By Tribune Staff MEDICINE HAT - The recordsetting Great Falls Dodgers concluded the regular season in style Sunday afternoon, sweeping a double-header from the recordsetting Medicine Hat Blue Jays. The Dodgers, Pioneer League Northern Division champions, defeated the hapless Blue Jays 2-0 and 10-1. Bill Wengert, Ramon Valdez, Cam Biberdorf and James Wray combined to hurl the first-game shutout. Valdez (41) got the victory, with Wray picking up his fourth save. The Dodgers scored 10 runs in the third inning of the nightcap en route to the easy victory. Jeff Castillo, the third Dodgers pitcher, gained credit for his first win in three decisions this summer. Although the Dodgers fell short in the team's attempt to set new league records for victories and team batting average, the club's pitchers did set a new mark. Great Falls established a new Pioneer League record for team earned-run average (2.93). The old mark of 2.98 was set in 1979 by the Billings Mustangs. Great Falls finished with a team batting average of .319, just .001 short of the Pioneer record of .320, established last season by the Salt Lake City Trappers. The Dodgers also fell just short in team stolen bases, finishing three behind the record with 161, and in victories. Great Falls won 52 and lost just 17, with one rainout, this summer. The 1985 Great Falls club set the Pioneer League mark with a 54-16 record. Great Falls scored one run in the first inning of the opener Sunday to provide the team's pitchers with more than enough support. Shortstop Jose Oferman walked and then stole his Pioneer record 57th base. Oferman later scored on a groundout by Jerry Brooks. In the second game, second baseman Bryan Beals banged out four hits, including two in the third inning, to pace the Dodgers. Beals led off the third with a single and later tripled home two runs as Great Falls scored 10 times in the frame. Eric Karros and Brett Magnusson had two hits each for the Dodgers. Medicine Hat, meanwhile, established a Pioneer League record for futility with the double loss. The Blue Jays finished the season with just 12 wins in 70 games. The record is four games worse than the previous Pioneer mark of 16-54, established in 1983 by the Helena Phillies. Great Falls takes today off before opening the Pioneer's best-of-five series for the league championship Tuesday night in Butte against the Southern Division-winning Copper Kings. Games 1 and 2 will be conducted Tuesday and Wednesday at Montana Tech's Alumni Coliseum. Game 3 will be played Thursday in Great Falls. If necessary, Game 4 Friday and Game 5 Saturday are also set for Legion Park in Great Falls. The Dodgers finished the season with seven hitters batting over .300, led by first baseman Eric Karros (.369, 12 HR, 55 RBIs). Outfielders Jerry Brooks (.344-8-60) and Eric Boddie (.335-4-45) also posted impressive numbers, as did infielder Carr (.335-4-62). The Dodgers pitching staff was led by right-hander Sean Snedeker (8-2 record, 2.20 earned-run average). James Wray (5-2, 2.04), David Dawson (5-2, 2.06) and Jeff Hartsock (7-2, 2.67) also posted impressive numbers. Dodgers finish with flourish