Greg Thomas started with a perfect game and averaged more than 251 to take the first-round lead Friday in the PBA50 Hamilton Lanes & Entertainment Center Open presented by Columbia 300 in Trenton, N.J. Thomas, whose best PBA50 Tour finish was fourth in last season’s PBA50 South Shore Open, added games of 225, 270, 256, 249, 245 and 215 to his 300 start for a 1,760 total on the Del Ballard 34 lane pattern, which features 28.62 mL of oil and a 1.7-1 main ratio. Hall of Famer and...