
2009-10 Williams Men's Swimming & Diving
| Name | Year | Event | Hometown/High School |
| John Armstrong | 13 | Free, IM | Gladwyne, PA/Friends Central School |
| Henry Blackford | 10 | Sprint Free/Fly | New York, NY/Hotchkiss School |
| Sam Blum | 10 | Free, Back | Westfield, NJ/Pingry School |
| Chris Corbett | 13 | Breast, IM | Highland Heights, OH/Western Reserve Academy |
| Andrew D'Ignazio | 11 | Sprint Free | Wallingford, PA/Strath Haven High |
| Andrew Derosiers | 13 | Breast | Stetson, ME/ |
| Dan Doran | 12 | Back/Free | Wheaton, IL/Wheaton Warrneville South High School |
| Paul Dyrkacz | 13 | Free, Breast, IM | Wilbraham, MA/Minnechaug Regional High School |
| Chris Faux | 13 | Sprint, Free | Atlanta, GA/Westminster School |
| Rob Gearity | 10 | Diving | Beachwood, NJ/Toms River High School South |
| John Guiffre | 12 | Free/Fly | Scotch Plains, NJ/Pingry School |
| Adam Hollander | 10 | Sprint Free/Back | Los Angeles, CA/Milken Community High School |
| Jordan Hollander | 10 | Back/IM | Los Angeles, CA/Milken Community High School |
| Stuart Horgan | 12 | Free/IM/Fly | Hudson, OH/Western Reserve Academy |
| Daeus Jorento | 13 | Breast | Saint Paul, MN/Saint Paul Central High School |
| Edwin Layng | 10 | Sprint Free/Fly | Summit, NJ/Pingry School |
| Alex Long | 12 | Diving | Atlanta, GA/Westminster School |
| Worth MacDonald | 11 | Back | Atlanta, GA/Mercersburg Academy |
| Ryan Marrano | 12 | Free/Fly/IM | Harrison, NY/Iona Prep |
| Zane Martin | 13 | Free | Housatonic, MA/Monument Mountain Regional High School |
| Greg McElroy | 12 | Breast | Wyckoff, NJ/Ramapo High School |
| Christopher Milliken | 10 | Diving | Portland, ME/ |
| Chris Picardo | 13 | Free, Fly | Mercer Island, WA/Mercer Island High School |
| Graham Righi | 13 | Sprint, Free | Phoenix, AZ/Brophy College Prep |
| Gary Roberson | 11 | Mid Distance Free | Tigard, OR/Tualatin High |
| Peter Skipper | 13 | Sprint, Free, Fly | Boston, MA/Boston College High School |
| Austin Stanley | 10 | Breast, Free | Houston, TX/ |
| Scott Symonds | 13 | Free | Denver, CO/George Washington High School |
| David Taylor | 13 | IM, Free, Back | Dallas, TX/St. Mark's School of Texas |
| David Thompson | 11 | Free/Back/Fly | Wellesley, MA/Wellesley High School |
| Philip Treesh | 13 | Free | Darien, CT/Darien High School |
| Tom Vieth | 13 | Free | Louisville, KY/Louisville Collegiate School |
| Ben Wampler | 11 | Sprint Free | Glencoe, IL/New Trier High School |
Head Coach: Steve Kuster
Assistant Coaches: Katelyn Brochu, Dave Polen
Diving Coach: Kit Callahan Koch
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