Benjamin Chu

Mage 18IEMTORPNSRSTHANTCCC

496 plausible swims · 75 meets · 2016-11-18 → 2026-05-31

Personal records

Event	Course	Best	Cut	Date	Meet
25 Freestyle	SCY	12.30		2024-09-21	2024 IE MRA Sprint Shootout venue
50 Freestyle	SCY	24.15	BB+0.46s to A	2025-12-06	2025 Tualatin Hills Holiday Classic venue
100 Freestyle	SCY	53.33	BB+1.34s to A	2025-10-25	2025 Spooktacular Swim Meet venue
200 Freestyle	SCY	1:50.86	A+0.67s to AA	2025-12-05	2025 Tualatin Hills Holiday Classic venue
500 Freestyle	SCY	4:58.23	AA+11.54s to AAA	2025-12-06	2025 Tualatin Hills Holiday Classic venue
1000 Freestyle	SCY	10:15.68	AA+13.39s to AAA	2025-03-27	2025 Four Corners Speedo Sectionals - Austin venue
1650 Freestyle	SCY	17:01.75	AA+17.96s to AAA	2025-12-07	2025 Tualatin Hills Holiday Classic venue
25 Backstroke	SCY	22.03		2017-01-28	2017 Winter Open venue
50 Backstroke	SCY	29.25	B+0.56s to BB	2025-09-20	2025 IE MRA Sprint Shootout venue
100 Backstroke	SCY	57.55	BB+1.36s to A	2026-01-03	January Storm venue
200 Backstroke	SCY	1:47.46	AAAA	2025-01-16	2025 PN VAST 48th Annual Washington Open
25 Breaststroke	SCY	27.24		2017-01-28	2017 Winter Open venue
50 Breaststroke	SCY	32.80	BB+2.21s to A	2023-09-23	2023 IE MRA Sprint Shootout venue
100 Breaststroke	SCY	1:06.85	BB+2.66s to A	2026-01-31	2026 Winter Open venue
200 Breaststroke	SCY	2:17.34	A+3.55s to AA	2026-03-12	2026 Bellevue Club Premier Invite- Approved fast pool
25 Butterfly	SCY	25.43		2017-01-29	2017 Winter Open venue
50 Butterfly	SCY	27.91	BB+1.42s to A	2025-09-20	2025 IE MRA Sprint Shootout venue
100 Butterfly	SCY	56.58	BB+0.39s to A	2026-01-03	January Storm venue
200 Butterfly	SCY	2:00.17	AA+4.28s to AAA	2025-03-27	2025 Four Corners Speedo Sectionals - Austin venue
100 Individual Medley	SCY	1:00.93		2024-09-21	2024 IE MRA Sprint Shootout venue
200 Individual Medley	SCY	2:01.16	AA+4.97s to AAA	2026-01-15	2026 PN VAST 49th Annual Washington Open- APP
400 Individual Medley	SCY	4:15.77	AA+4.98s to AAA	2026-03-13	2026 Bellevue Club Premier Invite- Approved fast pool
50 Freestyle	LCM	28.93	BB+1.54s to A	2024-07-13	2024 SUNBURN CLASSIC venue
100 Freestyle	LCM	1:00.63	BB+0.44s to A	2025-06-06	2025 TRI-CITY INVITATIONAL venue
200 Freestyle	LCM	2:11.43	A+5.24s to AA	2023-07-22	2023 IES LC Championships venue
400 Freestyle	LCM	4:32.43	A+3.44s to AA	2023-07-21	2023 IES LC Championships venue
800 Freestyle	LCM	9:16.36	AA+17.57s to AAA	2024-08-03	GroupB - WZ LCM Senior Champs 2024 venue
1500 Freestyle	LCM	17:41.02	AA+30.03s to AAA	2024-07-30	GroupB - WZ LCM Senior Champs 2024 venue
50 Backstroke	LCM	46.56	+9.27s to B	2018-07-29	2018 Inland Empire Long Course Championships venue
100 Backstroke	LCM	1:08.43	BB+1.44s to A	2026-05-03	2026 THSC Spring Invite venue
200 Backstroke	LCM	2:26.96	BB+1.07s to A	2026-05-02	2026 THSC Spring Invite venue
50 Breaststroke	LCM	52.00	+11.01s to B	2018-07-28	2018 Inland Empire Long Course Championships venue
100 Breaststroke	LCM	1:21.37	B+0.48s to BB	2024-07-14	2024 SUNBURN CLASSIC venue
200 Breaststroke	LCM	2:43.98	BB+0.69s to A	2026-05-30	2026 TRI-CITY INVITATIONAL venue
50 Butterfly	LCM	45.68	+10.89s to B	2018-07-29	2018 Inland Empire Long Course Championships venue
100 Butterfly	LCM	1:04.26	A+2.67s to AA	2026-05-02	2026 THSC Spring Invite venue
200 Butterfly	LCM	2:24.63	BB+0.74s to A	2025-06-07	2025 TRI-CITY INVITATIONAL venue
200 Individual Medley	LCM	2:22.16	A+0.27s to AA	2024-08-03	GroupB - WZ LCM Senior Champs 2024 venue
400 Individual Medley	LCM	4:58.82	AA+7.33s to AAA	2024-07-31	GroupB - WZ LCM Senior Champs 2024 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 Freestyle	SCY	31.93	flat	200 Free Relay	2020-01-05	January Storm
50 Freestyle	SCY	25.89	flying	200 Free Relay (leg 3)	2024-03-03	2024 IES Short Course Championships
50 Freestyle	SCY	36.35	flying	200 Medley Relay (leg 4)	2019-01-26	2019 Winter Open
50 Backstroke	SCY	27.39	flat	200 Medley Relay	2026-02-28	2026 IES Short Course Championships
50 Butterfly	SCY	24.65	flying	200 Medley Relay (leg 3)	2025-03-01	2025 IES Short Course Championships

