swimstats

Jonathan Kern

Mage 15CZEZMRNCNJVAWINJNJBSCAR

170 plausible swims · 24 meets · 2020-01-04 → 2026-07-12

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 16.69 2020-01-04 2020 MR NDAC Winter Festival Meet
50 Freestyle SCY 22.45 AAA+0.76s to AAAA·Sectionals ✓+1.16s to Futures 2025-03-20 2025 NJS & Scarlet Gold Championship
100 Freestyle SCY 48.72 AAA+1.23s to AAAA·Sectionals ✓+2.33s to Futures 2025-03-20 2025 NJS & Scarlet Gold Championship
200 Freestyle SCY 1:45.05 AAA+1.26s to AAAA·Sectionals ✓+3.46s to Futures 2026-03-27 2026 EZ North Speedo Short Course Sectionalsvenue
500 Freestyle SCY 5:26.90 BB+4.31s to A·+34.01s to Sectionals 2024-01-19 2024 MR NYS/VAC January Blitz Invitational
1000 Freestyle SCY 10:12.06 AAA+24.27s to AAAA·+3.57s to Sectionals 2025-03-20 2025 NJS & Scarlet Gold Championship
25 Backstroke SCY 18.21 2020-01-04 2020 MR NDAC Winter Festival Meet
50 Backstroke SCY 23.98 AAAA·Sectionals ✓+0.29s to Futures 2026-03-27 2026 EZ North Speedo Short Course Sectionalsvenue
100 Backstroke SCY 51.46 AAAA·Futures ✓+2.27s to Winter JNs 2026-03-28 2026 EZ North Speedo Short Course Sectionalsvenue
200 Backstroke SCY 1:52.39 AAAA·Futures ✓+4.60s to Winter JNs 2026-03-29 2026 EZ North Speedo Short Course Sectionalsvenue
100 Breaststroke SCY 1:07.72 BB+0.33s to A·+4.13s to Sectionals 2023-01-01 Metropolitan Swimming Club
200 Breaststroke SCY 2:39.36 B+0.17s to BB·+20.77s to Sectionals 2024-01-19 2024 MR NYS/VAC January Blitz Invitational
50 Butterfly SCY 35.51 +3.12s to B·+11.82s to Sectionals 2021-07-09 2021 MR NYSA July SCY Time Trial
100 Butterfly SCY 54.46 AA+0.47s to AAA·+0.47s to Sectionals 2025-03-20 2025 NJS & Scarlet Gold Championship
200 Butterfly SCY 1:59.37 AAA+3.88s to AAAA·Sectionals ✓+5.68s to Futures 2025-11-16 2025 NC SwimMAC November LC SC Invitationalvenue
100 Individual Medley SCY 59.92 2024-01-27 2024 MR HAWKS Trials And Finals
200 Individual Medley SCY 1:59.78 AAA+4.09s to AAAA·Sectionals ✓+5.89s to Futures 2025-01-24 2025 MR HAWKS Trials And Finals Invitational
50 Freestyle SCM 28.54 BB+1.25s to A 2023-05-12 2023 MR NYS Spring Frenzy Invitationalvenue
100 Freestyle SCM 1:01.84 BB+1.85s to A 2023-05-13 2023 MR NYS Spring Frenzy Invitationalvenue
200 Freestyle SCM 2:13.64 BB+2.65s to A 2023-05-12 2023 MR NYS Spring Frenzy Invitationalvenue
100 Backstroke SCM 1:10.45 BB+4.66s to A 2023-05-13 2023 MR NYS Spring Frenzy Invitationalvenue
100 Butterfly SCM 1:08.81 BB+3.72s to A 2023-05-12 2023 MR NYS Spring Frenzy Invitationalvenue
200 Butterfly SCM 2:31.37 BB+5.58s to A 2023-05-13 2023 MR NYS Spring Frenzy Invitationalvenue
50 Freestyle LCM 25.64 AAA+0.65s to AAAA·Sectionals ✓+1.05s to Futures 2025-08-09 2025 EZ LC Age Group Championshipvenue
100 Freestyle LCM 55.55 AAA+1.06s to AAAA·Sectionals ✓+1.96s to Futures 2025-08-06 2025 EZ LC Age Group Championshipvenue
200 Freestyle LCM 1:59.93 AAAA·Sectionals ✓+2.14s to Futures 2026-07-09 2024 Speedo Grand Chalenge
400 Freestyle LCM 4:24.06 AAA+8.47s to AAAA·+1.87s to Sectionals 2025-11-16 2025 NC SwimMAC November LC SC Invitationalvenue
800 Freestyle LCM 10:16.14 BB+12.25s to A·+65.35s to Sectionals 2023-06-16 2023 MR NYS June Jubilee Invitational
50 Backstroke LCM 27.80 AAAA·Futures ✓+1.11s to Jr Nationals 2026-07-09 2024 Speedo Grand Chalenge
100 Backstroke LCM 59.53 AAAA·Futures ✓+0.74s to Winter JNs 2026-07-09 2024 Speedo Grand Chalenge
200 Backstroke LCM 2:07.71 AAAA·Winter JNs ✓+0.72s to Jr Nationals 2026-07-09 2024 Speedo Grand Chalenge
100 Butterfly LCM 1:03.00 AA+1.31s to AAA·+1.51s to Sectionals 2024-08-08 2024 EZ LC Age Group Championshipvenue
200 Butterfly LCM 2:13.72 AAA+1.93s to AAAA·Sectionals ✓+3.53s to Futures 2026-07-09 2024 Speedo Grand Chalenge
200 Individual Medley LCM 2:18.40 AAA+4.31s to AAAA·Sectionals ✓+5.61s to Futures 2025-08-06 2025 EZ LC Age Group Championshipvenue
400 Individual Medley LCM 5:01.02 AAA+12.83s to AAAA·Sectionals ✓+18.63s to Futures 2025-08-07 2025 EZ LC Age Group Championshipvenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

