Stef Siwczak
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.82 | AA+0.63s to AAA·+1.93s to Sectionals | 2025-11-09 | 2025 ST SCY Surge Shark Sizzler venue |
| 100 Freestyle | SCY | 57.67 | AA+0.68s to AAA·+3.58s to Sectionals | 2025-11-08 | 2025 ST SCY Surge Shark Sizzler venue |
| 200 Freestyle | SCY | 2:04.15 | AA+0.26s to AAA·+7.46s to Sectionals | 2026-01-11 | 2026 ST TXLA New Year's Classic Invite venue |
| 500 Freestyle | SCY | 5:37.78 | AA+7.29s to AAA·+27.89s to Sectionals | 2025-11-07 | 2025 ST SCY Surge Shark Sizzler venue |
| 50 Backstroke | SCY | 29.96 | AA+0.67s to AAA·+1.37s to Sectionals | 2025-10-18 | 2025 ST TXLA 11&Over Fall Kick Off Invite venue |
| 100 Backstroke | SCY | 1:03.03 | AA+0.74s to AAA·+2.24s to Sectionals | 2026-01-11 | 2026 ST TXLA New Year's Classic Invite venue |
| 200 Backstroke | SCY | 2:15.03 | AA+0.74s to AAA·+1.74s to Sectionals | 2026-01-10 | 2026 ST TXLA New Year's Classic Invite venue |
| 50 Breaststroke | SCY | 36.79 | A+1.30s to AA·+3.20s to Sectionals | 2026-02-07 | 2026 ST AQTX STX Champs North venue |
| 100 Breaststroke | SCY | 1:23.13 | BB+5.14s to A·+12.24s to Sectionals | 2026-01-18 | 2026 ST AQTX B Champs North venue |
| 50 Butterfly | SCY | 29.11 | AA+0.32s to AAA·+1.72s to Sectionals | 2025-11-08 | 2025 ST SCY Surge Shark Sizzler venue |
| 100 Butterfly | SCY | 1:05.59 | A+0.80s to AA·+6.50s to Sectionals | 2026-01-10 | 2026 ST TXLA New Year's Classic Invite venue |
| 100 Individual Medley | SCY | 1:08.30 | 2025-03-08 | 2025 ST SRG Surge Spring Shenanigans venue | |
| 200 Individual Medley | SCY | 2:22.58 | AA+3.79s to AAA·+9.99s to Sectionals | 2026-01-11 | 2026 ST TXLA New Year's Classic Invite venue |
| 50 Freestyle | LCM | 30.23 | AA+0.34s to AAA·+1.84s to Sectionals | 2026-07-12 | 2026 ST NIST LC STAGS venue |
| 100 Freestyle | LCM | 1:04.73 | AAA+2.64s to AAAA·+3.44s to Sectionals | 2026-06-07 | 2026 ST SRG Arena Surge Shark Sizzler fast pool |
| 200 Freestyle | LCM | 2:23.65 | AA+1.86s to AAA·+11.56s to Sectionals | 2026-07-12 | 2026 ST NIST LC STAGS venue |
| 400 Freestyle | LCM | 5:16.89 | A+5.50s to AA·+38.10s to Sectionals | 2026-04-26 | 2026 ST TXLA 11&O Long Course Kick Off venue |
| 50 Backstroke | LCM | 33.42 | AAA+0.63s to AAAA·+0.53s to Sectionals | 2026-06-05 | 2026 ST SRG Arena Surge Shark Sizzler fast pool |
| 100 Backstroke | LCM | 1:11.85 | AAA+2.46s to AAAA·+2.06s to Sectionals | 2026-07-12 | 2026 ST NIST LC STAGS venue |
| 200 Backstroke | LCM | 2:35.66 | AAA+5.87s to AAAA·+3.67s to Sectionals | 2026-07-10 | 2026 ST NIST LC STAGS venue |
| 50 Breaststroke | LCM | 44.47 | BB+2.38s to A·+6.18s to Sectionals | 2025-04-26 | 2025 ST CCSS LC Unclassified venue |
| 100 Breaststroke | LCM | 1:34.91 | BB+5.12s to A·+14.32s to Sectionals | 2025-06-21 | 2025 ST AAAA NS George Block Invite venue |