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 · SCY

4795 points (6/6 events)

Event	Time	Points
500 FR SCY	4:58.23	761
200 BK SCY	1:47.46	1012
200 BR SCY	2:17.34	695
200 FL SCY	2:00.17	762
200 IM SCY	2:01.16	760
400 IM SCY	4:15.77	805

IMR 17-18 · SCY

3351 points (5/5 events)

Event	Time	Points
200 FR SCY	1:50.86	738
100 BK SCY	57.55	613
100 BR SCY	1:06.85	587
100 FL SCY	56.58	653
200 IM SCY	2:01.16	760

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

PR splits

100 Freestyle SCY 53.33

25.45

27.88

Front half 25.45s · back half 27.88s

200 Freestyle SCY 1:50.86

25.79

27.93

28.86

28.28

Front half 53.72s · back half 57.14s

500 Freestyle SCY 4:58.23

27.28

29.71

30.31

30.47

30.49

30.37

30.55

30.51

29.76

28.78

Front half 148.26s · back half 149.97s

1000 Freestyle SCY 10:15.68

27.62

30.19

31.02

30.03

30.09

30.77

30.50

30.83

31.11

30.98

31.35

30.97

31.49

31.36

31.71

31.34

31.24

31.55

31.06

30.47

Front half 303.14s · back half 312.54s

1650 Freestyle SCY 17:01.75

28.17

30.31

30.90

31.02

31.01

31.07

31.20

30.91

30.98

31.11

31.22

31.24

31.23

31.41

30.64

31.38

31.20

31.63

31.04

31.61

31.41

31.13

31.09

31.26

31.21

31.16

31.43

31.34

30.86

30.98

31.36

30.32

28.92

50 Backstroke SCY 29.25

14.71

14.54

Front half 14.71s · back half 14.54s

100 Backstroke SCY 57.55

28.26

29.29

Front half 28.26s · back half 29.29s

50 Breaststroke SCY 32.80

15.37

17.43

Front half 15.37s · back half 17.43s

100 Breaststroke SCY 1:06.85

14.87

17.33

17.42

17.23

Front half 32.20s · back half 34.65s

200 Breaststroke SCY 2:17.34 RT 0.64s

31.54

34.69

35.37

35.74

Front half 66.23s · back half 71.11s

50 Butterfly SCY 27.91

12.86

15.05

Front half 12.86s · back half 15.05s

100 Butterfly SCY 56.58

26.78

29.80

Front half 26.78s · back half 29.80s

200 Butterfly SCY 2:00.17

27.17

30.07

30.87

32.06

Front half 57.24s · back half 62.93s

100 Individual Medley SCY 1:00.93

13.00

15.36

18.49

14.08

Front half 28.36s · back half 32.57s

200 Individual Medley SCY 2:01.16

24.37

52.92

85.82

113.57

27.37

58.46

89.87

121.16

400 Individual Medley SCY 4:15.77 RT 0.65s

27.69

30.58

31.31

31.56

37.26

37.71

30.83

28.83

Front half 121.14s · back half 134.63s

200 Freestyle LCM 2:11.43

63.50

67.93

Front half 63.50s · back half 67.93s

400 Freestyle LCM 4:32.43

64.88

69.53

69.87

68.15

Front half 134.41s · back half 138.02s

800 Freestyle LCM 9:16.36

31.63

