Preston Marks
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.70 | A+0.31s to AA·+0.51s to Sectionals | 2026-11-07 | Pleasanton Seahawks SC Senior 2venue |
| 100 Freestyle | SCY | 51.71 | A+0.42s to AA·+0.72s to Sectionals | 2026-11-08 | Pleasanton Seahawks SC Senior 2venue |
| 50 Backstroke | SCY | 26.67 | A+0.58s to AA·+2.98s to Futures | 2026-11-07 | Pleasanton Seahawks SC Senior 2venue |
| 100 Backstroke | SCY | 58.25 | BB+0.16s to A·+2.76s to Sectionals | 2026-11-08 | Pleasanton Seahawks SC Senior 2venue |
| 200 Backstroke | SCY | 2:05.02 | A+3.03s to AA·+3.73s to Sectionals | 2026-11-07 | Pleasanton Seahawks SC Senior 2venue |
| 50 Breaststroke | SCY | 30.36 | A+0.17s to AA·+4.07s to Futures | 2026-11-08 | Pleasanton Seahawks SC Senior 2venue |
| 100 Breaststroke | SCY | 1:12.08 | B+0.59s to BB·+8.89s to Sectionals | 2026-01-11 | Pleasanton Seahawks SCY C B BB+ Meetvenue |
| 200 Individual Medley | SCY | 2:13.52 | BB+3.83s to A·+9.53s to Sectionals | 2026-10-11 | Orinda Aquatics PC SC C/B/BB+venue |
| 50 Freestyle | LCM | 27.05 | AA+1.16s to AAA·+0.06s to Sectionals | 2026-07-11 | Pacific Swimming Long Course Senior Openvenue |
| 100 Freestyle | LCM | 1:01.43 | A+2.44s to AA·+2.44s to Sectionals | 2026-04-18 | Pacific Swimming LCM Senior Open host TERAvenue |
| 200 Freestyle | LCM | 2:16.14 | BB+1.35s to A·+7.45s to Sectionals | 2026-04-19 | Pacific Swimming LCM Senior Open host TERAvenue |
| 100 Backstroke | LCM | 1:11.07 | BB+2.98s to A·+5.88s to Sectionals | 2026-06-14 | Orinda PC LC AG C/B/BB+venue |
| 200 Backstroke | LCM | 2:26.98 | A+5.49s to AA·+5.49s to Sectionals | 2026-07-11 | Pacific Swimming Long Course Senior Openvenue |
| 50 Breaststroke | LCM | 35.43 | A+1.04s to AA·+4.54s to Futures | 2026-07-11 | Pacific Swimming Long Course Senior Openvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Freestyle | SCY | 53.72 | flat | 400 Free Relay | 2026-03-14 | DLS Swim Invitational 2026 |
| 50 Backstroke | SCY | 27.99 | flat | 200 Medley Relay | 2026-03-14 | DLS Swim Invitational 2026 |
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
1303 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK SCY | 2:05.02 | 694 |
| 200 IM SCY | 2:13.52 | 609 |
| 500 FR SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
1779 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 58.25 | 658 |
| 100 BR SCY | 1:12.08 | 512 |
| 200 IM SCY | 2:13.52 | 609 |
| 200 FR SCY | — | 0 |
| 100 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 Freestyle SCY 51.71
Front half 24.71s · back half 27.00s
100 Backstroke SCY 58.25
Front half 28.26s · back half 29.99s
200 Backstroke SCY 2:05.02
Front half 60.73s · back half 64.29s
200 Freestyle LCM 2:16.14
Front half 65.52s · back half 70.62s
200 Backstroke LCM 2:26.98
Front half 72.04s · back half 74.94s
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.