Jonathon Marshall

Mage 19CZFLLEAFIFASTFAST!FAST$FAST*FLORLELEZT

428 plausible swims · 69 meets · 2015-11-07 → 2024-05-25

Personal records

Event	Course	Best	Cut	Date	Meet
25 Freestyle	SCY	14.16		2015-11-07	FAST Fall Break-Out Meet slow pool
50 Freestyle	SCY	20.90	Sectionals ✓+0.51s to Futures	2022-11-20	The 2022 Mark J. Braun Fall Classic venue
100 Freestyle	SCY	45.11	Sectionals ✓+0.72s to Futures	2022-11-19	The 2022 Mark J. Braun Fall Classic venue
200 Freestyle	SCY	1:38.83	Sectionals ✓+1.24s to Futures	2021-02-27	2021 OHIO STATE HIGH SCHOOL - Division I fast pool
500 Freestyle	SCY	4:42.52	Sectionals ✓+16.93s to Futures	2021-03-07	LESI Senior Champs venue
1650 Freestyle	SCY	18:21.21	+76.22s to Sectionals	2019-02-10	2019 Last Chance Meet venue
50 Backstroke	SCY	25.81	+1.32s to Sectionals	2019-02-10	2019 Last Chance Meet venue
100 Backstroke	SCY	47.41	Futures ✓+0.42s to US Open	2021-02-27	2021 OHIO STATE HIGH SCHOOL - Division I fast pool
200 Backstroke	SCY	1:44.75	Futures ✓+1.46s to US Open	2022-11-19	The 2022 Mark J. Braun Fall Classic venue
50 Breaststroke	SCY	36.65	+9.46s to Sectionals	2017-02-26	2017 MRST Regional Age Group Champs venue
100 Breaststroke	SCY	1:01.37	Sectionals ✓+6.38s to Futures	2022-03-06	LESI Senior Champs hosted by FAST fast pool
200 Breaststroke	SCY	2:31.25	+11.76s to Sectionals	2018-10-14	2018 CCS SC Meet venue
25 Butterfly	SCY	15.50		2015-11-07	FAST Fall Break-Out Meet slow pool
50 Butterfly	SCY	37.10	+13.41s to Sectionals	2015-12-06	Shaker Shark Invitational venue
100 Butterfly	SCY	48.08	Futures ✓+1.39s to US Open	2022-03-05	LESI Senior Champs hosted by FAST fast pool
200 Butterfly	SCY	2:05.23	+1.24s to Sectionals	2019-10-12	2019 CCS SC Meet venue
100 Individual Medley	SCY	1:04.92		2017-03-11	Lake Erie Age Group Championship Meet venue
200 Individual Medley	SCY	1:50.72	Sectionals ✓+2.23s to Futures	2022-11-19	The 2022 Mark J. Braun Fall Classic venue
400 Individual Medley	SCY	4:06.07	Sectionals ✓+13.38s to Futures	2021-03-05	LESI Senior Champs venue
50 Freestyle	LCM	24.26	Sectionals ✓+0.47s to Futures	2023-06-25	Holtrey Summer Classic venue
100 Freestyle	LCM	53.03	Sectionals ✓+1.04s to Futures	2021-07-15	2021 Speedo Sectional Meet
200 Freestyle	LCM	1:56.15	Sectionals ✓+2.06s to Futures	2021-07-15	2021 Speedo Sectional Meet
400 Freestyle	LCM	4:27.87	+3.88s to Sectionals	2021-06-18	Holtrey Summer Classic venue
50 Backstroke	LCM	27.57	Sectionals ✓+0.88s to Futures	2020-03-06	LE Senior Championships 2020 fast pool
100 Backstroke	LCM	54.53	Nationals ✓	2024-05-24	Southern Zone South Sectional Championships venue
200 Backstroke	LCM	2:04.20	US Open ✓+2.11s to Nationals	2021-07-15	2021 Speedo Sectional Meet
50 Breaststroke	LCM	36.17	+4.18s to Sectionals	2020-03-06	LE Senior Championships 2020 fast pool
100 Breaststroke	LCM	1:19.22	+3.73s to Sectionals	2021-05-08	2021 TYR Shark LC Spring Kick-off meet venue
200 Breaststroke	LCM	2:49.80	+7.31s to Sectionals	2019-07-21	2019 Lake Erie LC Age Group Championship Meet venue
50 Butterfly	LCM	26.61	Sectionals ✓+1.22s to Futures	2019-08-01	2019 WI Central Zone 14 & U Championship slow pool
100 Butterfly	LCM	55.20	Futures ✓+0.51s to US Open	2024-05-25	Southern Zone South Sectional Championships venue
200 Butterfly	LCM	2:28.82	+5.83s to Sectionals	2019-06-16	2019 Holtrey Summer Classic venue
200 Individual Medley	LCM	2:11.21	Sectionals ✓+3.22s to Futures	2021-06-18	Holtrey Summer Classic venue
400 Individual Medley	LCM	4:57.09	Sectionals ✓+24.00s to Futures	2021-06-19	Holtrey Summer Classic venue

