Mason Kajfosz

Mage 19COMTMWUTHRA

463 plausible swims · 80 meets · 2017-09-30 → 2024-07-27

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 21.24 2022-03-27 2022 4C Speedo Sectionals - Austin venue
100 Freestyle SCY 45.30 2022-03-24 2022 4C Speedo Sectionals - Austin venue
200 Freestyle SCY 1:39.76 2023-03-24 2023 Four Corners Speedo Sectionals - Austin venue
500 Freestyle SCY 4:44.68 2021-12-04 2021 Dixie Stampede Winter Champs venue
1000 Freestyle SCY 10:33.89 2022-01-22 2022 CO HRA IntraSquad Distance Palooza slow pool
1650 Freestyle SCY 17:51.97 2021-01-17 2021 CO HRA Distance Palooza slow pool
50 Backstroke SCY 26.87 2022-11-19 2022 CO HRA SBL Turkey Trot slow pool
100 Backstroke SCY 52.15 2021-12-03 2021 Dixie Stampede Winter Champs venue
200 Backstroke SCY 1:55.27 2022-02-20 2022 CO AP Colorado Senior Meet venue
50 Breaststroke SCY 33.82 2018-10-19 2018 CO Scary FAST Open venue
100 Breaststroke SCY 57.69 2023-01-14 2023 CO CUDA Classic venue
200 Breaststroke SCY 2:07.78 2021-11-07 2021 CO TOPS Denver Invitational venue
50 Butterfly SCY 24.00 2022-09-17 2022 CO LOVE vs HRA Dual venue
100 Butterfly SCY 48.91 2023-03-25 2023 Four Corners Speedo Sectionals - Austin venue
200 Butterfly SCY 1:50.79 2023-03-23 2023 Four Corners Speedo Sectionals - Austin venue
100 Individual Medley SCY 53.97 2022-09-17 2022 CO LOVE vs HRA Dual venue
200 Individual Medley SCY 1:49.97 2023-03-26 2023 Four Corners Speedo Sectionals - Austin venue
400 Individual Medley SCY 3:56.91 2022-03-25 2022 4C Speedo Sectionals - Austin venue
50 Freestyle LCM 24.78 2022-06-17 2022 CO CSI Long Course Open venue
100 Freestyle LCM 53.02 2024-06-28 2024 CO Zone 2 - U venue
200 Freestyle LCM 1:56.41 2024-07-24 2024 Futures Championships - Austin venue
400 Freestyle LCM 5:03.63 2018-07-06 2018 CO Zone 2 Senior Division venue
50 Backstroke LCM 32.51 2019-04-07 2019 CO HRA Suburban League Pentathlon slow pool
100 Backstroke LCM 1:03.71 2022-06-18 2022 CO CSI Long Course Open venue
200 Backstroke LCM 2:27.90 2019-07-21 2019 CO CSI Senior LC State Championships venue
50 Breaststroke LCM 36.64 2019-04-07 2019 CO HRA Suburban League Pentathlon slow pool
100 Breaststroke LCM 1:09.33 2022-06-25 2022 CO ACES Summer Invitational venue
200 Breaststroke LCM 2:44.43 2021-05-02 2021 CO Steve Drozda LC Shotgun venue
50 Butterfly LCM 26.90 2023-06-14 2023 CO HRA Sprint Eliminator venue
100 Butterfly LCM 55.82 2024-07-24 2024 Futures Championships - Austin
200 Butterfly LCM 2:08.72 2022-01-01 2022 USA Swimming Futures Championships
200 Individual Medley LCM 2:08.69 2022-01-01 2022 USA Swimming Futures Championships
400 Individual Medley LCM 4:40.17 2022-01-01 2022 USA Swimming Futures Championships

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 23.72 flat 200 Free Relay 2019-12-07 2019 CO CSI Pioneer Open
100 Freestyle SCY 52.06 flat 400 Free Relay 2019-02-24 2019 CO CSI 14&U SC State Championships
50 Backstroke SCY 27.14 flat 200 Medley Relay 2019-12-06 2019 CO CSI Pioneer Open
100 Backstroke SCY 1:00.77 flat 400 Medley Relay 2019-02-23 2019 CO CSI 14&U SC State Championships
100 Butterfly SCY 50.17 flying 400 Medley Relay (leg 3) 2021-12-09 2021 West Speedo Winter Juniors
100 Freestyle LCM 1:03.93 flying 400 Medley Relay (leg 4) 2018-04-21 2018 CO FAST vs CUDA vs HRA Tri Meet
200 Freestyle LCM 1:56.30 flat 800 Free Relay 2024-07-25 2024 Futures Championships - Austin

