6/28/08

Reigning world champion Brad Walker led qualifying in Eugene, Oregon, on Friday for the US Olympic Track and Field Trials pole vault final, where he might make his next attack upon Sergey Bubka's world record.

Walker, whose American record clearance of 6.04 metres at the Prefontaine Classic three weeks ago was a 2008 world best, led qualifiers for Sunday's final by clearing 5.60m.