swimMackenzie Tien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.15 | BB+1.76s to A·+3.06s to Sectionals | 2025-02-23 | 2025 Pacific Committee SC Championship venue |
| 100 Freestyle | SCY | 1:03.46 | BB+3.97s to A·+6.97s to Sectionals | 2025-02-21 | 2025 Pacific Committee SC Championship venue |
| 200 Freestyle | SCY | 2:23.30 | B+4.61s to BB·+20.91s to Sectionals | 2024-09-28 | 2024 CA LKWD September Closed Invite slow pool |
| 500 Freestyle | SCY | 6:39.43 | B+25.54s to BB·+70.04s to Sectionals | 2021-05-02 | 2021 UT Red Cliffs Swim Classic venue |
| 50 Breaststroke | SCY | 41.40 | +0.11s to B·+11.61s to Futures | 2021-05-02 | 2021 UT Red Cliffs Swim Classic venue |
| 100 Breaststroke | SCY | 1:22.26 | B+1.87s to BB·+11.67s to Sectionals | 2025-02-21 | 2025 Pacific Committee SC Championship venue |
| 200 Breaststroke | SCY | 3:01.30 | B+7.21s to BB·+28.51s to Sectionals | 2024-09-29 | 2024 CA LKWD September Closed Invite slow pool |
| 100 Butterfly | SCY | 1:07.45 | BB+3.36s to A·+6.36s to Sectionals | 2025-02-23 | 2025 Pacific Committee SC Championship venue |
| 200 Butterfly | SCY | 2:31.46 | BB+8.87s to A·+15.27s to Sectionals | 2025-02-22 | 2025 Pacific Committee SC Championship venue |
| 100 Individual Medley | SCY | 1:16.90 | 2021-05-01 | 2021 UT Red Cliffs Swim Classic venue | |
| 200 Individual Medley | SCY | 2:37.77 | B+2.38s to BB·+21.28s to Sectionals | 2024-10-20 | 2024 CA Lakewood Halloween Invite slow pool |
| 400 Individual Medley | SCY | 5:32.90 | B+0.31s to BB·+41.31s to Sectionals | 2024-10-19 | 2024 CA Lakewood Halloween Invite slow pool |
| 50 Freestyle | LCM | 35.29 | B+1.50s to BB·+5.70s to Sectionals | 2025-04-05 | Rose Bowl Aquatics Red vs Black Intrasquad venue |
| 200 Freestyle | LCM | 2:38.29 | B+0.90s to BB·+19.30s to Sectionals | 2024-07-26 | 2024 CA SCS/ BREA Summer A/G Champs slow pool |
| 50 Butterfly | LCM | 36.84 | B+0.45s to BB·+7.35s to Futures | 2025-04-05 | Rose Bowl Aquatics Red vs Black Intrasquad venue |
| 100 Butterfly | LCM | 1:17.77 | BB+5.38s to A·+8.48s to Sectionals | 2024-07-27 | 2024 CA SCS/ BREA Summer A/G Champs slow pool |
| 200 Butterfly | LCM | 2:57.23 | B+2.54s to BB·+22.94s to Sectionals | 2024-07-25 | 2024 CA SCS/ BREA Summer A/G Champs slow pool |
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.
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 15-16 · SCY
2438 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:39.43 | 427 |
| 200 BR SCY | 3:01.30 | 455 |
| 200 FL SCY | 2:31.46 | 553 |
| 200 IM SCY | 2:37.77 | 492 |
| 400 IM SCY | 5:32.90 | 511 |
| 200 BK SCY | — | 0 |
IMR 15-16 · SCY
2012 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:23.30 | 474 |
| 100 BR SCY | 1:22.26 | 481 |
| 100 FL SCY | 1:07.45 | 565 |
| 200 IM SCY | 2:37.77 | 492 |
| 100 BK 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 1:03.46
Front half 30.42s · back half 33.04s
200 Freestyle SCY 2:23.30
Front half 69.99s · back half 73.31s
500 Freestyle SCY 6:39.43
Front half 198.66s · back half 200.77s
100 Breaststroke SCY 1:22.26
Front half 38.93s · back half 43.33s
200 Breaststroke SCY 3:01.30
Front half 87.20s · back half 94.10s
100 Butterfly SCY 1:07.45
Front half 31.16s · back half 36.29s
200 Butterfly SCY 2:31.46
Front half 70.01s · back half 81.45s
100 Individual Medley SCY 1:16.90
Front half 36.34s · back half 40.56s
200 Individual Medley SCY 2:37.77
Front half 74.29s · back half 83.48s
400 Individual Medley SCY 5:32.90
Front half 160.46s · back half 172.44s
200 Freestyle LCM 2:38.29 RT 0.61s
Front half 77.47s · back half 80.82s
200 Butterfly LCM 2:57.23 RT 0.62s
Front half 80.28s · back half 96.95s
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.