Mackenzie Knudsen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.45 | AAA+0.66s to AAAA·Sectionals ✓+0.56s to Futures | 2026-01-31 | 2026 UT Region 9 OBSfast pool |
| 100 Freestyle | SCY | 54.89 | AA+0.80s to AAA·Sectionals ✓+3.00s to Futures | 2026-03-26 | 2026 Four Corner Speedo Sectionals - Carmel -fast pool |
| 200 Freestyle | SCY | 2:05.35 | A+3.06s to AA·+2.96s to Sectionals | 2026-07-03 | Stingrays Last Chance - Jul 2026venue |
| 500 Freestyle | SCY | 5:39.10 | A+9.11s to AA·+9.71s to Sectionals | 2024-12-13 | Stingrays Christmas Chaos - Dec 2024venue |
| 1000 Freestyle | SCY | 13:00.41 | B+8.72s to BB·+96.22s to Sectionals | 2026-01-17 | Stingrays Snowmelt Classic - Jan 2026venue |
| 1650 Freestyle | SCY | 22:18.26 | B+42.17s to BB·+191.57s to Sectionals | 2025-12-13 | Stingrays Christmas Chaosvenue |
| 50 Backstroke | SCY | 28.77 | AA+1.08s to AAA·+2.48s to Futures | 2026 UT Region 9 OBSfast pool | |
| 100 Backstroke | SCY | 1:01.20 | A+0.01s to AA·Sectionals ✓+4.11s to Futures | 2026-03-26 | 2026 Four Corner Speedo Sectionals - Carmel |
| 200 Backstroke | SCY | 2:10.00 | AA+3.01s to AAA·Sectionals ✓+5.81s to Futures | 2026-03-28 | 2026 Four Corner Speedo Sectionals - Carmel -fast pool |
| 50 Breaststroke | SCY | 38.46 | B+0.37s to BB·+8.67s to Futures | 2025-10-25 | Stingrays Spooktacular - Oct 2025venue |
| 100 Breaststroke | SCY | 1:20.83 | B+1.34s to BB·+10.24s to Sectionals | 2024-12-13 | Stingrays Christmas Chaos - Dec 2024venue |
| 200 Breaststroke | SCY | 3:01.17 | B+7.68s to BB·+28.38s to Sectionals | 2024-12-14 | Stingrays Christmas Chaos - Dec 2024venue |
| 50 Butterfly | SCY | 28.35 | AA+0.96s to AAA·+2.66s to Futures | 2025-12-04 | 2025 UT SC Senior Championshipsfast pool |
| 100 Butterfly | SCY | 1:05.59 | BB+2.10s to A·+4.50s to Sectionals | 2024-12-06 | 2024 Utah Swimming SC Senior Championshipfast pool |
| 200 Butterfly | SCY | 2:34.61 | B+1.32s to BB·+18.42s to Sectionals | 2025-10-24 | Stingrays Spooktacular - Oct 2025venue |
| 100 Individual Medley | SCY | 1:07.78 | 2024-12-13 | Stingrays Christmas Chaos - Dec 2024venue | |
| 200 Individual Medley | SCY | 2:19.67 | A+3.18s to AA·+3.18s to Sectionals | 2026-02-28 | WFFM Senior Finale 2026venue |
| 400 Individual Medley | SCY | 5:22.63 | BB+19.14s to A·+31.04s to Sectionals | 2025-10-25 | Stingrays Spooktacular - Oct 2025venue |
| 50 Freestyle | LCM | 28.62 | AA+0.23s to AAA·Sectionals ✓+1.23s to Futures | 2025-07-24 | 2025 RAFC Last Splash Invitationalvenue |
| 100 Freestyle | LCM | 1:04.72 | A+0.43s to AA·+0.33s to Sectionals | 2026-01-01 | Finals - WZ LCM Senior Champs 2026 - copied - 2026-07-28 to 2026-08-01 |
| 200 Freestyle | LCM | 2:21.43 | A+2.24s to AA·+2.44s to Sectionals | 2025-07-26 | 2025 RAFC Last Splash Invitationalvenue |
| 400 Freestyle | LCM | 5:00.84 | A+6.95s to AA·+9.05s to Sectionals | 2026-07-20 | 2026 Utah Swimming LC Senior Championships |
