15-18 Boys Yards
Updated 09/01/24
| Event | Name | Club | Time | Year |
| 50 Freestyle | Nate Berry | KVY | 20.21 | 2019 YMCA Nationals |
| 100 Freestyle | James Wells | LRSC | 45.24 | 2009 YMCA Nationals |
| 200 Freestyle | Jason Thomas | CCSC | 1:42.89 | 1999 YMCA Nationals |
| 500 Freestyle | Jason Thomas | CCSC | 4:36.90 | 1999 YMCA Nationals |
| 1000 Freestyle | Jason Thomas | CCSC | 9:37.36 | DEFY Invitational |
| 1650 Freestyle | Jason Thomas | CCSC | 16:45.36 | 1997 YMCA Nationals |
| 100 Butterfly | Nate Samson | LRSC | 48.34 | 2016 YMCA Nationals |
| 200 Butterfly | Won Ho Chang | LRSC | 1:50.79 | 2009 YMCA Nationals |
| 100 Backstroke | James Wells | LRSC | 47.43 | 2009 YMCA Nationals |
| 200 Backstroke | James Wells | LRSC | 1:46.94 | 2009 YMCA Nationals |
| 100 Breaststroke | Colby Prouty | CCSC | 55.15 | 2018 YMCA Nationals |
| 200 Breaststroke | Colby Prouty | CCSC | 2:01.18 | 2018 YMCA Nationals |
| 200 I.M. | Nate Samson | LRSC | 1:50.40 | 2016 YMCA Nationals |
| 400 I.M. | Niall Janney | LRSC | 4:05.32 | 2008 YMCA Nationals |
| 200 Medley Relay | J.Wells,I.Nichols,W.Chang.PJacques | LRSC | 1:32.19 | 2009 YMCA Nationals |
| 400 Medley Relay | J.Wells,I.Nichols,W.Chang.PJacques | LRSC | 3:24.65 | 2009 YMCA Nationals |
| 200 Freestyle Relay | J.Wells,I.Nichols,W.Chang.PJacques | LRSC | 1:24.95 | 2009 YMCA Nationals |
| 400 Freestyle Relay | J.Wells,I.Nichols,W.Chang.PJacques | LRSC | 3:08.62 | 2009 YMCA Nationals |
| 800 Freestyle Relay | J.Wells,I.Nichols,W.Chang.PJacques | LRSC | 7:03.79 | 2009 YMCA Nationals |