swimstats

John Butler

Mage 20CZIAMWSDWIBLSTIA

31 plausible swims · 9 meets · 2016-08-04 → 2026-07-12

Personal records

EventCourseBest CutDateMeet
50 Freestyle LCM 23.52 Futures ✓+0.23s to US Open 2026-07-09 2024 Speedo Grand Chalenge
100 Freestyle LCM 53.28 Sectionals ✓+1.29s to Futures 2024-03-08 2024 USA Swimming Speedo Championship Seriesvenue
200 Freestyle LCM 2:33.16 +29.67s to Sectionals 2016-08-04 2025 Central Zone 14 & Under Championship Mee
400 Freestyle LCM 4:13.70 Sectionals ✓+11.51s to Futures 2024-03-08 2024 USA Swimming Speedo Championship Seriesvenue
800 Freestyle LCM 10:31.23 +80.44s to Sectionals 2018-08-02 2025 Central Zone 14 & Under Championship Meeslow pool
1500 Freestyle LCM 16:35.06 Sectionals ✓+29.97s to Futures 2024-07-25 2024 IA Long Course Championships
50 Backstroke LCM 38.49 +9.80s to Sectionals 2016-08-04 2025 Central Zone 14 & Under Championship Mee
100 Backstroke LCM 1:21.03 +16.64s to Sectionals 2016-08-04 2025 Central Zone 14 & Under Championship Mee
200 Backstroke LCM 2:07.65 Sectionals ✓+0.66s to Futures 2024-03-08 2024 USA Swimming Speedo Championship Seriesvenue
100 Butterfly LCM 1:23.72 +22.23s to Sectionals 2016-08-04 2016 CZ 14 and Under Mega Zone at The NAT

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 LCM 13.90 flying 200 Free Relay (leg 4) 2024-07-28 2024 IA Long Course Championships
100 Freestyle LCM 3:19.67 flying 400 Free Relay (leg 3) 2018-08-02 2025 Central Zone 14 & Under Championship Mee

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

400 Freestyle LCM 4:13.70

58.88
65.47
65.74
63.61

Front half 124.35s · back half 129.35s

800 Freestyle LCM 10:31.23 · 510.0 min after 400 Freestyle

33.08
38.15
38.83
39.60
39.48
40.35
40.17
40.53
40.68
40.44
39.98
40.66
41.07
39.94
40.47
37.80

Front half 310.19s · back half 321.04s

1500 Freestyle LCM 16:35.06 split/total mismatch

34.74
34.79
34.76
34.35
27.98
31.40
33.09
33.37
34.75
34.88
34.46
35.19
33.27
34.45
33.90
33.81
34.54
34.57
34.39
34.37
34.23
33.77
33.68
34.06
33.74
31.42
34.01
33.56
33.04
33.70

200 Backstroke LCM 2:07.65

29.42
31.96
33.13
33.14

Front half 61.38s · back half 66.27s

Reaction time

fastest 0.59s average 0.607s slowest 0.63s 6 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 LCM 23.52 6 swims
100 Freestyle LCM 53.28 4 swims
200 Freestyle LCM 2:33.16 2 swims
400 Freestyle LCM 4:13.70 2 swims
800 Freestyle LCM 10:31.23 2 swims
1500 Freestyle LCM 16:35.06 3 swims
50 Backstroke LCM 38.49 2 swims
100 Backstroke LCM 1:21.03 2 swims
200 Backstroke LCM 2:07.65 6 swims
100 Butterfly LCM 1:23.72 2 swims