| 800 Freestyle | LCM | 10:56.71 | BB+21.32s to A·+50.72s to Sectionals | 2025-06-29 | John Sullivan Firecracker Invite 2025venue |
| 1500 Freestyle | LCM | 21:02.24 | BB+50.35s to A·+101.15s to Sectionals | 2025-06-27 | John Sullivan Firecracker Invite 2025venue |
| 50 Backstroke | LCM | 33.87 | AA+1.38s to AAA·+2.98s to Futures | 2025-07-25 | 2025 RAFC Last Splash Invitationalvenue |
| 100 Backstroke | LCM | 1:10.89 | AA+2.50s to AAA·Sectionals ✓+4.10s to Futures | 2026-01-01 | Finals - WZ LCM Senior Champs 2026 - copied - 2026-07-28 to 2026-08-01 |
| 200 Backstroke | LCM | 2:34.97 | AA+6.78s to AAA·+1.58s to Sectionals | 2026-01-01 | Finals - WZ LCM Senior Champs 2026 - copied - 2026-07-28 to 2026-08-01 |
| 50 Breaststroke | LCM | 56.84 | +10.55s to B·+22.05s to Futures | 2023-04-28 | 2023 SUSA LC Kickoffvenue |
| 100 Breaststroke | LCM | 1:48.43 | +10.14s to B·+27.44s to Sectionals | 2024-04-27 | 2024 Stingrays LC Kickoffvenue |
| 200 Breaststroke | LCM | 3:37.36 | +4.27s to B·+42.50s to Sectionals | 2025-05-24 | Sizzlin Summer Invite - May 2025venue |
| 50 Butterfly | LCM | 31.64 | AA+1.05s to AAA·+2.15s to Futures | 2026-01-01 | Finals - WZ LCM Senior Champs 2026 - copied - 2026-07-28 to 2026-08-01 |
| 100 Butterfly | LCM | 1:14.80 | BB+2.51s to A·+5.51s to Sectionals | 2025-06-29 | John Sullivan Firecracker Invite 2025venue |
| 200 Butterfly | LCM | 3:13.57 | +7.08s to B·+39.28s to Sectionals | 2025-05-23 | Sizzlin Summer Invite - May 2025venue |
| 200 Individual Medley | LCM | 2:55.55 | BB+11.96s to A·+18.56s to Sectionals | 2026-01-01 | Apr |
| 400 Individual Medley | LCM | 6:31.65 | B+15.76s to BB·+59.16s to Sectionals | 2024-05-24 | Sizzlin Summer Invite - May 2024venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 25.93 | flat | 200 Free Relay | 2025-12-05 | 2025 UT SC Senior Championships |
| 50 Freestyle | SCY | 24.98 | flying | 200 Free Relay (leg 4) | 2026-03-26 | 2026 Four Corner Speedo Sectionals - Carmel - |
| 50 Freestyle | SCY | 20.40 | flying | 200 Medley Relay (leg 4) | 2025-12-06 | 2025 UT SC Senior Championships |
| 100 Freestyle | SCY | 1:02.02 | flat | 400 Free Relay | 2025-10-24 | Stingrays Spooktacular - Oct 2025 |
| 100 Freestyle | SCY | 56.57 | flying | 400 Free Relay (leg 2) | 2025-12-06 | 2025 UT SC Senior Championships |
| 100 Freestyle | SCY | 55.97 | flying | 400 Medley Relay (leg 4) | 2026-03-29 | 2026 Four Corner Speedo Sectionals - Carmel - |
| 50 Backstroke | SCY | 28.91 | flat | 200 Medley Relay | 2026-03-26 | 2026 Four Corner Speedo Sectionals - Carmel - |
| 100 Backstroke | SCY | 1:01.74 | flat | 400 Medley Relay | 2025-12-05 | 2025 UT SC Senior Championships |
| 50 Butterfly | SCY | 31.53 | flying | 200 Medley Relay (leg 3) | 2023-12-01 | 2023-24 Utah Swimming SC Senior Championship |
