Two of the Chicago area's top bowlers lit upthe leaderboard of the USBC Open Championships in the last coupleof days. The tournament, which runs for 154 days to July 24, is beingheld at Cashman Center in Las Vegas. Ron Nelson, long one of the better non-PBA members in thecountry, rolled 669 in team, 795 in doubles and 674 in singles totake over the...