James Cosgrove

Mage 17CTEZFLMDMEMRSEVABADBGNWCONDTIDEUBGNWUN-1UN-TIUNAUNBULWEST

402 plausible swims · 83 meets · 2011-12-05 → 2026-07-10

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	23.18	A+0.09s to AA·+0.79s to Sectionals	2025-11-16	2025 MR COND November IMX Invitational venue
100 Freestyle	SCY	50.18	AA+1.89s to AAA·+1.69s to Sectionals	2025-01-01	Metropolitan Swimming Club
200 Freestyle	SCY	1:43.18	AAA+1.69s to AAAA·Sectionals ✓+1.59s to Futures	2024-10-05	2024 MR BGNW Harvest Festival Invitational
500 Freestyle	SCY	4:38.40	AAA+2.91s to AAAA·Sectionals ✓+1.31s to Futures	2025-11-07	2025 MR LIE Fall Classic Invitational
1000 Freestyle	SCY	9:41.82	AAA+4.83s to AAAA·Sectionals ✓+7.53s to Futures	2025-10-10	2025 MR COND October Fall Festival venue
1650 Freestyle	SCY	16:13.48	AAA+9.59s to AAAA·Sectionals ✓+7.99s to Futures	2026-03-06	Speedo Southern Premier
100 Backstroke	SCY	55.44	A+0.55s to AA·+0.95s to Sectionals	2024-12-14	2024 NBAC 50th Annual Christmas Invitational venue
200 Backstroke	SCY	1:58.73	AA+3.94s to AAA·+0.14s to Sectionals	2024-12-12	2024 NBAC 50th Annual Christmas Invitational
100 Breaststroke	SCY	1:05.95	BB+1.26s to A·+4.46s to Sectionals	2025-12-06	2025 MR NYS Holiday Classic Trials & Finals venue
200 Breaststroke	SCY	2:03.22	AAA+0.03s to AAAA·Futures ✓+2.83s to US Open	2024-11-15	2024 MR COND November IMX Invitational
100 Butterfly	SCY	53.92	AA+1.93s to AAA·+0.73s to Sectionals	2025-01-01	Metropolitan Swimming Club
200 Butterfly	SCY	1:55.91	AAA+4.32s to AAAA·Sectionals ✓+2.22s to Futures	2025-11-07	2025 MR LIE Fall Classic Invitational
200 Individual Medley	SCY	1:54.73	AAA+2.54s to AAAA·Sectionals ✓+0.84s to Futures	2024-10-19	2024 MR LIAC Chappy's Invitational
400 Individual Medley	SCY	4:17.91	AA+4.92s to AAA·+2.82s to Sectionals	2026-01-30	CPAC January AGQ venue
50 Freestyle	LCM	27.48	A+0.79s to AA·+1.99s to Sectionals	2026-06-05	2026 TIDE Schools Out Classic
100 Freestyle	LCM	57.67	AA+2.08s to AAA·+2.18s to Sectionals	2025-05-15	2025 EZ LC Speedo Super Sectional venue
200 Freestyle	LCM	2:04.79	AA+2.60s to AAA·+3.50s to Sectionals	2025-07-10	2025 MR TYR Senior Metropolitan Summer Champs
400 Freestyle	LCM	4:18.63	AAA+9.94s to AAAA·+1.04s to Sectionals	2025-07-29	2025 ISCA Summer Senior Blast
800 Freestyle	LCM	8:54.85	AAA+17.96s to AAAA·Sectionals ✓+14.16s to Futures	2025-08-02	2025 ISCA Summer Senior Blast venue
1500 Freestyle	LCM	17:07.34	AAA+35.45s to AAAA·Sectionals ✓+28.35s to Futures	2025-07-29	2025 ISCA Summer Senior Blast venue
50 Backstroke	LCM	30.19	AA+0.80s to AAA·+2.30s to Futures	2026-07-09	2026 VA LC Senior Champs fast pool
100 Backstroke	LCM	1:05.19	A+0.50s to AA·+3.20s to Sectionals	2025-07-10	2025 MR TYR Senior Metropolitan Summer Champs
200 Backstroke	LCM	2:20.43	AA+5.64s to AAA·+5.64s to Sectionals	2025-07-29	2025 ISCA Summer Senior Blast
50 Breaststroke	LCM	29.79	AAAA·Futures ✓+0.20s to US Open	2026-01-04	2026 MR BAD Time Trial
100 Breaststroke	LCM	1:23.24	B+1.45s to BB·+13.55s to Sectionals	2026-06-05	2026 TIDE Schools Out Classic
200 Breaststroke	LCM	3:04.15	B+5.66s to BB·+31.56s to Sectionals	2023-06-02	2023 MR COND Summer Solstice Invitational
50 Butterfly	LCM	28.12	AA+0.43s to AAA·+1.83s to Futures	2025-07-30	2025 ISCA Summer Senior Blast venue
100 Butterfly	LCM	1:01.68	AA+1.99s to AAA·+1.49s to Sectionals	2025-07-29	2025 ISCA Summer Senior Blast
200 Butterfly	LCM	2:13.08	AAA+5.89s to AAAA·Sectionals ✓+2.89s to Futures	2024-05-03	2024 MR COND May Meters Matters Meet
200 Individual Medley	LCM	2:26.97	A+4.58s to AA·+10.78s to Sectionals	2023-06-17	2023 MR RED LC International Invitational venue
400 Individual Medley	LCM	5:02.12	AA+9.73s to AAA·+12.23s to Sectionals	2024-06-07	2024 Condors Summer Solstice

