Arctic Cat's Tucker Hibbert won Saturday's Pro Open at ISOC's ERX National Park race, with Polaris' Kody Kamm opening the night's main events with a decisive win the Pro Lite class.The 60- degree temperatures brought the fans out in droves to ERX. Friday's night's sweep by Minnesotans, Ski-Doo's Robbie Malinoski in Pro Open and Ski-Doo's Travis Muller in Pro Lite, was continued by Minnesota local Hibbert on Saturday, with Wisconsin's Kamm breaking up the all-state sweep. Pro Open Saturday Final Tucker Hibbert (Arctic Cat) got back onto a familiar spot in the AMSOIL Championship Snocross Series when the defending Pro Open champ took the win after a thrilling race-long battle with Ross Martin (Polaris) ended when Martin, running in 1st at the time, crashed trying to avoid some lapped riders. Hibbert and Martin's battle put them so far in front of the rest of the pack - current points leader Tim Tremblay (Ski-Doo) included - that Martin was able to restart his sled and re-enter the race in 2nd place.The largest crowd to ever assemble at Elk River's (Minn.) Extreme Motorpark (ERX) witnessed another spectacular high-flying, bar-banging main event as the world's top snowmobile racers contested the ERX National, presented by Heinen Motorsports, round 13 of the 2011-'12 AMSOIL Championship Snocross Series. And topping out on Saturday in the premier Pro Open class was the defending ACSS champion, Arctic Cat's Tucker Hibbert, with Polaris' Kody Kamm opening the night's main events with a decisive win the Pro Lite class.While the 60- degree temperatures brought the fans out in droves to ERX, it did nothing to slow the stock and modified snowmobiles from acclaimed manufacturers Ski-Doo, Polaris and Arctic Cat - the latter two being headquartered in the State of Minnesota. Friday's night's sweep by Minnesotans, Ski-Doo's Robbie Malinoski in Pro Open and Ski-Doo's Travis Muller in Pro Lite, was continued by Minnesota local Hibbert on Saturday, with Wisconsin's Kamm breaking up the all-state sweep."It felt really good to win both qualifiers and the main Saturday night. I've only done that once this year. Other races, I would have good qualifiers and a bad main or bad qualifiers and a good main. To put it all together again feels great," Hibbert said. Pro Light Saturday Final Pro Light points leader Kody Kamm came ripping back with a vengeance after a couple wipeouts on Friday night relegated him outside the top five - and laid the smack down on the rest of the Pro Lite field at ERX on Saturday. Kamm won by nearly five seconds over 2nd place Colby Crapo (Polaris), with Ski-Doo's Derek Ellis placing 3rd - and was the only Pro Lite racer to podium both nights at ERX.Pulling the holeshot was Polaris' Matt Bristow, towing Arctic Cat's Matt Pichner and Crapo through the first turn, while Kamm got out in about 5th. By lap three Kamm had disposed of Crapo and Pichner to move into 2nd, then set up Pichner with a thrilling mid-track triple jump out of a corner - an area where all the other racers were doubling.Midway through the nine-lap contest Friday's winner Travis Muller (Ski-Doo) went down, dashing his chances at a return to the Pro Lite podium. With four laps to go Kamm was in complete control, Crapo holding on strong to 2nd and Bristow in 3rd. Ellis brought the crowd to their feet with a pass on Bristow with two laps to go - which he'd make stick through the checkers. "You know, I got a descent start. The track was super demanding, so I pointed by Ski-Doo in the dirt direction and it ran like a Cadillac," Ellis said.