Postpublished at 15:11 British Summer Time 4 July
*Boulter 6-4 1-6 2-2 Dart
We're at a sixth deuce in game five of set three. Dart has missed five break-point chances, Boulter has failed to convert a game point. Epic.
Michael Emons, Joe Rindl, Bobbie Jackson, Marissa Thomas, Adam Chowdhury and Eduardo Tansley
*Boulter 6-4 1-6 2-2 Dart
We're at a sixth deuce in game five of set three. Dart has missed five break-point chances, Boulter has failed to convert a game point. Epic.
*Fearnley 3-6 4-6 2-2 Djokovic
Novak Djokovic isn't happy, chuntering away and shrugging his shoulders in the direction of his box after Jacob Fearnley smashes a forehand winner to go up 40-15.
His discomfort does enough to put off Fearnley though who nets the next point and then Djokovic plucks over a winner at the net. Deuce.
*Boulter 6-4 1-6 2-2 Dart
Laura Robson
Former British number one on BBC Radio 5 Live and BBC Sounds
Whoever comes through this game, surely if she can get through this, she can get through anything.
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*Boulter 6-4 1-6 2-2 Dart
Four chances have come and gone for a break for Harriet Dart in this game. Make that five as she sends a forehand long.
We're at the two-hour mark for the match. No-one is going anywhere. This one is finely poised, with both players giving it everything they have got.
*Fearnley 3-6 4-6 2-2 Djokovic
Back to Centre Court where neither player has had a sniff on their opponent's serve so far in the third set. Novak Djokovic holds to love.
Srosh Khan
BBC Sport at Wimbledon
Ben Shelton is playing an absolute blinder in the fourth set on Court 18. He roars at every point and so do the crowd.
They love him here and he's lapping it up.
It's 2-2 against South African Lloyd Harris.
*Boulter 6-4 1-6 2-2 Dart
Having just seen Katie Boulter fail to take three break points in the last game, Harriet Dart has just done the same in this one, although she now has another chance for a break.
Fearnley 3-6 4-6 2-1 Djokovic*
We're racing along in the third set now on Centre Court.
Novak Djokovic holds to 15 without incident and then Jacob Fearnley backs things up with a hold to love.
*Dimitrov 5-7 6-7 (4-7) 6-4 0-1 Shang
Grigor Dimitrov, the 10th seed Bulgarian, has started a comeback, winning the third set of this contest against China's Shang Juncheng, who couldn't return Dimitrov's serve on set point.
*Boulter 6-4 1-6 2-2 Dart
A well-disguised drop shot that leaves Katie Boulter floundering earns Harriet Dart the applause it deserved. It also takes the score to 15-30 on the Boulter serve and a half chance for her opponent.
*Wang 6-4 6-6 (3-2) Pegula
Charlotte Coates
BBC Sport at Wimbledon
We’re into a tie-break on court three as the crowd respond to Jessica Pegula’s efforts late in the second set.
The American has been far from her best out here and Wang Xinyu is threatening to knock the fifth seed out.
“Great point” shout Pegula’s team as they attempt to get a tune out of her.
Emily Salley
BBC Sport at Wimbledon
Lily Miyazaki hasn’t had much time to think about her defeat by Daria Kasatkina earlier this morning.
Maybe that’s for the better.
She is back in action with fellow Briton Emily Appleton in the women’s doubles.
The pair are currently on serve in the first set against Xiyu Wang and Lin Zhu of China over on court seven.
*Boulter 6-4 1-6 2-2 Dart
That's a great game to hold for Harriet Dart as she fought off all three break points she faced. No separating the pair at the moment.
Fearnley 3-6 4-6 1-0 Djokovic*
Here's the moment the second set swung in Novak Djokovic's favour:
Fearnley 3-6 4-6 1-0 Djokovic*
Decent start to the third set from Briton Jacob Fearnley who stops a steamrolling Novak Djokovic with a hold to 30.
Boulter 6-4 1-6 2-1 Dart*
Boulter pounced on an attempted sliced drop shot which sat up invitingly to earn a third break point in this game. But once more Boulter can't take it as she loses out in a forehand rally, going long from the baseline and it's back to deuce.
The game is already up to the nine-minute mark and this could well be a turning point. But which way?
Boulter 6-4 1-6 2-1 Dart*
Laura Robson
Former British number one on BBC Radio 5 Live and BBC Sounds
The difference in this third set is the fact that Katie Boulter has cut down on some unforced errors.
Alex de Minaur is standing up after every point that Boulter is winning at the moment because he feels that she needs the energy, she needs that boost.
Boulter 6-4 1-6 2-1 Dart*
It's a tight fourth game and Katie Boulter has had a couple of break-point chances for what could well be the decisive break, but couldn't take either as Harriet Dart is clinging on to her serve. Deuce.
Great entertainment for the fans on Court One. We hoped it would be good between the British number one and two and it certainly has been.