The Washington Kastles Complete their Second Undefeated Season as
the 2012 World Team Tennis Champions!

After winning 30 in a row, the Kastles claim 2nd place for longest streak in sports history!

The first team in WTT's 36 year history to have a perfect 16-0 season!

Kastle Systems owner, Mark Ein, always envisioned professional tennis being played in downtown Washington, DC. In January 2008, Mark purchased the rights to a World Team Tennis (WTT) franchise, the Washington Kastles (named after Kastle Systems), that would just a year later become the 2009 World Team Tennis Champions!  This year, the Kastles became the first team in WTT's 36 year history to win the championship with an UNDEFEATED 16-0 seasion!  The Washington "Kastles Stadium at The Wharf" is located at 800 Water Street, SW Washington, DC 20024.  Led by tennis star Serena Williams, the team travels throughout the WTT season to various cities around the U.S. to compete against other WTT teams.


Kastles tennis is committed to the local DC community through their involvement with children's tennis clubs and organizations and by honoring the armed forces.

Kastle Systems is proud to share the Kastle name with a championship tennis team that the citizens of Washington, DC can call their own.