Yi Zheng

Mage 16CZINKYMIMTORSECSCKYKYAPACKUNUNATTUNKY

313 plausible swims · 39 meets · 2016-01-15 → 2026-03-29

Personal records

Event	Course	Best	Cut	Date	Meet
25 Freestyle	SCY	1:14.75		2016-01-15	2016 SE Pilot Flying J January Classic
50 Freestyle	SCY	22.50	AA+0.11s to AAA	2023-11-05	2023 Kentucky Aquatics Autumn Classic venue
100 Freestyle	SCY	1:00.87	B+2.98s to BB	2020-02-16	2020 Seahawk Dare to Care Winter Invite venue
200 Freestyle	SCY	1:51.33	AA+4.24s to AAA	2023-09-23	RACE Back to School venue
500 Freestyle	SCY	4:22.21	AAAA	2026-03-28	2026 Four Corner Speedo Sectionals - Carmel - fast pool
25 Backstroke	SCY	25.40		2016-01-15	2016 SE Pilot Flying J January Classic
50 Backstroke	SCY	30.93	B+1.34s to BB	2020-01-04	2020 Mid States All Star Championships venue
100 Backstroke	SCY	54.94	AA+1.65s to AAA	2023-09-23	RACE Back to School venue
200 Backstroke	SCY	2:04.26	A+2.27s to AA	2023-09-24	RACE Back to School venue
25 Breaststroke	SCY	22.23		2018-01-12	2018 SE Pilot Flying J January Classic
50 Breaststroke	SCY	37.54	+0.85s to B	2020-02-14	2020 Seahawk Dare to Care Winter Invite
100 Breaststroke	SCY	59.51	AAA+1.72s to AAAA	2023-10-08	2023 SwimVille_USA Jack Thompson Classic venue
200 Breaststroke	SCY	2:00.14	AAAA	2026-03-26	2026 Four Corner Speedo Sectionals - Carmel - fast pool
50 Butterfly	SCY	30.02	B+0.53s to BB	2020-02-14	2020 Seahawk Dare to Care Winter Invite
100 Butterfly	SCY	48.74	AAAA	2026-03-28	2026 Four Corner Speedo Sectionals - Carmel - fast pool
200 Butterfly	SCY	1:44.91	AAAA	2026-03-26	2026 Four Corner Speedo Sectionals - Carmel - fast pool
100 Individual Medley	SCY	1:06.61		2020-01-05	2020 Mid States All Star Championships venue
200 Individual Medley	SCY	1:45.04	AAAA	2026-03-29	2026 Four Corner Speedo Sectionals - Carmel - fast pool
400 Individual Medley	SCY	3:52.24	AAAA	2026-03-27	2026 Four Corner Speedo Sectionals - Carmel - fast pool
50 Freestyle	LCM	26.86	AA+0.97s to AAA	2023-07-16	2023 Cardinal Aquatics Summer Last Chance venue
100 Freestyle	LCM	55.46	AAA+1.57s to AAAA	2024-06-30	2024 CW Eric Namesnik Memorial Open venue
200 Freestyle	LCM	1:53.96	AAAA	2025-06-19	2025 Synergy Dryland Summer Sizzler venue
400 Freestyle	LCM	4:04.53	AAAA	2025-03-29	2025 Central Zone East Spring Speedo Sectiona venue
800 Freestyle	LCM	9:34.26	A+2.97s to AA	2022-07-24	2022 KY 13 & Over LCM State Championship venue
50 Backstroke	LCM	32.82	BB+0.33s to A	2021-07-22	2021 Kentucky Swimming LC State Championship
100 Backstroke	LCM	1:10.13	BB+2.04s to A	2022-05-15	Kentucky Aquatics Derby Classic Meet 2022 venue
200 Backstroke	LCM	2:06.18	AAAA	2025-08-01	2025 Speedo Junior National Championships fast pool
50 Breaststroke	LCM	46.41	+4.52s to B	2019-07-13	41st Annual Seahawk Invitational 2019 venue
100 Breaststroke	LCM	1:04.02	AAAA	2025-07-30	2025 Speedo Junior National Championships fast pool
200 Breaststroke	LCM	2:16.40	AAAA	2025-08-02	2025 Speedo Junior National Championships fast pool
50 Butterfly	LCM	30.45	A+0.96s to AA	2021-07-22	2021 Kentucky Swimming LC State Championship
100 Butterfly	LCM	55.94	AAAA	2025-06-19	2025 Synergy Dryland Summer Sizzler venue
200 Butterfly	LCM	2:00.68	AAAA	2025-07-30	2025 Speedo Junior National Championships fast pool
200 Individual Medley	LCM	2:02.14	AAAA	2025-08-03	2025 Speedo Junior National Championships fast pool
400 Individual Medley	LCM	4:19.95	AAAA	2025-07-31	2025 Speedo Junior National Championships fast pool