| 200 Breaststroke | LCM | 3:30.73 | B+1.04s to BB·+34.74s to Sectionals | 2026-05-02 | 2026 ST HCA Long Course Invitational venue |
| 50 Butterfly | LCM | 32.26 | AAA+1.37s to AAAA·+0.97s to Sectionals | 2026-06-06 | 2026 ST SRG Arena Surge Shark Sizzler fast pool |
| 100 Butterfly | LCM | 1:13.73 | AA+3.14s to AAA·+6.34s to Sectionals | 2026-06-05 | 2026 ST SRG Arena Surge Shark Sizzler fast pool |
| 200 Individual Medley | LCM | 2:44.07 | AA+5.08s to AAA·+12.68s to Sectionals | 2026-06-07 | 2026 ST SRG Arena Surge Shark Sizzler fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 | 26.91 | flat | 200 Free Relay | 2025-11-08 | 2025 ST SCY Surge Shark Sizzler |
| 100 Freestyle | SCY | 58.32 | flat | 400 Free Relay | 2026-02-21 | 2026 ST AAAA SC STAGS |
| 100 Freestyle | SCY | 55.79 | flying | 400 Free Relay (leg 4) | 2026-02-07 | 2026 ST AQTX STX Champs North |
| 100 Backstroke | SCY | 1:04.80 | flat | 400 Medley Relay | 2026-02-22 | 2026 ST AAAA SC STAGS |
| 100 Butterfly | SCY | 1:04.94 | flying | 400 Medley Relay (leg 3) | 2026-02-08 | 2026 ST AQTX STX Champs North |
| 50 Freestyle | LCM | 30.34 | flat | 200 Free Relay | 2026-07-10 | 2026 ST NIST LC STAGS |
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 13-14 · LCM
2683 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:16.89 | 661 |
| 200 BK LCM | 2:35.66 | 808 |
| 200 BR LCM | 3:30.73 | 482 |
| 200 IM LCM | 2:44.07 | 732 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 13-14 · LCM
3545 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:23.65 | 766 |
| 100 BK LCM | 1:11.85 | 821 |
| 100 BR LCM | 1:34.91 | 529 |
| 100 FL LCM | 1:13.73 | 697 |
| 200 IM LCM | 2:44.07 | 732 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 57.67
Front half 27.72s · back half 29.95s
200 Freestyle SCY 2:04.15
Front half 59.60s · back half 64.55s
500 Freestyle SCY 5:37.78
Front half 164.44s · back half 173.34s
100 Backstroke SCY 1:03.03
Front half 30.67s · back half 32.36s
200 Backstroke SCY 2:15.03
Front half 65.07s · back half 69.96s
100 Breaststroke SCY 1:23.13
Front half 39.24s · back half 43.89s
100 Butterfly SCY 1:05.59
Front half 30.85s · back half 34.74s
100 Individual Medley SCY 1:08.30
Front half 31.68s · back half 36.62s
200 Individual Medley SCY 2:22.58
Front half 66.24s · back half 76.34s
100 Freestyle LCM 1:04.73
Front half 31.06s · back half 33.67s
200 Freestyle LCM 2:23.65
Front half 67.98s · back half 75.67s
400 Freestyle LCM 5:16.89
Front half 152.41s · back half 164.48s
200 Backstroke LCM 2:35.66
Front half 76.10s · back half 79.56s
200 Breaststroke LCM 3:30.73
Front half 100.38s · back half 110.35s
100 Butterfly LCM 1:13.73
Front half 34.79s · back half 38.94s
200 Individual Medley LCM 2:44.07
Front half 75.84s · back half 88.23s
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.