Associated Press - November 5, 2009 11:45 PM ET

LAS VEGAS (AP) - World standings leader Kody Lostroh won the fourth round of the Professional Bull Riders World Finals on Thursday night, scoring 90.25 points on Mission Accomplished to become 1 of only three cowboys to cover all 4 of his bulls.

JB Mauney, second in the world standings, was second in the round with an 89 on Fire Plug. Mauney leads the event standings with 358 points. Mauney and Valdiron de Oliveira - third Thursday after an 88.25 on Copp Hou - are tied for second at 353.5 points.

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