2021 Butterfly Records
| 50 METER BUTTERFLY | ||||
| Men | Name | City/State | Year | Mark |
| 50-54 | Ronald Scott | Los Angeles, CA | 2021 | 27.83 |
| 55-59 | Donald Graham | Seattle, WA | 2013 | 28.44 |
| 60-64 | Donald Graham | Seattle, WA | 2014 | 28.89 |
| 65-69 | Fred Baird | West Jordan, UT | 2013 | 31.21 |
| 70-74 | Steve Heck | Prairieville, LA | 2019 | 32.20 |
| 75-79 | Mike Freshley | Montrose, CA | 2016 | 32.41 |
| 80-84 | Frank Piemme | Lompoc, CA | 2007 | 44.11 |
| 85-89 | Frank Piemme | Lompoc, CA | 2012 | 48.16 |
| 90-94 | Frank Tanner | Oceanside, CA | 2021 | 1:10.44 |
| Women | Name | City/State | Year | Mark |
| 50-54 | Susan Ingraham | San Antonio, TX | 2012 | 33.55 |
| 55-59 | Susan Ingraham | San Antonio, TX | 2014 | 33.74 |
| 60-64 | Susan Ingraham | San Antonio, TX | 2019 | 34.54 |
| 65-69 | Bonnie Pronk | Campbell River, BC, Canada | 2007 | 40.52 |
| 70-74 | Gynt Clifford | Sun City West, AZ | 2009 | 44.45 |
| 75-79 | Daniela Barnea | Palo Alto, CA | 2019 | 45.34 |
| 80-84 | Lois Kivi Nochman | Huntington Woods, MI | 2006 | 1:00.10 |
| 85-89 | Jean Durston | Concord, CA | 1999 | 1:07.35 |
| 90-94 | Charlotte Sanddal | Helena, MT | 2012 | 1:21.95 |
| 95-99 | Charlotte Sanddal | Helena, MT | 2018 | 2:21.86 |
| 100 METER BUTTERFLY | ||||
| Men | Name | City/State | Year | Mark |
| 50-54 | Ronald Scott | Los Angeles, CA | 2021 | 1:03.12 |
| 55-59 | Donald Graham | Los Angeles, CA | 2012 | 1:06.45 |
| 60-64 | Donald Graham | Seattle, WA | 2014 | 1:08.28 |
| 65-69 | Fred Baird | West Jordan, UT | 2013 | 1:10.76 |
| 70-74 | Fred Baird | West Jordan, UT | 2018 | 1:18.29 |
| 75-79 | Douglas Springer | Tucson, AZ | 2021 | 1:28.63 |
| 80-84 | Frank Piemme | Lompoc, CA | 2007 | 1:55.74 |
| 85-89 | Frank Piemme | Lompoc, CA | 2010 | 2:02.66 |
| 90-94 | Frank Tanner | Oceanside, CA | 2021 | 2:35.33 |
| Women | Name | City/State | Year | Mark |
| 50-54 | Susan Ingraham | San Antonio, TX | 2012 | 1:15.44 |
| 55-59 | Susan Ingraham | San Antonio, TX | 2014 | 1:17.20 |
| 60-64 | Susan Ingraham | San Antonio, TX | 2019 | 1:22.65 |
| 65-69 | Bonnie Pronk | Campbell River, BC, Canada | 2007 | 1:35.71 |
| 70-74 | Daniela Barnea | Palo Alto, CA | 2014 | 1:43.25 |
| 75-79 | Daniela Barnea | Palo Alto, CA | 2019 | 1:48.35 |
| 80-84 | Gail Roper | Healdsburg, CA | 2009 | 1:58.33 |
| 85-89 | Jean Durston | Concord, CA | 1999 | 2:36.50 |
| 200 METER BUTTERFLY | ||||
| Men | Name | City/State | Year | Mark |
| 50-54 | Kurt Dickson | Glendale, AZ | 2018 | 2:28.69 |
| 55-59 | Will Reeves | Salt Lake City, UT | 2009 | 2:32.07 |
| 60-64 | Fred Baird | West Jordan, UT | 2012 | 2:50.28 |
| 65-69 | Mark Modjeska | Prescott, AZ | 2018 | 2:47.71 |
| 70-74 | Barry Fasbender | Palo Alto, CA | 2007 | 3:41.51 |
| 75-79 | Douglas Springer | Tucson, AZ | 2021 | 3:13.73 |
| 80-84 | Frank Tanner | Oceanside, CA | 2011 | 4:27.06 |
| 85-89 | Frank Tanner | Oceanside, CA | 2016 | 5:05.95 |
| Women | Name | City/State | Year | Mark |
| 50-54 | Susan Ingraham | San Antonio, TX | 2012 | 2:59.05 |
| 55-59 | Susan Ingraham | San Antonio, TX | 2015 | 3:05.59 |
| 60-64 | Susan Ingraham | San Antonio, TX | 2021 | 3:31.75 |
| 65-69 | Daniela Barnea | Palo Alto, CA | 2011 | 3:43.93 |
| 70-74 | Daniela Barnea | Palo Alto, CA | 2014 | 3:50.35 |
| 75-79 | Mary Ann Case | Sioux Falls, SD | 2016 | 4:29.93 |
| 80-84 | Lois Kivi Nochman | Huntington Woods, MI | 2005 | 4:31.97 |
| 85-89 | Jean Durston | Concord, CA | 1999 | 5:42.80 |
