The fifth annual Catamount Classic Lacrosse Tournament will take place Oct. 6 and 7 at Thayer Academy's off-campus playing fields in Braintree. Event proceeds will support genitourinary and women's cancers research and care at Boston's Dana-Farber Cancer Institute. Genitourinary cancers include testicular, prostate, and kidney cancers. Nine Division I women's lacrosse teams will scrimmage starting at 8 a.m. Oct. 6 and 18 men's teams will take the field starting at 8 a.m. Oct. 7. General admission is $10 and free for children five and under. For more information, including on how to get involved, visit www.catamountclassic.com.