Zachary Collins
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 21.40 | AAA+0.71s to AAAA | 2025-11-09 | 2025 ST SCY Surge Shark Sizzler venue |
| 100 Freestyle | SCY | 46.57 | AAA+1.08s to AAAA | 2025-11-08 | 2025 ST SCY Surge Shark Sizzler venue |
| 200 Freestyle | SCY | 1:45.67 | AA+0.28s to AAA | 2025-11-09 | 2025 ST SCY Surge Shark Sizzler venue |
| 500 Freestyle | SCY | 4:48.69 | AA+2.00s to AAA | 2026-02-28 | 2026 ST AAAA SC Senior Champs venue |
| 50 Backstroke | SCY | 24.46 | AA+0.17s to AAA | 2025-11-09 | 2025 ST SCY Surge Shark Sizzler venue |
| 100 Backstroke | SCY | 52.24 | AA+0.65s to AAA | 2026-02-28 | 2026 ST AAAA SC Senior Champs venue |
| 200 Backstroke | SCY | 1:54.84 | AA+1.35s to AAA | 2025-02-16 | 2025 ST AAAA Senior Champs venue |
| 50 Butterfly | SCY | 24.03 | AAA+0.84s to AAAA | 2025-09-13 | 2025 ST ASC Sprint Meet venue |
| 100 Butterfly | SCY | 52.08 | AA+0.49s to AAA | 2025-11-09 | 2025 ST SCY Surge Shark Sizzler venue |
| 100 Individual Medley | SCY | 53.90 | 2025-11-24 | 2025 ST HCA Butterball Bash venue | |
| 200 Individual Medley | SCY | 1:55.30 | AAA+4.41s to AAAA | 2025-11-08 | 2025 ST SCY Surge Shark Sizzler venue |
| 50 Freestyle | LCM | 24.64 | AAA+0.65s to AAAA | 2025-05-17 | 2025 ST TXLA Longhorn Aquatics Elite Invite venue |
| 100 Freestyle | LCM | 54.03 | AAA+1.34s to AAAA | 2025-05-15 | 2025 ST TXLA Longhorn Aquatics Elite Invite venue |
| 200 Freestyle | LCM | 2:09.12 | A+2.93s to AA | 2024-04-13 | 2024 ST TXLA 11&O Long Course Kick Off venue |
| 50 Backstroke | LCM | 29.92 | AA+0.63s to AAA | 2026-05-03 | 2026 ST HCA Long Course Invitational venue |
| 100 Backstroke | LCM | 1:02.52 | AA+1.13s to AAA | 2025-05-17 | 2025 ST TXLA Longhorn Aquatics Elite Invite venue |
| 200 Backstroke | LCM | 2:27.62 | BB+1.73s to A | 2025-04-26 | 2025 ST CCSS LC Unclassified venue |
| 50 Butterfly | LCM | 27.36 | AAA+1.27s to AAAA | 2025-05-04 | 2025 ST 22nd Annual Cinco de Mayo venue |
| 100 Butterfly | LCM | 1:00.60 | AA+1.71s to AAA | 2025-07-12 | 2025 ST TXLA SZ LC Sectional Champs venue |
| 200 Individual Medley | LCM | 2:26.68 | A+4.79s to AA | 2026-04-11 | 2026 ST HCA Spring on the Hill Intrasquad venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Backstroke | SCY | 54.28 | flat | 400 Medley Relay | 2024-02-18 | 2024 ST STAGS Championships |
| 100 Freestyle | LCM | 55.00 | flat | 400 Free Relay | 2025-07-11 | 2025 ST TXLA SZ LC Sectional Champs |
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
2550 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 4:48.69 | 839 |
| 200 BK SCY | 1:54.84 | 829 |
| 200 IM SCY | 1:55.30 | 882 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 17-18 · SCY
3390 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:45.67 | 852 |
| 100 BK SCY | 52.24 | 819 |
| 100 FL SCY | 52.08 | 837 |
| 200 IM SCY | 1:55.30 | 882 |
| 100 BR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 46.57
Front half 22.44s · back half 24.13s
200 Freestyle SCY 1:45.67
Front half 50.10s · back half 55.57s
500 Freestyle SCY 4:48.69
Front half 139.63s · back half 149.06s
100 Backstroke SCY 52.24
Front half 25.16s · back half 27.08s
200 Backstroke SCY 1:54.84
Front half 55.38s · back half 59.46s
100 Butterfly SCY 52.08
Front half 23.87s · back half 28.21s
100 Individual Medley SCY 53.90
Front half 24.78s · back half 29.12s
200 Individual Medley SCY 1:55.30
Front half 53.21s · back half 62.09s
100 Freestyle LCM 54.03
Front half 25.88s · back half 28.15s
200 Freestyle LCM 2:09.12
Front half 60.59s · back half 68.53s
100 Backstroke LCM 1:02.52
Front half 29.46s · back half 33.06s
100 Butterfly LCM 1:00.60
Front half 27.79s · back half 32.81s
200 Individual Medley LCM 2:26.68
Front half 68.94s · back half 77.74s
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.