Leo Du

Mage 15CACCSIBLUECLSSHRZNUNUN-07

139 plausible swims · 22 meets · 2023-02-18 → 2026-06-28

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	23.52	AA+0.83s to AAA	2025-11-24	2025 Southern Pacific Invite venue
100 Freestyle	SCY	50.32	AA+0.53s to AAA	2025-12-14	2025 CA GWSC Winter Age Group Invitational venue
200 Freestyle	SCY	1:53.33	AA+4.64s to AAA	2025-11-02	55th Annual David Graham Memorial Meet venue
500 Freestyle	SCY	5:23.53	BB+0.94s to A	2025-03-23	PVST Spring Fling slow pool
50 Backstroke	SCY	29.85	BB+1.86s to A	2023-02-19	CCS Age Group Championship slow pool
100 Backstroke	SCY	54.72	AA+0.13s to AAA	2025-11-22	2025 Southern Pacific Invite venue
200 Backstroke	SCY	2:03.86	AA+4.57s to AAA	2025-11-23	2025 Southern Pacific Invite venue
50 Breaststroke	SCY	35.14	B+0.35s to BB	2023-02-18	CCS Age Group Championship slow pool
100 Breaststroke	SCY	1:02.95	AA+1.16s to AAA	2026-02-14	2026 SI Presidents' Day Senior Classic - copi venue
200 Breaststroke	SCY	2:22.81	A+1.92s to AA	2025-11-23	2025 Southern Pacific Invite venue
50 Butterfly	SCY	24.08	AAAA	2026-02-14	2026 SI Presidents' Day Senior Classic - copi venue
100 Butterfly	SCY	51.98	AAA+0.49s to AAAA	2025-12-13	2025 CA GWSC Winter Age Group Invitational venue
200 Butterfly	SCY	1:59.05	AAA+3.56s to AAAA	2025-12-14	2025 CA GWSC Winter Age Group Invitational venue
100 Individual Medley	SCY	1:05.17		2023-02-19	CCS Age Group Championship slow pool
200 Individual Medley	SCY	2:02.78	AA+1.59s to AAA	2026-02-14	2026 SI Presidents' Day Senior Classic - copi venue
400 Individual Medley	SCY	4:29.71	AA+9.22s to AAA	2025-12-13	2025 CA GWSC Winter Age Group Invitational venue
50 Freestyle	LCM	26.49	AA+0.30s to AAA	2025-07-27	2025 CA SCS Summer A/G Champs CANY venue
100 Freestyle	LCM	57.23	AA+0.14s to AAA	2025-07-13	2025 LAI Entries venue
200 Freestyle	LCM	2:22.48	BB+5.29s to A	2026-04-12	2026 BUEN LCM Opener venue
50 Backstroke	LCM	29.85	AAA+0.86s to AAAA	2026-06-19	2026 CA MVN Fran Crippen SMOC venue
100 Backstroke	LCM	1:05.78	AA+1.99s to AAA	2025-07-27	2025 CA SCS Summer A/G Champs CANY venue
200 Backstroke	LCM	2:23.00	AA+4.51s to AAA	2025-06-14	2025 CA SCS RAA June Age Group Championships venue
100 Breaststroke	LCM	1:14.29	AA+2.50s to AAA	2025-06-14	2025 CA SCS RAA June Age Group Championships venue
200 Breaststroke	LCM	2:59.39	BB+8.00s to A	2025-06-15	2025 CA SCS RAA June Age Group Championships venue
50 Butterfly	LCM	26.92	AAAA	2026-06-13	2026 SCS June AG Invite-CANY venue
100 Butterfly	LCM	59.46	AAA+0.57s to AAAA	2026-05-23	2026 CA 30th NOVA-Speedo Grand Challenge venue
200 Butterfly	LCM	2:36.37	BB+5.78s to A	2025-06-28	2025 CA SBSC Semana Nautica LCM Meet venue
200 Individual Medley	LCM	2:23.25	AA+2.76s to AAA	2025-07-26	2025 CA SCS Summer A/G Champs CANY venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

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
100 Freestyle	SCY	59.14	flying	400 Free Relay (leg 3)	2023-02-18	CCS Age Group Championship
100 Butterfly	SCY	1:04.91	flying	400 Medley Relay (leg 3)	2023-02-19	CCS Age Group Championship
100 Freestyle	LCM	59.40	flat	400 Free Relay	2025-07-27	2025 CA SCS Summer A/G Champs CANY
50 Butterfly	LCM	26.33	flying	200 Medley Relay (leg 3)	2026-06-14	2026 SCS June AG Invite-CANY
100 Butterfly	LCM	1:02.44	flying	400 Medley Relay (leg 3)	2025-07-26	2025 CA SCS Summer A/G Champs CANY

