William Clerkin

Mage 17EZNEUVAC

168 plausible swims · 29 meets · 2024-03-07 → 2026-06-28

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	22.58	AA+0.49s to AAA	2025-12-07	2025 NE UVAC Winter Classic venue
100 Freestyle	SCY	49.49	AA+1.20s to AAA	2025-12-06	2025 NE UVAC Winter Classic venue
200 Freestyle	SCY	1:47.40	AA+1.01s to AAA	2025-12-19	2026 NE NSSC Senior Championships venue
500 Freestyle	SCY	4:55.05	AA+6.46s to AAA	2025-03-29	2025 EZ North Speedo Short Course Sectionals venue
1000 Freestyle	SCY	10:14.76	AA+10.27s to AAA	2024-03-07	2024 NE CRIM 15-19 AG Championships venue
1650 Freestyle	SCY	18:10.98	A+35.29s to AA	2025-01-19	2025 NE UVAC Bronze Championships venue
50 Backstroke	SCY	25.97	A+0.28s to AA	2025-12-19	2026 NE NSSC Senior Championships venue
100 Backstroke	SCY	52.96	AA+0.47s to AAA	2026-03-28	2026 EZ North Speedo Short Course Sectionals venue
200 Backstroke	SCY	1:54.55	AAA+4.96s to AAAA	2026-03-29	2026 EZ North Speedo Short Course Sectionals venue
50 Breaststroke	SCY	30.71	A+1.12s to AA	2025-10-19	2025 NE ATST Western Mass Showdown - copied slow pool
100 Breaststroke	SCY	1:02.28	A+0.19s to AA	2025-12-07	2025 NE UVAC Winter Classic venue
200 Breaststroke	SCY	2:16.88	A+1.99s to AA	2026-01-10	2026 NE CRA New Year Distance and Specialty venue
50 Butterfly	SCY	25.93	A+0.34s to AA	2025-10-19	2025 NE ATST Western Mass Showdown - copied slow pool
100 Butterfly	SCY	57.64	BB+0.95s to A	2025-02-02	2025 NE UVAC Silvers venue
200 Butterfly	SCY	2:18.08	BB+10.59s to A	2026-01-04	2026 NE UVAC CVI Invitational venue
100 Individual Medley	SCY	56.46		2026-01-10	2026 NE CRA New Year Distance and Specialty venue
200 Individual Medley	SCY	1:58.32	AA+0.83s to AAA	2026-03-29	2026 EZ North Speedo Short Course Sectionals venue
400 Individual Medley	SCY	4:17.39	AA+4.40s to AAA	2025-12-05	2025 NE UVAC Winter Classic venue
50 Freestyle	LCM	27.22	A+0.53s to AA	2024-07-28	2024 NE MST ESC Summer of '24 Team Specialty slow pool
100 Freestyle	LCM	1:02.54	BB+1.95s to A	2024-06-29	2024 NE MST ESC June Memorial slow pool
200 Freestyle	LCM	2:15.82	BB+2.53s to A	2026-01-01	2026 ne mst june memorial results
400 Freestyle	LCM	4:49.18	BB+4.89s to A	2024-06-28	2024 NE MST ESC June Memorial slow pool
800 Freestyle	LCM	9:44.19	A+18.00s to AA	2024-07-26	2024 NE MST ESC Summer of '24 Team Specialty slow pool
50 Backstroke	LCM	31.42	A+0.73s to AA	2026-01-01	2026 ne mst june memorial results
100 Backstroke	LCM	1:08.44	BB+0.95s to A	2024-07-11	2024 NE BGSC LCM Senior Championships venue
200 Backstroke	LCM	2:23.02	A+2.03s to AA	2024-07-12	2024 NE BGSC LCM Senior Championships venue
50 Breaststroke	LCM	37.56	BB+2.57s to A	2026-01-01	2026 ne mst june memorial results
50 Butterfly	LCM	30.07	A+1.18s to AA	2024-07-28	2024 NE MST ESC Summer of '24 Team Specialty slow pool
200 Individual Medley	LCM	2:35.84	BB+7.25s to A	2024-07-27	2024 NE MST ESC Summer of '24 Team Specialty slow pool
400 Individual Medley	LCM	5:32.01	BB+13.02s to A	2026-01-01	2026 ne mst june memorial results

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.

Fastest relay legs

Leg	Course	Time	Start	Relay	Date	Meet
50 Freestyle	SCY	22.50	flat	200 Free Relay	2026-03-29	2026 EZ North Speedo Short Course Sectionals
50 Freestyle	SCY	22.16	flying	200 Free Relay (leg 2)	2025-12-20	2026 NE NSSC Senior Championships
100 Freestyle	SCY	48.52	flying	400 Free Relay (leg 4)	2026-03-28	2026 EZ North Speedo Short Course Sectionals
50 Backstroke	SCY	26.31	flat	200 Medley Relay	2024-03-09	2024 NE CRIM 15-19 AG Championships
50 Breaststroke	SCY	28.79	flying	200 Medley Relay (leg 2)	2025-03-15	2025 NE UVAC NHSA State Championships
50 Butterfly	SCY	23.73	flying	200 Medley Relay (leg 3)	2025-12-18	2026 NE NSSC Senior Championships
100 Butterfly	SCY	54.45	flying	400 Medley Relay (leg 3)	2025-12-21	2026 NE NSSC Senior 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

