Chang He
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.30 | AA+0.61s to AAA | 2018-03-03 | 2018 IE Short Course Championships fast pool |
| 100 Freestyle | SCY | 49.37 | AA+1.68s to AAA | 2016-10-30 | GMSC Trick-or-Treat Pentathlon 2016 fast pool |
| 200 Freestyle | SCY | 1:51.26 | A+1.07s to AA | 2017-11-17 | 2017 IES CAST FALL SPLASH |
| 100 Backstroke | SCY | 56.57 | BB+0.38s to A | 2018-03-03 | 2018 IE Short Course Championships fast pool |
| 200 Backstroke | SCY | 2:06.41 | BB+2.62s to A | 2018-03-04 | 2018 IE Short Course Championships fast pool |
| 100 Breaststroke | SCY | 58.72 | AAA+2.53s to AAAA | 2016-11-20 | 2016 CAST Fall Splash venue |
| 200 Breaststroke | SCY | 2:13.61 | AA+5.62s to AAA | 2017-11-18 | 2017 IE MRA Thankswimming Open |
| 100 Butterfly | SCY | 56.24 | BB+0.05s to A | 2016-10-16 | 2016 IMX Fall Challenge venue |
| 200 Individual Medley | SCY | 2:03.87 | A+2.38s to AA | 2016-10-15 | 2016 IMX Fall Challenge venue |
| 50 Freestyle | LCM | 25.81 | AA+0.72s to AAA | 2017-06-03 | 2017 TRI-CITY OPEN venue |
| 100 Freestyle | LCM | 58.20 | A+0.51s to AA | 2016-06-03 | 2016 TRI-CITY OPEN venue |
| 200 Freestyle | LCM | 2:10.82 | A+4.63s to AA | 2016-06-05 | 2016 TRI-CITY OPEN venue |
| 400 Freestyle | LCM | 4:47.24 | BB+6.55s to A | 2017-06-18 | 2017 IE SAS Summer Solstice Swim Meet venue |
| 100 Backstroke | LCM | 1:08.12 | BB+1.13s to A | 2016-06-19 | 2016 IE SAS Summer Solstice Swim Meet venue |
| 200 Backstroke | LCM | 2:29.76 | BB+3.87s to A | 2017-06-17 | 2017 IE SAS Summer Solstice Swim Meet venue |
| 100 Breaststroke | LCM | 1:10.87 | AA+2.48s to AAA | 2017-06-18 | 2017 IE SAS Summer Solstice Swim Meet venue |
| 200 Breaststroke | LCM | 2:34.93 | AA+5.24s to AAA | 2017-06-03 | 2017 TRI-CITY OPEN venue |
| 100 Butterfly | LCM | 1:05.44 | BB+1.15s to A | 2016-06-05 | 2016 TRI-CITY OPEN venue |
| 200 Butterfly | LCM | 2:38.34 | B+2.55s to BB | 2017-06-18 | 2017 IE SAS Summer Solstice Swim Meet venue |
| 200 Individual Medley | LCM | 2:25.23 | A+3.34s to AA | 2017-06-16 | 2017 IE SAS Summer Solstice Swim Meet venue |
| 400 Individual Medley | LCM | 5:22.91 | BB+4.92s to A | 2017-06-17 | 2017 IE SAS Summer Solstice Swim Meet venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 Breaststroke | SCY | 27.74 | flying | 200 Medley Relay (leg 2) | 2017-10-14 | 2017 IE IMX Fall Challenge |
| 100 Breaststroke | LCM | 1:14.37 | flying | 400 Medley Relay (leg 2) | 2016-06-18 | 2016 IE SAS Summer Solstice Swim Meet |
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
3812 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:47.24 | 619 |
| 200 BK LCM | 2:29.76 | 608 |
| 200 BR LCM | 2:34.93 | 768 |
| 200 FL LCM | 2:38.34 | 495 |
| 200 IM LCM | 2:25.23 | 700 |
| 400 IM LCM | 5:22.91 | 622 |
IMR 17-18 · SCY
3617 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:51.26 | 730 |
| 100 BK SCY | 56.57 | 645 |
| 100 BR SCY | 58.72 | 866 |
| 100 FL SCY | 56.24 | 665 |
| 200 IM SCY | 2:03.87 | 711 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 49.37
Front half 23.62s · back half 25.75s
100 Backstroke SCY 56.57
Front half 27.32s · back half 29.25s
200 Backstroke SCY 2:06.41
100 Breaststroke SCY 58.72
Front half 27.35s · back half 31.37s
100 Butterfly SCY 56.24
Front half 26.10s · back half 30.14s
200 Individual Medley SCY 2:03.87
Front half 58.90s · back half 64.97s
200 Freestyle LCM 2:10.82
Front half 63.58s · back half 67.24s
400 Freestyle LCM 4:47.24
Front half 138.69s · back half 148.55s
100 Backstroke LCM 1:08.12
Front half 33.43s · back half 34.69s
200 Backstroke LCM 2:29.76
Front half 72.96s · back half 76.80s
100 Breaststroke LCM 1:10.87
Front half 33.95s · back half 36.92s
200 Breaststroke LCM 2:34.93
Front half 72.98s · back half 81.95s
200 Butterfly LCM 2:38.34
Front half 73.80s · back half 84.54s
200 Individual Medley LCM 2:25.23
Front half 69.60s · back half 75.63s
400 Individual Medley LCM 5:22.91
Front half 158.93s · back half 163.98s
Progression
Faster times are higher. One card per event, all courses & history.