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.

Fastest relay legs

Leg	Course	Time	Start	Relay	Date	Meet
50 Butterfly	SCY	30.23	flying	200 Medley Relay (leg 3)	2020-01-04	2020 Mid States All Star Championships
50 Freestyle	LCM	28.19	flying	200 Free Relay (leg 4)	2022-07-24	2022 KY 13 & Over LCM State Championship
50 Freestyle	LCM	23.60	flying	200 Medley Relay (leg 4)	2025-08-01	2025 Speedo Junior National Championships
100 Freestyle	LCM	51.45	flying	400 Free Relay (leg 3)	2025-08-02	2025 Speedo Junior National Championships
100 Breaststroke	LCM	1:03.73	flying	400 Medley Relay (leg 2)	2025-08-03	2025 Speedo Junior National Championships
50 Butterfly	LCM	37.49	flying	200 Medley Relay (leg 3)	2019-07-21	2019 KY 12 & U LCM State 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 15-16 · LCM

6549 points (6/6 events)

Event	Time	Points
400 FR LCM	4:04.53	1076
200 BK LCM	2:06.18	1073
200 BR LCM	2:16.40	1100
200 FL LCM	2:00.68	1100
200 IM LCM	2:02.14	1100
400 IM LCM	4:19.95	1100

IMR 15-16 · LCM

4996 points (5/5 events)

Event	Time	Points
200 FR LCM	1:53.96	1095
100 BK LCM	1:10.13	610
100 BR LCM	1:04.02	1100
100 FL LCM	55.94	1091
200 IM LCM	2:02.14	1100

