Myles Koff

Mage 18EZMAMDMTVAGILNBAC

600 plausible swims · 64 meets · 2016-05-14 → 2026-03-29

Personal records

Event	Course	Best	Cut	Date	Meet
25 Freestyle	SCY	17.49		2016-05-14	GTAC 8-under Aquatic Festival slow pool
50 Freestyle	SCY	23.28	A+0.59s to AA	2024-10-19	2024 NBAC Fall Fastival Meet fast pool
100 Freestyle	SCY	46.03	AAA+0.54s to AAAA	2026-02-19	2026 Speedo MD LSC Senior Champs
200 Freestyle	SCY	1:40.71	AAA+0.12s to AAAA	2025-02-21	2025 Speedo MD LSC Senior Champs venue
500 Freestyle	SCY	4:39.53	AAA+5.94s to AAAA	2024-01-01	2024 nbac thanksgiving meet final results pdf 1
1000 Freestyle	SCY	9:35.46	AAA+0.57s to AAAA	2024-12-12	2024 NBAC 50th Annual Christmas Invitational venue
1650 Freestyle	SCY	16:17.48	AAA+19.29s to AAAA	2024-10-19	2024 NBAC Fall Fastival Meet fast pool
25 Backstroke	SCY	17.53		2017-01-28	2017 Robert J Hogan Memorial Mini Meet
50 Backstroke	SCY	25.23	AA+0.94s to AAA	2025-12-11	2025 NBAC 51st Annual Christmas Invitational venue
100 Backstroke	SCY	53.96	A+0.07s to AA	2024-01-01	2024 nbac thanksgiving meet final results pdf 1
200 Backstroke	SCY	1:55.85	AA+2.36s to AAA	2025-11-14	2025 NBAC Thanksgiving Meet
25 Breaststroke	SCY	22.51		2016-05-14	GTAC 8-under Aquatic Festival slow pool
50 Breaststroke	SCY	28.38	AA+0.39s to AAA	2025-12-11	2025 NBAC 51st Annual Christmas Invitational venue
100 Breaststroke	SCY	59.79	AA+0.90s to AAA	2024-12-13	2024 NBAC 50th Annual Christmas Invitational venue
200 Breaststroke	SCY	2:04.31	AAA+2.12s to AAAA	2026-02-19	2026 Speedo MD LSC Senior Champs
25 Butterfly	SCY	21.39		2016-05-14	GTAC 8-under Aquatic Festival slow pool
50 Butterfly	SCY	24.01	AAA+0.82s to AAAA	2025-12-11	2025 NBAC 51st Annual Christmas Invitational venue
100 Butterfly	SCY	50.32	AAA+1.13s to AAAA	2025-12-12	2025 NBAC 51st Annual Christmas Invitational venue
200 Butterfly	SCY	1:48.56	AAAA	2026-02-19	2026 Speedo MD LSC Senior Champs
100 Individual Medley	SCY	51.32		2026-02-19	2026 Speedo MD LSC Senior Champs
200 Individual Medley	SCY	1:49.42	AAAA	2026-02-19	2026 Speedo MD LSC Senior Champs
400 Individual Medley	SCY	3:55.33	AAAA	2025-02-20	2025 Speedo MD LSC Senior Champs
50 Freestyle	LCM	25.38	AA+0.29s to AAA	2025-01-01	2025 nbac mid summer classic final results pdf
100 Freestyle	LCM	56.74	AA+1.55s to AAA	2023-07-09	2023 NBAC Mid-Summer Classic venue
200 Freestyle	LCM	1:55.51	AAA+0.32s to AAAA	2026-03-27	2026 Speedo Sectional Championship venue
400 Freestyle	LCM	4:15.51	AAA+9.92s to AAAA	2025-01-01	2025 nbac mid summer classic final results pdf
800 Freestyle	LCM	9:07.99	AA+9.20s to AAA	2023-07-06	2023 NBAC Mid-Summer Classic venue
1500 Freestyle	LCM	18:51.28	BB+6.59s to A	2022-06-09	2022 Summer Speedo Spectaculare venue
50 Backstroke	LCM	29.08	AAA+1.09s to AAAA	2025-05-16	2025 NBAC Spring LC Invitational Meet venue
100 Backstroke	LCM	1:01.93	AA+0.54s to AAA	2025-01-01	2025 nbac mid summer classic final results pdf
200 Backstroke	LCM	2:13.86	AA+0.07s to AAA	2025-01-01	2025 nbac mid summer classic final results pdf
50 Breaststroke	LCM	32.19	AAA+1.50s to AAAA	2025-05-16	2025 NBAC Spring LC Invitational Meet
100 Breaststroke	LCM	1:09.95	AA+1.56s to AAA	2025-01-01	2025 nbac mid summer classic final results pdf
200 Breaststroke	LCM	2:31.78	AA+2.09s to AAA	2026-03-28	2026 Speedo Sectional Championship venue
50 Butterfly	LCM	26.84	AAA+0.75s to AAAA	2025-08-02	2025 Speedo Junior National Championships fast pool
100 Butterfly	LCM	1:00.27	AA+1.38s to AAA	2025-05-16	2025 NBAC Spring LC Invitational Meet
200 Butterfly	LCM	2:07.68	AAA+1.79s to AAAA	2026-03-28	2026 Speedo Sectional Championship venue
200 Individual Medley	LCM	2:07.29	AAAA	2025-03-30	2025 Speedo Sectional Championship venue
400 Individual Medley	LCM	4:31.59	AAAA	2025-07-31	2025 Speedo Junior National Championships fast pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.

