Both men's semi-final matches will take place at the venue, along with the women's final for the first time.
Warrington will face Hull FC in the other men's last-four tie.
All four clubs can concentrate on their league form until then, but all know they are now just one game from a Wembley final.
That's it for our live text coverage - thanks for joining us today.
Halifax 'must enjoy day'
#bbcrl
Jamie Peacock
Former England captain on BBC Two
It is the biggest challenge out there. For Halifax it is about the day out at the semi-final, enjoying it as a player and trying to play your best rugby and score a couple of tries.
I don't think they are going to win that.
BreakingChallenge Cup semi-final draw
#bbcrl
Warrrington v Hull FC
St Helens v Halifax
Draw to come
#bbcrl
So Championship side Halifax join Hull FC, Warrington and St Helens in the hat for the Challenge Cup semi-finals.
The draw is coming up shortly on BBC Two.
Report: Fax stun Bulls to make semis
FT: Bradford 16-20 Halifax
If you are just joining us, Halifax have become the first Championship side to reach the last four of the Challenge Cup since 2006.
Fax came from 6-0 down at half-time to beat Bradford 20-16 at Odsal.
Quote Message: It is a hard way to lose. It was a great contest and we gave it a great shot. It has been a good story for us but now it is back to the run-of-the-mill of the Championship. It came down to missed tackles but you have to credit Halifax as they came with a game-plan. We defended great but just got shaded on possession. from John Kear Bradford coach on BBC Two
It is a hard way to lose. It was a great contest and we gave it a great shot. It has been a good story for us but now it is back to the run-of-the-mill of the Championship. It came down to missed tackles but you have to credit Halifax as they came with a game-plan. We defended great but just got shaded on possession.
Fax 'showed character'
FT: Bradford 16-20 Halifax
Quote Message: It is unbelievable. The 80 minutes was up and down and all over the place but we showed some true character. Credit to the lads, they were brilliant today. We'll enjoy this and the draw will be what it will be. We have another big day to look forward to. from Simon Grix Halifax head coach on BBC Two
It is unbelievable. The 80 minutes was up and down and all over the place but we showed some true character. Credit to the lads, they were brilliant today. We'll enjoy this and the draw will be what it will be. We have another big day to look forward to.
'Dream come true'
FT: Bradford 16-20 Halifax
Quote Message: It is a dream come true. It is what the Challenge Cup is all about. I am elated. I went through and I couldn't believe I got under the sticks. It was a fast game and I only played about 30 minutes. I don't know who we will get but bring it on - anything can happen. from James Woodburn-Hall Halifax player on BBC Two
It is a dream come true. It is what the Challenge Cup is all about. I am elated. I went through and I couldn't believe I got under the sticks. It was a fast game and I only played about 30 minutes. I don't know who we will get but bring it on - anything can happen.
Full time: Halifax through to semi-finals
Bradford 16-20 Halifax
Halifax see it out and reach the last four of the Challenge Cup.
Post update
Bradford 16-20 Halifax
Fax have the ball and are running down the clock. Bolton is drawing nearer....
Post update
Bradford 16-20 Halifax
A break in play as a Bradford player is injured in a tackle.
That gives both sides a chance to catch their breath before one final flurry.
Play will restart on the fifth tackle for Bradford.
Post update
Bradford 16-20 Halifax
Quentin Laulu-Togaga'e picks up a Jordan Lilley kick and runs into space.
Fax have the ball inside the Bulls 20 with two and a half minutes left.
Post update
Bradford 16-20 Halifax
This game has swung one way and then the other in the second half.
Is there one more twist before we find out who claims the last semi-final spot?
TRY: Bradford 16-20 Halifax
James Woodburn-Hall, goal con Tyrer
And Fax do reply!
James Woodburn-Hall set up their last try, but this one is all his own work.
He throws in a dummy then steps on the gas and breaks the Bradford line.
Woodburn-Hall has support but he doesn't need it as he dummies again and goes over. A brilliant solo score.
Steve Tyrer kicks the goal and Halifax are a score ahead heading into the final five.
Post update
Bradford 16-14 Halifax
What response do Halifax have?
Their Challenge Cup dreams are looking like they might be slipping away.
Dalton Grant does well to gather a high Scott Murrell kick in front of his own line on the last Fax tackle.
TRY: Bradford 16-14 Halifax
Matty Wildie, goal con missed
Kevin Larroyer takes the ball into contact, but it spits out under pressure from three Bradford players.
Matty Wildie was the man on hand to take advantage and put Bradford back ahead.
Jordan Lilley cannot add the extras from the left of the sticks.
The rain is making conditions tricky at Odsal.
TRY REVIEW
Bradford 12-14 Halifax
Bradford's Matty Wildie picks up a loose ball after it popped out in a tackle and wins a foot-race to the line.
Have Bradford got the lead again? We're going upstairs for a video review.
Post update
Bradford 12-14 Halifax
Bradford get going again 15 yards from their own line following another kick to touch from Scott Murrell.
The game remains close, with the sides slugging it out.
TRY: Bradford 12-14 Halifax
Scott Grix, goal con Tyrer
This time Fax do find the breakthrough.