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

PR splits

100 Freestyle SCY 1:00.87

29.14

31.73

Front half 29.14s · back half 31.73s

200 Freestyle SCY 1:51.33

25.02

28.08

29.00

29.23

Front half 53.10s · back half 58.23s

500 Freestyle SCY 4:22.21

22.88

25.99

26.97

26.79

26.39

26.57

26.70

27.15

27.11

25.66

Front half 129.02s · back half 133.19s

100 Backstroke SCY 54.94

26.48

28.46

Front half 26.48s · back half 28.46s

200 Backstroke SCY 2:04.26

28.20

31.71

32.52

31.83

Front half 59.91s · back half 64.35s

100 Breaststroke SCY 59.51

28.11

31.40

Front half 28.11s · back half 31.40s

200 Breaststroke SCY 2:00.14

26.69

29.93

32.08

31.44

Front half 56.62s · back half 63.52s

100 Butterfly SCY 48.74

22.80

25.94

Front half 22.80s · back half 25.94s

200 Butterfly SCY 1:44.91

22.69

26.45

27.59

28.18

Front half 49.14s · back half 55.77s

100 Individual Medley SCY 1:06.61

30.67

35.94

Front half 30.67s · back half 35.94s

200 Individual Medley SCY 1:45.04

22.58

26.77

30.26

25.43

Front half 49.35s · back half 55.69s

400 Individual Medley SCY 3:52.24

23.67

27.31

29.69

29.51

33.03

32.91

28.60

27.52

Front half 110.18s · back half 122.06s

100 Freestyle LCM 55.46

26.59

28.87

Front half 26.59s · back half 28.87s

200 Freestyle LCM 1:53.96

26.08

29.63

29.46

28.79

Front half 55.71s · back half 58.25s

400 Freestyle LCM 4:04.53

27.16

30.87

31.62

31.88

30.59

31.51

30.75

30.15

Front half 121.53s · back half 123.00s

800 Freestyle LCM 9:34.26

31.72

37.74

36.61

36.74

36.92

36.82

36.88

36.83

36.85

35.97

36.31

36.33

35.89

35.12

34.11

33.42

Front half 290.26s · back half 284.00s

100 Backstroke LCM 1:10.13

34.11

36.02

Front half 34.11s · back half 36.02s

200 Backstroke LCM 2:06.18 RT 0.64s

29.59

32.47

32.18

31.94

Front half 62.06s · back half 64.12s

100 Breaststroke LCM 1:04.02 RT 0.66s

30.03

33.99

Front half 30.03s · back half 33.99s

200 Breaststroke LCM 2:16.40 RT 0.68s

31.41

35.08

35.12

34.79

Front half 66.49s · back half 69.91s

200 Butterfly LCM 2:00.68 RT 0.67s

27.09

30.74

31.62

31.23

Front half 57.83s · back half 62.85s

200 Individual Medley LCM 2:02.14 RT 0.66s

26.71

31.63

35.07

28.73

Front half 58.34s · back half 63.80s

400 Individual Medley LCM 4:19.95 RT 0.66s

27.25

31.27

34.49

33.82

35.99

36.94

31.61

28.58

Front half 126.83s · back half 133.12s

Reaction time

fastest 0.64s average 0.670s slowest 0.71s 10 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.

25 Freestyle SCY 1:14.75 1 swim

50 Freestyle SCY 22.50 13 swims

100 Freestyle SCY 1:00.87 12 swims

200 Freestyle SCY 1:51.33 11 swims

500 Freestyle SCY 4:22.21 4 swims

25 Backstroke SCY 25.40 1 swim

50 Backstroke SCY 30.93 13 swims

100 Backstroke SCY 54.94 12 swims

200 Backstroke SCY 2:04.26 1 swim

25 Breaststroke SCY 22.23 1 swim

50 Breaststroke SCY 37.54 10 swims

100 Breaststroke SCY 59.51 8 swims

200 Breaststroke SCY 2:00.14 4 swims

50 Butterfly SCY 30.02 9 swims

100 Butterfly SCY 48.74 12 swims

200 Butterfly SCY 1:44.91 5 swims

100 Individual Medley SCY 1:06.61 5 swims

200 Individual Medley SCY 1:45.04 15 swims

400 Individual Medley SCY 3:52.24 2 swims

50 Freestyle LCM 26.86 13 swims

100 Freestyle LCM 55.46 14 swims

200 Freestyle LCM 1:53.96 15 swims

400 Freestyle LCM 4:04.53 10 swims

800 Freestyle LCM 9:34.26 2 swims

50 Backstroke LCM 32.82 9 swims

100 Backstroke LCM 1:10.13 9 swims

200 Backstroke LCM 2:06.18 8 swims

50 Breaststroke LCM 46.41 4 swims

100 Breaststroke LCM 1:04.02 14 swims

200 Breaststroke LCM 2:16.40 9 swims

50 Butterfly LCM 30.45 9 swims

100 Butterfly LCM 55.94 20 swims

200 Butterfly LCM 2:00.68 12 swims

200 Individual Medley LCM 2:02.14 16 swims

400 Individual Medley LCM 4:19.95 9 swims