Cooper Dong

Mage 17EZFGFLMAMDMRAGUA

374 plausible swims · 83 meets · 2019-05-10 → 2026-06-20

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	22.25	AA+0.16s to AAA	2026-03-28	2026 EZ North Speedo Short Course Sectionals venue
100 Freestyle	SCY	50.27	AA+1.98s to AAA	2026-01-19	2026 MR AGUA MLK Invitational venue
200 Freestyle	SCY	1:48.59	AA+2.20s to AAA	2026-01-17	2026 MR AGUA MLK Invitational
500 Freestyle	SCY	4:28.33	AAAA	2025-10-11	2025 MR AGUA Season Starter Invitational
1000 Freestyle	SCY	12:22.58	B+28.19s to BB	2022-10-21	2022 MR AGUA October Distance Time Trial
50 Backstroke	SCY	24.87	AA+0.28s to AAA	2026-03-27	2026 EZ North Speedo Short Course Sectionals venue
100 Backstroke	SCY	53.02	AA+0.53s to AAA	2026-02-12	2026 MR TYR Senior Mets Winter Championship
200 Backstroke	SCY	1:54.84	AA+0.05s to AAA	2026-02-15	2026 MR TYR Senior Mets Winter Championship venue
50 Breaststroke	SCY	40.06	+4.07s to B	2021-01-15	2021 MR AGUA January Time Trial
100 Breaststroke	SCY	1:02.24	A+0.15s to AA	2026-03-07	2026 MR AGUA Last Chance Invitational
200 Breaststroke	SCY	2:19.59	A+4.70s to AA	2025-11-17	JW Thansgiving ABBC Meet
50 Butterfly	SCY	24.27	AAA+0.88s to AAAA	2026-01-17	2026 MR AGUA MLK Invitational venue
100 Butterfly	SCY	52.66	AA+0.67s to AAA	2025-01-18	2025 MR AGUA MLK Invitational
200 Butterfly	SCY	2:00.88	AA+3.99s to AAA	2026-03-07	2026 MR AGUA Last Chance Invitational
100 Individual Medley	SCY	57.06		2025-10-11	2025 MR AGUA Season Starter Invitational venue
200 Individual Medley	SCY	1:58.49	AA+1.00s to AAA	2026-02-14	2026 MR TYR Senior Mets Winter Championship venue
400 Individual Medley	SCY	4:14.18	AA+1.19s to AAA	2026-03-27	2026 EZ North Speedo Short Course Sectionals venue
50 Freestyle	LCM	25.40	AAA+1.01s to AAAA	2026-05-23	2026 MR AGUA Memorial Day Invitational fast pool
100 Freestyle	LCM	56.02	AA+0.43s to AAA	2025-08-02	2025 ISCA Summer Senior Blast venue
200 Freestyle	LCM	2:03.78	AA+1.59s to AAA	2026-06-18	Swim Fort Lauderdale Speedo Summer Classic 26 venue
400 Freestyle	LCM	4:34.44	A+2.05s to AA	2025-06-21	2025 MR LIAC Summer Fun Invitational
50 Backstroke	LCM	29.14	AAA+1.15s to AAAA	2026-05-23	2026 MR AGUA Memorial Day Invitational
100 Backstroke	LCM	1:01.34	AAA+2.25s to AAAA	2025-07-10	2025 MR TYR Senior Metropolitan Summer Champs
200 Backstroke	LCM	2:13.18	AAA+4.49s to AAAA	2026-06-19	Swim Fort Lauderdale Speedo Summer Classic 26 venue
50 Breaststroke	LCM	32.53	AA+0.44s to AAA	2026-05-23	2026 MR AGUA Memorial Day Invitational
100 Breaststroke	LCM	1:13.71	A+1.32s to AA	2025-07-05	2025 MR LIAC Summer Splash Invitational
200 Breaststroke	LCM	2:42.27	A+4.38s to AA	2025-06-21	2025 MR LIAC Summer Fun Invitational
50 Butterfly	LCM	27.65	AAA+1.26s to AAAA	2025-07-30	2025 ISCA Summer Senior Blast venue
100 Butterfly	LCM	1:01.45	AA+1.76s to AAA	2026-06-18	Swim Fort Lauderdale Speedo Summer Classic 26 venue
200 Butterfly	LCM	2:30.18	BB+4.79s to A	2024-06-21	2024 MR LIE June Jamboree Invitational venue
200 Individual Medley	LCM	2:16.10	AAA+6.11s to AAAA	2026-06-19	Swim Fort Lauderdale Speedo Summer Classic 26 venue
400 Individual Medley	LCM	5:02.76	AA+10.37s to AAA	2024-07-20	2024 Metropolitan LC Junior Met Championships venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.

