Michael Marsh

Mage 17ILMIFMC

55 plausible swims · 8 meets · 2024-03-13 → 2026-03-07

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	25.21	BB+1.12s to A	2024-07-13	2024 IL HPAC Summer Regional Championships slow pool
200 Freestyle	SCY	1:47.53	AA+1.14s to AAA	2025-03-07	2025 SC Illinois Senior Championships venue
500 Freestyle	SCY	4:46.96	AAA+11.47s to AAAA	2024-03-13	1466378
1000 Freestyle	SCY	10:02.04	AAA+25.05s to AAAA	2025-03-06	2025 SC Illinois Senior Championships venue
100 Backstroke	SCY	55.41	A+0.52s to AA	2025-03-08	2025 SC Illinois Senior Championships venue
200 Backstroke	SCY	1:56.43	AA+1.64s to AAA	2025-03-09	2025 SC Illinois Senior Championships venue
100 Butterfly	SCY	59.27	BB+2.58s to A	2024-07-13	2024 IL HPAC Summer Regional Championships slow pool
200 Butterfly	SCY	2:05.48	A+3.29s to AA	2025-03-09	2025 SC Illinois Senior Championships venue
200 Individual Medley	SCY	2:01.16	AA+3.67s to AAA	2026-03-07	2026 SC Illinois Senior Championships - copi venue
400 Individual Medley	SCY	4:13.43	AA+0.44s to AAA	2025-03-07	2025 SC Illinois Senior Championships venue
50 Freestyle	LCM	27.02	A+0.33s to AA	2025-06-28	2025 CW Eric Namesnik Memorial Open venue
100 Freestyle	LCM	59.81	A+1.72s to AA	2024-06-30	2024 CW Eric Namesnik Memorial Open venue
200 Freestyle	LCM	2:03.09	AA+0.90s to AAA	2025-08-01	2025 LC Illinois Senior Championships venue
400 Freestyle	LCM	4:15.01	AAA+6.32s to AAAA	2025-08-02	2025 LC Illinois Senior Championships venue
800 Freestyle	LCM	8:52.28	AAA+15.39s to AAAA	2025-07-31	2025 LC Illinois Senior Championships venue
1500 Freestyle	LCM	17:38.78	AA+19.69s to AAA	2024-07-28	2024 LC Illinois Senior Championships venue
100 Backstroke	LCM	1:02.83	AA+0.94s to AAA	2025-08-02	2025 LC Illinois Senior Championships venue
200 Backstroke	LCM	2:16.79	AA+2.00s to AAA	2025-06-29	2025 CW Eric Namesnik Memorial Open venue
100 Butterfly	LCM	1:03.41	A+1.02s to AA	2025-06-27	2025 CW Eric Namesnik Memorial Open venue
200 Butterfly	LCM	2:22.36	A+3.07s to AA	2024-07-28	2024 LC Illinois Senior Championships venue
200 Individual Medley	LCM	2:24.01	A+1.62s to AA	2024-06-30	2024 CW Eric Namesnik Memorial Open venue
400 Individual Medley	LCM	4:50.99	AAA+11.90s to AAAA	2024-07-26	2024 LC Illinois Senior Championships venue

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
100 Freestyle	LCM	53.02	flying	400 Free Relay (leg 4)	2025-08-03	2025 LC Illinois 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 · LCM

3932 points (5/6 events — incomplete)

Event	Time	Points
400 FR LCM	4:15.01	885
200 BK LCM	2:16.79	798
200 FL LCM	2:22.36	681
200 IM LCM	2:24.01	718
400 IM LCM	4:50.99	850
200 BR LCM	—	0

IMR 17-18 · LCM

3008 points (4/5 events — incomplete)

Event	Time	Points
200 FR LCM	2:03.09	808
100 BK LCM	1:02.83	794
100 FL LCM	1:03.41	688
200 IM LCM	2:24.01	718
100 BR LCM	—	0

