Jiyun Woo
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.85 | AA+0.46s to AAA·+0.56s to Sectionals | 2024-12-15 | SLA Holiday Blastvenue |
| 100 Freestyle | SCY | 54.29 | AAA+1.70s to AAAA·Sectionals ✓+2.40s to Futures | 2025-10-19 | 2025 USSC Trick or Treat Grab Bag Classicvenue |
| 200 Freestyle | SCY | 1:53.56 | AAA+0.07s to AAAA·Sectionals ✓+1.27s to Futures | 2026-01-04 | 2026 Mid-State 14 & Under All-Star Champsvenue |
| 500 Freestyle | SCY | 5:06.77 | AAA+0.68s to AAAA·Sectionals ✓+4.18s to Futures | 2025-03-22 | 2025 ULTRA Championship Meetvenue |
| 1000 Freestyle | SCY | 10:38.38 | AAA+8.49s to AAAA·Sectionals ✓+17.89s to Futures | 2025-03-07 | 2025 SCY MAGS Championship Meetvenue |
| 1650 Freestyle | SCY | 17:55.00 | AAA+9.31s to AAAA·Sectionals ✓+40.61s to Futures | 2025-03-23 | 2025 ULTRA Championship Meetvenue |
| 50 Backstroke | SCY | 29.34 | AA+1.15s to AAA·+2.05s to Sectionals | 2025-10-18 | 2025 USSC Trick or Treat Grab Bag Classicvenue |
| 100 Backstroke | SCY | 1:03.66 | A+1.27s to AA·+3.17s to Sectionals | 2026-02-06 | Not Winter Invitevenue |
| 200 Backstroke | SCY | 2:16.74 | A+1.35s to AA·+5.25s to Sectionals | 2024-10-20 | 2024 Grab Bag Classicvenue |
| 50 Breaststroke | SCY | 34.90 | A+0.51s to AA·+4.21s to Sectionals | 2025-10-18 | 2025 USSC Trick or Treat Grab Bag Classicvenue |
| 100 Breaststroke | SCY | 1:13.76 | A+1.87s to AA·+4.27s to Sectionals | 2026-06-13 | 2026 USSC Stoney Summer Spectacularvenue |
| 200 Breaststroke | SCY | 2:39.62 | A+5.03s to AA·+8.63s to Sectionals | 2025-01-18 | 2025 USSC Odd Age Invitevenue |
| 50 Butterfly | SCY | 27.86 | AA+0.07s to AAA·+1.17s to Sectionals | 2025-10-18 | 2025 USSC Trick or Treat Grab Bag Classicvenue |
| 100 Butterfly | SCY | 59.91 | AA+0.32s to AAA·+0.32s to Sectionals | 2024-11-03 | 2024 Holland Fall Invitevenue |
| 200 Butterfly | SCY | 2:11.05 | AAA+4.86s to AAAA·Sectionals ✓+5.66s to Futures | 2024-11-02 | 2024 Holland Fall Invitevenue |
| 100 Individual Medley | SCY | 1:01.20 | 2025-03-22 | 2025 ULTRA Championship Meetvenue | |
| 200 Individual Medley | SCY | 2:09.87 | AAA+3.18s to AAAA·Sectionals ✓+3.48s to Futures | 2025-02-07 | USSC Winter Invite 2025venue |
| 400 Individual Medley | SCY | 4:36.38 | AAA+4.29s to AAAA·Sectionals ✓+5.69s to Futures | 2026-02-13 | 2026 Senior Dualvenue |
| 50 Freestyle | LCM | 29.76 | AA+0.77s to AAA·+0.97s to Sectionals | 2025-05-17 | 2025 CW May Showersvenue |
| 100 Freestyle | LCM | 1:00.75 | AAA+1.06s to AAAA·Sectionals ✓+1.46s to Futures | 2026-07-19 | 2026 Central Zone East Summer Speedo Sectionafast pool |
| 200 Freestyle | LCM | 2:07.60 | AAAA·Futures ✓+2.61s to Jr Nationals | 2026-07-17 | 2026 Central Zone East Summer Speedo Sectionafast pool |
| 400 Freestyle | LCM | 4:31.85 | AAAA·Sectionals ✓+3.06s to Futures | 2026-03-28 | 2026 Central Zone East Spring Speedo Sectionavenue |
