Cooper Zakorchemny

MEZMDMTPVVAGCRMSC

107 plausible swims · 18 meets · 2022-01-01 → 2026-05-31

Personal records

Event	Course	Best	Date	Meet
50 Freestyle	SCY	22.73	2025-11-01	NOVA Senior Classic venue
100 Freestyle	SCY	48.65	2025-11-02	NOVA Senior Classic venue
200 Freestyle	SCY	1:41.63	2025-11-01	NOVA Senior Classic venue
500 Freestyle	SCY	4:30.56	2025-10-10	2025 NTG Showdown venue
1000 Freestyle	SCY	9:19.95	2025-10-31	NOVA Senior Classic venue
1650 Freestyle	SCY	15:51.01	2025-12-11	2025 Riley Eaton Holiday Invitational venue
100 Backstroke	SCY	54.40	2025-11-01	NOVA Senior Classic venue
200 Backstroke	SCY	1:56.81	2025-10-11	2025 NTG Showdown venue
200 Breaststroke	SCY	2:39.22	2022-01-23	2022 VA WAC Mike Willard Polar Plunge venue
100 Butterfly	SCY	53.23	2025-11-01	NOVA Senior Classic venue
200 Butterfly	SCY	1:56.93	2026-03-08	2026 PV Short Course Open Championships venue
200 Individual Medley	SCY	1:57.50	2025-11-02	NOVA Senior Classic venue
400 Individual Medley	SCY	4:04.69	2025-12-12	2025 Riley Eaton Holiday Invitational venue
50 Freestyle	LCM	26.50	2026-05-29	Maryland State LC Championship venue
100 Freestyle	LCM	56.25	2026-05-30	Maryland State LC Championship venue
200 Freestyle	LCM	1:53.67	2025-08-02	2025 Speedo Junior National Championships fast pool
400 Freestyle	LCM	3:59.67	2025-08-01	2025 Speedo Junior National Championships fast pool
800 Freestyle	LCM	8:19.59	2025-08-03	2025 Speedo Junior National Championships fast pool
1500 Freestyle	LCM	16:10.41	2024-05-16	2024 EZ LC Speedo Super Sectional venue
200 Backstroke	LCM	2:15.12	2025-05-18	2025 EZ LC Speedo Super Sectional venue
100 Butterfly	LCM	1:03.00	2026-05-31	Maryland State LC Championship venue
200 Butterfly	LCM	2:11.93	2025-05-17	2025 EZ LC Speedo Super Sectional venue
200 Individual Medley	LCM	2:17.46	2026-05-30	Maryland State LC Championship venue
400 Individual Medley	LCM	4:38.91	2025-07-31	2025 Speedo Junior National Championships fast pool

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	23.35	flat	200 Free Relay	2026-01-31	2026 WMPSSDL Championships
50 Freestyle	SCY	23.21	flying	200 Free Relay (leg 2)	2026-02-09	2026 METRO Championships
100 Freestyle	SCY	50.31	flat	400 Free Relay	2026-01-18	National Catholic H.S. Championship 2026
50 Freestyle	LCM	25.25	flying	200 Free Relay (leg 4)	2025-07-30	2025 Speedo Junior National Championships
50 Freestyle	LCM	25.26	flying	200 Medley Relay (leg 4)	2025-08-01	2025 Speedo Junior National Championships
100 Freestyle	LCM	54.66	flying	400 Free Relay (leg 4)	2025-08-02	2025 Speedo Junior National Championships
200 Freestyle	LCM	1:53.80	flat	800 Free Relay	2025-07-31	2025 Speedo Junior National Championships
200 Freestyle	LCM	1:57.96	flying	800 Free Relay (leg 2)	2026-05-16	2026 EZ LC Speedo Super Sectionals

