Hayden Karasiewicz

Fage 12EZMAMDPVVABAY

421 plausible swims · 76 meets · 2021-03-06 → 2026-05-30

Personal records

Event	Course	Best	Cut	Date	Meet
25 Freestyle	SCY	14.52		2022-04-03	2022 LBA Sprint to the Finish Mini Meet venue
50 Freestyle	SCY	26.79	AAA+1.00s to AAAA	2026-03-08	2026 MD LSC 14 & U Championships venue
100 Freestyle	SCY	59.81	AA+1.12s to AAA	2025-12-12	2025 East Coast WinterFest venue
200 Freestyle	SCY	2:10.55	AA+2.16s to AAA	2026-02-06	2026 Last Chance Qualifying Meet
500 Freestyle	SCY	5:59.02	AA+15.43s to AAA	2026-01-23	2026 USAS IMX Games fast pool
1000 Freestyle	SCY	12:38.88	A+17.39s to AA	2025-12-21	The Grinch Stole My Times (distance) 2025 venue
1650 Freestyle	SCY	20:50.72	A+12.53s to AA	2025-12-21	The Grinch Stole My Times (distance) 2025 venue
25 Backstroke	SCY	18.83		2022-04-03	2022 LBA Sprint to the Finish Mini Meet venue
50 Backstroke	SCY	31.78	AA+1.29s to AAA	2025-12-12	2025 East Coast WinterFest venue
100 Backstroke	SCY	1:05.57	AAA+2.88s to AAAA	2026-03-08	2026 MD LSC 14 & U Championships venue
200 Backstroke	SCY	2:29.05	A+1.16s to AA	2025-12-14	2025 East Coast WinterFest venue
25 Breaststroke	SCY	21.05		2022-04-03	2022 LBA Sprint to the Finish Mini Meet venue
50 Breaststroke	SCY	37.25	A+1.06s to AA	2026-02-07	2026 Last Chance Qualifying Meet fast pool
100 Breaststroke	SCY	1:19.19	A+0.50s to AA	2026-01-23	2026 USAS IMX Games fast pool
200 Breaststroke	SCY	2:49.70	A+0.61s to AA	2026-02-08	2026 Last Chance Qualifying Meet fast pool
25 Butterfly	SCY	15.80		2022-04-03	2022 LBA Sprint to the Finish Mini Meet venue
50 Butterfly	SCY	28.86	AAA+1.07s to AAAA	2026-03-06	2026 MD LSC 14 & U Championships venue
100 Butterfly	SCY	1:03.22	AAA+1.23s to AAAA	2026-03-08	2026 MD LSC 14 & U Championships venue
200 Butterfly	SCY	2:28.99	AA+4.90s to AAA	2026-03-07	2026 MD LSC 14 & U Championships venue
100 Individual Medley	SCY	1:07.89	AA+0.90s to AAA	2025-11-14	ISCA Fall Classic Championship 2025 venue
200 Individual Medley	SCY	2:25.86	AA+1.27s to AAA	2026-01-24	2026 USAS IMX Games fast pool
400 Individual Medley	SCY	5:16.71	AA+8.42s to AAA	2025-12-20	The Grinch Stole My Times (distance) 2025 venue
50 Freestyle	LCM	30.94	AA+0.25s to AAA	2025-07-20	2025 MD Long Course Last Chance Meet venue
100 Freestyle	LCM	1:09.94	AA+2.65s to AAA	2025-07-30	2025 MD LSC LC Championships venue
200 Freestyle	LCM	2:37.50	A+4.01s to AA	2025-05-11	2025 NAAC MOTHER'S DAY MEET venue
400 Freestyle	LCM	5:29.69	A+6.90s to AA	2025-07-18	2025 MD Long Course Last Chance Meet venue
50 Backstroke	LCM	37.25	A+0.36s to AA	2025-07-19	2025 MD Long Course Last Chance Meet venue
100 Backstroke	LCM	1:21.78	A+0.99s to AA	2025-07-20	2025 MD Long Course Last Chance Meet venue
200 Backstroke	LCM	2:52.65	A+1.66s to AA	2025-07-30	2025 MD LSC LC Championships venue
50 Breaststroke	LCM	44.43	BB+1.74s to A	2025-07-20	2025 MD Long Course Last Chance Meet venue
100 Breaststroke	LCM	1:42.14	BB+8.15s to A	2025-07-13	2025 NBAC Mid Summer Classic venue
200 Breaststroke	LCM	3:42.81	B+2.52s to BB	2024-07-01	KA Firecracker Classic Long Course A/BB/C Invitational
50 Butterfly	LCM	33.51	AA+0.62s to AAA	2025-07-31	2025 MD LSC LC Championships venue
100 Butterfly	LCM	1:14.41	AAA+3.52s to AAAA	2023-08-02	Fox Swim Club
200 Butterfly	LCM	2:54.90	A+1.51s to AA	2023-08-02	Fox Swim Club
200 Individual Medley	LCM	2:56.92	A+3.73s to AA	2025-07-19	2025 MD Long Course Last Chance Meet venue
400 Individual Medley	LCM	6:17.43	A+8.74s to AA	2026-05-29	2026 Eagle Swim Team Speedo Sizzler venue