National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.

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	21.20	flat	200 Free Relay	2022-03-05	LESI Senior Champs hosted by FAST
50 Freestyle	SCY	22.91	flying	200 Free Relay (leg 4)	2019-01-27	2019 Andy Kuhl Age Group & Open
100 Freestyle	SCY	45.78	flat	400 Free Relay	2021-02-20	2021 Northeast High School District Div I
100 Freestyle	SCY	45.89	flying	400 Free Relay (leg 2)	2021-03-07	LESI Senior Champs
200 Freestyle	SCY	1:43.08	flying	800 Free Relay (leg 3)	2021-03-05	LESI Senior Champs
50 Backstroke	SCY	25.71	flat	200 Medley Relay	2018-10-28	Stevie Grieshammer High School Preview Meet
100 Backstroke	SCY	49.24	flat	400 Medley Relay	2021-03-06	LESI Senior Champs
100 Breaststroke	SCY	1:15.88	flying	400 Medley Relay (leg 2)	2018-01-13	2018 Jim Scullion Age Group Showdown
50 Butterfly	SCY	21.51	flying	200 Medley Relay (leg 3)	2021-02-27	2021 OHIO STATE HIGH SCHOOL - Division I
100 Butterfly	SCY	50.00	flying	400 Medley Relay (leg 3)	2022-11-20	The 2022 Mark J. Braun Fall Classic
50 Freestyle	LCM	26.85	flying	200 Free Relay (leg 2)	2018-07-27	2018 Lake Erie LC Age Group Championship Meet
100 Freestyle	LCM	52.86	flat	400 Free Relay	2022-07-15	2022 Speedo Summer Sectionals
100 Freestyle	LCM	58.10	flying	400 Free Relay (leg 4)	2019-07-21	2019 Lake Erie LC Age Group Championship Meet
200 Freestyle	LCM	1:57.16	flying	800 Free Relay (leg 3)	2021-07-17	2021 Speedo Sectional Meet
50 Backstroke	LCM	29.77	flat	200 Medley Relay	2018-07-29	2018 Lake Erie LC Age Group Championship Meet
100 Backstroke	LCM	58.69	flat	400 Medley Relay	2021-05-15	Robert F. Busbey Invitational
100 Butterfly	LCM	58.97	flying	400 Medley Relay (leg 3)	2023-05-20	2023 Robert F. Busbey Invitational

