swimMatthew Mortenson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Backstroke | SCY | 34.31 | AA+0.12s to AAA | 2026-01-01 | Elkhorn NE Common Ground - 25 yd |
| 100 Backstroke | SCY | 1:13.59 | AA+0.80s to AAA | 2026-01-01 | Elkhorn NE Common Ground - 25 yd |
| 100 Breaststroke | SCY | 1:21.68 | AAA+1.99s to AAAA | 2026-01-01 | Elkhorn NE Common Ground - 25 yd |
| 200 Breaststroke | SCY | 2:05.84 | 2021-12-11 | 2021 West Speedo Winter Juniors venue | |
| 100 Butterfly | SCY | 1:15.04 | AA+0.15s to AAA | 2026-01-01 | Elkhorn NE Common Ground - 25 yd |
| 100 Individual Medley | SCY | 1:12.16 | AAA+2.27s to AAAA | 2026-01-01 | Elkhorn NE Common Ground - 25 yd |
| 200 Individual Medley | SCY | 2:35.07 | AAA+4.18s to AAAA | 2026-01-01 | Elkhorn NE Common Ground - 25 yd |
| 400 Individual Medley | SCY | 4:00.23 | 2021-12-10 | 2021 West Speedo Winter Juniors venue | |
| 50 Freestyle | LCM | 29.57 | AAAA | 2019-05-10 | 2019 DSMY May Invitational |
| 100 Freestyle | LCM | 1:13.09 | AAA+3.30s to AAAA | 2015-08-07 | 2015 MN Central Zone 14 & U Championship |
| 800 Freestyle | LCM | 9:19.50 | 2019-08-01 | 2019 ND Central Zone 14 & U Championship | |
| 100 Backstroke | LCM | 1:08.14 | AAAA | 2019-05-10 | 2019 DSMY May Invitational |
| 200 Backstroke | LCM | 2:08.19 | 2024-07-10 | 2024 MV CZ Region VIII Speedo Summer | |
| 50 Breaststroke | LCM | 37.44 | AAAA | 2017-08-03 | 2017 MN Central Zone 14 & U Championship |
| 100 Breaststroke | LCM | 1:05.99 | AAAA | 2024-03-16 | Region VIII Speedo Spring Sectionals venue |
| 200 Breaststroke | LCM | 2:19.94 | 2024-03-14 | Region VIII Speedo Spring Sectionals venue | |
| 200 Individual Medley | LCM | 2:06.71 | AAAA | 2024-03-17 | Region VIII Speedo Spring Sectionals venue |
| 400 Individual Medley | LCM | 4:28.71 | 2025-06-05 | 2025 National Championships venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 22.42 | flying | 200 Free Relay (leg 4) | 2021-12-10 | 2021 West Speedo Winter Juniors |
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 10 & under · SCY
3445 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:13.59 | 823 |
| 100 BR SCY | 1:21.68 | 897 |
| 100 FL SCY | 1:15.04 | 804 |
| 200 IM SCY | 2:35.07 | 921 |
| 200 FR SCY | — | 0 |
IMR 10 & under · LCM
3070 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:13.09 | 870 |
| 50 BR LCM | 37.44 | 1100 |
| 200 IM LCM | 2:06.71 | 1100 |
| 50 BK LCM | — | 0 |
| 50 FL LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Breaststroke SCY 2:05.84
Front half 60.31s · back half 65.53s
400 Individual Medley SCY 4:00.23
Front half 116.09s · back half 124.14s
100 Backstroke LCM 1:08.14 split/total mismatch
Front half 34.66s · back half 33.48s
100 Breaststroke LCM 1:05.99 RT 0.76s
Front half 31.00s · back half 34.99s
200 Breaststroke LCM 2:19.94 RT 0.75s
Front half 66.55s · back half 73.39s
200 Individual Medley LCM 2:06.71 RT 0.73s
Front half 59.43s · back half 67.28s
400 Individual Medley LCM 4:28.71 RT 0.73s
Front half 129.23s · back half 139.48s
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.
Progression
Faster times are higher. One card per event, all courses & history.