Leif Cox

Mage 14COFLMTJHNJYODA

472 plausible swims · 71 meets · 2018-10-27 → 2026-07-25

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 11.61 2026-01-11 2026 CO NJ Narwhal Invitationalfast pool
50 Freestyle SCY 24.48 AA+0.99s to AAA·+1.29s to Sectionals 2026-02-28 2026 CO CSI SC Age Group Championshipsfast pool
100 Freestyle SCY 53.45 AA+2.26s to AAA·+2.46s to Sectionals 2026-03-14 Mile High Championship Invitationalfast pool
200 Freestyle SCY 1:59.22 A+2.13s to AA·+7.43s to Sectionals 2026-03-28 2026 Southwest Age Group Regionalvenue
500 Freestyle SCY 5:15.11 AA+11.82s to AAA·+12.42s to Sectionals 2026-03-28 2026 Southwest Age Group Regionalvenue
1000 Freestyle SCY 11:54.28 BB+27.29s to A·+80.29s to Sectionals 2025-01-01 2025 CO NJ Pineapple Invite
1650 Freestyle SCY 19:01.45 A+37.96s to AA·+84.56s to Sectionals 2026-03-01 2026 CO CSI SC Age Group Championshipsfast pool
25 Backstroke SCY 40.92 2018-10-27 2018 CO Jeffco 10&U Grand Prix #1slow pool
50 Backstroke SCY 29.29 BB+0.40s to A·+5.60s to Futures 2026-02-14 2026 CO NJ Groundhog Invitefast pool
100 Backstroke SCY 1:01.70 BB+0.51s to A·+6.21s to Sectionals 2026-03-15 Mile High Championship Invitationalfast pool
200 Backstroke SCY 2:14.44 BB+1.45s to A·+13.15s to Sectionals 2026-03-01 2026 CO CSI SC Age Group Championshipsfast pool
25 Breaststroke SCY 39.86 2018-10-27 2018 CO Jeffco 10&U Grand Prix #1slow pool
50 Breaststroke SCY 38.40 B+2.61s to BB·+12.11s to Futures 2024-12-15 2024 CO NJ Narwahl Invitationalfast pool
100 Breaststroke SCY 1:22.60 +2.01s to B·+19.41s to Sectionals 2024-11-17 2024 CO TOPS Fall Invitevenue
200 Breaststroke SCY 2:42.34 BB+12.05s to A·+25.05s to Sectionals 2026-03-15 Mile High Championship Invitationalfast pool
50 Butterfly SCY 27.31 A+0.02s to AA·+4.42s to Futures 2026-02-14 2026 CO NJ Groundhog Invitefast pool
100 Butterfly SCY 1:01.15 BB+0.76s to A·+5.96s to Sectionals 2026-02-15 2026 CO NJ Groundhog Invitefast pool
200 Butterfly SCY 2:24.92 BB+10.43s to A·+21.53s to Sectionals 2025-01-01 2025 CO CSI Pioneer Open
100 Individual Medley SCY 1:08.74 2024-12-15 2024 CO NJ Narwahl Invitationalfast pool
200 Individual Medley SCY 2:16.37 BB+0.98s to A·+12.38s to Sectionals 2026-03-30 2026 Southwest Age Group Regionalvenue
400 Individual Medley SCY 4:54.28 BB+4.79s to A·+29.59s to Sectionals 2026-02-28 2026 CO CSI SC Age Group Championshipsfast pool
50 Freestyle LCM 26.81 AAA+1.12s to AAAA·Sectionals ✓+2.22s to Futures 2026-07-22 2026 RAFC Last Splash Invitationalvenue
100 Freestyle LCM 59.22 AA+0.23s to AAA·+0.23s to Sectionals 2026-07-25 2026 RAFC Last Splash Invitationalvenue
200 Freestyle LCM 2:11.20 AA+2.31s to AAA·+2.51s to Sectionals 2026-07-24 2026 RAFC Last Splash Invitationalvenue
400 Freestyle LCM 4:41.92 AA+6.93s to AAA·+7.53s to Sectionals 2026-07-23 2026 RAFC Last Splash Invitationalvenue
800 Freestyle LCM 9:17.33 AAA+13.64s to AAAA·Sectionals ✓+36.64s to Futures 2025-07-10 2025 CO CSI Open Water Championshipsvenue
1500 Freestyle LCM 19:52.15 A+49.26s to AA·+101.06s to Sectionals 2026-06-07 2026 CO NJ Summer Solstice Invitefast pool
50 Backstroke LCM 34.09 BB+0.20s to A·+6.20s to Futures 2026-07-23 2026 RAFC Last Splash Invitationalvenue
100 Backstroke LCM 1:10.99 A+2.30s to AA·+5.80s to Sectionals 2026-07-22 2026 RAFC Last Splash Invitationalvenue
200 Backstroke LCM 2:33.22 A+3.73s to AA·+11.73s to Sectionals 2026-06-12 2026 CO CSI Long Course Openfast pool
50 Breaststroke LCM 40.90 BB+3.11s to A·+10.01s to Futures 2026-04-11 2026 CO TOPS SBL Pentathlon 13&Ovenue
100 Breaststroke LCM 1:34.91 +0.92s to B·+21.21s to Sectionals 2025-06-08 2025 CO NJ Summer Solstice Invitationalfast pool
200 Breaststroke LCM 3:15.65 B+6.26s to BB·+34.77s to Sectionals 2025-06-27 2025 CO Zone 2 VMAC Meetvenue
50 Butterfly LCM 29.88 AA+0.59s to AAA·+3.59s to Futures 2026-07-25 2026 RAFC Last Splash Invitationalvenue
100 Butterfly LCM 1:09.13 BB+0.24s to A·+6.04s to Sectionals 2026-06-12 2026 CO CSI Long Course Openfast pool
200 Butterfly LCM 2:41.50 BB+7.11s to A·+20.41s to Sectionals 2026-06-06 2026 CO NJ Summer Solstice Invitefast pool
200 Individual Medley LCM 2:39.38 BB+2.49s to A·+14.69s to Sectionals 2025-07-27 2025 RAFC Last Splash Invitationalvenue
400 Individual Medley LCM 5:48.32 BB+12.83s to A·+40.53s to Sectionals 2026-06-06 2026 CO NJ Summer Solstice Invitefast pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.

