swimJayna Ko
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 31.93 | BB+1.44s to A·+7.14s to Sectionals | 2026-03-28 | 2026 MR Bronze Championship South - LIEvenue |
| 100 Freestyle | SCY | 1:12.95 | B+0.76s to BB·+19.86s to Sectionals | 2026-01-23 | 2026 MR HAUP Snowmageddon Splashvenue |
| 200 Freestyle | SCY | 2:44.10 | B+7.01s to BB·+49.11s to Sectionals | 2026-03-29 | 2026 MR Bronze Championship South - LIEvenue |
| 50 Backstroke | SCY | 34.62 | A+1.23s to AA·+8.33s to Futures | 2026-02-22 | 2026 MR Silvers Championship South - HAUPvenue |
| 100 Backstroke | SCY | 1:15.40 | A+2.61s to AA·+16.11s to Sectionals | 2026-02-21 | 2026 MR Silvers Championship South - HAUPvenue |
| 200 Backstroke | SCY | 2:40.70 | A+4.81s to AA·+31.81s to Sectionals | 2026-02-22 | 2026 MR Silvers Championship South - HAUPvenue |
| 50 Breaststroke | SCY | 41.96 | BB+2.97s to A·+12.17s to Futures | 2026-03-28 | 2026 MR Bronze Championship South - LIEvenue |
| 100 Breaststroke | SCY | 1:32.88 | BB+7.39s to A·+24.69s to Sectionals | 2026-03-29 | 2026 MR Bronze Championship South - LIEvenue |
| 200 Breaststroke | SCY | 3:18.87 | BB+14.28s to A·+49.48s to Sectionals | 2026-02-07 | 2026 MR YMID February Classic - copiedvenue |
| 50 Butterfly | SCY | 37.52 | B+1.43s to BB·+11.83s to Futures | 2026-03-28 | 2026 MR Bronze Championship South - LIEvenue |
| 100 Butterfly | SCY | 1:21.09 | BB+4.80s to A·+22.60s to Sectionals | 2026-01-16 | 2026 MR NFS 43rd Annual Dr. MLK Jr. Invite |
| 100 Individual Medley | SCY | 1:22.26 | BB+6.27s to A | 2026-02-08 | 2026 MR YMID February Classic - copiedvenue |
| 200 Individual Medley | SCY | 2:59.26 | B+0.27s to BB·+48.57s to Sectionals | 2026-01-16 | 2026 MR NFS 43rd Annual Dr. MLK Jr. Invitevenue |
| 50 Freestyle | LCM | 36.72 | BB+1.93s to A·+8.43s to Sectionals | 2026-05-17 | 2026 MR LIAC Spring Kickoff Invitationalvenue |
| 100 Freestyle | LCM | 1:13.60 | A+0.31s to AA·+12.91s to Sectionals | 2025-07-05 | 2025 MR LIAC Summer Splash Invitational |
| 200 Freestyle | LCM | 3:08.42 | B+9.23s to BB·+57.53s to Sectionals | 2026-05-23 | 2026 MR AGUA Memorial Day Invitationalfast pool |
| 400 Freestyle | LCM | 6:37.25 | B+17.76s to BB·+119.56s to Sectionals | 2026-04-26 | 2026 MR LIAC Speedo Long Island Challengevenue |
| 50 Backstroke | LCM | 39.21 | A+0.72s to AA·+8.32s to Futures | 2026-06-07 | 2026 MR LIAC Summertime Classic Invitationalvenue |
| 100 Backstroke | LCM | 1:23.48 | AA+2.69s to AAA·+15.59s to Sectionals | 2026-05-17 | 2026 MR LIAC Spring Kickoff Invitationalvenue |
| 200 Backstroke | LCM | 3:02.27 | A+1.08s to AA·+36.08s to Sectionals | 2026-05-24 | 2026 MR AGUA Memorial Day Invitationalfast pool |
| 50 Breaststroke | LCM | 47.04 | BB+2.15s to A·+12.25s to Futures | 2025-07-05 | 2025 MR LIAC Summer Splash Invitational |
| 100 Breaststroke | LCM | 1:52.32 | B+5.03s to BB·+34.43s to Sectionals | 2026-04-25 | 2026 MR LIAC Speedo Long Island Challengevenue |
| 200 Breaststroke | LCM | 3:54.19 | B+3.60s to BB·+64.80s to Sectionals | 2026-06-06 | 2026 MR LIAC Summertime Classic Invitationalvenue |
| 50 Butterfly | LCM | 40.20 | BB+2.81s to A·+10.71s to Futures | 2026-06-07 | 2026 MR LIAC Summertime Classic Invitationalvenue |
| 200 Individual Medley | LCM | 3:22.16 | BB+13.07s to A·+53.77s to Sectionals | 2026-06-06 | 2026 MR LIAC Summertime Classic Invitationalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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.
IMX / IMR
IMX 11-12 · LCM
1936 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 6:37.25 | 408 |
| 100 BK LCM | 1:23.48 | 665 |
| 100 BR LCM | 1:52.32 | 386 |
| 200 IM LCM | 3:22.16 | 477 |
| 100 FL LCM | — | 0 |
IMR 11-12 · LCM
2491 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 3:08.42 | 408 |
| 50 BK LCM | 39.21 | 628 |
| 50 BR LCM | 47.04 | 502 |
| 50 FL LCM | 40.20 | 476 |
| 200 IM LCM | 3:22.16 | 477 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:12.95
Front half 35.53s · back half 37.42s
200 Freestyle SCY 2:44.10
Front half 82.83s · back half 81.27s
100 Backstroke SCY 1:15.40
Front half 38.43s · back half 36.97s
200 Backstroke SCY 2:40.70
Front half 79.86s · back half 80.84s
100 Breaststroke SCY 1:32.88
Front half 44.73s · back half 48.15s
200 Breaststroke SCY 3:18.87
100 Butterfly SCY 1:21.09
100 Individual Medley SCY 1:22.26
Front half 37.37s · back half 44.89s
200 Individual Medley SCY 2:59.26
Front half 83.64s · back half 95.62s
200 Freestyle LCM 3:08.42
Front half 93.79s · back half 94.63s
400 Freestyle LCM 6:37.25
Front half 200.05s · back half 197.20s
100 Backstroke LCM 1:23.48
Front half 41.84s · back half 41.64s
200 Backstroke LCM 3:02.27
Front half 92.31s · back half 89.96s
100 Breaststroke LCM 1:52.32
Front half 54.47s · back half 57.85s
200 Breaststroke LCM 3:54.19
Front half 115.99s · back half 118.20s
200 Individual Medley LCM 3:22.16
Front half 94.71s · back half 107.45s
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.