Sebastian Shields

Mage 12MENEBGSCGSCNYCYPPSCUN

346 plausible swims · 63 meets · 1998-04-02 → 2026-01-01

Personal records

Event	Course	Best	Cut	Date	Meet
25 Freestyle	SCY	13.67		2019-06-23	2019 ME LRSC Sprint Meet - Approved
50 Freestyle	SCY	23.75	AAAA	2022-12-10	2022 ME BASA Bowdoin Open venue
100 Freestyle	SCY	51.50	AAAA	2023-02-03	2023 NE CRIM Silver Championships
200 Freestyle	SCY	1:50.67	AAAA	2024-03-08	2024 NE CRIM 15-19 AG Championships venue
500 Freestyle	SCY	4:56.95	AAAA	2024-03-09	2024 NE CRIM 15-19 AG Championships venue
1000 Freestyle	SCY	10:28.68	AAAA	2024-03-07	2024 NE CRIM 15-19 AG Championships venue
1650 Freestyle	SCY	17:33.43	AAAA	2024-03-10	2024 NE CRIM 15-19 AG Championships venue
25 Backstroke	SCY	17.84		2019-06-23	2019 ME LRSC Sprint Meet - Approved venue
50 Backstroke	SCY	35.47	BB+2.78s to A	2018-12-09	2018 ME BASA Bowdoin Open venue
100 Backstroke	SCY	57.79	AAAA	2023-11-17	2023 ME ABF Nov Trial/Finals Meet
200 Backstroke	SCY	2:13.88	AAA+4.19s to AAAA	2022-12-11	2022 ME BASA Bowdoin Open venue
25 Breaststroke	SCY	18.37		2019-06-23	2019 ME LRSC Sprint Meet - Approved venue
50 Breaststroke	SCY	42.36	B+2.27s to BB	2019-03-09	2019 ME LRSC Winter Champs Trials Meet venue
100 Breaststroke	SCY	1:03.79	AAAA	2021-04-30	2021 ME Winter Champs
200 Breaststroke	SCY	2:22.64	AAAA	2021-04-30	2021 ME Winter Champs
50 Butterfly	SCY	41.83	+4.74s to B	2018-07-15	2018 ME SEAL Summer SYOA slow pool
100 Butterfly	SCY	53.28	AAAA	2023-11-17	2023 ME ABF Nov Trial/Finals Meet
200 Butterfly	SCY	2:47.30	B+3.21s to BB	2019-11-24	2018 ME BASA Bowdoin Open
100 Individual Medley	SCY	1:08.13	A+1.14s to AA	2021-11-07	2021 ME Andrew Selsikar Meet venue
200 Individual Medley	SCY	2:14.72	AAA+2.63s to AAAA	2022-12-11	2022 ME BASA Bowdoin Open venue
400 Individual Medley	SCY	4:28.98	AAAA	2024-03-08	2024 NE CRIM 15-19 AG Championships venue
50 Freestyle	SCM	29.14	AA+0.65s to AAA	2021-07-31	2021 MESI End of Season Meet venue
100 Freestyle	SCM	1:02.95	AA+0.86s to AAA	2021-07-31	2021 MESI End of Season Meet venue
200 Freestyle	SCM	2:15.77	AA+0.28s to AAA	2021-07-31	2021 MESI End of Season Meet venue
50 Freestyle	LCM	27.94	AAAA	2022-07-16	2022 ME SUMMER LCM CHAMPS venue
100 Freestyle	LCM	59.18	AAAA	2023-07-16	2023 ME LCM CHAMPS venue
200 Freestyle	LCM	2:06.99	AAAA	2023-07-14	2023 ME LCM CHAMPS venue
400 Freestyle	LCM	4:27.76	AAAA	2023-07-15	2023 ME LCM CHAMPS venue
800 Freestyle	LCM	9:30.51	AAAA	2023-07-13	2023 ME LCM CHAMPS venue
1500 Freestyle	LCM	18:31.34	AAAA	2023-07-16	2023 ME LCM CHAMPS venue
100 Backstroke	LCM	1:09.80	AAAA	2023-07-13	2023 ME LCM CHAMPS venue
200 Backstroke	LCM	2:32.19	AAAA	2023-07-16	2023 ME LCM CHAMPS venue
50 Breaststroke	LCM	46.48	B+0.59s to BB	2019-07-27	2019 ME Maine Swimming International Invite slow pool
100 Breaststroke	LCM	1:31.00	A+3.81s to AA	2023-01-01	Gator Swimming Seekonk Spring Fling
100 Butterfly	LCM	1:49.86	+14.77s to B	2019-07-25	2019 ME Maine Swimming International Invite slow pool
200 Individual Medley	LCM	3:23.58	B+13.99s to BB	2019-07-27	2019 ME Maine Swimming International Invite slow pool
400 Individual Medley	LCM	5:35.91	AAA+7.52s to AAAA	2022-07-17	pdf results