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 24.91 flat 200 Free Relay 2026-03-29 2026 Southwest Age Group Regional
50 Freestyle SCY 27.73 flying 200 Medley Relay (leg 4) 2024-02-24 2024 CO CSI SCY Age Group Championships
50 Freestyle SCY 23.75 flying 200 Free Relay (leg 4) 2026-03-14 Mile High Championship Invitational
100 Freestyle SCY 54.41 flat 400 Free Relay 2026-03-30 2026 Southwest Age Group Regional
100 Freestyle SCY 52.60 flying 400 Medley Relay (leg 4) 2026-03-28 2026 Southwest Age Group Regional
100 Freestyle SCY 53.86 flying 400 Free Relay (leg 4) 2026-03-01 2026 CO CSI SC Age Group Championships
50 Backstroke SCY 29.15 flat 200 Medley Relay 2026-03-15 Mile High Championship Invitational
100 Backstroke SCY 1:08.87 flat 400 Medley Relay 2025-03-21 Southwest Age Group Regional 2025
50 Butterfly SCY 30.58 flying 200 Medley Relay (leg 3) 2024-12-15 2024 CO NJ Narwahl Invitational
100 Butterfly SCY 1:00.06 flying 400 Medley Relay (leg 3) 2026-02-28 2026 CO CSI SC Age Group Championships
50 Freestyle LCM 28.61 flat 200 Free Relay 2026-06-07 2026 CO NJ Summer Solstice Invite
50 Freestyle LCM 25.90 flying 200 Free Relay (leg 4) 2026-07-23 2026 RAFC Last Splash Invitational
50 Freestyle LCM 29.92 flying 200 Medley Relay (leg 4) 2025-07-12 2025 CO NJ Firecracker Invite
100 Freestyle LCM 59.61 flying 400 Free Relay (leg 4) 2026-07-22 2026 RAFC Last Splash Invitational
100 Freestyle LCM 59.52 flying 400 Medley Relay (leg 4) 2026-07-23 2026 RAFC Last Splash Invitational
50 Breaststroke LCM 47.64 flying 200 Medley Relay (leg 2) 2024-07-27 2024 CO CSI LC Age Group 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 13-14 · LCM

3781 points (6/6 events)

EventTime Points
400 FR LCM 4:41.92 796
200 BK LCM 2:33.22 703
200 BR LCM 3:15.65 469
200 FL LCM 2:41.50 581
200 IM LCM 2:39.38 637
400 IM LCM 5:48.32 595

IMR 13-14 · LCM

3220 points (5/5 events)

EventTime Points
200 FR LCM 2:11.20 823
100 BK LCM 1:10.99 691
100 BR LCM 1:34.91 406
100 FL LCM 1:09.13 663
200 IM LCM 2:39.38 637

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

PR splits

100 Freestyle SCY 53.45

25.27
28.18

Front half 25.27s · back half 28.18s

200 Freestyle SCY 1:59.22

26.79
30.12
31.34
30.97

Front half 56.91s · back half 62.31s

500 Freestyle SCY 5:15.11

28.10
30.82
31.49
31.82
32.23
32.27
32.31
32.43
32.48
31.16

Front half 154.46s · back half 160.65s

1650 Freestyle SCY 19:01.45

29.07
33.49
34.24
34.79
35.39
35.23
34.84
35.07
35.02
35.03
34.90
34.84
34.99
34.90
35.11
34.64
34.49
34.57
34.38
34.24
34.17
34.59
34.71
34.93
34.51
35.10
35.20
35.41
35.59
35.04
35.55
34.10
33.32

