2021 Swimming Butterfly 100M Results
| MEN | |||
| 50-54 | |||
| 1 | Ronald Scott | Los Angeles, CA | 1:03.12 |
| 55-59 | |||
| 1 | Steven Heaney | Sylvania, OH | 1:22.87 |
| 60-64 | |||
| 1 | Jonathan Riggs | Sylvania, OH | 1:30.24 |
| 2 | Robert Olson | Helper, UT | 1:45.52 |
| 3 | PH Leong | Hurricane, UT | 2:37.85 |
| 65-69 | |||
| 1 | Alexander Romanov | Moscow, Russia | 1:23.54 |
| 2 | Mark Modjeska | Prescott, AZ | 1:26.23 |
| 3 | Gary Abbate | Bridgeport, WV | 1:42.86 |
| 70-74 | |||
| 1 | Gary Fine | Minneapolis, MN | 1:37.83 |
| 2 | John Mccord | Knoxville, TN | 2:07.50 |
| 75-79 | |||
| 1 | Douglas Springer | Tucson, AZ | 1:28.63 |
| 2 | Bob Welty | Dallas, TX | 1:58.24 |
| 90-94 | |||
| 1 | Frank Tanner | Oceanside, CA | 2:35.33 |
| WOMEN | |||
| 55-59 | |||
| 1 | Samantha Martoni | Green Valley, AZ | 1:40.24 |
| 2 | Susan Martin | Anchorage, AK | 1:50.14 |
| 60-64 | |||
| 1 | Susan Ingraham | San Antonio, TX | 1:25.58 |
| 2 | Jacqueline Thorpe | Milford, MI | 1:51.12 |
| 3 | Deborah Pederson | San Antonio, TX | 2:22.86 |
| 65-69 | |||
| 1 | Mary-Chris Kay | Perrysburg, OH | 2:02.34 |
| 2 | Marianne Erickson | Prescott Valley, AZ | 2:09.31 |
| 70-74 | |||
| 1 | Judy Paukert | Ponte Vedra, FL | 2:14.06 |
| 2 | Bertha Bowen | Newdale, ID | 2:51.23 |
| 75-79 | |||
| 1 | Daniela Barnea | Palo Alto, CA | 1:58.74 |