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.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 22.85 flat 200 Free Relay 2025-03-30 2025 EZ North Speedo Short Course Sectionals
50 Freestyle SCY 22.55 flying 200 Free Relay (leg 4) 2025-04-04 2025 Eastern Zone SC Age Group Championships
200 Freestyle SCY 1:49.45 flying 800 Free Relay (leg 3) 2025-03-28 2025 EZ North Speedo Short Course Sectionals
50 Backstroke SCY 24.23 flat 200 Medley Relay 2026-03-28 2026 EZ North Speedo Short Course Sectionals
100 Backstroke SCY 55.37 flat 400 Medley Relay 2025-03-30 2025 EZ North Speedo Short Course Sectionals
50 Butterfly SCY 24.26 flying 200 Medley Relay (leg 3) 2025-03-29 2025 EZ North Speedo Short Course Sectionals
50 Freestyle LCM 25.44 flat 200 Free Relay 2025-08-06 2025 EZ LC Age Group Championship
50 Freestyle LCM 25.63 flying 200 Medley Relay (leg 4) 2024-08-10 2024 EZ LC Age Group Championship
100 Freestyle LCM 55.92 flat 400 Free Relay 2025-08-08 2025 EZ LC Age Group Championship
100 Freestyle LCM 56.67 flying 400 Medley Relay (leg 4) 2024-08-08 2024 EZ LC Age Group Championship
50 Backstroke LCM 29.53 flat 200 Medley Relay 2025-08-09 2025 EZ LC Age Group Championship
100 Backstroke LCM 1:00.09 flat 400 Medley Relay 2026-07-12 2026 CENTRAL ZONE NORTH SUMMER 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 15-16 · LCM

4465 points (5/6 events — incomplete)

EventTime Points
400 FR LCM 4:24.06 854
200 BK LCM 2:07.71 1035
200 FL LCM 2:13.72 893
200 IM LCM 2:18.40 869
400 IM LCM 5:01.02 814
200 BR LCM— 0

IMR 15-16 · SCY

4123 points (5/5 events)

EventTime Points
200 FR SCY 1:45.05 915
100 BK SCY 51.46 955
100 BR SCY 1:07.72 618
100 FL SCY 54.46 792
200 IM SCY 1:59.78 843

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

PR splits

200 Freestyle SCY 1:45.05

24.59
26.44
26.94
27.08

Front half 51.03s · back half 54.02s

500 Freestyle SCY 5:26.90 split/total mismatch

26.78
56.45
86.51
117.30
148.54
179.48
211.13
242.42
29.47
61.95
95.01
128.80
162.35
196.25
230.10
263.39
274.00
305.74
336.83
368.26
295.38
326.90
399.96
431.18
462.64
495.00

