WASHINGTON — The Washington Kastles had one streak snapped this season, but they continued another one on Sunday night by winning a third consecutive World TeamTennis championship and fourth in five years with a a 25-12 victory over the Western Conference champion Springfield Lasers.The Kastles set the tone early when Bobby Reynolds defeated Rik de Voest 5-1 in the first set. Washington added a 5-3 victory in women’s doubles and a 5-1 win in men’s doubles to take a comfortable 15-6 lead at intermission. Martina Hingis took over in the final two sets, cruising to a 5-2 victory over Alisa Kleybanova, before joining Leander Paes to beat Andy Roddick and Kleybanova 5-4 in mixed doubles.The Lasers kept former No. 1-ranked Roddick on the bench in singles and started men’s doubles with Jean-Julien Rojer and De Voest. But after falling behind 4-1, Roddick entered the match. However, the Kastles held on to win the set 5-2.The Kastles had their record 34-match winning streak snapped earlier this season by the Texas Wild in Irving. The Kastles have not lost on their home court in three years.The match, which will be televised at 7 p.m. Monday on the Tennis Channel, was delayed two hours be rain.