swimstats

John Brostowitz

Mage 18CZLEMTSDWISSTYWI

94 plausible swims · 14 meets · 2017-08-03 → 2026-04-03

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 22.24 AA+0.55s to AAA·Sectionals ✓+0.95s to Futures 2024-11-17 2024 Schroeder YMCA Invitevenue
100 Freestyle SCY 48.55 AA+0.86s to AAA·Sectionals ✓+2.16s to Futures 2024-10-13 2024 Greater Milwaukee Openvenue
200 Freestyle SCY 1:45.46 AA+0.07s to AAA·Sectionals ✓+3.87s to Futures 2024-10-11 2024 Greater Milwaukee Openvenue
50 Backstroke SCY 24.18 AAA+0.99s to AAAA·Sectionals ✓+0.49s to Futures 2024-11-23 2024 Fall Western Great Lakes Openvenue
200 Backstroke SCY 1:54.44 AA+0.95s to AAA·Sectionals ✓+1.65s to Futures 2024-11-24 2024 Fall Western Great Lakes Openvenue
50 Breaststroke SCY 26.37 AAAA·Sectionals ✓+0.08s to Futures 2024-11-22 2024 Fall Western Great Lakes Openvenue
100 Breaststroke SCY 56.37 AAA+0.18s to AAAA·Futures ✓+0.88s to Winter JNs 2026-04-03 2026 YMCA Short Course Nationalsvenue
200 Breaststroke SCY 2:01.18 AAAA·Winter JNs ✓+0.79s to Jr Nationals 2026-03-31 2026 YMCA Short Course Nationalsvenue
50 Butterfly SCY 23.07 AAAA·Sectionals ✓+0.18s to Futures 2024-11-22 2024 Fall Western Great Lakes Openvenue
100 Butterfly SCY 52.04 AA+0.45s to AAA·Sectionals ✓+1.45s to Futures 2024-11-23 2024 Fall Western Great Lakes Openvenue
200 Butterfly SCY 1:59.91 AA+4.02s to AAA·Sectionals ✓+6.22s to Futures 2024-10-12 2024 Greater Milwaukee Openvenue
200 Individual Medley SCY 1:52.00 AAA+1.11s to AAAA·Futures ✓+2.41s to Winter JNs 2026-04-02 2026 YMCA Short Course Nationalsvenue
400 Individual Medley SCY 4:02.45 AAA+3.06s to AAAA·Futures ✓+5.96s to Winter JNs 2026-04-01 2026 YMCA Short Course Nationalsvenue
50 Freestyle LCM 25.09 AAA+1.10s to AAAA·Sectionals ✓+0.50s to Futures 2024-07-14 2024 CZ North Section Summer Sectionalsvenue
100 Freestyle LCM 56.25 AA+1.06s to AAA·Sectionals ✓+2.66s to Futures 2024-06-09 Shorewood 2024 Long Course Summer Openvenue
200 Freestyle LCM 2:05.44 AA+4.75s to AAA·+1.95s to Sectionals 2024-05-04 15th Annual Early Birdvenue
50 Backstroke LCM 28.53 AAA+0.54s to AAAA·Sectionals ✓+0.64s to Futures 2022-08-07 2025 Central Zone 14 & Under Championship Meeslow pool
100 Backstroke LCM 1:01.66 AA+0.27s to AAA·Sectionals ✓+1.07s to Futures 2024-07-12 2024 CZ North Section Summer Sectionalsvenue
200 Backstroke LCM 2:14.63 AA+0.84s to AAA·Sectionals ✓+2.74s to Futures 2022-08-04 2025 Central Zone 14 & Under Championship Meeslow pool
50 Breaststroke LCM 32.34 AA+0.15s to AAA·+0.35s to Sectionals 2022-08-06 2025 Central Zone 14 & Under Championship Meeslow pool
100 Breaststroke LCM 1:09.20 AA+0.81s to AAA·Sectionals ✓+1.01s to Futures 2025-05-18 2025 Distance-Sprint Meetvenue
200 Breaststroke LCM 2:27.02 AAA+4.13s to AAAA·Futures ✓+2.93s to Winter JNs 2024-07-11 2024 CZ North Section Summer Sectionalsvenue
50 Butterfly LCM 32.42 B+0.13s to BB·+5.03s to Sectionals 2019-08-01 2019 WI Central Zone 14 & U Championshipslow pool
100 Butterfly LCM 57.23 AAA+0.94s to AAAA·Futures ✓+0.74s to Winter JNs 2024-07-13 2024 CZ North Section Summer Sectionalsvenue
200 Individual Medley LCM 2:12.86 AAA+3.27s to AAAA·Sectionals ✓+0.07s to Futures 2024-07-14 2024 CZ North Section Summer Sectionalsvenue
400 Individual Medley LCM 4:58.84 AA+7.35s to AAA·Sectionals ✓+16.45s to Futures 2021-08-06 2025 Central Zone 14 & Under Championship Meeslow pool

