100 Butterfly
Time	Person	Year
47.95	Gered Doherty	2000
49.42	Cliff Blaze	1992
49.86	Scott Sherman	1996
49.97	Jeff Lovell	1990
50.24	Tom Augspurger	1987
50.39	Peter Armstrong	2000
50.71	Douglas Brennan	1984
50.75	Reid Evans	2001
50.80	Eric Wiscavage	1979
50.86	Jeremy Hough	1993
50.90	Jason Chechitelli	1993
51.28	Jim Ehrlich	1985
51.40	Mark Backman	2002
51.41	Ben Collins	2002
51.46	Peter Leong	1997
51.49	Scott Ingram	2002
51.67	Syd Wolfe	2002
51.70	Jack Szymanski	1977
51.79	Justin Zaglio	1994
51.91	Tim Womach	1994
51.91	Jack Szymanski	1978
52.00	Mark Swangel	1993
52.21	Russell Perkins	1996