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
100 Freestyle	SCY	45.99	flying	400 Free Relay (leg 4)	2026-01-31	2026 MIAA A Swimming Championships
50 Butterfly	SCY	22.69	flying	200 Medley Relay (leg 3)	2026-01-31	2026 MIAA A Swimming Championships
50 Freestyle	LCM	24.24	flying	200 Free Relay (leg 3)	2025-07-30	2025 Speedo Junior National Championships
50 Freestyle	LCM	24.38	flying	200 Medley Relay (leg 4)	2025-08-01	2025 Speedo Junior National Championships
100 Freestyle	LCM	52.82	flying	400 Free Relay (leg 2)	2025-08-02	2025 Speedo Junior National Championships
100 Freestyle	LCM	53.03	flying	400 Medley Relay (leg 4)	2025-08-03	2025 Speedo Junior National Championships
200 Freestyle	LCM	1:54.49	flying	800 Free Relay (leg 3)	2025-07-31	2025 Speedo Junior National 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

5770 points (6/6 events)

Event	Time	Points
500 FR SCY	4:39.53	925
200 BK SCY	1:55.85	807
200 BR SCY	2:04.31	938
200 FL SCY	1:48.56	1034
200 IM SCY	1:49.42	1032
400 IM SCY	3:55.33	1034

IMR 17-18 · SCY

4508 points (5/5 events)

Event	Time	Points
200 FR SCY	1:40.71	984
100 BK SCY	53.96	743
100 BR SCY	59.79	821
100 FL SCY	50.32	928
200 IM SCY	1:49.42	1032