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 45.30 RT 0.71s

22.02
23.28

Front half 22.02s · back half 23.28s

200 Freestyle SCY 1:39.76

23.43
25.52
25.47
25.34

Front half 48.95s · back half 50.81s

500 Freestyle SCY 4:44.68

25.12
27.91
28.69
28.98
29.04
29.48
29.41
29.11
28.66
28.28

Front half 139.74s · back half 144.94s

100 Backstroke SCY 52.15

25.54
26.61

Front half 25.54s · back half 26.61s

200 Backstroke SCY 1:55.27

27.37
28.86
29.60
29.44

Front half 56.23s · back half 59.04s

100 Breaststroke SCY 57.69

27.37
30.32

Front half 27.37s · back half 30.32s

200 Breaststroke SCY 2:07.78

29.06
32.79
33.16
32.77

Front half 61.85s · back half 65.93s

100 Butterfly SCY 48.91

22.95
25.96

Front half 22.95s · back half 25.96s

200 Butterfly SCY 1:50.79

24.93
28.26
28.64
28.96

Front half 53.19s · back half 57.60s

100 Individual Medley SCY 53.97

26.02
27.95

Front half 26.02s · back half 27.95s

200 Individual Medley SCY 1:49.97

23.64
28.33
31.86
26.14

Front half 51.97s · back half 58.00s

400 Individual Medley SCY 3:56.91 RT 0.74s

25.08
28.76
31.02
31.60
32.94
34.55
26.99
25.97

Front half 116.46s · back half 120.45s

100 Freestyle LCM 53.02

25.49
27.53

Front half 25.49s · back half 27.53s

200 Freestyle LCM 1:56.41

27.09
29.55
30.08
29.69

Front half 56.64s · back half 59.77s

400 Freestyle LCM 5:03.63

72.41
79.17
79.85
72.20

Front half 151.58s · back half 152.05s

100 Backstroke LCM 1:03.71

30.85
32.86

Front half 30.85s · back half 32.86s

200 Backstroke LCM 2:27.90

34.56
38.33
38.33
36.68

Front half 72.89s · back half 75.01s

100 Breaststroke LCM 1:09.33

32.69
36.64

Front half 32.69s · back half 36.64s

200 Breaststroke LCM 2:44.43

38.48
41.68
42.98
41.29

Front half 80.16s · back half 84.27s

Reaction time

fastest 0.71s average 0.753s slowest 0.79s 7 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.

50 Freestyle SCY 21.24 24 swims
100 Freestyle SCY 45.30 42 swims
200 Freestyle SCY 1:39.76 31 swims
500 Freestyle SCY 4:44.68 8 swims
1000 Freestyle SCY 10:33.89 1 swim
1650 Freestyle SCY 17:51.97 3 swims
50 Backstroke SCY 26.87 5 swims
100 Backstroke SCY 52.15 28 swims
200 Backstroke SCY 1:55.27 17 swims
50 Breaststroke SCY 33.82 6 swims
100 Breaststroke SCY 57.69 26 swims
200 Breaststroke SCY 2:07.78 12 swims
50 Butterfly SCY 24.00 8 swims
100 Butterfly SCY 48.91 37 swims
200 Butterfly SCY 1:50.79 18 swims
100 Individual Medley SCY 53.97 9 swims
200 Individual Medley SCY 1:49.97 36 swims
400 Individual Medley SCY 3:56.91 16 swims
50 Freestyle LCM 24.78 13 swims
100 Freestyle LCM 53.02 19 swims
200 Freestyle LCM 1:56.41 11 swims
400 Freestyle LCM 5:03.63 2 swims
50 Backstroke LCM 32.51 4 swims
100 Backstroke LCM 1:03.71 10 swims
200 Backstroke LCM 2:27.90 4 swims
50 Breaststroke LCM 36.64 4 swims
100 Breaststroke LCM 1:09.33 12 swims
200 Breaststroke LCM 2:44.43 7 swims
50 Butterfly LCM 26.90 6 swims
100 Butterfly LCM 55.82 17 swims
200 Butterfly LCM 2:08.72 8 swims
200 Individual Medley LCM 2:08.69 13 swims
400 Individual Medley LCM 4:40.17 6 swims