Marshall Hirschman

Mage 17MISCSSTJNUNUN-02WPSC

148 plausible swims · 31 meets · 2024-05-11 → 2026-06-27

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	23.16	A+0.07s to AA	2026-01-31	2026 HS Boys MISCA Meet venue
100 Freestyle	SCY	51.07	A+0.68s to AA	2025-11-02	2025 Holland Fall Invite venue
200 Freestyle	SCY	1:54.92	A+3.73s to AA	2025-11-01	2025 Holland Fall Invite venue
500 Freestyle	SCY	5:27.04	BB+12.15s to A	2024-11-17	2024 GR Gales of November Open Invitational venue
100 Backstroke	SCY	1:01.46	BB+4.17s to A	2025-11-16	2025 GR Gales of November Open Invitational venue
50 Breaststroke	SCY	27.06	AAA+0.07s to AAAA	2026-03-29	2026 SCY ULTRA Championship Meet venue
100 Breaststroke	SCY	58.69	AAA+2.00s to AAAA	2024-10-18	2024 Boo Bash Invitational
200 Breaststroke	SCY	2:12.43	AA+3.34s to AAA	2026-03-28	2026 SCY ULTRA Championship Meet venue
50 Butterfly	SCY	26.65	A+1.06s to AA	2024-10-20	2024 Boo Bash Invitational slow pool
100 Butterfly	SCY	1:02.60	B+1.21s to BB	2025-10-18	2025 WMS Boo Bash slow pool
100 Individual Medley	SCY	55.28		2026-03-28	2026 SCY ULTRA Championship Meet venue
200 Individual Medley	SCY	2:00.38	AA+2.89s to AAA	2026-03-14	MHSAA Boys D3 State Championship 2026 fast pool
400 Individual Medley	SCY	4:43.06	BB+7.07s to A	2025-10-17	2025 WMS Boo Bash slow pool
50 Freestyle	SCM	27.30	BB+0.71s to A	2025-05-10	2025 WMS Spring Splash slow pool
50 Backstroke	SCM	34.88	+0.39s to B	2024-05-11	2024 WMS Spring Splash slow pool
50 Breaststroke	SCM	35.07	BB+0.98s to A	2024-05-11	2024 WMS Spring Splash slow pool
100 Breaststroke	SCM	1:15.90	BB+4.41s to A	2025-05-10	2025 WMS Spring Splash slow pool
50 Butterfly	SCM	32.53	B+0.54s to BB	2024-05-11	2024 WMS Spring Splash slow pool
100 Individual Medley	SCM	1:08.08		2025-05-10	2025 WMS Spring Splash slow pool
50 Freestyle	LCM	26.66	AA+1.17s to AAA	2025-07-26	2025 LC ULTRA Championship Meet venue
100 Freestyle	LCM	58.05	AA+2.46s to AAA	2026-06-07	MLA Big Red Challenge fast pool
200 Freestyle	LCM	2:14.84	BB+1.55s to A	2025-07-12	2025 West Michigan Classic venue
400 Freestyle	LCM	4:55.50	BB+11.21s to A	2026-06-05	MLA Big Red Challenge
800 Freestyle	LCM	10:40.74	B+0.75s to BB	2025-06-15	2025 Freeze or Fry Freestyle Challenge venue
50 Backstroke	LCM	33.36	BB+1.37s to A	2026-05-23	2026 JAWS First Chance Invite slow pool
100 Backstroke	LCM	1:16.10	B+3.01s to BB	2024-06-14	2024 Freeze or Fry
50 Breaststroke	LCM	30.46	AAAA	2025-07-26	2025 LC ULTRA Championship Meet venue
100 Breaststroke	LCM	1:08.84	AAA+2.75s to AAAA	2025-07-25	2025 LC ULTRA Championship Meet venue
200 Breaststroke	LCM	2:37.72	AA+6.73s to AAA	2025-07-26	2025 LC ULTRA Championship Meet venue
50 Butterfly	LCM	28.66	AA+0.97s to AAA	2026-06-26	2026 JAWS Sun & Fun ABC Spectacular & IMX venue
100 Butterfly	LCM	1:13.59	B+3.00s to BB	2025-06-27	2025 CW Eric Namesnik Memorial Open venue
200 Individual Medley	LCM	2:28.63	BB+0.04s to A	2026-05-23	2026 JAWS First Chance Invite slow pool

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
50 Freestyle	SCY	23.86	flat	200 Free Relay	2025-10-19	2025 WMS Boo Bash
50 Freestyle	SCY	23.38	flying	200 Free Relay (leg 2)	2024-11-16	2024 GR Gales of November Open Invitational
50 Breaststroke	SCY	26.58	flying	200 Medley Relay (leg 2)	2026-03-14	MHSAA Boys D3 State Championship 2026
50 Freestyle	LCM	27.20	flat	200 Free Relay	2024-07-28	2024 LCM ULTRA Championship Meet

