Sean Boothroyd

Mage 17NEGLYBNSSCUN

235 plausible swims · 49 meets · 2024-01-01 → 2026-06-26

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	25.12	BB+1.03s to A·+2.73s to Sectionals	2026-03-14	2026 NE NSSC NE Cup Championship fast pool
100 Freestyle	SCY	55.44	BB+2.85s to A·+6.95s to Sectionals	2026-03-22	2026 NE NSSC March Madness at MIT venue
200 Freestyle	SCY	1:56.41	BB+0.42s to A·+10.12s to Sectionals	2026-03-21	2026 NE NSSC March Madness at MIT venue
500 Freestyle	SCY	5:09.33	A+7.64s to AA·+21.94s to Sectionals	2025-02-23	2025 NE OB MIAA Winter Boy's State D1 venue
1000 Freestyle	SCY	10:40.49	A+8.50s to AA·+41.00s to Sectionals	2026-02-01	2026 NE GS Silver Championships fast pool
1650 Freestyle	SCY	18:52.80	BB+31.21s to A·+128.81s to Sectionals	2025-01-01	2025 ne glyb cookie classic results
50 Backstroke	SCY	32.75	+1.56s to B·+9.06s to Futures	2025-11-01	2025 NE NSSC Nov Beede Specialty
100 Backstroke	SCY	1:12.22	+5.43s to B·+17.73s to Sectionals	2025-01-12	2025 NE CS Winter Classic venue
200 Backstroke	SCY	2:34.67	+8.58s to B·+36.08s to Sectionals	2025-12-07	2025 NE NSSC December 7 SJP venue
50 Breaststroke	SCY	39.11	+3.12s to B·+12.82s to Futures	2025-01-01	2025 ne cs winter classic results
100 Breaststroke	SCY	1:20.62	+5.13s to B·+19.13s to Sectionals	2025-01-01	2025 ne nssc 2fast2furious results
200 Breaststroke	SCY	2:49.48	+5.29s to B·+34.49s to Sectionals	2026-03-14	2026 NE NSSC NE Cup Championship fast pool
50 Butterfly	SCY	27.82	BB+1.13s to A·+4.93s to Futures	2026-03-21	2026 NE NSSC March Madness at MIT venue
100 Butterfly	SCY	1:00.17	BB+3.48s to A·+6.98s to Sectionals	2026-03-21	2026 NE NSSC March Madness at MIT venue
200 Butterfly	SCY	2:11.90	BB+4.41s to A·+10.71s to Sectionals	2026-03-22	2026 NE NSSC March Madness at MIT venue
100 Individual Medley	SCY	1:03.57		2026-03-14	2026 NE NSSC NE Cup Championship fast pool
200 Individual Medley	SCY	2:20.23	B+1.34s to BB·+20.84s to Sectionals	2025-11-23	2025 NE NSSC Tukey Classic at PA venue
400 Individual Medley	SCY	4:55.03	BB+19.04s to A·+39.94s to Sectionals	2025-11-22	2025 NE NSSC Tukey Classic at PA venue
50 Freestyle	LCM	28.46	BB+0.67s to A·+2.97s to Sectionals	2026-06-21	2026 NE NSSC Invitational Springfield College fast pool
100 Freestyle	LCM	1:00.89	BB+0.30s to A·+5.40s to Sectionals	2026-01-01	2026 NE SHAWMUT America's Cup
200 Freestyle	LCM	2:14.37	BB+1.08s to A·+13.08s to Sectionals	2026-06-26	2026 NE NSSC June 26-28 MIT Invitational venue
400 Freestyle	LCM	4:44.37	BB+0.08s to A·+26.78s to Sectionals	2026-01-01	2026 NE SHAWMUT America's Cup
800 Freestyle	LCM	9:57.22	BB+6.43s to A·+58.83s to Sectionals	2025-07-27	2025 NE NSSC Silver Championship fast pool
1500 Freestyle	LCM	18:51.32	A+44.93s to AA·+92.33s to Sectionals	2026-06-20	2026 NE NSSC Invitational Springfield College fast pool
50 Backstroke	LCM	41.33	+3.94s to B·+13.44s to Futures	2024-06-30	2024 NE MST ESC June Memorial slow pool
100 Backstroke	LCM	1:21.88	+3.19s to B·+19.89s to Sectionals	2026-05-30	2026 NE NSSC May Invitational at Colby fast pool
200 Backstroke	LCM	3:00.17	+8.58s to B·+45.38s to Sectionals	2025-06-22	2025 NE NSSC June 21 Springfield Specialty venue
100 Breaststroke	LCM	1:46.03	+17.94s to B·+36.34s to Sectionals	2025-04-26	2025 NE NSSC April 25&27 Specialty venue
50 Butterfly	LCM	32.01	BB+1.82s to A·+5.72s to Futures	2026-05-30	2026 NE NSSC May Invitational at Colby fast pool
100 Butterfly	LCM	1:10.24	BB+5.05s to A·+10.05s to Sectionals	2026-01-01	2026 NE SHAWMUT America's Cup
200 Butterfly	LCM	2:34.28	BB+8.89s to A·+17.99s to Sectionals	2026-01-01	2026 NE SHAWMUT America's Cup
200 Individual Medley	LCM	2:58.02	+4.73s to B·+41.83s to Sectionals	2025-04-25	2025 NE NSSC April 25&27 Specialty venue

