swimJohn Nguyen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 15.85 | 2025-01-05 | 2025 JAWS New Years Classic venue | |
| 50 Freestyle | SCY | 29.96 | A+1.17s to AA | 2026-03-08 | 2026 Lake Michigan Regional Meet venue |
| 100 Freestyle | SCY | 1:06.54 | BB+1.35s to A | 2026-03-07 | 2026 Lake Michigan Regional Meet venue |
| 25 Backstroke | SCY | 18.64 | 2025-01-04 | 2025 JAWS New Years Classic venue | |
| 50 Backstroke | SCY | 35.24 | BB+0.35s to A | 2026-03-07 | 2026 Lake Michigan Regional Meet venue |
| 100 Backstroke | SCY | 1:08.18 | AAA+3.19s to AAAA | 2026-05-09 | 2026 West Coast vs The "D" Dual Meet |
| 200 Backstroke | SCY | 2:13.09 | AAAA | 2026-01-17 | MLA 2026 Big Lake Invite |
| 25 Breaststroke | SCY | 22.03 | 2025-01-04 | 2025 JAWS New Years Classic venue | |
| 50 Breaststroke | SCY | 42.14 | BB+2.65s to A | 2026-01-18 | MLA 2026 Big Lake Invite fast pool |
| 100 Breaststroke | SCY | 1:43.20 | +2.91s to B | 2025-11-23 | 2025 NKAT Fall Frenzy - Day After Meet venue |
| 100 Butterfly | SCY | 1:06.37 | AAA+1.88s to AAAA | 2025-11-15 | 2025 GR Gales of November Open Invitational |
| 200 Individual Medley | SCY | 2:27.81 | AAA+5.82s to AAAA | 2026-01-17 | MLA 2026 Big Lake Invite |
| 50 Freestyle | SCM | 42.56 | +3.77s to B | 2024-05-11 | 2024 WMS Spring Splash slow pool |
| 50 Backstroke | SCM | 43.65 | B+1.56s to BB | 2025-05-10 | 2025 WMS Spring Splash slow pool |
| 50 Breaststroke | SCM | 55.13 | +3.34s to B | 2025-05-10 | 2025 WMS Spring Splash slow pool |
| 100 Breaststroke | SCM | 2:04.65 | +13.86s to B | 2025-05-10 | 2025 WMS Spring Splash slow pool |
| 50 Freestyle | LCM | 32.27 | AA+0.88s to AAA | 2026-05-02 | 2026 Calvin Early Bird Invite LCM |
| 400 Freestyle | LCM | 6:01.91 | BB+17.52s to A | 2025-07-18 | 2025 LC MAGS Championship Meet |
| 50 Backstroke | LCM | 38.86 | A+0.37s to AA | 2026-06-07 | MLA Big Red Challenge fast pool |
| 100 Backstroke | LCM | 1:28.76 | BB+0.57s to A | 2026-06-27 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 50 Breaststroke | LCM | 47.05 | BB+2.06s to A | 2026-06-20 | 2026 Summer Solstice Meet venue |
| 100 Breaststroke | LCM | 1:48.36 | B+0.17s to BB | 2026-06-07 | MLA Big Red Challenge fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 1:13.50 | flying | 200 Free Relay (leg 2) | 2024-07-16 | 2024 WMSL Summer A Championship |
| 50 Freestyle | SCY | 26.87 | flying | 200 Medley Relay (leg 4) | 2026-02-08 | 2026 Grand Rapids Open |
| 50 Backstroke | SCY | 42.37 | flat | 200 Medley Relay | 2025-02-23 | 2025 Lake Michigan Regional Meet |
| 50 Freestyle | LCM | 1:26.36 | flying | 200 Free Relay (leg 2) | 2025-05-03 | 2025 Calvin Early Bird Invite LCM |
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 · SCY
2365 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:08.18 | 664 |
| 100 BR SCY | 1:43.20 | 283 |
| 100 FL SCY | 1:06.37 | 705 |
| 200 IM SCY | 2:27.81 | 713 |
| 500 FR SCY | — | 0 |
IMR 11-12 · LCM
1040 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK LCM | 38.86 | 589 |
| 50 BR LCM | 47.05 | 451 |
| 200 FR LCM | — | 0 |
| 50 FL 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 SCY 1:06.54
Front half 31.46s · back half 35.08s
100 Breaststroke SCY 1:43.20
Front half 47.88s · back half 55.32s
100 Breaststroke SCM 2:04.65
Front half 58.26s · back half 66.39s
100 Backstroke LCM 1:28.76
Front half 45.94s · back half 42.82s
100 Breaststroke LCM 1:48.36
Front half 50.14s · back half 58.22s
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.