2017 Swimming Butterfly 50M Results
| Men 50-54 | |||
| 1 | Stephen Nichols | San Antonio, TX | 28.75 |
| Men 55-59 | |||
| 1 | Jeff Marchant | San Diego, CA | 32.86 |
| 2 | Dan Peterson | Thousand Oaks, CA | 34.23 |
| 3 | Robert Preuit | Dubois, WY | 35.33 |
| 4 | Nathan Harvey | Highland Park, MI | 35.53 |
| 5 | Bruce Moffat | South Jordan, UT | 43.98 |
| Men 60-64 | |||
| 1 | Mark Modjeska | Prescott, AZ | 33.25 |
| 2 | Jonathan Roylance | Anchorage, AK | 35.83 |
| 3 | Glenn DeHekker | Whitefish, MT | 37.13 |
| 4 | Allen Larson | Portland, OR | 38.54 |
| 5 | Gary Abbate | Bridgeport, WV | 43.87 |
| Men 70-74 | |||
| 1 | Dennis Meyring | American Fork, UT | 36.89 |
| 2 | Peter Andersen | San Diego, CA | 40.97 |
| 3 | Yaroslav Novitskiy | Moscow, Russia | 42.96 |
| 4 | John Warnke | St. George, UT | 58.44 |
| Men 75-79 | |||
| 1 | John Bell | West Hollywood, CA | 46.40 |
| Men 80-84 | |||
| 1 | Mark Braly | Davis, CA | 1:39.64 |
| Women 50-54 | |||
| 1 | Kristy McGowan | Boulder, CO | 38.29 |
| 2 | Allison LaField | San Antonio, TX | 48.41 |
| Women 55-59 | |||
| 1 | Susan Ingraham | San Antonio, TX | 34.02 |
| 2 | Karen Rokich | Cincinnati, OH | 41.77 |
| 3 | Mary Ann Cuvilier | St. Albert, AB, Canada | 43.47 |
| 4 | Joanna Harmon | Las Vegas, NV | 53.21 |
| 5 | Stacy Johnson | North Ogden, UT | 1:42.15 |
| Women 60-64 | |||
| 1 | Ann Guins | Galion, OH | 51.01 |
| Women 65-69 | |||
| 1 | Mary C Smith | Ivins, UT | 46.49 |
| 2 | Taj Becker | St George, UT | 51.73 |
| Women 70-74 | |||
| 1 | Daniela Barnea | Palo Alto, CA | 45.28 |
| Women 80-84 | |||
| 1 | Katherine Kronwall | Bayfield, CO | 1:30.51 |