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	34.33	flat	200 Free Relay	2022-03-27	2022 Maryland 8 & Under Championship Meet
50 Freestyle	SCY	27.99	flying	200 Free Relay (leg 3)	2025-03-08	2025 MD LSC 14 & U Championships
100 Freestyle	SCY	1:13.39	flat	400 Free Relay	2023-11-19	2023 ISCA Fall Classic Championship
50 Backstroke	SCY	41.07	flat	200 Medley Relay	2021-11-06	2021 VA SwimRVA Fall Festival
50 Butterfly	SCY	28.77	flying	200 Medley Relay (leg 3)	2026-03-05	2026 MD LSC 14 & U Championships
100 Butterfly	SCY	1:06.41	flying	400 Medley Relay (leg 3)	2026-03-06	2026 MD LSC 14 & U Championships
100 Freestyle	LCM	1:14.16	flying	400 Free Relay (leg 3)	2024-08-01	2024 MD LSC LC Championships
100 Freestyle	LCM	1:13.05	flying	400 Medley Relay (leg 4)	2024-08-02	2024 MD LSC LC 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 11-12 · SCY

4145 points (5/5 events)

Event	Time	Points
500 FR SCY	5:59.02	760
100 BK SCY	1:05.57	873
100 BR SCY	1:19.19	735
100 FL SCY	1:03.22	933
200 IM SCY	2:25.86	844

IMR 11-12 · SCY

3989 points (5/5 events)

Event	Time	Points
200 FR SCY	2:10.55	813
50 BK SCY	31.78	766
50 BR SCY	37.25	694
50 FL SCY	28.86	883
100 IM SCY	1:07.89	833