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 · SCY

4359 points (6/6 events)

Event	Time	Points
500 FR SCY	5:23.53	622
200 BK SCY	2:03.86	713
200 BR SCY	2:22.81	675
200 FL SCY	1:59.05	848
200 IM SCY	2:02.78	783
400 IM SCY	4:29.71	718

IMR 15-16 · SCY

3985 points (5/5 events)

Event	Time	Points
200 FR SCY	1:53.33	728
100 BK SCY	54.72	794
100 BR SCY	1:02.95	769
100 FL SCY	51.98	911
200 IM SCY	2:02.78	783

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

PR splits

100 Freestyle SCY 50.32

24.05

26.27

Front half 24.05s · back half 26.27s

200 Freestyle SCY 1:53.33

26.03

28.58

29.41

29.31

Front half 54.61s · back half 58.72s

500 Freestyle SCY 5:23.53

28.03

31.48

32.56

33.34

32.64

33.94

33.73

33.19

33.31

31.31

Front half 158.05s · back half 165.48s

100 Backstroke SCY 54.72

26.28

28.44

Front half 26.28s · back half 28.44s

200 Backstroke SCY 2:03.86

28.39

31.32

32.21

31.94

Front half 59.71s · back half 64.15s

100 Breaststroke SCY 1:02.95

29.74

33.21

Front half 29.74s · back half 33.21s

200 Breaststroke SCY 2:22.81

32.21

36.42

37.85

36.33

Front half 68.63s · back half 74.18s

100 Butterfly SCY 51.98

24.22

27.76

Front half 24.22s · back half 27.76s

200 Butterfly SCY 1:59.05

26.93

30.43

31.09

30.60

Front half 57.36s · back half 61.69s

100 Individual Medley SCY 1:05.17

30.32

34.85

Front half 30.32s · back half 34.85s

200 Individual Medley SCY 2:02.78

26.18

31.09

36.72

28.79

Front half 57.27s · back half 65.51s

400 Individual Medley SCY 4:29.71

26.78

30.93

36.77

35.13

39.02

39.87

31.63

29.58

Front half 129.61s · back half 140.10s

200 Freestyle LCM 2:22.48

30.84

35.34

38.36

37.94

Front half 66.18s · back half 76.30s

200 Backstroke LCM 2:23.00

33.72

36.58

36.90

35.80

Front half 70.30s · back half 72.70s

100 Breaststroke LCM 1:14.29

35.11

39.18

Front half 35.11s · back half 39.18s

200 Breaststroke LCM 2:59.39

40.15

46.29

48.05

44.90

Front half 86.44s · back half 92.95s

100 Butterfly LCM 59.46

28.00

31.46

Front half 28.00s · back half 31.46s

200 Butterfly LCM 2:36.37

33.32

38.22

41.71

43.12

Front half 71.54s · back half 84.83s

200 Individual Medley LCM 2:23.25

66.15

77.10

Front half 66.15s · back half 77.10s

Reaction time

fastest 0.50s average 0.500s slowest 0.50s 1 electronic start

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 23.52 5 swims

100 Freestyle SCY 50.32 10 swims

200 Freestyle SCY 1:53.33 1 swim

500 Freestyle SCY 5:23.53 2 swims

50 Backstroke SCY 29.85 2 swims

100 Backstroke SCY 54.72 7 swims

200 Backstroke SCY 2:03.86 4 swims

50 Breaststroke SCY 35.14 2 swims

100 Breaststroke SCY 1:02.95 7 swims

200 Breaststroke SCY 2:22.81 5 swims

50 Butterfly SCY 24.08 5 swims

100 Butterfly SCY 51.98 15 swims

200 Butterfly SCY 1:59.05 7 swims

100 Individual Medley SCY 1:05.17 2 swims

200 Individual Medley SCY 2:02.78 10 swims

400 Individual Medley SCY 4:29.71 4 swims

50 Freestyle LCM 26.49 5 swims

100 Freestyle LCM 57.23 7 swims

200 Freestyle LCM 2:22.48 1 swim

50 Backstroke LCM 29.85 1 swim

100 Backstroke LCM 1:05.78 7 swims

200 Backstroke LCM 2:23.00 2 swims

100 Breaststroke LCM 1:14.29 7 swims

200 Breaststroke LCM 2:59.39 2 swims

50 Butterfly LCM 26.92 6 swims

100 Butterfly LCM 59.46 7 swims

200 Butterfly LCM 2:36.37 1 swim

200 Individual Medley LCM 2:23.25 5 swims