Triangle Rainbow Bowling League is a GLBT bowling league that is member affiliated with IGBO (igbo.org) and sanctioned by the USBC. They welcome all skill level bowlers who enjoy the sport of bowling and the fellowship that comes with it. Teams consist of four bowlers. TRBL bowls on Wednesdays year round at 7:30pm at AMF Pleasant Valley Lanes. They bowl fall/winter season Sept.-Apr. and summer season May-Aug.