| 800 Freestyle | LCM | 9:27.18 | AAA+6.39s to AAAA·Sectionals ✓+13.39s to Futures | 2025-08-07 | 2025 Central Zone 14 & Under Championship Meevenue |
| 1500 Freestyle | LCM | 18:29.68 | AAA+35.69s to AAAA·Sectionals ✓+49.49s to Futures | 2024-08-11 | 2025 Central Zone 14 & Under Championship Meevenue |
| 100 Backstroke | LCM | 1:13.55 | A+0.96s to AA·+3.06s to Sectionals | 2025-05-17 | 2025 CW May Showersvenue |
| 200 Backstroke | LCM | 2:38.73 | A+2.74s to AA·+7.34s to Sectionals | 2026-06-07 | MLA Big Red Challengevenue |
| 100 Breaststroke | LCM | 1:28.05 | BB+2.16s to A·+8.06s to Sectionals | 2024-05-18 | 2024 CW May Showers Meetvenue |
| 200 Breaststroke | LCM | 3:07.41 | BB+1.62s to A·+14.62s to Sectionals | 2024-06-30 | 2024 PCC June Invitevenue |
| 50 Butterfly | LCM | 31.48 | AA+0.19s to AAA·+1.19s to Sectionals | 2026-06-05 | MLA Big Red Challengevenue |
| 100 Butterfly | LCM | 1:08.15 | AA+0.76s to AAA·+0.06s to Sectionals | 2025-07-19 | 2025 LC MAGS Championship Meetvenue |
| 200 Butterfly | LCM | 2:29.85 | AAA+6.66s to AAAA·Sectionals ✓+7.96s to Futures | 2024-06-30 | 2024 PCC June Invitevenue |
| 200 Individual Medley | LCM | 2:29.99 | AAA+4.10s to AAAA·Sectionals ✓+3.80s to Futures | 2025-08-08 | 2025 Central Zone 14 & Under Championship Meevenue |
| 400 Individual Medley | LCM | 5:19.09 | AAA+8.60s to AAAA·Sectionals ✓+11.80s to Futures | 2024-07-21 | 2024 MAGS Long Course Championship Meetvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 | 26.35 | flat | 200 Free Relay | 2026-03-13 | Senior Cup |
| 50 Freestyle | SCY | 25.21 | flying | 200 Free Relay (leg 4) | 2025-03-09 | 2025 SCY MAGS Championship Meet |
| 50 Freestyle | SCY | 24.67 | flying | 200 Medley Relay (leg 4) | 2025-10-04 | 2025 Girls Oakland County Championships |
| 100 Freestyle | SCY | 53.94 | flat | 400 Free Relay | 2025-03-07 | 2025 SCY MAGS Championship Meet |
| 100 Freestyle | SCY | 54.41 | flying | 400 Free Relay (leg 3) | 2025-02-22 | SLA Senior Cup |
| 200 Freestyle | SCY | 1:54.78 | flat | 800 Free Relay | 2025-03-08 | 2025 SCY MAGS Championship Meet |
| 50 Butterfly | SCY | 27.39 | flying | 200 Medley Relay (leg 3) | 2026-03-13 | Senior Cup |
| 100 Butterfly | SCY | 1:00.11 | flying | 400 Medley Relay (leg 3) | 2025-02-23 | SLA Senior Cup |
| 50 Freestyle | LCM | 30.68 | flat | 200 Free Relay | 2023-08-04 | 2025 Central Zone 14 & Under Championship Mee |
| 50 Freestyle | LCM | 27.74 | flying | 200 Free Relay (leg 2) | 2026-07-26 | 2026 MI LCM ULTRA Championship Meet |
| 100 Freestyle | LCM | 1:00.64 | flat | 400 Free Relay | 2026-03-27 | 2026 Central Zone East Spring Speedo Sectiona |
| 100 Freestyle | LCM | 1:00.87 | flying | 400 Free Relay (leg 4) | 2026-07-25 | 2026 MI LCM ULTRA Championship Meet |
