Derry Zhao

Mage 13CADARE

129 plausible swims · 22 meets · 2024-07-07 → 2026-06-28

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	29.80	B+0.91s to BB	2025-12-07	2025 CA Trident Swim Club SC Dec Meet venue
100 Freestyle	SCY	1:05.20	B+2.51s to BB	2026-02-14	2026 Metro Champs @ La Mirada Armada venue
200 Freestyle	SCY	2:23.05	B+5.86s to BB	2026-02-13	2026 Metro Champs @ La Mirada Armada venue
500 Freestyle	SCY	7:30.34	+51.65s to B	2024-10-20	2024 CA Lakewood Halloween Invite slow pool
50 Backstroke	SCY	37.44	+2.05s to B	2026-02-13	2026 Metro Champs @ La Mirada Armada venue
100 Backstroke	SCY	1:19.60	+5.21s to B	2026-01-19	2026 CA Trident Swim Club Winter Invite - cop venue
50 Breaststroke	SCY	40.86	+0.37s to B	2026-02-14	2026 Metro Champs @ La Mirada Armada venue
100 Breaststroke	SCY	1:31.42	+7.13s to B	2026-02-15	2026 Metro Champs @ La Mirada Armada venue
50 Butterfly	SCY	34.10	B+1.91s to BB	2025-09-14	2025 DARE Launch & Lunge Season Opener venue
100 Butterfly	SCY	1:14.99	+1.20s to B	2025-10-11	2025 CA Cerritos SC Swim Meet venue
100 Individual Medley	SCY	1:18.60		2025-10-11	2025 CA Cerritos SC Swim Meet venue
200 Individual Medley	SCY	2:43.96	B+11.07s to BB	2026-02-14	2026 Metro Champs @ La Mirada Armada venue
50 Freestyle	LCM	32.56	BB+1.97s to A	2026-05-23	2026 Lakewood May Lc Invite venue
100 Freestyle	LCM	1:12.02	BB+4.93s to A	2026-05-24	2026 Lakewood May Lc Invite venue
200 Freestyle	LCM	2:41.47	B+3.58s to BB	2026-05-23	2026 Lakewood May Lc Invite venue
400 Freestyle	LCM	5:54.09	B+19.90s to BB	2026-06-27	2026 SAND John Sullivan Firecracker Inv fast pool
50 Backstroke	LCM	46.06	+4.87s to B	2025-05-31	2025 CA Downey Dolphins Swim Team LC Meet slow pool
100 Backstroke	LCM	1:31.34	+3.95s to B	2026-04-12	Armada Lc April Meet -April 11-12-2026 venue
50 Breaststroke	LCM	44.67	B+2.08s to BB	2026-06-28	2026 SAND John Sullivan Firecracker Inv fast pool
100 Breaststroke	LCM	1:36.49	B+6.20s to BB	2026-06-27	2026 SAND John Sullivan Firecracker Inv fast pool
50 Butterfly	LCM	38.51	B+2.22s to BB	2026-05-24	2026 Lakewood May Lc Invite venue
100 Butterfly	LCM	1:27.38	+3.29s to B	2026-04-11	Armada Lc April Meet -April 11-12-2026 venue
200 Individual Medley	LCM	3:00.91	B+4.12s to BB	2026-05-24	2026 Lakewood May Lc Invite venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.

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	LCM	38.92	flying	200 Medley Relay (leg 3)	2025-06-13	2025 SCS June AG Invite @ La Mirada Armada

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 13-14 · LCM

837 points (2/6 events — incomplete)

Event	Time	Points
400 FR LCM	5:54.09	401
200 IM LCM	3:00.91	436
200 BK LCM	—	0
200 BR LCM	—	0
200 FL LCM	—	0
400 IM LCM	—	0

IMR 13-14 · LCM

1915 points (5/5 events)

Event	Time	Points
200 FR LCM	2:41.47	441
100 BK LCM	1:31.34	324
100 BR LCM	1:36.49	386
100 FL LCM	1:27.38	328
200 IM LCM	3:00.91	436

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

PR splits

100 Freestyle SCY 1:05.20

31.07

34.13

Front half 31.07s · back half 34.13s

200 Freestyle SCY 2:23.05

32.08

36.28

37.68

37.01

Front half 68.36s · back half 74.69s

500 Freestyle SCY 7:30.34

39.50

44.65

45.56

46.73

47.28

47.37

46.44

45.77

45.96

41.08

Front half 223.72s · back half 226.62s

100 Backstroke SCY 1:19.60

39.01

40.59

Front half 39.01s · back half 40.59s

100 Breaststroke SCY 1:31.42

43.64

47.78

Front half 43.64s · back half 47.78s

100 Butterfly SCY 1:14.99

35.54

39.45

Front half 35.54s · back half 39.45s

100 Individual Medley SCY 1:18.60

36.50

42.10

Front half 36.50s · back half 42.10s

200 Individual Medley SCY 2:43.96

35.78

42.18

48.25

37.75

Front half 77.96s · back half 86.00s

200 Freestyle LCM 2:41.47

78.43

83.04

Front half 78.43s · back half 83.04s

400 Freestyle LCM 5:54.09

37.91

43.98

45.48

45.96

47.14

46.10

45.41

42.11

Front half 173.33s · back half 180.76s

100 Backstroke LCM 1:31.34

43.72

47.62

Front half 43.72s · back half 47.62s

100 Breaststroke LCM 1:36.49

47.07

49.42

Front half 47.07s · back half 49.42s

100 Butterfly LCM 1:27.38

39.65

47.73

Front half 39.65s · back half 47.73s

200 Individual Medley LCM 3:00.91

86.24

94.67

Front half 86.24s · back half 94.67s

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 29.80 11 swims

100 Freestyle SCY 1:05.20 10 swims

200 Freestyle SCY 2:23.05 9 swims

500 Freestyle SCY 7:30.34 1 swim

50 Backstroke SCY 37.44 8 swims

100 Backstroke SCY 1:19.60 6 swims

50 Breaststroke SCY 40.86 6 swims

100 Breaststroke SCY 1:31.42 4 swims

50 Butterfly SCY 34.10 11 swims

100 Butterfly SCY 1:14.99 13 swims

100 Individual Medley SCY 1:18.60 7 swims

200 Individual Medley SCY 2:43.96 6 swims

50 Freestyle LCM 32.56 5 swims

100 Freestyle LCM 1:12.02 5 swims

200 Freestyle LCM 2:41.47 6 swims

400 Freestyle LCM 5:54.09 1 swim

50 Backstroke LCM 46.06 3 swims

100 Backstroke LCM 1:31.34 1 swim

50 Breaststroke LCM 44.67 3 swims

100 Breaststroke LCM 1:36.49 2 swims

50 Butterfly LCM 38.51 3 swims

100 Butterfly LCM 1:27.38 6 swims

200 Individual Medley LCM 3:00.91 2 swims