swimMason Kassebaum
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 21.03 | 2015-01-24 | 2015 MW GNST Odd Age Group Meet | |
| 50 Freestyle | SCY | 22.96 | AAAA | 2012-02-17 | 2024 IA IFLY A3Midwest Challenge |
| 100 Freestyle | SCY | 50.34 | AAAA | 2012-02-17 | 2024 IA IFLY A3Midwest Challenge |
| 200 Freestyle | SCY | 2:17.31 | A+0.42s to AA | 2019-03-01 | 2019 MW HLA Midwestern Qualifier 8 & U Final |
| 500 Freestyle | SCY | 5:39.59 | AAA+4.90s to AAAA | 2020-01-18 | 2020 MW Midwest All Stars |
| 50 Backstroke | SCY | 30.61 | AAA+0.42s to AAAA | 2020-01-18 | 2020 MW Midwest All Stars |
| 100 Backstroke | SCY | 54.12 | AAAA | 2012-02-17 | 2024 IA IFLY A3Midwest Challenge |
| 200 Backstroke | SCY | 2:24.92 | AAA+4.23s to AAAA | 2019-03-22 | 2019 MW Midwestern Short Course Championship |
| 25 Breaststroke | SCY | 27.72 | 2015-01-24 | 2015 MW GNST Odd Age Group Meet | |
| 50 Breaststroke | SCY | 34.92 | AAA+0.93s to AAAA | 2020-01-18 | 2020 MW Midwest All Stars |
| 100 Breaststroke | SCY | 1:14.55 | AAA+1.06s to AAAA | 2020-01-18 | 2020 MW Midwest All Stars |
| 200 Breaststroke | SCY | 2:20.65 | AAAA | 2012-02-17 | 2024 IA IFLY A3Midwest Challenge |
| 25 Butterfly | SCY | 31.13 | 2018-04-28 | Omaha NE, Westside HS - 25 yd | |
| 50 Butterfly | SCY | 31.56 | AA+1.07s to AAA | 2019-03-22 | 2019 MW Midwestern Short Course Championship |
| 100 Butterfly | SCY | 1:07.23 | AAA+2.74s to AAAA | 2020-01-18 | 2020 MW Midwest All Stars |
| 100 Individual Medley | SCY | 1:12.50 | A+0.41s to AA | 2017-06-08 | Elkhorn NE Common Ground 25 yd |
| 200 Individual Medley | SCY | 2:04.46 | AAAA | 2012-02-17 | 2024 IA IFLY A3Midwest Challenge |
| 50 Freestyle | LCM | 26.69 | AAAA | 2024-07-26 | 2024 MW Midwestern LC Championship |
| 100 Freestyle | LCM | 59.14 | AAAA | 2024-07-26 | 2024 MW Midwestern LC Championship |
| 50 Backstroke | LCM | 29.50 | AAAA | 2024-07-10 | 2024 MV CZ Region VIII Speedo Summer |
| 100 Backstroke | LCM | 1:03.74 | AAAA | 2024-07-10 | 2024 MV CZ Region VIII Speedo Summer |
| 200 Backstroke | LCM | 2:20.65 | AAAA | 2024-07-26 | 2024 MW Midwestern LC Championship |
| 50 Breaststroke | LCM | 41.54 | AA+0.75s to AAA | 2019-07-25 | 2019 MW Midwestern Long Course Championship |
| 100 Breaststroke | LCM | 1:14.18 | AAAA | 2024-06-20 | 2024 MW LSS Capital City Classic |
| 50 Butterfly | LCM | 34.40 | AA+0.01s to AAA | 2019-06-08 | 2019 MW LSS Lincoln Invite |
| 100 Butterfly | LCM | 1:04.54 | AAAA | 2024-06-20 | 2024 MW LSS Capital City Classic |
| 200 Individual Medley | LCM | 2:23.24 | AAAA | 2024-07-10 | 2024 MV CZ Region VIII Speedo Summer |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
IMX / IMR
IMX 11-12 · SCY
4427 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:39.59 | 798 |
| 100 BK SCY | 54.12 | 1100 |
| 100 BR SCY | 1:14.55 | 751 |
| 100 FL SCY | 1:07.23 | 678 |
| 200 IM SCY | 2:04.46 | 1100 |
IMR 11-12 · LCM
3537 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK LCM | 29.50 | 1100 |
| 50 BR LCM | 41.54 | 655 |
| 50 FL LCM | 34.40 | 682 |
| 200 IM LCM | 2:23.24 | 1100 |
| 200 FR LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 50.34
Front half 24.11s · back half 26.23s
100 Backstroke SCY 54.12
Front half 25.94s · back half 28.18s
200 Breaststroke SCY 2:20.65
Front half 66.94s · back half 73.71s
200 Individual Medley SCY 2:04.46
Front half 57.93s · back half 66.53s
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.