swimJoanna Kostrzewa
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 37.02 | +1.63s to B·+12.23s to Sectionals | 2024-03-02 | 2024 MR AGUA Last Chance Invitational |
| 200 Freestyle | SCY | 2:56.96 | +7.87s to B·+61.97s to Sectionals | 2025-10-26 | 2025 MR QNS Can I Kick It Invitationalvenue |
| 100 Backstroke | SCY | 1:25.61 | B+2.02s to BB·+26.32s to Sectionals | 2025-10-26 | 2025 MR QNS Can I Kick It Invitationalvenue |
| 50 Breaststroke | SCY | 3:17.63 | +152.14s to B·+167.84s to Futures | 2024-11-23 | 2024 MR QNS Protect Ya (turkey) Neck Invite |
| 100 Individual Medley | SCY | 1:12.99 | A+0.20s to AA | 2024-09-29 | 2024 MR QNS Hello Brooklyn!! |
| 50 Freestyle | LCM | 42.42 | +2.03s to B·+14.13s to Sectionals | 2024-06-22 | 2024 MR LIE June Jamboree Invitationalvenue |
| 100 Freestyle | LCM | 1:43.76 | +14.57s to B·+43.07s to Sectionals | 2024-06-23 | 2024 MR LIE June Jamboree Invitationalvenue |
| 50 Backstroke | LCM | 45.95 | B+2.46s to BB·+15.06s to Futures | 2024-06-22 | 2024 MR LIE June Jamboree Invitationalvenue |
| 100 Backstroke | LCM | 1:47.58 | +1.79s to B·+39.69s to Sectionals | 2024-06-23 | 2024 MR LIE June Jamboree Invitationalvenue |
| 50 Breaststroke | LCM | 55.40 | +3.11s to B·+20.61s to Futures | 2024-06-23 | 2024 MR LIE June Jamboree Invitationalvenue |
| 100 Breaststroke | LCM | 1:41.42 | BB+2.63s to A·+23.53s to Sectionals | 2025-06-06 | 2025 MR LIE June Jumpoff Invitational |
| 50 Butterfly | LCM | 58.17 | +14.58s to B·+28.68s to Futures | 2024-06-23 | 2024 MR LIE June Jamboree 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.
IMX / IMR
IMX 11-12 · LCM
835 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:47.58 | 311 |
| 100 BR LCM | 1:41.42 | 524 |
| 400 FR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 11-12 · SCY
1000 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:56.96 | 326 |
| 50 BR SCY | 3:17.63 | 4 |
| 100 IM SCY | 1:12.99 | 670 |
| 50 BK SCY | — | 0 |
| 50 FL SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Backstroke SCY 1:25.61
Front half 42.37s · back half 43.24s
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.