100 Backstroke SCY 51.46 RT 0.50s

25.05
26.41

Front half 25.05s · back half 26.41s

200 Backstroke SCY 1:52.39 RT 0.52s

26.89
28.65
28.52
28.33

Front half 55.54s · back half 56.85s

100 Breaststroke SCY 1:07.72

30.64
64.34
99.11
132.18
32.25
67.72

200 Breaststroke SCY 2:39.36

41.59
84.33
36.79
77.37
118.79
159.36

200 Butterfly SCY 1:59.37

26.70
30.01
31.06
31.60

Front half 56.71s · back half 62.66s

200 Individual Medley SCY 1:59.78

25.57
30.46
35.94
27.81

Front half 56.03s · back half 63.75s

100 Freestyle SCM 1:01.84

29.53
32.31

Front half 29.53s · back half 32.31s

200 Freestyle SCM 2:13.64

30.56
34.52
34.78
33.78

Front half 65.08s · back half 68.56s

100 Backstroke SCM 1:10.45

33.85
36.60

Front half 33.85s · back half 36.60s

100 Butterfly SCM 1:08.81

31.97
36.84

Front half 31.97s · back half 36.84s

200 Butterfly SCM 2:31.37

33.18
37.65
39.63
40.91

Front half 70.83s · back half 80.54s

100 Freestyle LCM 55.55

26.70
28.85

Front half 26.70s · back half 28.85s

200 Freestyle LCM 1:59.93 split/total mismatch

27.68
2.23
1.13
0.26

Front half 29.91s · back half 90.02s

400 Freestyle LCM 4:24.06

30.51
33.38
33.84
34.02
33.78
33.56
33.08
31.89

Front half 131.75s · back half 132.31s

100 Backstroke LCM 59.53 RT 0.55ssplit/total mismatch

28.80
1.93

Front half 28.80s · back half 30.73s

200 Backstroke LCM 2:07.71 RT 0.56ssplit/total mismatch

30.40
31.82
32.83
32.66

100 Butterfly LCM 1:03.00

29.54
33.46

Front half 29.54s · back half 33.46s

200 Butterfly LCM 2:13.72 split/total mismatch

30.06
3.74
0.51
1.24

Front half 33.80s · back half 99.92s

200 Individual Medley LCM 2:18.40

29.49
35.10
41.76
32.05

Front half 64.59s · back half 73.81s

400 Individual Medley LCM 5:01.02

31.17
35.42
38.62
38.24
46.02
45.87
34.32
31.36

Front half 143.45s · back half 157.57s

Reaction time

fastest 0.39s average 0.541s slowest 0.62s 18 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.

25 Freestyle SCY 16.69 1 swim
50 Freestyle SCY 22.45 13 swims
100 Freestyle SCY 48.72 13 swims
200 Freestyle SCY 1:45.05 7 swims
500 Freestyle SCY 5:26.90 2 swims
1000 Freestyle SCY 10:12.06 2 swims
25 Backstroke SCY 18.21 1 swim
50 Backstroke SCY 23.98 6 swims
100 Backstroke SCY 51.46 15 swims
200 Backstroke SCY 1:52.39 9 swims
100 Breaststroke SCY 1:07.72 2 swims
200 Breaststroke SCY 2:39.36 1 swim
50 Butterfly SCY 35.51 3 swims
100 Butterfly SCY 54.46 8 swims
200 Butterfly SCY 1:59.37 5 swims
100 Individual Medley SCY 59.92 4 swims
200 Individual Medley SCY 1:59.78 7 swims
50 Freestyle SCM 28.54 1 swim
100 Freestyle SCM 1:01.84 1 swim
200 Freestyle SCM 2:13.64 1 swim
100 Backstroke SCM 1:10.45 1 swim
100 Butterfly SCM 1:08.81 1 swim
200 Butterfly SCM 2:31.37 1 swim
50 Freestyle LCM 25.64 6 swims
100 Freestyle LCM 55.55 4 swims
200 Freestyle LCM 1:59.93 7 swims
400 Freestyle LCM 4:24.06 3 swims
800 Freestyle LCM 10:16.14 1 swim
50 Backstroke LCM 27.80 4 swims
100 Backstroke LCM 59.53 9 swims
200 Backstroke LCM 2:07.71 11 swims
100 Butterfly LCM 1:03.00 5 swims
200 Butterfly LCM 2:13.72 5 swims
200 Individual Medley LCM 2:18.40 6 swims
400 Individual Medley LCM 5:01.02 2 swims