Illinois extended one Big Ten Conference title run and ended a streak to claim another championship Sunday.   Behind Luke Guthrie's second straight individual title, the Illini won the Big Ten men's golf championship for the fourth consecutive season after holding off Indiana in French Lick, Ind. Meanwhile, the Illinois men's tennis team knocked off top-seeded Ohio State in the title match of the Big Ten Tournament in Evanston to end the Buckeyes' run of six straight league tournament titles.   A senior from Quincy, Guthrie shot 5 under par to win the individual title by four strokes and become the Illini's first back-to-back Big Ten champ since Steve Stricker in 1989.   "When I came in here, it was a dream to have four rings,'' Guthrie said. "We practice for the championship season. This is just the first leg.''   The Illini advance to the NCAA regionals and seek their fifth straight appearance in the NCAA finals.   Illinois headed into the day with a seven-shot lead but trailed Indiana by three strokes with three holes to go. Illinois' Mason Jacobs eagled the par-5 18th by holing a chip, and Thomas Pieters birdied before Guthrie finished with a par on 18. The Illini won by three shots ahead of Indiana. Third-place Northwestern was 11 strokes back.    Seeded third in men's tennis, the Illini rallied from a 3-1 deficit for their first conference tournament title since 2005 with victories at Nos. 5, 6 and 2 singles. Illinois' Roy Kalmanovich knocked off Ohio State's Blaz Rola, ranked sixth nationally, to secure the victory.   Illinois (17-7) snapped the Buckeyes’ 92-match winning streak against Big Ten teams and earned the league's automatic berth into the NCAA Tournament.   "It's been a long time coming,'' said Illinois coach Brad Dancer. "It's humbling to beat that team.''   John Supinie can be reached at Follow him on Twitter @JohnSupinie.