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	24.83	flying	200 Free Relay (leg 3)	2026-02-01	2026 NE GS Silver Championships
100 Freestyle	SCY	55.07	flat	400 Free Relay	2025-03-16	2025 NE STRM NEW ENGLAND YMCA CHAMPIONSHIPS
100 Freestyle	SCY	58.07	flying	400 Free Relay (leg 3)	2025-01-04	2025 NE YNS YMCA Eastern MA District Champ
50 Butterfly	SCY	28.31	flying	200 Medley Relay (leg 3)	2025-01-04	2025 NE YNS YMCA Eastern MA District Champ

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

2981 points (6/6 events)

Event	Time	Points
500 FR SCY	5:09.33	682
200 BK SCY	2:34.67	339
200 BR SCY	2:49.48	370
200 FL SCY	2:11.90	576
200 IM SCY	2:20.23	490
400 IM SCY	4:55.03	524

IMR 17-18 · SCY

2314 points (5/5 events)

Event	Time	Points
200 FR SCY	1:56.41	637
100 BK SCY	1:12.22	310
100 BR SCY	1:20.62	334
100 FL SCY	1:00.17	543
200 IM SCY	2:20.23	490

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

PR splits

100 Freestyle SCY 55.44

26.79

28.65

Front half 26.79s · back half 28.65s

200 Freestyle SCY 1:56.41

26.66

29.68

30.20

29.87

Front half 56.34s · back half 60.07s

500 Freestyle SCY 5:09.33

27.27

30.63

31.52

31.94

31.54

32.12

31.38

31.06

31.59

30.28

Front half 152.90s · back half 156.43s

1000 Freestyle SCY 10:40.49

27.71

31.21

32.16

32.48

32.82

33.11

32.65

32.74

32.67

32.06

32.63

32.07

32.63

31.98

32.53

32.47

32.20

32.70

31.02

30.65

Front half 319.61s · back half 320.88s

1650 Freestyle SCY 18:52.80 split/total mismatch

28.66

32.75

34.11

34.97

34.95

35.23

34.48

34.76

35.53

35.23

35.32

35.22

35.01

35.73

35.26

34.82

34.33

34.17

34.39

34.74

34.94

33.54

33.69

34.00

34.19

34.16

35.04

34.87

35.09

34.94

34.04

33.31

31.33

100 Backstroke SCY 1:12.22

35.17

37.05

Front half 35.17s · back half 37.05s

200 Backstroke SCY 2:34.67

36.78

39.18

40.29

38.42

Front half 75.96s · back half 78.71s

50 Breaststroke SCY 39.11 split/total mismatch

26.35

29.90

31.60

30.97

28.85

33.22

44.61

31.11

100 Breaststroke SCY 1:20.62 split/total mismatch

38.46

3.70

Front half 38.46s · back half 42.16s

200 Breaststroke SCY 2:49.48

37.17

44.48

45.99

41.84

Front half 81.65s · back half 87.83s

100 Butterfly SCY 1:00.17

28.52

31.65

Front half 28.52s · back half 31.65s

200 Butterfly SCY 2:11.90

29.12

32.52

35.48

34.78

Front half 61.64s · back half 70.26s

100 Individual Medley SCY 1:03.57

29.00

34.57