| 200 Freestyle | LCM | 2:11.87 | flying | 800 Free Relay (leg 4) | 2026-07-24 | 2026 MI LCM ULTRA Championship Meet |
| 50 Breaststroke | LCM | 38.19 | flying | 200 Medley Relay (leg 2) | 2026-07-17 | 2026 Central Zone East Summer Speedo Sectiona |
| 100 Breaststroke | LCM | 1:25.15 | flying | 400 Medley Relay (leg 2) | 2025-07-18 | 2025 LC MAGS Championship Meet |
| 50 Butterfly | LCM | 30.99 | flying | 200 Medley Relay (leg 3) | 2025-07-19 | 2025 LC MAGS Championship Meet |
| 100 Butterfly | LCM | 1:09.16 | flying | 400 Medley Relay (leg 3) | 2024-08-10 | 2025 Central Zone 14 & Under Championship Mee |
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
4944 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:06.77 | 942 |
| 200 BK SCY | 2:16.74 | 704 |
| 200 BR SCY | 2:39.62 | 667 |
| 200 FL SCY | 2:11.05 | 855 |
| 200 IM SCY | 2:09.87 | 882 |
| 400 IM SCY | 4:36.38 | 894 |
IMR 15-16 · SCY
3994 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:53.56 | 953 |
| 100 BK SCY | 1:03.66 | 684 |
| 100 BR SCY | 1:13.76 | 668 |
| 100 FL SCY | 59.91 | 807 |
| 200 IM SCY | 2:09.87 | 882 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 54.29
Front half 26.46s · back half 27.83s
200 Freestyle SCY 1:53.56
Front half 54.87s · back half 58.69s
500 Freestyle SCY 5:06.77
Front half 153.29s · back half 153.48s
1650 Freestyle SCY 17:55.00
100 Backstroke SCY 1:03.66
Front half 31.28s · back half 32.38s
200 Backstroke SCY 2:16.74
Front half 67.50s · back half 69.24s
100 Breaststroke SCY 1:13.76
Front half 35.57s · back half 38.19s
200 Breaststroke SCY 2:39.62
Front half 78.18s · back half 81.44s
100 Butterfly SCY 59.91
Front half 28.55s · back half 31.36s
200 Butterfly SCY 2:11.05
Front half 62.95s · back half 68.10s
100 Individual Medley SCY 1:01.20
Front half 28.54s · back half 32.66s
200 Individual Medley SCY 2:09.87
400 Individual Medley SCY 4:36.38
Front half 133.90s · back half 142.48s
100 Freestyle LCM 1:00.75
Front half 29.72s · back half 31.03s
200 Freestyle LCM 2:07.60
Front half 62.59s · back half 65.01s
400 Freestyle LCM 4:31.85
Front half 135.13s · back half 136.72s
800 Freestyle LCM 9:27.18
Front half 281.90s · back half 285.28s
1500 Freestyle LCM 18:29.68
Front half 557.38s · back half 552.30s
100 Backstroke LCM 1:13.55
Front half 35.75s · back half 37.80s
200 Backstroke LCM 2:38.73
Front half 78.78s · back half 79.95s
100 Breaststroke LCM 1:28.05
Front half 43.02s · back half 45.03s
200 Breaststroke LCM 3:07.41
Front half 91.28s · back half 96.13s
100 Butterfly LCM 1:08.15
Front half 32.11s · back half 36.04s
200 Butterfly LCM 2:29.85
Front half 70.46s · back half 79.39s
200 Individual Medley LCM 2:29.99
Front half 70.35s · back half 79.64s
400 Individual Medley LCM 5:19.09
Front half 157.19s · back half 161.90s
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.