100 Backstroke SCY 1:01.70

30.16
31.54

Front half 30.16s · back half 31.54s

200 Backstroke SCY 2:14.44

31.12
34.38
35.01
33.93

Front half 65.50s · back half 68.94s

100 Breaststroke SCY 1:22.60

38.85
43.75

Front half 38.85s · back half 43.75s

200 Breaststroke SCY 2:42.34

35.81
41.55
42.75
42.23

Front half 77.36s · back half 84.98s

100 Butterfly SCY 1:01.15

28.49
32.66

Front half 28.49s · back half 32.66s

100 Individual Medley SCY 1:08.74

30.99
37.75

Front half 30.99s · back half 37.75s

200 Individual Medley SCY 2:16.37

29.00
34.94
40.76
31.67

Front half 63.94s · back half 72.43s

400 Individual Medley SCY 4:54.28

29.92
35.07
36.57
37.40
43.89
44.94
33.38
33.11

Front half 138.96s · back half 155.32s

100 Freestyle LCM 59.22

28.58
30.64

Front half 28.58s · back half 30.64s

200 Freestyle LCM 2:11.20

30.36
33.21
34.16
33.47

Front half 63.57s · back half 67.63s

400 Freestyle LCM 4:41.92

31.41
34.08
36.08
36.28
36.92
36.54
36.46
34.15

Front half 137.85s · back half 144.07s

1500 Freestyle LCM 19:52.15

33.65
38.20
38.96
39.44
39.75
40.30
40.00
40.42
40.79
40.64
40.40
40.06
40.21
39.78
40.05
39.87
39.90
40.14
40.01
40.26
40.48
40.39
40.42
40.11
40.61
39.86
39.94
39.51
39.81
38.19

Front half 592.65s · back half 599.50s

100 Backstroke LCM 1:10.99

34.93
36.06

Front half 34.93s · back half 36.06s

200 Backstroke LCM 2:33.22

36.70
38.23
39.69
38.60

Front half 74.93s · back half 78.29s

100 Breaststroke LCM 1:34.91

44.48
50.43

Front half 44.48s · back half 50.43s

200 Breaststroke LCM 3:15.65

45.36
51.18
50.22
48.89

Front half 96.54s · back half 99.11s

100 Butterfly LCM 1:09.13

31.82
37.31

Front half 31.82s · back half 37.31s

200 Butterfly LCM 2:41.50

34.79
40.04
42.86
43.81

Front half 74.83s · back half 86.67s

200 Individual Medley LCM 2:39.38

32.57
41.18
49.02
36.61

Front half 73.75s · back half 85.63s

400 Individual Medley LCM 5:48.32

34.70
40.82
44.62
43.39
53.18
53.81
39.24
38.56

Front half 163.53s · back half 184.79s

Reaction time

fastest 0.67s average 0.670s slowest 0.67s 1 electronic start

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 11.61 5 swims
50 Freestyle SCY 24.48 35 swims
100 Freestyle SCY 53.45 28 swims
200 Freestyle SCY 1:59.22 22 swims
500 Freestyle SCY 5:15.11 15 swims
1000 Freestyle SCY 11:54.28 1 swim
1650 Freestyle SCY 19:01.45 2 swims
25 Backstroke SCY 40.92 1 swim
50 Backstroke SCY 29.29 16 swims
100 Backstroke SCY 1:01.70 21 swims
200 Backstroke SCY 2:14.44 9 swims
25 Breaststroke SCY 39.86 1 swim
50 Breaststroke SCY 38.40 18 swims
100 Breaststroke SCY 1:22.60 8 swims
200 Breaststroke SCY 2:42.34 3 swims
50 Butterfly SCY 27.31 22 swims
100 Butterfly SCY 1:01.15 14 swims
200 Butterfly SCY 2:24.92 7 swims
100 Individual Medley SCY 1:08.74 17 swims
200 Individual Medley SCY 2:16.37 12 swims
400 Individual Medley SCY 4:54.28 3 swims
50 Freestyle LCM 26.81 25 swims
100 Freestyle LCM 59.22 25 swims
200 Freestyle LCM 2:11.20 17 swims
400 Freestyle LCM 4:41.92 13 swims
800 Freestyle LCM 9:17.33 3 swims
1500 Freestyle LCM 19:52.15 1 swim
50 Backstroke LCM 34.09 13 swims
100 Backstroke LCM 1:10.99 23 swims
200 Backstroke LCM 2:33.22 12 swims
50 Breaststroke LCM 40.90 8 swims
100 Breaststroke LCM 1:34.91 3 swims
200 Breaststroke LCM 3:15.65 1 swim
50 Butterfly LCM 29.88 21 swims
100 Butterfly LCM 1:09.13 16 swims
200 Butterfly LCM 2:41.50 7 swims
200 Individual Medley LCM 2:39.38 12 swims
400 Individual Medley LCM 5:48.32 2 swims