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

2721 points (4/6 events — incomplete)

Event	Time	Points
500 FR SCY	5:27.04	577
200 BR SCY	2:12.43	775
200 IM SCY	2:00.38	775
400 IM SCY	4:43.06	594
200 BK SCY	—	0
200 FL SCY	—	0

IMR 17-18 · SCY

3290 points (5/5 events)

Event	Time	Points
200 FR SCY	1:54.92	662
100 BK SCY	1:01.46	503
100 BR SCY	58.69	868
100 FL SCY	1:02.60	482
200 IM SCY	2:00.38	775

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

PR splits

100 Freestyle SCY 51.07

24.25

26.82

Front half 24.25s · back half 26.82s

200 Freestyle SCY 1:54.92

25.86

29.12

30.27

29.67

Front half 54.98s · back half 59.94s

500 Freestyle SCY 5:27.04

29.17

31.68

32.87

33.62

33.32

33.41

33.79

33.50

33.18

32.50

Front half 160.66s · back half 166.38s

100 Backstroke SCY 1:01.46 RT 0.64s

29.68

31.78

Front half 29.68s · back half 31.78s

200 Breaststroke SCY 2:12.43

29.50

33.36

34.71

34.86

Front half 62.86s · back half 69.57s

100 Butterfly SCY 1:02.60

28.09

34.51

Front half 28.09s · back half 34.51s

100 Individual Medley SCY 55.28

26.13

29.15

Front half 26.13s · back half 29.15s

200 Individual Medley SCY 2:00.38

25.82

32.60

32.86

29.10

Front half 58.42s · back half 61.96s

400 Individual Medley SCY 4:43.06

28.10

33.72

38.20

39.00

37.82

39.37

34.33

32.52

Front half 139.02s · back half 144.04s

100 Breaststroke SCM 1:15.90

36.07

39.83

Front half 36.07s · back half 39.83s

100 Individual Medley SCM 1:08.08

32.76

35.32

Front half 32.76s · back half 35.32s

100 Freestyle LCM 58.05

27.33

30.72

Front half 27.33s · back half 30.72s

200 Freestyle LCM 2:14.84

30.79

33.93

35.10

35.02

Front half 64.72s · back half 70.12s

800 Freestyle LCM 10:40.74

70.70

77.69

81.07

81.93

82.97

84.66

82.86

78.86

Front half 311.39s · back half 329.35s

100 Breaststroke LCM 1:08.84

31.82

37.02

Front half 31.82s · back half 37.02s

200 Breaststroke LCM 2:37.72

34.27

39.50

41.43

42.52

Front half 73.77s · back half 83.95s

100 Butterfly LCM 1:13.59

32.09

41.50

Front half 32.09s · back half 41.50s

200 Individual Medley LCM 2:28.63

30.57

40.40

42.49

35.17

Front half 70.97s · back half 77.66s

Reaction time

fastest 0.64s average 0.640s slowest 0.64s 1 electronic start

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 23.16 6 swims

100 Freestyle SCY 51.07 3 swims

200 Freestyle SCY 1:54.92 3 swims

500 Freestyle SCY 5:27.04 2 swims

100 Backstroke SCY 1:01.46 2 swims

50 Breaststroke SCY 27.06 5 swims

100 Breaststroke SCY 58.69 14 swims

200 Breaststroke SCY 2:12.43 9 swims

50 Butterfly SCY 26.65 2 swims

100 Butterfly SCY 1:02.60 2 swims

100 Individual Medley SCY 55.28 3 swims

200 Individual Medley SCY 2:00.38 6 swims

400 Individual Medley SCY 4:43.06 3 swims

50 Freestyle SCM 27.30 1 swim

50 Backstroke SCM 34.88 1 swim

50 Breaststroke SCM 35.07 1 swim

100 Breaststroke SCM 1:15.90 1 swim

50 Butterfly SCM 32.53 1 swim

100 Individual Medley SCM 1:08.08 1 swim

50 Freestyle LCM 26.66 9 swims

100 Freestyle LCM 58.05 12 swims

200 Freestyle LCM 2:14.84 4 swims

400 Freestyle LCM 4:55.50 3 swims

800 Freestyle LCM 10:40.74 1 swim

50 Backstroke LCM 33.36 1 swim

100 Backstroke LCM 1:16.10 2 swims

50 Breaststroke LCM 30.46 11 swims

100 Breaststroke LCM 1:08.84 13 swims

200 Breaststroke LCM 2:37.72 9 swims

50 Butterfly LCM 28.66 7 swims

100 Butterfly LCM 1:13.59 1 swim

200 Individual Medley LCM 2:28.63 9 swims