Leif Cox
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 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
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 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)
| Event | Time | 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)
| Event | Time | 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
Front half 25.27s · back half 28.18s
200 Freestyle SCY 1:59.22
Front half 56.91s · back half 62.31s
500 Freestyle SCY 5:15.11
Front half 154.46s · back half 160.65s
1650 Freestyle SCY 19:01.45
100 Backstroke SCY 1:01.70
Front half 30.16s · back half 31.54s
200 Backstroke SCY 2:14.44
Front half 65.50s · back half 68.94s
100 Breaststroke SCY 1:22.60
Front half 38.85s · back half 43.75s
200 Breaststroke SCY 2:42.34
Front half 77.36s · back half 84.98s
100 Butterfly SCY 1:01.15
Front half 28.49s · back half 32.66s
100 Individual Medley SCY 1:08.74
Front half 30.99s · back half 37.75s
200 Individual Medley SCY 2:16.37
Front half 63.94s · back half 72.43s
400 Individual Medley SCY 4:54.28
Front half 138.96s · back half 155.32s
100 Freestyle LCM 59.22
Front half 28.58s · back half 30.64s
200 Freestyle LCM 2:11.20
Front half 63.57s · back half 67.63s
400 Freestyle LCM 4:41.92
Front half 137.85s · back half 144.07s
1500 Freestyle LCM 19:52.15
Front half 592.65s · back half 599.50s
100 Backstroke LCM 1:10.99
Front half 34.93s · back half 36.06s
200 Backstroke LCM 2:33.22
Front half 74.93s · back half 78.29s
100 Breaststroke LCM 1:34.91
Front half 44.48s · back half 50.43s
200 Breaststroke LCM 3:15.65
Front half 96.54s · back half 99.11s
100 Butterfly LCM 1:09.13
Front half 31.82s · back half 37.31s
200 Butterfly LCM 2:41.50
Front half 74.83s · back half 86.67s
200 Individual Medley LCM 2:39.38
Front half 73.75s · back half 85.63s
400 Individual Medley LCM 5:48.32
Front half 163.53s · back half 184.79s
Reaction time
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
| Date | Event | Course | Time | Age | Round | Meet |
|---|
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.