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.

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	25.86	flat	200 Free Relay	2021-05-01	2021 ME Winter Champs
50 Freestyle	SCY	34.61	flying	200 Free Relay (leg 3)	2018-03-18	2018 ME Junior Olympics Championship
100 Freestyle	SCY	54.05	flying	400 Free Relay (leg 4)	2022-12-11	2022 ME BASA Bowdoin Open
100 Breaststroke	SCY	1:11.16	flying	400 Medley Relay (leg 2)	2022-12-10	2022 ME BASA Bowdoin Open
100 Freestyle	LCM	1:04.08	flying	400 Free Relay (leg 3)	2022-07-15	2022 ME SUMMER LCM CHAMPS
100 Freestyle	LCM	1:00.93	flying	400 Medley Relay (leg 4)	2023-07-13	2023 ME LCM CHAMPS
100 Backstroke	LCM	1:14.01	flat	400 Medley Relay	2022-07-16	2022 ME SUMMER LCM CHAMPS

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 11-12 · SCY

5332 points (5/5 events)

Event	Time	Points
500 FR SCY	4:56.95	1100
100 BK SCY	57.79	1090
100 BR SCY	1:03.79	1100
100 FL SCY	53.28	1100
200 IM SCY	2:14.72	942

IMR 11-12 · SCY

2990 points (5/5 events)

Event	Time	Points
200 FR SCY	1:50.67	1100
50 BK SCY	35.47	501
50 BR SCY	42.36	410
50 FL SCY	41.83	259
100 IM SCY	1:08.13	720

