LAS VEGAS — Decatur cowboy and Brazil native Silvano Alves believed his conservative strategy would reap a record third consecutive title at the 20th Professional Bull Riders World Finals.But challenger J.B. Mauney was unexpectedly flawless.In Round 1 Alves turned in a sluggish 73.75 and chose not to take a re-ride, betting that if he didn’t fall the rest of the way, he could narrowly defeat Mauney.But Mauney stayed on all six of his bulls and won the average. Alves fell in Round 4 on Saturday but stayed on five bulls overall.Based on regular-season points and Sunday’s final tally at the Thomas & Mack Center, Mauney edged Alves for the world title, 15,695.50 to 14,717.75.Throughout the Finals’ five-day run, Mauney handled the pressure of staying on for the 8-second count, ride after ride.“I kept it simple and had fun,” Mauney said. For the 5-foot-10, 140-pound Mauney, the world title ended a long trip. He was the 2006 PBR Rookie of the Year, won a coveted World Finals event title in 2009 and then set his sights on world buckle.Iteluded him until this year, when he won six out of the last 10 PBR tour stops. Mauney, 26, who lives in Mooresville, N.C., finished the year with $1,810,710. He said one reason he won the world title was because he stayed more rested and healthy.“I got really hard-headed in past years,” Mauney said. “They say bull riders are supposed to be tough. So, I wouldn’t take a break.”Mauney won the Calgary Stampede bull riding title in July. A month later, he clinched the title at the PBR’s tour stop in Tulsa after a stunning final-round score of 95.25 aboard Bushwacker, the 2011 and the 2013 World Champion Bull.The Tulsa tour stop was the first top-tier show after a three-month hiatus. Mauney entered the Aug. 16-17 Tulsa show ranked No. 10 in the PBR Ford Series world standings.But during the past two months, he has been on a furious rally.“During the time I was off, I forgot about bull riding and came back with a new attitude,” Mauney said.Two weeks after winning the Tulsa show, many North Texas bull riding fans saw Mauney win the PBR Built Ford Tough Series Tour stop in Thackerville, Okla., after turning in a final-round score of 91.5 at the WinStar World Casino.Mauney won the final tour stop in Hollywood, Fla., earlier this month to move within striking distance of Alves’ 538.5 points to set up the dramatic finish in Las Vegas.