Front half 29.00s · back half 34.57s

200 Individual Medley SCY 2:20.23

28.94

35.95

45.20

30.14

Front half 64.89s · back half 75.34s

400 Individual Medley SCY 4:55.03

30.91

35.15

38.41

37.85

45.48

44.82

31.91

30.50

Front half 142.32s · back half 152.71s

200 Freestyle LCM 2:14.37

65.11

69.26

Front half 65.11s · back half 69.26s

400 Freestyle LCM 4:44.37 split/total mismatch

68.08

74.11

73.14

69.04

800 Freestyle LCM 9:57.22

32.51

37.76

37.80

38.18

38.66

38.20

38.23

38.24

37.83

37.77

38.31

37.86

37.59

37.43

36.89

33.96

Front half 299.58s · back half 297.64s

1500 Freestyle LCM 18:51.32

31.64

35.47

38.25

38.10

19.23

18.73

37.82

37.89

37.45

38.53

38.07

38.67

38.54

37.65

38.75

38.20

37.51

38.33

38.18

38.16

37.85

37.68

37.44

38.55

38.89

37.93

39.25

37.85

110.71

100 Backstroke LCM 1:21.88

42.12

39.76

Front half 42.12s · back half 39.76s

200 Backstroke LCM 3:00.17

44.19

46.20

45.89

43.89

Front half 90.39s · back half 89.78s

200 Butterfly LCM 2:34.28 split/total mismatch

71.08

12.12

Front half 71.08s · back half 83.20s

200 Individual Medley LCM 2:58.02

84.71

93.31

Front half 84.71s · back half 93.31s

Progression

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

50 Freestyle SCY 25.12 22 swims

100 Freestyle SCY 55.44 17 swims

200 Freestyle SCY 1:56.41 21 swims

500 Freestyle SCY 5:09.33 11 swims

1000 Freestyle SCY 10:40.49 7 swims

1650 Freestyle SCY 18:52.80 3 swims

50 Backstroke SCY 32.75 3 swims

100 Backstroke SCY 1:12.22 5 swims

200 Backstroke SCY 2:34.67 5 swims

50 Breaststroke SCY 39.11 2 swims

100 Breaststroke SCY 1:20.62 4 swims

200 Breaststroke SCY 2:49.48 2 swims

50 Butterfly SCY 27.82 6 swims

100 Butterfly SCY 1:00.17 17 swims

200 Butterfly SCY 2:11.90 10 swims

100 Individual Medley SCY 1:03.57 2 swims

200 Individual Medley SCY 2:20.23 4 swims

400 Individual Medley SCY 4:55.03 2 swims

50 Freestyle LCM 28.46 8 swims

100 Freestyle LCM 1:00.89 10 swims

200 Freestyle LCM 2:14.37 15 swims

400 Freestyle LCM 4:44.37 10 swims

800 Freestyle LCM 9:57.22 3 swims

1500 Freestyle LCM 18:51.32 6 swims

50 Backstroke LCM 41.33 1 swim

100 Backstroke LCM 1:21.88 5 swims

200 Backstroke LCM 3:00.17 3 swims

100 Breaststroke LCM 1:46.03 1 swim

50 Butterfly LCM 32.01 6 swims

100 Butterfly LCM 1:10.24 11 swims

200 Butterfly LCM 2:34.28 11 swims

200 Individual Medley LCM 2:58.02 2 swims