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

PR splits

100 Freestyle SCY 51.50 split/total mismatch

24.84

1.82

Front half 24.84s · back half 26.66s

200 Freestyle SCY 1:50.67

25.36

28.28

29.09

27.94

Front half 53.64s · back half 57.03s

500 Freestyle SCY 4:56.95

26.42

29.16

29.66

30.19

30.37

30.22

30.74

31.24

29.31

29.64

Front half 145.80s · back half 151.15s

1000 Freestyle SCY 10:28.68

27.37

30.23

30.89

30.46

30.50

30.79

31.18

31.14

31.43

31.54

31.68

31.97

32.18

32.12

32.65

33.00

33.09

32.50

31.31

Front half 305.53s · back half 323.15s

1650 Freestyle SCY 17:33.43

27.00

30.16

31.00

31.39

31.50

31.36

31.58

31.48

31.81

31.73

31.75

31.68

31.92

31.83

31.96

31.98

32.17

32.49

32.15

32.53

32.61

33.14

32.83

31.69

32.32

32.71

33.18

32.76

32.77

32.92

32.59

32.35

32.09

200 Backstroke SCY 2:13.88

30.81

34.11

34.97

33.99

Front half 64.92s · back half 68.96s

100 Breaststroke SCY 1:03.79 split/total mismatch

33.94

37.10

31.02

32.77

200 Breaststroke SCY 2:22.64 split/total mismatch

35.29

40.92

43.01

41.47

32.36

35.08

37.79

37.41

100 Individual Medley SCY 1:08.13

30.96

37.17

Front half 30.96s · back half 37.17s

200 Individual Medley SCY 2:14.72

29.74

34.49

40.87

29.62

Front half 64.23s · back half 70.49s

400 Individual Medley SCY 4:28.98

27.60

34.41

33.89

34.03

39.96

40.41

29.70

28.98

Front half 129.93s · back half 139.05s

100 Freestyle SCM 1:02.95

30.46

32.49

Front half 30.46s · back half 32.49s

200 Freestyle SCM 2:15.77

30.45

34.06

35.77

35.49

Front half 64.51s · back half 71.26s

100 Freestyle LCM 59.18

28.23

30.95

Front half 28.23s · back half 30.95s

200 Freestyle LCM 2:06.99

29.36

32.02

32.91

32.70

Front half 61.38s · back half 65.61s

400 Freestyle LCM 4:27.76

29.67

32.73

33.60

34.59

33.79

35.30

34.50

33.58

Front half 130.59s · back half 137.17s

800 Freestyle LCM 9:30.51

19.76

10.13

34.93

33.74

37.35

34.61

36.60

35.91

36.34

26.06

10.21

36.10

26.82

191.95

Front half 207.12s · back half 363.39s

1500 Freestyle LCM 18:31.34

31.71

35.57

35.10

37.66

36.67

37.72

36.58

37.10

36.75

37.44

38.28

38.93

36.41

37.58

32.13

43.24

36.94

37.38

37.24

38.74

25.95

48.71

37.79

37.78

37.16

37.47

37.45

38.02

22.61

49.23

Front half 545.63s · back half 565.71s

200 Backstroke LCM 2:32.19 RT 0.73s

36.30

38.40

38.87

38.62

Front half 74.70s · back half 77.49s

100 Breaststroke LCM 1:31.00 split/total mismatch

43.39

4.22

Front half 43.39s · back half 47.61s

100 Butterfly LCM 1:49.86

50.04

59.82

Front half 50.04s · back half 59.82s

200 Individual Medley LCM 3:23.58

49.90

50.30

61.06

42.32

Front half 100.20s · back half 103.38s

Reaction time

fastest 0.68s average 0.713s slowest 0.73s 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.

25 Freestyle SCY 13.67 2 swims

50 Freestyle SCY 23.75 35 swims

100 Freestyle SCY 51.50 28 swims

200 Freestyle SCY 1:50.67 23 swims

500 Freestyle SCY 4:56.95 19 swims

1000 Freestyle SCY 10:28.68 4 swims

1650 Freestyle SCY 17:33.43 8 swims

25 Backstroke SCY 17.84 4 swims

50 Backstroke SCY 35.47 14 swims

100 Backstroke SCY 57.79 33 swims

200 Backstroke SCY 2:13.88 18 swims

25 Breaststroke SCY 18.37 1 swim

50 Breaststroke SCY 42.36 14 swims

100 Breaststroke SCY 1:03.79 18 swims

200 Breaststroke SCY 2:22.64 7 swims

50 Butterfly SCY 41.83 4 swims

100 Butterfly SCY 53.28 15 swims

200 Butterfly SCY 2:47.30 2 swims

100 Individual Medley SCY 1:08.13 16 swims

200 Individual Medley SCY 2:14.72 19 swims

400 Individual Medley SCY 4:28.98 9 swims

50 Freestyle SCM 29.14 1 swim

100 Freestyle SCM 1:02.95 1 swim

200 Freestyle SCM 2:15.77 1 swim

50 Freestyle LCM 27.94 6 swims

100 Freestyle LCM 59.18 6 swims

200 Freestyle LCM 2:06.99 7 swims

400 Freestyle LCM 4:27.76 5 swims

800 Freestyle LCM 9:30.51 4 swims

1500 Freestyle LCM 18:31.34 3 swims

100 Backstroke LCM 1:09.80 3 swims

200 Backstroke LCM 2:32.19 6 swims

50 Breaststroke LCM 46.48 3 swims

100 Breaststroke LCM 1:31.00 3 swims

100 Butterfly LCM 1:49.86 1 swim

200 Individual Medley LCM 3:23.58 1 swim

400 Individual Medley LCM 5:35.91 2 swims