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

National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.

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	23.72	flying	200 Free Relay (leg 2)	2024-03-29	2024 Eastern Zone SC Age Group Championships
100 Freestyle	SCY	50.73	flat	400 Free Relay	2024-03-27	2024 Eastern Zone SC Age Group Championships
100 Freestyle	SCY	51.61	flying	400 Free Relay (leg 4)	2023-12-15	2023 NBAC Christmas Invitational
100 Freestyle	SCY	52.15	flying	400 Medley Relay (leg 4)	2023-12-16	2023 NBAC Christmas Invitational
50 Backstroke	SCY	26.64	flat	200 Medley Relay	2024-03-30	2024 Eastern Zone SC Age Group Championships
100 Backstroke	SCY	57.78	flat	400 Medley Relay	2024-03-28	2024 Eastern Zone SC Age Group Championships
50 Freestyle	LCM	26.42	flying	200 Free Relay (leg 2)	2025-07-31	2025 ISCA Summer Senior Blast
50 Butterfly	LCM	27.94	flying	200 Medley Relay (leg 3)	2025-07-30	2025 ISCA Summer Senior Blast
100 Butterfly	LCM	1:01.20	flying	400 Medley Relay (leg 3)	2025-08-01	2025 ISCA Summer Senior Blast

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

5178 points (6/6 events)

Event	Time	Points
500 FR SCY	4:38.40	936
200 BK SCY	1:58.73	750
200 BR SCY	2:03.22	963
200 FL SCY	1:55.91	849
200 IM SCY	1:54.73	895
400 IM SCY	4:17.91	785

IMR 17-18 · SCY

3860 points (5/5 events)

Event	Time	Points
200 FR SCY	1:43.18	915
100 BK SCY	55.44	685
100 BR SCY	1:05.95	611
100 FL SCY	53.92	754
200 IM SCY	1:54.73	895

