Serena Zhao

Fage 16BDGU300BATS

182 plausible swims · 30 meets · 2020-03-06 → 2026-06-26

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	26.36	A+0.07s to AA	2024-03-01	2024 Gulf 13 & Over Champs (SHRK)
100 Freestyle	SCY	57.08	A+0.09s to AA	2024-12-08	2024 Gulf Age Group Championships venue
200 Freestyle	SCY	2:06.29	A+3.60s to AA	2024-03-01	2024 Gulf 13 & Over Champs (SHRK)
500 Freestyle	SCY	5:47.92	BB+2.83s to A	2024-02-16	2024 Gulf 14 & Under Champs (DADS)
1000 Freestyle	SCY	12:13.53	BB+15.04s to A	2024-01-14	2024 LSST January Frosty Open Meet venue
50 Backstroke	SCY	30.46	BB+0.17s to A	2024-03-01	2024 Gulf 13 & Over Champs (SHRK) slow pool
100 Backstroke	SCY	1:03.50	A+1.91s to AA	2024-03-01	2024 Gulf 13 & Over Champs (SHRK)
200 Backstroke	SCY	2:17.47	A+3.98s to AA	2025-03-01	2025 Gulf 13 & Over Champs (PEAK) fast pool
50 Breaststroke	SCY	34.88	A+0.99s to AA	2024-03-01	2024 Gulf 13 & Over Champs (SHRK)
100 Breaststroke	SCY	1:15.63	BB+1.44s to A	2025-03-01	2025 Gulf 13 & Over Champs (PEAK) fast pool
200 Breaststroke	SCY	2:43.05	BB+2.36s to A	2024-09-28	Texas Elite IMX Invite 2024 venue
50 Butterfly	SCY	29.53	A+0.74s to AA	2025-01-01	Central Swim Houston
100 Butterfly	SCY	1:04.80	BB+0.71s to A	2024-12-07	2024 Gulf Age Group Championships venue
200 Butterfly	SCY	2:28.41	BB+5.82s to A	2024-09-29	Texas Elite IMX Invite 2024 venue
200 Individual Medley	SCY	2:20.69	A+3.30s to AA	2024-12-08	2024 Gulf Age Group Championships venue
400 Individual Medley	SCY	4:59.30	A+5.11s to AA	2024-12-06	2024 Gulf Age Group Championships venue
50 Freestyle	LCM	29.23	AA+0.64s to AAA	2024-05-04	2024 AQUA & PACE May LC Open
100 Freestyle	LCM	1:07.11	A+2.62s to AA	2024-07-14	2024 Long Course Gulf Age Group Championships venue
200 Freestyle	LCM	2:23.14	A+3.85s to AA	2025-05-16	2025 Fleet Summer Classic
400 Freestyle	LCM	5:23.84	BB+16.15s to A	2024-05-24	CATS Spring into Summer Open venue
50 Backstroke	LCM	35.40	BB+0.01s to A	2024-05-24	CATS Spring into Summer Open venue
100 Backstroke	LCM	1:14.60	A+2.71s to AA	2024-06-29	2024 Fleet Last Chance Meet venue
200 Backstroke	LCM	2:40.94	A+6.65s to AA	2024-05-26	CATS Spring into Summer Open venue
50 Breaststroke	LCM	41.26	BB+1.07s to A	2025-06-06	2025 BATS June Invite
100 Breaststroke	LCM	1:28.61	BB+3.52s to A	2025-01-01	Central Swim Houston
50 Butterfly	LCM	33.51	A+1.32s to AA	2026-04-11	2026 TEST Spring Splash
100 Butterfly	LCM	1:16.79	BB+4.40s to A	2024-06-29	2024 Fleet Last Chance Meet venue
200 Butterfly	LCM	2:57.22	B+2.53s to BB	2025-05-16	2025 Fleet Summer Classic
200 Individual Medley	LCM	2:30.93	AA+0.24s to AAA	2025-06-27	2025 Fleet Last Chance
400 Individual Medley	LCM	5:59.16	BB+9.47s to A	2025-06-06	2025 BATS June Invite

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.