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

PR splits

100 Freestyle SCY 59.81

29.19

30.62

Front half 29.19s · back half 30.62s

200 Freestyle SCY 2:10.55 split/total mismatch

30.64

33.89

Front half 30.64s · back half 99.91s

500 Freestyle SCY 5:59.02

30.44

35.20

36.19

36.99

37.78

37.52

37.65

37.46

36.24

33.55

Front half 176.60s · back half 182.42s

1000 Freestyle SCY 12:38.88

32.35

69.68

107.16

145.09

183.34

221.46

259.65

297.92

336.35

374.73

413.05

451.49

490.16

528.26

566.69

605.60

643.34

681.73

720.54

758.88

797.60

835.81

874.33

912.83

951.48

989.74

1028.37

1066.39

1104.71

1142.57

1180.52

1217.23

758.88

1650 Freestyle SCY 20:50.72

32.35

37.33

37.48

37.93

38.25

38.12

38.19

38.27

38.43

38.38

38.32

38.44

38.67

38.10

38.43

38.91

37.74

38.39

38.81

38.34

38.72

38.21

38.52

38.50

38.65

38.26

38.63

38.02

38.32

37.86

37.95

36.71

33.49

100 Backstroke SCY 1:05.57

32.54

33.03

Front half 32.54s · back half 33.03s

200 Backstroke SCY 2:29.05

35.44

38.21

38.28

37.12

Front half 73.65s · back half 75.40s

100 Breaststroke SCY 1:19.19

38.14

41.05

Front half 38.14s · back half 41.05s

200 Breaststroke SCY 2:49.70

38.47

42.94

43.71

44.58

Front half 81.41s · back half 88.29s

100 Butterfly SCY 1:03.22

30.31

32.91

Front half 30.31s · back half 32.91s

200 Butterfly SCY 2:28.99

31.78

37.38

39.84

39.99

Front half 69.16s · back half 79.83s

100 Individual Medley SCY 1:07.89

31.76

36.13

Front half 31.76s · back half 36.13s

200 Individual Medley SCY 2:25.86

30.71

37.94

43.39

33.82

Front half 68.65s · back half 77.21s

400 Individual Medley SCY 5:16.71

32.33

39.09

38.88

40.40

45.71

46.97

37.61

35.72

Front half 150.70s · back half 166.01s

200 Freestyle LCM 2:37.50

36.24

40.80

42.19

38.27

Front half 77.04s · back half 80.46s

400 Freestyle LCM 5:29.69

36.94

40.70

42.46

43.24

43.02

42.68

41.58

39.07

Front half 163.34s · back half 166.35s

100 Backstroke LCM 1:21.78

39.88

41.90

Front half 39.88s · back half 41.90s

100 Breaststroke LCM 1:42.14

49.30

52.84

Front half 49.30s · back half 52.84s

200 Breaststroke LCM 3:42.81 split/total mismatch

52.32

56.26

57.59

56.64

200 Individual Medley LCM 2:56.92

35.54

47.35

54.64

39.39

Front half 82.89s · back half 94.03s

400 Individual Medley LCM 6:17.43

38.38

45.52

48.26

46.93

53.44

55.37

46.29

43.24

Front half 179.09s · back half 198.34s

Reaction time

fastest 0.65s average 0.735s slowest 0.82s 2 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 14.52 1 swim

50 Freestyle SCY 26.79 34 swims

100 Freestyle SCY 59.81 26 swims

200 Freestyle SCY 2:10.55 20 swims

500 Freestyle SCY 5:59.02 8 swims

1000 Freestyle SCY 12:38.88 1 swim

1650 Freestyle SCY 20:50.72 1 swim

25 Backstroke SCY 18.83 1 swim

50 Backstroke SCY 31.78 28 swims

100 Backstroke SCY 1:05.57 22 swims

200 Backstroke SCY 2:29.05 4 swims

25 Breaststroke SCY 21.05 2 swims

50 Breaststroke SCY 37.25 15 swims

100 Breaststroke SCY 1:19.19 11 swims

200 Breaststroke SCY 2:49.70 5 swims

25 Butterfly SCY 15.80 2 swims

50 Butterfly SCY 28.86 30 swims

100 Butterfly SCY 1:03.22 22 swims

200 Butterfly SCY 2:28.99 8 swims

100 Individual Medley SCY 1:07.89 27 swims

200 Individual Medley SCY 2:25.86 17 swims

400 Individual Medley SCY 5:16.71 2 swims

50 Freestyle LCM 30.94 17 swims

100 Freestyle LCM 1:09.94 14 swims

200 Freestyle LCM 2:37.50 10 swims

400 Freestyle LCM 5:29.69 5 swims

50 Backstroke LCM 37.25 13 swims

100 Backstroke LCM 1:21.78 15 swims

200 Backstroke LCM 2:52.65 6 swims

50 Breaststroke LCM 44.43 9 swims

100 Breaststroke LCM 1:42.14 4 swims

200 Breaststroke LCM 3:42.81 1 swim

50 Butterfly LCM 33.51 16 swims

100 Butterfly LCM 1:14.41 12 swims

200 Butterfly LCM 2:54.90 4 swims

200 Individual Medley LCM 2:56.92 7 swims

400 Individual Medley LCM 6:17.43 1 swim