4431 points (6/6 events)

Event	Time	Points
500 FR SCY	4:55.05	786
200 BK SCY	1:54.55	835
200 BR SCY	2:16.88	702
200 FL SCY	2:18.08	502
200 IM SCY	1:58.32	816
400 IM SCY	4:17.39	790

IMR 17-18 · SCY

3756 points (5/5 events)

Event	Time	Points
200 FR SCY	1:47.40	811
100 BK SCY	52.96	786
100 BR SCY	1:02.28	726
100 FL SCY	57.64	617
200 IM SCY	1:58.32	816

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

PR splits

100 Freestyle SCY 49.49

23.73

25.76

Front half 23.73s · back half 25.76s

200 Freestyle SCY 1:47.40

24.59

26.95

27.84

28.02

Front half 51.54s · back half 55.86s

500 Freestyle SCY 4:55.05

26.16

28.79

29.84

30.04

30.31

30.25

29.81

30.26

30.64

28.95

Front half 145.14s · back half 149.91s

1000 Freestyle SCY 10:14.76

26.96

29.85

30.08

30.51

30.54

31.19

31.05

30.79

31.23

31.31

31.41

31.33

31.32

31.48

31.52

31.10

30.89

30.70

30.09

Front half 303.51s · back half 311.25s

1650 Freestyle SCY 18:10.98

29.33

33.69

33.81

34.13

33.90

33.24

33.51

33.68

33.31

33.48

33.36

33.04

32.88

33.18

33.16

33.18

32.92

33.07

33.15

33.23

33.05

33.26

32.89

33.26

33.02

33.01

33.22

32.69

32.77

32.63

30.88

100 Backstroke SCY 52.96 RT 0.58s

25.70

27.26

Front half 25.70s · back half 27.26s

200 Backstroke SCY 1:54.55 RT 0.58s

26.80

28.81

29.40

29.54

Front half 55.61s · back half 58.94s

100 Breaststroke SCY 1:02.28

29.26

33.02

Front half 29.26s · back half 33.02s

200 Breaststroke SCY 2:16.88

31.46

35.26

35.09

35.07

Front half 66.72s · back half 70.16s

100 Butterfly SCY 57.64

26.77

30.87

Front half 26.77s · back half 30.87s

200 Butterfly SCY 2:18.08

30.15

35.85

36.14

35.94

Front half 66.00s · back half 72.08s

100 Individual Medley SCY 56.46

26.22

30.24

Front half 26.22s · back half 30.24s

200 Individual Medley SCY 1:58.32

25.90

29.70

35.22

27.50

Front half 55.60s · back half 62.72s

400 Individual Medley SCY 4:17.39

26.75

31.11

32.93

31.90

37.52

37.65

30.24

29.29

Front half 122.69s · back half 134.70s

200 Freestyle LCM 2:15.82 split/total mismatch

65.74

4.34

Front half 65.74s · back half 70.08s

400 Freestyle LCM 4:49.18

66.88

72.68

74.82

74.80

Front half 139.56s · back half 149.62s

800 Freestyle LCM 9:44.19

67.51

73.15

74.08

74.55

74.85

74.23

74.38

71.44

Front half 289.29s · back half 294.90s

100 Backstroke LCM 1:08.44

32.86

35.58

Front half 32.86s · back half 35.58s

200 Backstroke LCM 2:23.02

32.91

36.03

36.84

37.24

Front half 68.94s · back half 74.08s

200 Individual Medley LCM 2:35.84

75.60

80.24

Front half 75.60s · back half 80.24s

400 Individual Medley LCM 5:32.01 split/total mismatch

74.58

84.90

96.23

76.30

Reaction time

fastest 0.55s average 0.573s slowest 0.58s 4 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 22.58 12 swims

100 Freestyle SCY 49.49 12 swims

200 Freestyle SCY 1:47.40 20 swims

500 Freestyle SCY 4:55.05 12 swims

1000 Freestyle SCY 10:14.76 5 swims

1650 Freestyle SCY 18:10.98 1 swim

50 Backstroke SCY 25.97 1 swim

100 Backstroke SCY 52.96 17 swims

200 Backstroke SCY 1:54.55 22 swims

50 Breaststroke SCY 30.71 1 swim

100 Breaststroke SCY 1:02.28 9 swims

200 Breaststroke SCY 2:16.88 1 swim

50 Butterfly SCY 25.93 2 swims

100 Butterfly SCY 57.64 2 swims

200 Butterfly SCY 2:18.08 1 swim

100 Individual Medley SCY 56.46 2 swims

200 Individual Medley SCY 1:58.32 10 swims

400 Individual Medley SCY 4:17.39 3 swims

50 Freestyle LCM 27.22 6 swims

100 Freestyle LCM 1:02.54 1 swim

200 Freestyle LCM 2:15.82 4 swims

400 Freestyle LCM 4:49.18 1 swim

800 Freestyle LCM 9:44.19 1 swim

50 Backstroke LCM 31.42 4 swims

100 Backstroke LCM 1:08.44 5 swims

200 Backstroke LCM 2:23.02 5 swims

50 Breaststroke LCM 37.56 2 swims

50 Butterfly LCM 30.07 2 swims

200 Individual Medley LCM 2:35.84 2 swims

400 Individual Medley LCM 5:32.01 2 swims