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 45.11

21.59

23.52

Front half 21.59s · back half 23.52s

200 Freestyle SCY 1:38.83

22.27

24.86

25.60

26.10

Front half 47.13s · back half 51.70s

500 Freestyle SCY 4:42.52

24.06

26.75

28.09

28.91

28.82

28.83

29.69

29.25

29.89

28.23

Front half 136.63s · back half 145.89s

1650 Freestyle SCY 18:21.21

27.00

31.59

32.42

33.08

32.11

32.26

33.53

32.97

32.96

33.84

33.98

32.65

33.75

34.24

33.63

33.34

34.22

34.05

33.32

34.57

33.86

32.85

34.34

33.50

34.74

34.92

34.89

33.97

34.61

34.15

33.77

31.95

100 Backstroke SCY 47.41

22.85

24.56

Front half 22.85s · back half 24.56s

200 Backstroke SCY 1:44.75

24.14

26.36

26.64

27.61

Front half 50.50s · back half 54.25s

100 Breaststroke SCY 1:01.37

29.45

31.92

Front half 29.45s · back half 31.92s

200 Breaststroke SCY 2:31.25

32.66

39.14

39.91

39.54

Front half 71.80s · back half 79.45s

100 Butterfly SCY 48.08

22.38

25.70

Front half 22.38s · back half 25.70s

200 Butterfly SCY 2:05.23

26.88

31.05

32.85

34.45

Front half 57.93s · back half 67.30s

100 Individual Medley SCY 1:04.92

28.43

36.49

Front half 28.43s · back half 36.49s

200 Individual Medley SCY 1:50.72

23.15

25.89

35.18

26.50

Front half 49.04s · back half 61.68s

400 Individual Medley SCY 4:06.07

24.73

28.57

31.11

30.77

36.65

36.80

28.88

28.56

Front half 115.18s · back half 130.89s

400 Freestyle LCM 4:27.87

30.25

33.44

34.61

34.41

33.66

34.08

33.78

33.64

Front half 132.71s · back half 135.16s

100 Backstroke LCM 54.53 RT 0.74s

26.35

28.18

Front half 26.35s · back half 28.18s

100 Breaststroke LCM 1:19.22

38.10

41.12

Front half 38.10s · back half 41.12s

200 Breaststroke LCM 2:49.80

38.04

43.49

43.90

44.37

Front half 81.53s · back half 88.27s

100 Butterfly LCM 55.20 RT 0.70s

25.67

29.53

Front half 25.67s · back half 29.53s

200 Butterfly LCM 2:28.82

30.15

36.18

39.97

42.52

Front half 66.33s · back half 82.49s

200 Individual Medley LCM 2:11.21

26.68

31.91

42.07

30.55

Front half 58.59s · back half 72.62s

400 Individual Medley LCM 4:57.09

30.29

35.60

38.87

38.54

44.25

34.48

30.81

Front half 143.30s · back half 153.79s

Reaction time

fastest 0.70s average 0.745s slowest 0.83s 4 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 14.16 1 swim

50 Freestyle SCY 20.90 26 swims

100 Freestyle SCY 45.11 30 swims

200 Freestyle SCY 1:38.83 19 swims

500 Freestyle SCY 4:42.52 4 swims

1650 Freestyle SCY 18:21.21 2 swims

50 Backstroke SCY 25.81 3 swims

100 Backstroke SCY 47.41 42 swims

200 Backstroke SCY 1:44.75 25 swims

50 Breaststroke SCY 36.65 2 swims

100 Breaststroke SCY 1:01.37 7 swims

200 Breaststroke SCY 2:31.25 2 swims

25 Butterfly SCY 15.50 1 swim

50 Butterfly SCY 37.10 1 swim

100 Butterfly SCY 48.08 28 swims

200 Butterfly SCY 2:05.23 4 swims

100 Individual Medley SCY 1:04.92 9 swims

200 Individual Medley SCY 1:50.72 20 swims

400 Individual Medley SCY 4:06.07 5 swims

50 Freestyle LCM 24.26 23 swims

100 Freestyle LCM 53.03 27 swims

200 Freestyle LCM 1:56.15 17 swims

400 Freestyle LCM 4:27.87 3 swims

50 Backstroke LCM 27.57 8 swims

100 Backstroke LCM 54.53 30 swims

200 Backstroke LCM 2:04.20 20 swims

50 Breaststroke LCM 36.17 1 swim

100 Breaststroke LCM 1:19.22 5 swims

200 Breaststroke LCM 2:49.80 3 swims

50 Butterfly LCM 26.61 8 swims

100 Butterfly LCM 55.20 25 swims

200 Butterfly LCM 2:28.82 1 swim

200 Individual Medley LCM 2:11.21 19 swims

400 Individual Medley LCM 4:57.09 7 swims