| 50 Freestyle | LCM | 30.90 | flat | 200 Free Relay | 2025-04-25 | 2025 Stingrays LC Kickoff |
| 50 Freestyle | LCM | 27.83 | flying | 200 Free Relay (leg 2) | 2026-07-30 | Finals - WZ LCM Senior Champs 2026 - copied |
| 100 Freestyle | LCM | 1:03.34 | flying | 400 Free Relay (leg 4) | 2025-07-12 | 2025 Utah Swimming LC Senior Championships |
| 50 Backstroke | LCM | 33.56 | flat | 200 Medley Relay | 2026-07-28 | Finals - WZ LCM Senior Champs 2026 - copied |
| 100 Backstroke | LCM | 1:13.93 | flat | 400 Medley Relay | 2025-07-11 | 2025 Utah Swimming LC Senior Championships |
| 50 Butterfly | LCM | 34.66 | flying | 200 Medley Relay (leg 3) | 2024-07-19 | 2024 LC SR CHAMPS |
| 100 Butterfly | LCM | 1:13.23 | flying | 400 Medley Relay (leg 3) | 2025-07-25 | 2025 RAFC Last Splash Invitational |
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 17-18 · SCY
3598 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:39.10 | 674 |
| 200 BK SCY | 2:10.00 | 768 |
| 200 BR SCY | 3:01.17 | 446 |
| 200 FL SCY | 2:34.61 | 492 |
| 200 IM SCY | 2:19.67 | 677 |
| 400 IM SCY | 5:22.63 | 541 |
IMR 17-18 · SCY
3165 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:05.35 | 682 |
| 100 BK SCY | 1:01.20 | 725 |
| 100 BR SCY | 1:20.83 | 486 |
| 100 FL SCY | 1:05.59 | 595 |
| 200 IM SCY | 2:19.67 | 677 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 54.89
Front half 26.67s · back half 28.22s
200 Freestyle SCY 2:05.35
Front half 61.43s · back half 63.92s
500 Freestyle SCY 5:39.10
Front half 166.78s · back half 172.32s
1000 Freestyle SCY 13:00.41
Front half 385.11s · back half 395.30s
1650 Freestyle SCY 22:18.26
100 Backstroke SCY 1:01.20 split/total mismatch
Front half 29.73s · back half 31.47s
200 Backstroke SCY 2:10.00
Front half 62.94s · back half 67.06s
100 Breaststroke SCY 1:20.83
Front half 37.67s · back half 43.16s
200 Breaststroke SCY 3:01.17
Front half 86.76s · back half 94.41s
100 Butterfly SCY 1:05.59
Front half 30.39s · back half 35.20s
200 Butterfly SCY 2:34.61
Front half 72.89s · back half 81.72s
100 Individual Medley SCY 1:07.78
Front half 30.18s · back half 37.60s
200 Individual Medley SCY 2:19.67
Front half 67.21s · back half 72.46s
400 Individual Medley SCY 5:22.63
Front half 155.38s · back half 167.25s
100 Freestyle LCM 1:04.72
Front half 30.95s · back half 33.77s
200 Freestyle LCM 2:21.43
Front half 68.12s · back half 73.31s
1500 Freestyle LCM 21:02.24
100 Backstroke LCM 1:10.89
Front half 34.26s · back half 36.63s
200 Backstroke LCM 2:34.97
Front half 75.93s · back half 79.04s
100 Breaststroke LCM 1:48.43
Front half 50.66s · back half 57.77s
200 Breaststroke LCM 3:37.36
Front half 103.26s · back half 114.10s
200 Butterfly LCM 3:13.57
Front half 89.06s · back half 104.51s
200 Individual Medley LCM 2:55.55 split/total mismatch
400 Individual Medley LCM 6:31.65
Front half 180.94s · back half 210.71s
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.