Kevin Betsy netted the only goal of the game to clinch a 1-0 victory for Wycombe and deny 10-man Bradford on manager Peter Taylor`s return to Adams Park.
The winger bagged the winner with just 10 minutes remaining after the Bantams had see Tommy Doherty go for an early bath having shoved Gareth Ainsworth in the face.
Omar Daley was guilty of squandering three first-half chances for Bradford - who had lost just one of their last five league games.
Stuart Beavon might have broken the deadlock for the hosts midway through the first half but his header was saved by Lenny Pidgeley.
The Chairboys came into the game more in the second half with Ben Strevens going close. Doherty then saw red after a scuffle with veteran Ainsworth and Wycombe made their numerical advantage count.
Bradford stopped playing when Beavon was tripped in their half with the referee`s assistant flagging for a free-kick. However, as City stopped, Matt Bloomfield surged into the penalty area and despite being tripped by Pidgeley, Betsy was on hand to tap in the loose ball.