Ellen Marie Estes (born October 13, 1978 in PortlandOregon) is an American water polo player, who won the silver medal at the 2000 Summer Olympics. She also won a bronze medal at the2004 Summer Olympics. Estes scored three goals during the bronze medal game against Australia.

Estes played for Stanford University. She was a senior on the 2002 NCAA National Championship Team; was a two-time All-American; and broke a Stanford scoring record with 93 goals in her sophomore year. She graduated with an Engineering degree at Stanford, and interned for studied roller-coaster design as an intern with Disney.

In 2003, Estes was named the USA Water Polo Female Athlete of the Year.

From 2007-2009, Estes served as a volunteer assistant coach for the Harvard University Men's and Women's Water Polo Teams, while finishing her MBA at Harvard Business School.


  • Olympic Games: Silver Medal (2000), Bronze Medal (2004)
  • World Championships: Gold Medal (2003)
  • Pan American Games: Second Place (1999)
  • FINA World Cup: Second Place (2002)
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