Mark Sferra
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.79 | A+0.70s to AA·+1.20s to Sectionals | 2025-03-02 | 2025 Lake Erie Winter Senior Championships fast pool |
| 100 Freestyle | SCY | 52.43 | A+2.04s to AA·+3.44s to Sectionals | 2025-03-01 | 2025 Lake Erie Winter Senior Championships fast pool |
| 200 Freestyle | SCY | 1:54.46 | A+3.27s to AA·+6.97s to Sectionals | 2024-02-11 | 2024 Lakewood Sectional Championship venue |
| 500 Freestyle | SCY | 5:07.29 | A+5.60s to AA·+14.40s to Sectionals | 2024-02-11 | 2024 Lakewood Sectional Championship venue |
| 1000 Freestyle | SCY | 11:41.01 | BB+41.62s to A·+92.52s to Sectionals | 2024-11-10 | 2024 BBA Mile & 500 Free Meet venue |
| 1650 Freestyle | SCY | 19:15.28 | BB+53.69s to A·+130.29s to Sectionals | 2024-11-10 | 2024 BBA Mile & 500 Free Meet venue |
| 50 Backstroke | SCY | 47.82 | +16.63s to B·+23.33s to Sectionals | 2020-01-12 | New Year Stretch 2020 slow pool |
| 100 Backstroke | SCY | 1:03.38 | B+1.29s to BB·+7.29s to Sectionals | 2024-03-03 | 2024 Lake Erie Senior Champs Prelims fast pool |
| 50 Breaststroke | SCY | 57.51 | +21.52s to B·+30.32s to Sectionals | 2019-10-13 | 2019 CCS SC Meet venue |
| 100 Breaststroke | SCY | 2:21.98 | +66.49s to B·+78.39s to Sectionals | 2019-01-13 | New Year Stretch 2019 slow pool |
| 50 Butterfly | SCY | 45.42 | +14.23s to B·+21.73s to Sectionals | 2018-11-11 | 2018 TCAT Fall Breakout Meet slow pool |
| 100 Butterfly | SCY | 59.20 | BB+2.51s to A·+5.21s to Sectionals | 2025-03-01 | 2025 Lake Erie Winter Senior Championships fast pool |
| 100 Individual Medley | SCY | 1:02.38 | 2025-03-02 | 2025 Lake Erie Winter Senior Championships fast pool | |
| 200 Individual Medley | SCY | 2:16.90 | BB+8.71s to A·+15.91s to Sectionals | 2024-03-02 | 2024 Lake Erie Senior Champs Prelims fast pool |
| 50 Freestyle | LCM | 27.71 | A+1.02s to AA·+1.72s to Sectionals | 2024-07-27 | 2024 LE Age Group and Senior LC Championships venue |
| 100 Freestyle | LCM | 1:02.74 | BB+2.15s to A·+6.15s to Sectionals | 2024-07-26 | 2024 LE Age Group and Senior LC Championships venue |
| 200 Freestyle | LCM | 2:15.77 | BB+2.48s to A·+12.28s to Sectionals | 2024-07-28 | 2024 LE Age Group and Senior LC Championships venue |
| 400 Freestyle | LCM | 4:46.33 | BB+2.04s to A·+24.14s to Sectionals | 2024-07-28 | 2024 LE Age Group and Senior LC Championships venue |
| 800 Freestyle | LCM | 9:55.10 | BB+4.31s to A·+44.31s to Sectionals | 2024-07-27 | 2024 LE Age Group and Senior LC Championships venue |
| 50 Backstroke | LCM | 35.68 | B+0.99s to BB·+6.99s to Sectionals | 2024-07-28 | 2024 LE Age Group and Senior LC Championships venue |
| 100 Backstroke | LCM | 1:17.73 | B+4.64s to BB·+13.34s to Sectionals | 2024-07-14 | LSSC Avon Classic venue |
| 200 Backstroke | LCM | 2:44.57 | B+5.28s to BB·+24.78s to Sectionals | 2023-07-08 | LSSC Avon Classic venue |
| 50 Butterfly | LCM | 30.96 | BB+0.77s to A·+3.57s to Sectionals | 2024-07-26 | 2024 LE Age Group and Senior LC Championships venue |
| 100 Butterfly | LCM | 1:20.52 | +4.53s to B·+19.03s to Sectionals | 2024-06-30 | 2024 54th FREEDLANDER MEET venue |
| 200 Individual Medley | LCM | 3:31.11 | +37.82s to B·+71.72s to Sectionals | 2021-07-10 | LSSC Avon Classic venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 24.16 | flying | 200 Free Relay (leg 3) | 2024-02-11 | 2024 Lakewood Sectional Championship |
| 100 Freestyle | SCY | 52.26 | flying | 400 Free Relay (leg 2) | 2024-02-11 | 2024 Lakewood Sectional Championship |
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 · LCM
1311 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:46.33 | 625 |
| 200 BK LCM | 2:44.57 | 458 |
| 200 IM LCM | 3:31.11 | 228 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 17-18 · SCY
2286 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:54.46 | 670 |
| 100 BK SCY | 1:03.38 | 458 |
| 100 BR SCY | 2:21.98 | 61 |
| 100 FL SCY | 59.20 | 570 |
| 200 IM SCY | 2:16.90 | 527 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 52.43
Front half 24.84s · back half 27.59s
200 Freestyle SCY 1:54.46
Front half 54.69s · back half 59.77s
500 Freestyle SCY 5:07.29
Front half 149.72s · back half 157.57s
1000 Freestyle SCY 11:41.01
1650 Freestyle SCY 19:15.28
100 Backstroke SCY 1:03.38
Front half 31.20s · back half 32.18s
100 Breaststroke SCY 2:21.98
Front half 65.40s · back half 76.58s
100 Butterfly SCY 59.20
Front half 27.64s · back half 31.56s
100 Individual Medley SCY 1:02.38
Front half 27.77s · back half 34.61s
200 Individual Medley SCY 2:16.90
Front half 62.95s · back half 73.95s
100 Freestyle LCM 1:02.74
Front half 30.25s · back half 32.49s
200 Freestyle LCM 2:15.77
Front half 63.62s · back half 72.15s
400 Freestyle LCM 4:46.33
Front half 140.28s · back half 146.05s
800 Freestyle LCM 9:55.10
Front half 294.92s · back half 300.18s
100 Backstroke LCM 1:17.73
Front half 37.64s · back half 40.09s
200 Backstroke LCM 2:44.57
Front half 80.94s · back half 83.63s
100 Butterfly LCM 1:20.52
Front half 35.10s · back half 45.42s
200 Individual Medley LCM 3:31.11
Front half 102.54s · back half 108.57s
Progression
Faster times are higher. One card per event, all courses & history.