Isaiah Williams racked up 134 yards from scrimmage, a receiving touchdown and a rushing touchdown, and Illinois cruised to a 47-14 win over visiting Northwestern in a Big Ten matchup Saturday afternoon in Champaign, Ill.Brandon Peters completed 14 of 23 passes for 242 yards, one touchdown and one interception for Illinois (5-7, 4-5 Big Ten). Chase Brown had 14 carries for 112 yards and a touchdown as the Fighting Illini beat their in-state rival for the first time since 2014.Evan Hull had 101 rushing yards and a touchdown to lead Northwestern (3-9, 1-8). Ryan Hilinski completed 12 of 23 passes for 123 yards and an interception.Illinois sprinted to a 37-7 lead at the half.The Fighting Illini opened the scoring on an 8-yard rushing touchdown by Daniel Barker with 8:26 to go.Less than three minutes later, Illinois struck again. Peters connected on a 39-yard touchdown pass with Williams, a former signal-caller who switched to wide receiver during the preseason.Brown punched in a 1-yard rushing touchdown to make it 21-0 with 12:50 left in the second quarter.Williams scored on another big play — this time a 21-yard run — to increase Illinois’ lead to 28-0 with 11:22 to go in the half. It was his second rushing touchdown of the season to go along with four receiving touchdowns.