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

PR splits

200 Freestyle SCY 1:40.71

23.36

25.17

25.77

26.41

Front half 48.53s · back half 52.18s

500 Freestyle SCY 4:39.53

24.19

26.43

27.46

28.40

28.69

28.33

29.30

28.94

29.06

28.73

Front half 135.17s · back half 144.36s

1000 Freestyle SCY 9:35.46

24.62

26.80

27.50

27.96

28.38

28.52

28.80

28.71

28.91

29.44

29.02

29.26

29.33

29.50

29.60

29.75

29.67

30.08

30.22

29.39

Front half 279.64s · back half 295.82s

1650 Freestyle SCY 16:17.48

25.34

27.53

28.33

28.91

29.23

29.33

29.04

29.03

29.46

29.32

29.13

29.31

29.54

29.81

29.89

29.76

29.65

30.39

30.58

30.01

30.10

30.46

30.66

30.65

30.61

30.50

30.32

30.19

30.52

30.11

30.50

30.30

28.97

100 Backstroke SCY 53.96

26.69

27.27

Front half 26.69s · back half 27.27s

200 Backstroke SCY 1:55.85

27.02

29.17

29.85

29.81

Front half 56.19s · back half 59.66s

100 Breaststroke SCY 59.79

28.20

31.59

Front half 28.20s · back half 31.59s

100 Butterfly SCY 50.32

23.79

26.53

Front half 23.79s · back half 26.53s

100 Freestyle LCM 56.74

27.05

29.69

Front half 27.05s · back half 29.69s

200 Freestyle LCM 1:55.51

26.89

29.44

29.58

29.60

Front half 56.33s · back half 59.18s

400 Freestyle LCM 4:15.51

28.33

30.89

32.00

32.47

32.31

33.06

33.40

33.05

Front half 123.69s · back half 131.82s

800 Freestyle LCM 9:07.99

62.48

68.83

69.96

70.07

70.90

70.02

69.13

66.60

Front half 271.34s · back half 276.65s

1500 Freestyle LCM 18:51.28

31.02

34.66

35.35

36.53

37.65

37.77

38.28

32.99

43.41

38.33

38.34

38.25

38.13

39.22

38.53

38.69

38.80

38.19

38.39

38.14

37.41

38.25

38.63

38.71

38.84

38.12

37.61

37.67

Front half 556.46s · back half 574.82s

100 Backstroke LCM 1:01.93

30.10

31.83

Front half 30.10s · back half 31.83s

200 Backstroke LCM 2:13.86

30.86

34.02

34.63

34.35

Front half 64.88s · back half 68.98s

100 Breaststroke LCM 1:09.95

32.78

37.17

Front half 32.78s · back half 37.17s

200 Breaststroke LCM 2:31.78

33.25

37.89

39.88

40.76

Front half 71.14s · back half 80.64s

100 Butterfly LCM 1:00.27

28.30

31.97

Front half 28.30s · back half 31.97s

200 Butterfly LCM 2:07.68

28.38

31.49

33.32

34.49

Front half 59.87s · back half 67.81s

200 Individual Medley LCM 2:07.29

27.38

32.90

37.35

29.66

Front half 60.28s · back half 67.01s

400 Individual Medley LCM 4:31.59 RT 0.67s

27.64

31.79

35.12

36.67

37.13

39.84

31.77

31.63

Front half 131.22s · back half 140.37s

Reaction time

fastest 0.56s average 0.642s slowest 0.69s 9 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 17.49 2 swims

50 Freestyle SCY 23.28 15 swims

100 Freestyle SCY 46.03 28 swims

200 Freestyle SCY 1:40.71 33 swims

500 Freestyle SCY 4:39.53 21 swims

1000 Freestyle SCY 9:35.46 4 swims

1650 Freestyle SCY 16:17.48 4 swims

25 Backstroke SCY 17.53 2 swims

50 Backstroke SCY 25.23 14 swims

100 Backstroke SCY 53.96 11 swims

200 Backstroke SCY 1:55.85 19 swims

25 Breaststroke SCY 22.51 2 swims

50 Breaststroke SCY 28.38 19 swims

100 Breaststroke SCY 59.79 27 swims

200 Breaststroke SCY 2:04.31 31 swims

25 Butterfly SCY 21.39 1 swim

50 Butterfly SCY 24.01 16 swims

100 Butterfly SCY 50.32 18 swims

200 Butterfly SCY 1:48.56 27 swims

100 Individual Medley SCY 51.32 12 swims

200 Individual Medley SCY 1:49.42 34 swims

400 Individual Medley SCY 3:55.33 27 swims

50 Freestyle LCM 25.38 13 swims

100 Freestyle LCM 56.74 12 swims

200 Freestyle LCM 1:55.51 23 swims

400 Freestyle LCM 4:15.51 9 swims

800 Freestyle LCM 9:07.99 1 swim

1500 Freestyle LCM 18:51.28 1 swim

50 Backstroke LCM 29.08 6 swims

100 Backstroke LCM 1:01.93 19 swims

200 Backstroke LCM 2:13.86 16 swims

50 Breaststroke LCM 32.19 7 swims

100 Breaststroke LCM 1:09.95 21 swims

200 Breaststroke LCM 2:31.78 19 swims

50 Butterfly LCM 26.84 6 swims

100 Butterfly LCM 1:00.27 12 swims

200 Butterfly LCM 2:07.68 21 swims

200 Individual Medley LCM 2:07.29 28 swims

400 Individual Medley LCM 4:31.59 13 swims