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

3951 points (6/6 events)

Event	Time	Points
500 FR SCY	5:47.92	646
200 BK SCY	2:17.47	693
200 BR SCY	2:43.05	626
200 FL SCY	2:28.41	588
200 IM SCY	2:20.69	694
400 IM SCY	4:59.30	704

IMR 15-16 · LCM

3361 points (5/5 events)

Event	Time	Points
200 FR LCM	2:23.14	696
100 BK LCM	1:14.60	667
100 BR LCM	1:28.61	582
100 FL LCM	1:16.79	559
200 IM LCM	2:30.93	857

Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.

PR splits

100 Freestyle SCY 57.08 RT 0.43s

27.38

29.70

Front half 27.38s · back half 29.70s

1000 Freestyle SCY 12:13.53

31.85

35.10

36.21

36.13

36.59

36.89

37.24

37.34

37.59

36.90

37.06

37.71

36.92

37.18

37.50

37.70

37.55

36.94

37.01

36.12

Front half 361.84s · back half 371.69s

200 Backstroke SCY 2:17.47

32.30

34.61

35.54

35.02

Front half 66.91s · back half 70.56s

100 Breaststroke SCY 1:15.63

36.44

39.19

Front half 36.44s · back half 39.19s

200 Breaststroke SCY 2:43.05

37.02

41.48

42.49

42.06

Front half 78.50s · back half 84.55s

100 Butterfly SCY 1:04.80 RT 0.72s

30.17

34.63

Front half 30.17s · back half 34.63s

200 Butterfly SCY 2:28.41

32.51

36.87

39.99

39.04

Front half 69.38s · back half 79.03s

200 Individual Medley SCY 2:20.69 RT 0.47s

30.78

35.97

41.05

32.89

Front half 66.75s · back half 73.94s

400 Individual Medley SCY 4:59.30 RT 0.68s

30.83

35.86

37.74

37.76

43.37

44.26

35.86

33.62

Front half 142.19s · back half 157.11s

400 Freestyle LCM 5:23.84

35.56

39.56

41.08

41.24

41.90

41.63

42.21

40.66

Front half 157.44s · back half 166.40s

100 Backstroke LCM 1:14.60

36.23

38.37

Front half 36.23s · back half 38.37s

200 Backstroke LCM 2:40.94

38.45

40.36

41.22

40.91

Front half 78.81s · back half 82.13s

100 Butterfly LCM 1:16.79

34.63

42.16

Front half 34.63s · back half 42.16s

Reaction time

fastest 0.43s average 0.568s slowest 0.72s 5 electronic starts

Start reaction over time faster starts higher

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.

50 Freestyle SCY 26.36 18 swims

100 Freestyle SCY 57.08 12 swims

200 Freestyle SCY 2:06.29 9 swims

500 Freestyle SCY 5:47.92 2 swims

1000 Freestyle SCY 12:13.53 1 swim

50 Backstroke SCY 30.46 2 swims

100 Backstroke SCY 1:03.50 13 swims

200 Backstroke SCY 2:17.47 15 swims

50 Breaststroke SCY 34.88 3 swims

100 Breaststroke SCY 1:15.63 10 swims

200 Breaststroke SCY 2:43.05 4 swims

50 Butterfly SCY 29.53 1 swim

100 Butterfly SCY 1:04.80 8 swims

200 Butterfly SCY 2:28.41 1 swim

200 Individual Medley SCY 2:20.69 8 swims

400 Individual Medley SCY 4:59.30 4 swims

50 Freestyle LCM 29.23 14 swims

100 Freestyle LCM 1:07.11 7 swims

200 Freestyle LCM 2:23.14 5 swims

400 Freestyle LCM 5:23.84 1 swim

50 Backstroke LCM 35.40 3 swims

100 Backstroke LCM 1:14.60 12 swims

200 Backstroke LCM 2:40.94 8 swims

50 Breaststroke LCM 41.26 2 swims

100 Breaststroke LCM 1:28.61 3 swims

50 Butterfly LCM 33.51 2 swims

100 Butterfly LCM 1:16.79 4 swims

200 Butterfly LCM 2:57.22 1 swim

200 Individual Medley LCM 2:30.93 8 swims

400 Individual Medley LCM 5:59.16 1 swim