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

PR splits

100 Freestyle SCY 48.65

23.59

25.06

Front half 23.59s · back half 25.06s

200 Freestyle SCY 1:41.63

23.87

25.42

25.93

26.41

Front half 49.29s · back half 52.34s

500 Freestyle SCY 4:30.56

25.22

27.40

27.53

27.30

27.27

27.45

27.37

27.21

26.51

Front half 134.75s · back half 135.81s

1000 Freestyle SCY 9:19.95

24.99

27.28

27.42

27.65

27.76

28.21

27.89

27.98

28.20

28.19

28.13

28.68

28.33

28.58

28.63

28.47

28.39

28.82

28.66

27.69

Front half 275.57s · back half 284.38s

1650 Freestyle SCY 15:51.01

25.31

27.65

27.99

27.97

27.96

28.14

28.27

28.56

28.66

28.74

28.63

28.40

28.59

28.78

28.87

29.22

28.75

29.14

29.24

29.08

29.46

29.45

29.39

29.65

29.72

29.63

29.48

30.49

29.57

29.69

29.52

28.87

100 Backstroke SCY 54.40

26.73

27.67

Front half 26.73s · back half 27.67s

200 Backstroke SCY 1:56.81

27.93

29.11

30.08

29.69

Front half 57.04s · back half 59.77s

200 Breaststroke SCY 2:39.22

36.19

40.60

41.12

41.31

Front half 76.79s · back half 82.43s

100 Butterfly SCY 53.23

25.00

28.23

Front half 25.00s · back half 28.23s

200 Butterfly SCY 1:56.93

26.17

29.51

30.53

30.72

Front half 55.68s · back half 61.25s

200 Individual Medley SCY 1:57.50

25.56

29.74

35.47

26.73

Front half 55.30s · back half 62.20s

400 Individual Medley SCY 4:04.69

26.13

29.86

30.76

30.74

35.98

35.86

28.37

26.99

Front half 117.49s · back half 127.20s

100 Freestyle LCM 56.25

26.94

29.31

Front half 26.94s · back half 29.31s

200 Freestyle LCM 1:53.67 RT 0.72s

26.81

28.46

29.25

29.15

Front half 55.27s · back half 58.40s

400 Freestyle LCM 3:59.67

27.62

29.93

30.31

30.21

30.42

30.75

30.45

29.98

Front half 118.07s · back half 121.60s

800 Freestyle LCM 8:19.59

27.72

30.01

30.69

30.57

31.18

31.15

31.51

31.73

31.84

32.01

32.12

32.59

32.05

31.98

31.83

30.61

Front half 244.56s · back half 255.03s

1500 Freestyle LCM 16:10.41

29.56

32.11

32.44

32.40

32.34

31.93

32.49

32.35

32.51

32.40

32.43

32.41

32.77

32.67

32.18

32.75

32.34

32.77

32.62

32.99

32.26

33.13

32.59

33.18

32.49

32.31

32.72

32.76

31.58

30.93

Front half 482.99s · back half 487.42s

200 Backstroke LCM 2:15.12 RT 1.74s

65.71

69.41

Front half 65.71s · back half 69.41s

100 Butterfly LCM 1:03.00

29.21

33.79

Front half 29.21s · back half 33.79s

200 Butterfly LCM 2:11.93

29.74

33.69

34.55

33.95

Front half 63.43s · back half 68.50s

200 Individual Medley LCM 2:17.46

29.85

77.40

30.21

400 Individual Medley LCM 4:38.91 RT 0.79s

29.27

33.75

36.39

35.29

41.75

41.96

30.72

29.78

Front half 134.70s · back half 144.21s

Reaction time

fastest 0.68s average 0.897s slowest 1.74s 6 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 22.73 3 swims

100 Freestyle SCY 48.65 8 swims

200 Freestyle SCY 1:41.63 9 swims

500 Freestyle SCY 4:30.56 10 swims

1000 Freestyle SCY 9:19.95 4 swims

1650 Freestyle SCY 15:51.01 4 swims

100 Backstroke SCY 54.40 2 swims

200 Backstroke SCY 1:56.81 2 swims

200 Breaststroke SCY 2:39.22 1 swim

100 Butterfly SCY 53.23 5 swims

200 Butterfly SCY 1:56.93 5 swims

200 Individual Medley SCY 1:57.50 1 swim

400 Individual Medley SCY 4:04.69 7 swims

50 Freestyle LCM 26.50 1 swim

100 Freestyle LCM 56.25 1 swim

200 Freestyle LCM 1:53.67 5 swims

400 Freestyle LCM 3:59.67 13 swims

800 Freestyle LCM 8:19.59 3 swims

1500 Freestyle LCM 16:10.41 4 swims

200 Backstroke LCM 2:15.12 3 swims

100 Butterfly LCM 1:03.00 1 swim

200 Butterfly LCM 2:11.93 4 swims

200 Individual Medley LCM 2:17.46 1 swim

400 Individual Medley LCM 4:38.91 10 swims