The United States Bowling Congress announced on Tuesday the addition of the weekend of July 5-7 to the 2013 Open Championships at the National Bowling Stadium in Reno, Nev. There will be a single squad of 36 teams on both Friday, July 5 and Saturday, July 6 and the final day of doubles and singles will be Sunday, July 7, USBC said in this news release. The 2013 USBC Open Championships starts March 1 and runs through June 30 on the original schedule. The USBC Senior Championships are July 1-3...