A great break and offload from James Woodburn-Hall sets up Quentin Laulu-Togaga'e and he streaks through before setting up Scott Grix for the score.
Steve Tyrer adds the extras from in front of the post and the visitors are back ahead.
Post update
Bradford 12-8 Halifax
Halifax benefit from a scrappy period of play as Scott Murrell's kick is charged down and they regain the ball.
The visitors work their way up to 10 metres of the line but can't find a way through again as Murrell is stopped short.
Brandon Moore knocks on on the last tackle, which lets the Bulls off the hook.
Live Reporting
Robert Stevens
All times stated are UK
Getty ImagesCopyright: Getty Images 
Latest PostBolton calling
#bbcrl
So part-timers Halifax complete the set of Challenge Cup semi-finalists after battling to victory at Bradford this afternoon.
Fax will take on Super League leaders St Helens at the University of Bolton Stadium next month.
The home of Bolton Wanderers FC will host a Challenge Cup triple-header on 27 July
Both men's semi-final matches will take place at the venue, along with the women's final for the first time.
Warrington will face Hull FC in the other men's last-four tie.
All four clubs can concentrate on their league form until then, but all know they are now just one game from a Wembley final.
That's it for our live text coverage - thanks for joining us today.
Halifax 'must enjoy day'
#bbcrl
Jamie Peacock
Former England captain on BBC Two
It is the biggest challenge out there. For Halifax it is about the day out at the semi-final, enjoying it as a player and trying to play your best rugby and score a couple of tries.
I don't think they are going to win that.
BreakingChallenge Cup semi-final draw
#bbcrl
Warrrington v Hull FC
St Helens v Halifax
Draw to come
#bbcrl
So Championship side Halifax join Hull FC, Warrington and St Helens in the hat for the Challenge Cup semi-finals.
The draw is coming up shortly on BBC Two.
Report: Fax stun Bulls to make semis
FT: Bradford 16-20 Halifax
If you are just joining us, Halifax have become the first Championship side to reach the last four of the Challenge Cup since 2006.
Fax came from 6-0 down at half-time to beat Bradford 20-16 at Odsal.
Click here to read the match report.
'Credit to Halifax'
FT: Bradford 16-20 Halifax
Fax 'showed character'
FT: Bradford 16-20 Halifax
'Dream come true'
FT: Bradford 16-20 Halifax
Full time: Halifax through to semi-finals
Bradford 16-20 Halifax
Halifax see it out and reach the last four of the Challenge Cup.
Post update
Bradford 16-20 Halifax
Fax have the ball and are running down the clock. Bolton is drawing nearer....
Post update
Bradford 16-20 Halifax
A break in play as a Bradford player is injured in a tackle.
That gives both sides a chance to catch their breath before one final flurry.
Play will restart on the fifth tackle for Bradford.
Post update
Bradford 16-20 Halifax
Quentin Laulu-Togaga'e picks up a Jordan Lilley kick and runs into space.
Fax have the ball inside the Bulls 20 with two and a half minutes left.
Post update
Bradford 16-20 Halifax
This game has swung one way and then the other in the second half.
Is there one more twist before we find out who claims the last semi-final spot?
TRY: Bradford 16-20 Halifax
James Woodburn-Hall, goal con Tyrer
And Fax do reply!
James Woodburn-Hall set up their last try, but this one is all his own work.
He throws in a dummy then steps on the gas and breaks the Bradford line.
Woodburn-Hall has support but he doesn't need it as he dummies again and goes over. A brilliant solo score.
Steve Tyrer kicks the goal and Halifax are a score ahead heading into the final five.
Post update
Bradford 16-14 Halifax
What response do Halifax have?
Their Challenge Cup dreams are looking like they might be slipping away.
Dalton Grant does well to gather a high Scott Murrell kick in front of his own line on the last Fax tackle.
TRY: Bradford 16-14 Halifax
Matty Wildie, goal con missed
Kevin Larroyer takes the ball into contact, but it spits out under pressure from three Bradford players.
Matty Wildie was the man on hand to take advantage and put Bradford back ahead.
Jordan Lilley cannot add the extras from the left of the sticks.
The rain is making conditions tricky at Odsal.
TRY REVIEW
Bradford 12-14 Halifax
Bradford's Matty Wildie picks up a loose ball after it popped out in a tackle and wins a foot-race to the line.
Have Bradford got the lead again? We're going upstairs for a video review.
Post update
Bradford 12-14 Halifax
Bradford get going again 15 yards from their own line following another kick to touch from Scott Murrell.
The game remains close, with the sides slugging it out.
TRY: Bradford 12-14 Halifax
Scott Grix, goal con Tyrer
This time Fax do find the breakthrough.
A great break and offload from James Woodburn-Hall sets up Quentin Laulu-Togaga'e and he streaks through before setting up Scott Grix for the score.
Steve Tyrer adds the extras from in front of the post and the visitors are back ahead.
Post update
Bradford 12-8 Halifax
Halifax benefit from a scrappy period of play as Scott Murrell's kick is charged down and they regain the ball.
The visitors work their way up to 10 metres of the line but can't find a way through again as Murrell is stopped short.
Brandon Moore knocks on on the last tackle, which lets the Bulls off the hook.