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

PR splits

200 Freestyle SCY 1:47.53

25.00

27.39

27.89

27.25

Front half 52.39s · back half 55.14s

1000 Freestyle SCY 10:02.04

26.50

29.31

29.49

29.77

29.85

29.35

29.60

29.97

30.25

30.42

30.11

30.53

30.58

30.52

31.38

31.08

31.21

30.87

30.84

30.41

Front half 294.51s · back half 307.53s

100 Backstroke SCY 55.41

27.01

28.40

Front half 27.01s · back half 28.40s

200 Backstroke SCY 1:56.43

27.09

29.14

30.60

29.60

Front half 56.23s · back half 60.20s

100 Butterfly SCY 59.27

27.60

31.67

Front half 27.60s · back half 31.67s

200 Butterfly SCY 2:05.48

27.86

31.60

33.12

32.90

Front half 59.46s · back half 66.02s

200 Individual Medley SCY 2:01.16

25.90

30.16

35.93

29.17

Front half 56.06s · back half 65.10s

400 Individual Medley SCY 4:13.43

27.64

30.20

32.00

31.48

38.15

38.90

27.47

27.59

Front half 121.32s · back half 132.11s

100 Freestyle LCM 59.81

28.40

31.41

Front half 28.40s · back half 31.41s

200 Freestyle LCM 2:03.09

27.74

31.01

31.73

32.61

Front half 58.75s · back half 64.34s

400 Freestyle LCM 4:15.01 RT 0.72s

28.59

31.67

31.88

32.74

32.86

32.83

32.98

31.46

Front half 124.88s · back half 130.13s

800 Freestyle LCM 8:52.28

29.62

32.47

33.34

33.45

33.30

33.76

33.30

33.70

33.77

33.66

33.70

34.04

33.91

33.83

33.87

32.56

Front half 262.94s · back half 269.34s

1500 Freestyle LCM 17:38.78 RT 0.72s

30.87

33.97

34.55

34.75

34.58

35.29

35.04

35.68

35.20

35.72

35.32

35.68

35.48

35.92

35.55

36.52

35.48

35.98

35.63

36.15

35.38

36.05

35.40

35.83

35.39

36.13

35.57

35.63

35.30

34.74

Front half 523.60s · back half 535.18s

100 Backstroke LCM 1:02.83 RT 0.64s

31.01

31.82

Front half 31.01s · back half 31.82s

200 Backstroke LCM 2:16.79

31.76

34.83

35.40

34.80

Front half 66.59s · back half 70.20s

100 Butterfly LCM 1:03.41

30.14

33.27

Front half 30.14s · back half 33.27s

200 Butterfly LCM 2:22.36 RT 0.71s

30.66

36.26

37.57

37.87

Front half 66.92s · back half 75.44s

200 Individual Medley LCM 2:24.01

31.37

37.64

42.47

32.53

Front half 69.01s · back half 75.00s

400 Individual Medley LCM 4:50.99 RT 0.73s

30.88

35.45

36.93

36.85

42.53

43.55

32.52

32.28

Front half 140.11s · back half 150.88s

Reaction time

fastest 0.59s average 0.702s slowest 0.80s 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.

50 Freestyle SCY 25.21 1 swim

200 Freestyle SCY 1:47.53 1 swim

500 Freestyle SCY 4:46.96 2 swims

1000 Freestyle SCY 10:02.04 2 swims

100 Backstroke SCY 55.41 2 swims

200 Backstroke SCY 1:56.43 3 swims

100 Butterfly SCY 59.27 1 swim

200 Butterfly SCY 2:05.48 1 swim

200 Individual Medley SCY 2:01.16 2 swims

400 Individual Medley SCY 4:13.43 5 swims

50 Freestyle LCM 27.02 2 swims

100 Freestyle LCM 59.81 1 swim

200 Freestyle LCM 2:03.09 3 swims

400 Freestyle LCM 4:15.01 5 swims

800 Freestyle LCM 8:52.28 4 swims

1500 Freestyle LCM 17:38.78 1 swim

100 Backstroke LCM 1:02.83 3 swims

200 Backstroke LCM 2:16.79 4 swims

100 Butterfly LCM 1:03.41 2 swims

200 Butterfly LCM 2:22.36 2 swims

200 Individual Medley LCM 2:24.01 1 swim

400 Individual Medley LCM 4:50.99 7 swims