How do you sum up this Chicago Bulls-Miami Heat Eastern Conference semifinal series? The Bulls took a 2-0 lead Monday night . . . and then ran out of gas.

Pushing back from their series-opening loss, the Heat moved to a 3-1 lead in the best-of-seven matchup with a stifling 88-65 rout at the United Center.

Game 5 is Wednesday at 7 p.m. at AmericanAirlines Arena.

Even with guard Dwyane Wade hobbling on a sore right knee, an injury that was exacerbated during a second quarter misstep against Bulls forward Jimmy Butler, the Heat had more than enough on a night when the Bulls finally wilted amid the injuries that have left their rotation decimated and their overtaxed remaining players running on fumes.

While Wade went scoreless in the first half on 0-for-5 shooting before coming around to close with six points by going 3 of 10, there was plenty from LeBron James and Chris Bosh to pick up the slack.

James, who had taken a somewhat passive approach early in the series, this time was aggressive from the outset, closing with 27 points, eight assists and seven rebounds.

Bosh, who closed Friday's Game 2 with 20 points and a career-playoff-high 19 rebounds, this time opened 6 of 7 from the field and finished with 14 points on 7-of-10 shooting.

Against a Bulls team again without ailing Kirk Hinrich, Luol Deng and Derrick Rose, that was more than enough, no need in this one for Heat bench theatrics from Norris Cole or Ray Allen, although Cole did beat the third-quarter buzzer with a 3-pointer that pushed the Heat to a 61-42 lead entering the fourth.

With Game 1 revelation Nate Robinson scoreless on 0-for-12 shooting, with Game 3 scoring threat Carlos Boozer 2 of 10 in the first half, and with Butler and Bulls center Joakim Noah clearly on tired legs, there wasn't anything in the way of pushback.