swimJacob Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.08 | AA+0.39s to AAA·Sectionals ✓+0.79s to Futures | 2025-12-05 | ATOM Winter Invite 2025venue |
| 100 Freestyle | SCY | 48.17 | AA+0.48s to AAA·Sectionals ✓+1.78s to Futures | 2025-12-07 | ATOM Winter Invite 2025venue |
| 200 Freestyle | SCY | 1:49.31 | AA+3.92s to AAA·+3.52s to Sectionals | 2026-02-20 | 2026 NCS SC SR Champsvenue |
| 100 Backstroke | SCY | 53.61 | AA+2.02s to AAA·Sectionals ✓+2.12s to Futures | 2024-03-23 | 2024 SwimRVA Shamrock Showdownvenue |
| 200 Backstroke | SCY | 1:57.55 | AA+4.06s to AAA·Sectionals ✓+4.76s to Futures | 2024-03-24 | 2024 SwimRVA Shamrock Showdownvenue |
| 100 Breaststroke | SCY | 1:05.39 | BB+1.20s to A·+2.70s to Sectionals | 2025-09-27 | 2025 NC SwimMac Blue Orange Intrasquadvenue |
| 100 Butterfly | SCY | 51.88 | AA+0.29s to AAA·Sectionals ✓+1.29s to Futures | 2025-11-15 | 2025 NC SwimMAC November LC SC Invitationalvenue |
| 200 Butterfly | SCY | 2:02.61 | A+1.42s to AA·+4.12s to Sectionals | 2023-03-25 | 2023 Shamrock Showdownvenue |
| 100 Individual Medley | SCY | 59.85 | 2025-09-27 | 2025 NC SwimMac Blue Orange Intrasquadvenue | |
| 200 Individual Medley | SCY | 2:01.61 | A+0.12s to AA·+2.22s to Sectionals | 2024-03-24 | 2024 SwimRVA Shamrock Showdownvenue |
| 50 Freestyle | LCM | 24.95 | AAA+0.96s to AAAA·Sectionals ✓+0.36s to Futures | 2025-07-25 | 2025 TNAQ Senior Summer Showdownfast pool |
| 100 Freestyle | LCM | 54.75 | AAA+2.06s to AAAA·Sectionals ✓+1.16s to Futures | 2025-06-21 | SGSA 69th Annual Eastern Invitationalvenue |
| 200 Freestyle | LCM | 2:01.28 | AA+0.59s to AAA·+0.39s to Sectionals | 2025-06-20 | SGSA 69th Annual Eastern Invitationalvenue |
| 100 Backstroke | LCM | 1:01.70 | AA+0.31s to AAA·Sectionals ✓+1.11s to Futures | 2025-07-24 | 2025 TNAQ Senior Summer Showdownfast pool |
| 200 Backstroke | LCM | 2:14.94 | AA+1.15s to AAA·Sectionals ✓+3.05s to Futures | 2025-07-23 | 2025 TNAQ Senior Summer Showdownfast pool |
| 100 Butterfly | LCM | 59.69 | AA+0.80s to AAA·Sectionals ✓+1.70s to Futures | 2025-07-26 | 2025 TNAQ Senior Summer Showdownfast pool |
| 200 Individual Medley | LCM | 2:26.65 | A+4.76s to AA·+8.96s to Sectionals | 2026-01-17 | 2026 NC SwimMAC Novant LCvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
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 | 22.51 | flying | 200 Free Relay (leg 4) | 2026-02-21 | 2026 NCS SC SR Champs |
| 50 Butterfly | SCY | 25.12 | flying | 200 Medley Relay (leg 3) | 2023-03-26 | 2023 Shamrock Showdown |
| 50 Freestyle | LCM | 24.89 | flying | 200 Medley Relay (leg 4) | 2025-07-23 | 2025 TNAQ Senior Summer Showdown |
| 100 Freestyle | LCM | 55.14 | flat | 400 Free Relay | 2025-07-25 | 2025 TNAQ Senior Summer Showdown |
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 · SCY
2242 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK SCY | 1:57.55 | 773 |
| 200 FL SCY | 2:02.61 | 717 |
| 200 IM SCY | 2:01.61 | 752 |
| 500 FR SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 17-18 · SCY
3754 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:49.31 | 770 |
| 100 BK SCY | 53.61 | 758 |
| 100 BR SCY | 1:05.39 | 627 |
| 100 FL SCY | 51.88 | 847 |
| 200 IM SCY | 2:01.61 | 752 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 48.17
Front half 23.19s · back half 24.98s
200 Freestyle SCY 1:49.31
Front half 52.29s · back half 57.02s
100 Backstroke SCY 53.61
Front half 25.87s · back half 27.74s
200 Backstroke SCY 1:57.55
Front half 57.39s · back half 60.16s
100 Breaststroke SCY 1:05.39
Front half 31.12s · back half 34.27s
100 Butterfly SCY 51.88
Front half 24.14s · back half 27.74s
200 Butterfly SCY 2:02.61
Front half 58.06s · back half 64.55s
100 Individual Medley SCY 59.85
Front half 27.38s · back half 32.47s
200 Individual Medley SCY 2:01.61
Front half 56.42s · back half 65.19s
100 Freestyle LCM 54.75
Front half 26.38s · back half 28.37s
200 Freestyle LCM 2:01.28
Front half 58.94s · back half 62.34s
100 Backstroke LCM 1:01.70 RT 0.61s
Front half 29.79s · back half 31.91s
200 Backstroke LCM 2:14.94 RT 0.65s
Front half 65.17s · back half 69.77s
100 Butterfly LCM 59.69 RT 0.50s
Front half 27.79s · back half 31.90s
200 Individual Medley LCM 2:26.65
Front half 68.41s · back half 78.24s
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.
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.