34.05

35.05

34.99

35.05

35.43

35.82

36.02

34.81

34.58

35.29

35.39

35.06

34.73

34.92

33.54

Front half 278.04s · back half 278.32s

1500 Freestyle LCM 17:41.02

31.45

35.42

35.16

35.85

35.22

35.72

35.07

35.82

35.59

35.64

35.55

35.26

35.73

35.75

36.10

35.24

36.49

34.08

36.66

35.87

36.55

35.72

36.44

35.66

36.07

34.62

35.02

36.21

31.80

Front half 528.49s · back half 532.53s

100 Backstroke LCM 1:08.43

33.33

35.10

Front half 33.33s · back half 35.10s

200 Backstroke LCM 2:26.96

35.18

37.34

37.69

36.75

Front half 72.52s · back half 74.44s

200 Breaststroke LCM 2:43.98

78.65

85.33

Front half 78.65s · back half 85.33s

100 Butterfly LCM 1:04.26

30.55

33.71

Front half 30.55s · back half 33.71s

200 Butterfly LCM 2:24.63

68.53

76.10

Front half 68.53s · back half 76.10s

200 Individual Medley LCM 2:22.16

30.72

78.11

33.33

400 Individual Medley LCM 4:58.82

30.72

34.36

38.93

82.34

44.66

34.84

32.97

Reaction time

fastest 0.41s average 0.611s slowest 0.75s 20 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 12.30 4 swims

50 Freestyle SCY 24.15 22 swims

100 Freestyle SCY 53.33 27 swims

200 Freestyle SCY 1:50.86 31 swims

500 Freestyle SCY 4:58.23 27 swims

1000 Freestyle SCY 10:15.68 8 swims

1650 Freestyle SCY 17:01.75 13 swims

25 Backstroke SCY 22.03 4 swims

50 Backstroke SCY 29.25 14 swims

100 Backstroke SCY 57.55 23 swims

200 Backstroke SCY 1:47.46 24 swims

25 Breaststroke SCY 27.24 3 swims

50 Breaststroke SCY 32.80 17 swims

100 Breaststroke SCY 1:06.85 18 swims

200 Breaststroke SCY 2:17.34 19 swims

25 Butterfly SCY 25.43 3 swims

50 Butterfly SCY 27.91 14 swims

100 Butterfly SCY 56.58 13 swims

200 Butterfly SCY 2:00.17 16 swims

100 Individual Medley SCY 1:00.93 16 swims

200 Individual Medley SCY 2:01.16 34 swims

400 Individual Medley SCY 4:15.77 26 swims

50 Freestyle LCM 28.93 6 swims

100 Freestyle LCM 1:00.63 10 swims

200 Freestyle LCM 2:11.43 11 swims

400 Freestyle LCM 4:32.43 7 swims

800 Freestyle LCM 9:16.36 6 swims

1500 Freestyle LCM 17:41.02 2 swims

50 Backstroke LCM 46.56 2 swims

100 Backstroke LCM 1:08.43 13 swims

200 Backstroke LCM 2:26.96 7 swims

50 Breaststroke LCM 52.00 2 swims

100 Breaststroke LCM 1:21.37 6 swims

200 Breaststroke LCM 2:43.98 7 swims

50 Butterfly LCM 45.68 2 swims

100 Butterfly LCM 1:04.26 10 swims

200 Butterfly LCM 2:24.63 3 swims

200 Individual Medley LCM 2:22.16 13 swims

400 Individual Medley LCM 4:58.82 13 swims