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 17-18 · SCY

4919 points (6/6 events)

Event	Time	Points
500 FR SCY	4:28.33	1046
200 BK SCY	1:54.84	829
200 BR SCY	2:19.59	662
200 FL SCY	2:00.88	749
200 IM SCY	1:58.49	813
400 IM SCY	4:14.18	820

IMR 17-18 · LCM

3943 points (5/5 events)

Event	Time	Points
200 FR LCM	2:03.78	795
100 BK LCM	1:01.34	853
100 BR LCM	1:13.71	688
100 FL LCM	1:01.45	756
200 IM LCM	2:16.10	851

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

PR splits

100 Freestyle SCY 50.27

24.26

26.01

Front half 24.26s · back half 26.01s

200 Freestyle SCY 1:48.59

26.02

53.88

26.00

53.75

81.65

108.59

500 Freestyle SCY 4:28.33 split/total mismatch

27.91

58.76

90.06

121.90

302.77

335.04

279.61

309.82

30.41

63.72

98.35

132.50

1000 Freestyle SCY 12:22.58

31.26

36.00

37.10

37.45

37.58

37.50

37.91

37.64

38.00

37.58

37.83

37.89

37.91

37.75

36.89

37.85

37.32

37.82

35.85

Front half 367.89s · back half 374.69s

100 Backstroke SCY 53.02

25.58

27.44

Front half 25.58s · back half 27.44s

200 Backstroke SCY 1:54.84

27.09

28.81

29.71

29.23

Front half 55.90s · back half 58.94s

100 Breaststroke SCY 1:02.24

29.58

32.66

Front half 29.58s · back half 32.66s

200 Breaststroke SCY 2:19.59 split/total mismatch

32.63

35.76

35.90

35.30

200 Butterfly SCY 2:00.88

26.82

30.98

31.54

Front half 57.80s · back half 63.08s

100 Individual Medley SCY 57.06

26.35

30.71

Front half 26.35s · back half 30.71s

200 Individual Medley SCY 1:58.49

25.28

29.67

35.50

28.04

Front half 54.95s · back half 63.54s

400 Individual Medley SCY 4:14.18

26.81

30.20

32.20

31.60

37.14

37.74

29.76

28.73

Front half 120.81s · back half 133.37s

100 Freestyle LCM 56.02

26.91

29.11

Front half 26.91s · back half 29.11s

200 Freestyle LCM 2:03.78

60.23

63.55

Front half 60.23s · back half 63.55s

400 Freestyle LCM 4:34.44

29.46

61.41

93.90

126.54

30.96

65.93

101.24

136.87

159.18

191.52

223.38

254.09

171.70

206.89

240.86

274.44

100 Backstroke LCM 1:01.34

30.12

62.95

29.41

61.34

200 Backstroke LCM 2:13.18 RT 0.54s

65.39

67.79

Front half 65.39s · back half 67.79s

100 Breaststroke LCM 1:13.71 split/total mismatch

45.13

48.86

Front half 45.13s · back half 28.58s

200 Breaststroke LCM 2:42.27

36.23

40.15

42.43

43.46

Front half 76.38s · back half 85.89s

100 Butterfly LCM 1:01.45

28.52

32.93

Front half 28.52s · back half 32.93s

200 Butterfly LCM 2:30.18

71.57

78.61

Front half 71.57s · back half 78.61s

200 Individual Medley LCM 2:16.10

63.66

72.44

Front half 63.66s · back half 72.44s

400 Individual Medley LCM 5:02.76

31.64

36.62

38.72

37.85

44.31

45.72

34.11

33.79

Front half 144.83s · back half 157.93s

Reaction time

fastest 0.54s average 0.568s slowest 0.60s 13 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 22.25 13 swims

100 Freestyle SCY 50.27 12 swims

200 Freestyle SCY 1:48.59 11 swims

500 Freestyle SCY 4:28.33 7 swims

1000 Freestyle SCY 12:22.58 1 swim

50 Backstroke SCY 24.87 14 swims

100 Backstroke SCY 53.02 21 swims

200 Backstroke SCY 1:54.84 14 swims

50 Breaststroke SCY 40.06 6 swims

100 Breaststroke SCY 1:02.24 9 swims

200 Breaststroke SCY 2:19.59 5 swims

50 Butterfly SCY 24.27 8 swims

100 Butterfly SCY 52.66 13 swims

200 Butterfly SCY 2:00.88 4 swims

100 Individual Medley SCY 57.06 5 swims

200 Individual Medley SCY 1:58.49 11 swims

400 Individual Medley SCY 4:14.18 6 swims

50 Freestyle LCM 25.40 23 swims

100 Freestyle LCM 56.02 21 swims

200 Freestyle LCM 2:03.78 15 swims

400 Freestyle LCM 4:34.44 5 swims

50 Backstroke LCM 29.14 16 swims

100 Backstroke LCM 1:01.34 38 swims

200 Backstroke LCM 2:13.18 26 swims

50 Breaststroke LCM 32.53 10 swims

100 Breaststroke LCM 1:13.71 19 swims

200 Breaststroke LCM 2:42.27 6 swims

50 Butterfly LCM 27.65 5 swims

100 Butterfly LCM 1:01.45 11 swims

200 Butterfly LCM 2:30.18 1 swim

200 Individual Medley LCM 2:16.10 16 swims

400 Individual Medley LCM 5:02.76 2 swims