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

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

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 20.84 flying 200 Free Relay (leg 3) 2026-04-01 2026 YMCA Short Course Nationals
100 Freestyle SCY 46.00 flying 400 Free Relay (leg 3) 2026-04-03 2026 YMCA Short Course Nationals
100 Freestyle SCY 45.76 flying 400 Medley Relay (leg 4) 2026-04-02 2026 YMCA Short Course Nationals
200 Freestyle SCY 1:41.13 flying 800 Free Relay (leg 3) 2026-03-30 2026 YMCA Short Course Nationals
50 Breaststroke SCY 25.36 flying 200 Medley Relay (leg 2) 2026-03-31 2026 YMCA Short Course Nationals
50 Butterfly SCY 22.22 flying 200 Medley Relay (leg 3) 2024-11-23 2024 Fall Western Great Lakes Open
50 Freestyle LCM 26.37 flat 200 Free Relay 2022-08-07 2025 Central Zone 14 & Under Championship Mee
50 Freestyle LCM 24.48 flying 200 Free Relay (leg 4) 2025-06-27 2025 LC Western Great Lakes Open
100 Freestyle LCM 57.22 flying 400 Free Relay (leg 4) 2022-08-04 2025 Central Zone 14 & Under Championship Mee
50 Backstroke LCM 32.86 flat 200 Medley Relay 2019-08-02 2019 WI Central Zone 14 & U Championship
100 Backstroke LCM 1:02.38 flat 400 Medley Relay 2022-08-06 2025 Central Zone 14 & Under Championship Mee
100 Breaststroke LCM 1:07.84 flying 400 Medley Relay (leg 2) 2024-07-14 2024 CZ North Section Summer Sectionals
50 Butterfly LCM 25.96 flying 200 Medley Relay (leg 3) 2025-06-28 2025 LC Western Great Lakes Open

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

4523 points (5/6 events — incomplete)

EventTime Points
200 BK SCY 1:54.44 837
200 BR SCY 2:01.18 1012
200 FL SCY 1:59.91 767
200 IM SCY 1:52.00 962
400 IM SCY 4:02.45 945
500 FR SCY— 0

IMR 17-18 · LCM

4287 points (5/5 events)

EventTime Points
200 FR LCM 2:05.44 764
100 BK LCM 1:01.66 840
100 BR LCM 1:09.20 832
100 FL LCM 57.23 936
200 IM LCM 2:12.86 915

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

PR splits

100 Freestyle SCY 48.55

23.26
25.29

Front half 23.26s · back half 25.29s

200 Freestyle SCY 1:45.46

23.68
26.48
27.55
27.75

Front half 50.16s · back half 55.30s

200 Backstroke SCY 1:54.44

26.99
29.14
29.64
28.67

Front half 56.13s · back half 58.31s

100 Breaststroke SCY 56.37 RT 0.70s

26.65
29.72

Front half 26.65s · back half 29.72s

200 Breaststroke SCY 2:01.18 RT 0.69s

27.17
30.23
31.20
32.58

Front half 57.40s · back half 63.78s

100 Butterfly SCY 52.04

24.72
27.32

Front half 24.72s · back half 27.32s

200 Butterfly SCY 1:59.91

25.29
29.94
32.16
32.52

Front half 55.23s · back half 64.68s

200 Individual Medley SCY 1:52.00 RT 0.68s

24.59
29.34
31.59
26.48

Front half 53.93s · back half 58.07s

400 Individual Medley SCY 4:02.45 RT 0.69s

24.51
29.07
31.24
30.46
34.14
34.51
29.91
28.61

Front half 115.28s · back half 127.17s

100 Freestyle LCM 56.25

26.72
29.53

Front half 26.72s · back half 29.53s

200 Freestyle LCM 2:05.44

28.09
31.59
32.73
33.03

Front half 59.68s · back half 65.76s

100 Backstroke LCM 1:01.66 RT 0.66s

29.40
32.26

Front half 29.40s · back half 32.26s

200 Backstroke LCM 2:14.63 · 510.0 min after 400 Freestyle

30.93
34.53
35.53
33.64

Front half 65.46s · back half 69.17s

100 Breaststroke LCM 1:09.20

32.75
36.45

Front half 32.75s · back half 36.45s

200 Breaststroke LCM 2:27.02 RT 0.66s

32.71
37.03
38.41
38.87

Front half 69.74s · back half 77.28s

100 Butterfly LCM 57.23 RT 0.66s

26.33
30.90

Front half 26.33s · back half 30.90s

200 Individual Medley LCM 2:12.86 RT 0.65s

26.87
34.78
39.54
31.67

Front half 61.65s · back half 71.21s

400 Individual Medley LCM 4:58.84

30.75
35.69
38.08
37.82
42.81
44.08
35.58
34.03

Front half 142.34s · back half 156.50s

Reaction time

fastest 0.33s average 0.675s slowest 0.76s 21 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.

Swim history

Every recorded swim, newest first
DateEventCourse TimeAge RoundMeet

Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 22.24 1 swim
100 Freestyle SCY 48.55 1 swim
200 Freestyle SCY 1:45.46 1 swim
50 Backstroke SCY 24.18 3 swims
200 Backstroke SCY 1:54.44 3 swims
50 Breaststroke SCY 26.37 7 swims
100 Breaststroke SCY 56.37 3 swims
200 Breaststroke SCY 2:01.18 7 swims
50 Butterfly SCY 23.07 3 swims
100 Butterfly SCY 52.04 1 swim
200 Butterfly SCY 1:59.91 1 swim
200 Individual Medley SCY 1:52.00 4 swims
400 Individual Medley SCY 4:02.45 2 swims
50 Freestyle LCM 25.09 6 swims
100 Freestyle LCM 56.25 2 swims
200 Freestyle LCM 2:05.44 1 swim
50 Backstroke LCM 28.53 6 swims
100 Backstroke LCM 1:01.66 8 swims
200 Backstroke LCM 2:14.63 4 swims
50 Breaststroke LCM 32.34 3 swims
100 Breaststroke LCM 1:09.20 6 swims
200 Breaststroke LCM 2:27.02 5 swims
50 Butterfly LCM 32.42 3 swims
100 Butterfly LCM 57.23 3 swims
200 Individual Medley LCM 2:12.86 8 swims
400 Individual Medley LCM 4:58.84 1 swim