swimZachary Blackford
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 34.97 | B+0.18s to BB·+12.58s to Sectionals | 2024-12-08 | 2024 NAAC Holiday Blastvenue |
| 100 Freestyle | SCY | 1:14.04 | BB+3.85s to A·+25.55s to Sectionals | 2025-03-23 | 2025 MD LSC / NBAC 11 & Over Championshipsfast pool |
| 200 Freestyle | SCY | 2:43.66 | BB+11.97s to A·+57.37s to Sectionals | 2025-03-22 | 2025 MD LSC / NBAC 11 & Over Championshipsfast pool |
| 500 Freestyle | SCY | 7:40.09 | B+6.00s to BB·+172.70s to Sectionals | 2024-12-22 | 2024 Merritt Distance Meetvenue |
| 50 Backstroke | SCY | 40.40 | BB+2.61s to A·+16.71s to Futures | 2025-03-23 | 2025 MD LSC / NBAC 11 & Over Championshipsfast pool |
| 100 Backstroke | SCY | 1:27.87 | BB+7.98s to A·+33.38s to Sectionals | 2025-03-22 | 2025 MD LSC / NBAC 11 & Over Championshipsfast pool |
| 50 Breaststroke | SCY | 51.09 | B+3.30s to BB·+24.80s to Futures | 2025-03-22 | 2025 MD LSC / NBAC 11 & Over Championshipsfast pool |
| 100 Breaststroke | SCY | 1:49.46 | B+5.87s to BB·+47.97s to Sectionals | 2024-12-07 | 2024 NAAC Holiday Blastvenue |
| 50 Butterfly | SCY | 43.20 | B+1.91s to BB·+20.31s to Futures | 2024-12-07 | 2024 NAAC Holiday Blastvenue |
| 100 Butterfly | SCY | 1:43.71 | B+4.42s to BB·+50.52s to Sectionals | 2024-03-10 | 2024 Speedo Maryland Junior Championship - Sivenue |
| 100 Individual Medley | SCY | 1:29.07 | BB+9.18s to A | 2024-12-08 | 2024 NAAC Holiday Blastvenue |
| 100 Freestyle | LCM | 1:37.00 | B+6.31s to BB·+41.51s to Sectionals | 2023-06-17 | 2023 ASC Independence Meetvenue |
| 200 Freestyle | LCM | 3:51.76 | +14.67s to B·+110.47s to Sectionals | 2023-04-22 | 2023 EST Spring Into Long Courseslow pool |
| 100 Breaststroke | LCM | 2:28.68 | +15.59s to B·+78.99s to Sectionals | 2023-04-22 | 2023 EST Spring Into Long Courseslow pool |
| 50 Butterfly | LCM | 57.19 | +4.90s to B·+30.90s to Futures | 2023-06-17 | 2023 ASC Independence Meetvenue |
| 200 Individual Medley | LCM | 4:12.48 | +2.59s to B·+116.29s to Sectionals | 2023-06-17 | 2023 ASC Independence Meetvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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.
IMX / IMR
IMX 10 & under · SCY
1691 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:43.66 | 532 |
| 100 BK SCY | 1:27.87 | 483 |
| 100 BR SCY | 1:49.46 | 372 |
| 100 FL SCY | 1:43.71 | 304 |
| 200 IM SCY | — | 0 |
IMR 10 & under · SCY
2259 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:14.04 | 550 |
| 50 BK SCY | 40.40 | 505 |
| 50 BR SCY | 51.09 | 361 |
| 50 FL SCY | 43.20 | 362 |
| 100 IM SCY | 1:29.07 | 481 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:14.04
Front half 35.56s · back half 38.48s
200 Freestyle SCY 2:43.66
Front half 79.80s · back half 83.86s
500 Freestyle SCY 7:40.09
Front half 224.23s · back half 235.86s
100 Backstroke SCY 1:27.87
Front half 42.58s · back half 45.29s
100 Breaststroke SCY 1:49.46
Front half 53.42s · back half 56.04s
100 Individual Medley SCY 1:29.07
Front half 40.42s · back half 48.65s
100 Freestyle LCM 1:37.00
Front half 46.55s · back half 50.45s
200 Freestyle LCM 3:51.76
Front half 106.09s · back half 125.67s
100 Breaststroke LCM 2:28.68
200 Individual Medley LCM 4:12.48
Front half 123.75s · back half 128.73s
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.
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.