Yorkshire 208-4 (Ballance 23, Rhodes 4)published at 38 overs
Will Rhodes cannot quite attune himself to Liam Norwell's line and length as just two singles come off his sixth over. This is a good comeback from Gloucestershire.
Yorkshire make 263-9 from their 50 overs
Gloucestershire reach target with three overs to spare
Glos captain Michael Klinger hits unbeaten 137
Surrey play Notts in Monday's semi-final
Paul Grunill, Kalika Mehta and Phil Shepka
Will Rhodes cannot quite attune himself to Liam Norwell's line and length as just two singles come off his sixth over. This is a good comeback from Gloucestershire.
A quick, almost effortless, over from Jack Taylor leaks just four singles and Will Rhodes looks to get his eye in.
Will Rhodes is the new man at the crease as Gary Ballance tucks the ball through midwicket for a couple to bring up Yorkshire's 200.
The hosts will probably be looking to motor now to get as high a score on the board as possible.
Yorkshire 198-4 (Ballance 18)
Liam Norwell has his reprieve as he traps Jonny Bairstow plumb in front with a fuller ball that the England player misses. It's all smiles for the Gloucestershire bowler now. He will be mightily, mightily relieved by that.
Liam Norwell is being given a bit of grief on the boundary edge by the Yorkshire fans as he fumbles a simple pick-up to allow Jonny Bairstow and Gary Ballance to run in an easy two off Jack Taylor. That drop could be so costly for Gloucestershire.
Richard Blakey
Ex-Yorkshire and England wicketkeeper on BBC Radio 5live
"It's very, very disappointing. It was such an easy catch as well, and all of a sudden Jonny Bairstow has been reprieved and has the chance to crack on with his innings. He looks pretty well set and Gloucestershire would have been elated to get him out at that stage."
Yorkshire 192-3 (Bairstow 34, Ballance 13)
Liam Norwell is brought back into the attack and the right-arm medium pacer has had a moment of madness. Jonny Bairstow chips the ball straight back to the 23-year-old for the simplest of caught-and-bowled dismissals but as he looks to throw the ball up in celebration he lets it slip out of his hands. Norwell has his head in hands and looks distraught.
It brings back memories of Herschelle Gibbs during South Africa's 1999 World Cup game against Australia and it is a massive let off for Bairstow.
In case you missed the news earlier on, Australia all-rounder Shane Watson has retired from Test cricket.
This is what he's had to say about it:
"I announce my retirement from Test cricket today with a heavy heart.
“Playing for my country has always been an absolute privilege, and there is no more challenging environment than Test cricket.
“I have given my all to be the best I can be, physically, technically and mentally, and while I have not always achieved the personal goals that I set myself in Test cricket, to have played over 50 Tests and to have captained my country is more than I ever dreamed of."
A short ball from James Fuller is duly dispatched to the boundary ropes by Jonny Bairstow. The Gloucestershire bowlers continue to struggle with their lines as Yorkshire tick along.
Brilliant shot from Jonny Bairstow as he sends spinner Tom Smith straight back over his head for a maximum. There was a glint of worry in his eye but the powerful shot cleared the man at long-on.
Yorkshire are back on course after a bit of a wobbly spell.
Yorkshire, who look set to wrap up the Division One title next week, have never won two trophies in the same year.
Jonny Bairstow and Gary Ballance eke five singles off James Fuller's over as they keep the score ticking over nicely.
Gary Ballance announces himself to the Gloucestershire bowlers as he reverse-sweeps Tom Smith through backward point for a boundary. 20 overs to go.
The end of one England player brings yet another to the crease for Yorkshire as Gary Ballance strides on the Headingley pitch. It is a brilliant over from James Fuller as he loses just one run and takes the vital wicket of Adam Lyth.
Richard Blakey
Ex-Yorkshire and England wicketkeeper on BBC Radio 5live
"It was a brilliant innings and he's abolutely livid with himself, he's so disappointed not to get to three figures. It wasn't a great ball, it wanted hitting, to be honest."
Yorkshire 159-3
A great knock from Adam Lyth comes to an agonising end as he falls four runs short of his century. The England opener went for a pull shot and the ball skewed high up in the air off a top edge and David Payne takes a good catch running in from long leg.
The good work the Gloucestershire players had done to try to restrict the scoring is being undone by some great running between the wicket by Adam Lyth and Jonny Bairstow. They take a couple of singles and twos off Tom Smith to keep the score ticking over.
Thank you, Paul. Yorkshire look set for a reasonably good total here as the run-rate approaches 5.5.Jonny Bairstow continues to look in fine form as he takes James Fuller for a couple of twos and a well-placed boundary down to long leg.
Tom Smith enters the fray with his slow left-arm and is lucky to get away with a single as he sends down a full toss to Bairstow. Lyth dabs down for one to move into the 90s, but that's a decent start by Smith.
And now, I'm going to leave you in the capable hands of Kalika Mehta for the next part of the match...