023 ASC Spring Long Course Meet venue |
| 200 Individual Medley | LCM | 2:45.95 | B+2.06s to BB | 2023-04-30 | 2023 ASC Spring Long Course Meet venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.01 | flat | 200 Free Relay | 2023-03-03 | 2023 MD LSC 14 & U Championships |
| 100 Freestyle | SCY | 55.55 | flying | 400 Free Relay (leg 2) | 2023-03-05 | 2023 MD LSC 14 & U 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 15-16 · SCY
2394 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:59.31 | 454 |
| 200 BK SCY | 2:22.96 | 464 |
| 200 BR SCY | 2:29.76 | 585 |
| 200 IM SCY | 2:24.08 | 484 |
| 400 IM SCY | 5:25.78 | 407 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
2447 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:05.47 | 537 |
| 100 BK SCY | 1:06.09 | 451 |
| 100 BR SCY | 1:07.07 | 636 |
| 100 FL SCY | 1:12.26 | 339 |
| 200 IM SCY | 2:24.08 | 484 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 55.08
Front half 26.64s · back half 28.44s
200 Freestyle SCY 2:05.47
Front half 60.00s · back half 65.47s
500 Freestyle SCY 5:59.31
Front half 176.30s · back half 183.01s
1000 Freestyle SCY 12:41.74
Front half 373.20s · back half 388.54s
100 Backstroke SCY 1:06.09
Front half 32.08s · back half 34.01s
200 Backstroke SCY 2:22.96
Front half 68.39s · back half 74.57s
100 Breaststroke SCY 1:07.07
Front half 30.66s · back half 36.41s
200 Breaststroke SCY 2:29.76
Front half 70.09s · back half 79.67s
100 Butterfly SCY 1:12.26
Front half 33.12s · back half 39.14s
100 Individual Medley SCY 1:02.18
Front half 30.07s · back half 32.11s
200 Individual Medley SCY 2:24.08
Front half 69.76s · back half 74.32s
400 Individual Medley SCY 5:25.78
Front half 160.13s · back half 165.65s
100 Freestyle LCM 1:04.56
Front half 30.40s · back half 34.16s
400 Freestyle LCM 5:47.56
Front half 170.67s · back half 176.89s
100 Backstroke LCM 1:18.84 split/total mismatch
Front half 37.70s · back half 41.14s
200 Backstroke LCM 2:45.64
Front half 80.10s · back half 85.54s
100 Breaststroke LCM 1:21.81
Front half 37.89s · back half 43.92s
200 Breaststroke LCM 3:03.22
Front half 85.62s · back half 97.60s
200 Individual Medley LCM 2:45.95
Front half 81.04s · back half 84.91s
Progression
Faster times are higher. One card per event, all courses & history.