DEKALB—Jordan Threloff split a pair of free throws with 15 seconds left in overtime for the games’ final point as seventh-seeded Northern Illinois beat No. 10 seed Bowling Green 54-51 in the first round of the Mid-American Conference tournament on Monday.Jehvon Clarke’s game-tying 3-point attempt was off the mark.Clarke’s trey to end regulation was Bowling Green’s only field goal in the final 4 minutes of the second half. Aaric Armstead made the first of two free throws with 25 seconds left to set up Clarke’s make.Threloff had 13 points and nine rebounds for Northern Illinios (15-16). Armstead finished with 12 points and had four of NIU’ 17 steals.Clarke had 15 points for Bowling Green (12-20) and Richaun Holmes and Cameron Black had 10 apiece. Holmes had 14 rebounds and Black added nine.Northern Illinois plays No. 6 Eastern Michigan on Wednesday in the second round.