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

PR splits

100 Freestyle SCY 50.18 split/total mismatch

36.16

80.76

123.11

168.01

24.43

50.18

223.83

277.16

317.47

356.13

200 Freestyle SCY 1:43.18

25.45

52.36

24.31

50.37

77.01

103.18

500 Freestyle SCY 4:38.40 split/total mismatch

27.42

57.28

87.41

116.69

25.43

52.60

80.49

108.62

1000 Freestyle SCY 9:41.82

25.56

27.36

28.25

28.68

28.93

29.19

29.09

29.53

29.60

29.55

29.60

29.75

29.76

30.03

29.81

30.06

29.55

28.24

Front half 285.72s · back half 296.10s

1650 Freestyle SCY 16:13.48 RT 0.71s

26.72

28.41

28.90

29.17

29.34

29.31

29.64

30.02

29.04

29.84

29.42

29.64

29.87

29.80

30.21

29.79

30.15

30.03

29.81

30.04

28.90

29.73

30.17

29.26

29.55

29.87

29.75

29.65

30.17

30.20

29.91

29.03

28.14

100 Backstroke SCY 55.44

27.32

28.12

Front half 27.32s · back half 28.12s

100 Breaststroke SCY 1:05.95

30.66

35.29

Front half 30.66s · back half 35.29s

100 Butterfly SCY 53.92 split/total mismatch

34.87

37.98

Front half 34.87s · back half 19.05s

200 Butterfly SCY 1:55.91

29.25

61.56

26.06

55.13

85.75

115.91

200 Individual Medley SCY 1:54.73

26.52

57.50

89.70

121.90

25.06

54.00

87.40

114.73

400 Individual Medley SCY 4:17.91 split/total mismatch

25.96

29.95

32.99

32.52

38.10

39.35

30.30

28.74

200 Freestyle LCM 2:04.79

28.68

31.09

32.66

32.36

Front half 59.77s · back half 65.02s

400 Freestyle LCM 4:18.63 split/total mismatch

159.46

193.30

226.85

259.06

28.99

61.14

93.42

127.18

800 Freestyle LCM 8:54.85

30.46

32.91

14.48

18.76

101.12

33.83

34.20

33.64

33.93

34.19

34.12

33.61

34.03

33.50

32.07

1500 Freestyle LCM 17:07.34

29.79

32.08

32.68

33.32

33.35

33.95

33.96

34.36

34.72

34.44

35.12

34.86

35.03

35.24

35.18

35.15

35.31

34.82

35.04

34.38

35.09

34.83

35.27

34.51

34.89

34.29

34.81

34.37

32.54

Front half 506.86s · back half 520.48s

100 Backstroke LCM 1:05.19

31.74

33.45

Front half 31.74s · back half 33.45s

200 Butterfly LCM 2:13.08

32.63

69.50

108.18

148.69

30.13

64.28

98.84

133.08

200 Individual Medley LCM 2:26.97

31.59

36.56

45.52

33.30

Front half 68.15s · back half 78.82s

400 Individual Medley LCM 5:02.12

30.13

68.53

118.57

153.43

31.03

67.05

105.81

144.59

187.81

233.91

268.15

302.12

Reaction time

fastest 0.64s average 0.697s slowest 0.75s 12 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 23.18 6 swims

100 Freestyle SCY 50.18 12 swims

200 Freestyle SCY 1:43.18 25 swims

500 Freestyle SCY 4:38.40 21 swims

1000 Freestyle SCY 9:41.82 10 swims

1650 Freestyle SCY 16:13.48 8 swims

100 Backstroke SCY 55.44 20 swims

200 Backstroke SCY 1:58.73 21 swims

100 Breaststroke SCY 1:05.95 3 swims

200 Breaststroke SCY 2:03.22 5 swims

100 Butterfly SCY 53.92 20 swims

200 Butterfly SCY 1:55.91 27 swims

200 Individual Medley SCY 1:54.73 11 swims

400 Individual Medley SCY 4:17.91 11 swims

50 Freestyle LCM 27.48 12 swims

100 Freestyle LCM 57.67 22 swims

200 Freestyle LCM 2:04.79 23 swims

400 Freestyle LCM 4:18.63 14 swims

800 Freestyle LCM 8:54.85 9 swims

1500 Freestyle LCM 17:07.34 3 swims

50 Backstroke LCM 30.19 3 swims

100 Backstroke LCM 1:05.19 20 swims

200 Backstroke LCM 2:20.43 18 swims

50 Breaststroke LCM 29.79 1 swim

100 Breaststroke LCM 1:23.24 5 swims

200 Breaststroke LCM 3:04.15 2 swims

50 Butterfly LCM 28.12 1 swim

100 Butterfly LCM 1:01.68 24 swims

200 Butterfly LCM 2:13.08 22 swims

200 Individual Medley LCM 2:26.97 14 swims

400 Individual Medley LCM 5:02.12 7 swims