Dominic Stricker v Dan Evans 3-6, 6-4 play suspended
Katie Boulter beats Harriet Dart 6-7 (5-7) 6-4 7-5
Heather Watson defeats Kayla Day 4-6 6-0 6-4
Click the play icon to watch live coverage from Nottingham
Image source, Getty ImagesNext up on centre court in Nottingham is British number three Dan Evans taking on Swiss player Dominic Stricker in the men's Challenger tournament.
You can watch their match on this page by clicking the 'Watch live' button at the top.
And we're going to bring an end to our live text today, so thank you for joining me. As Katie Boulter says, it was an absolute battle.
Defending champion Katie Boulter speaking after her win: "Full credit to her that was an absolute battle. She's an incredible grass-court player. I tried to do the best I could because she was playing seriously good stuff."
Players always tell us they want minutes on the court, was that the case today? "I take that back completely. I would have taken a much easier win that's for sure. I'm not sure I've seen a three hour 13 minute grass-court match. I'm not sure that's possible.
"This place is pretty special to me. To be back here it gives me goosebumps. This is where it all started to kickstart my career. I'm just going to try to keep on working hard. Hopefully the victories come too."
Dart 7-6 (7-5) 4-6 5-7 Boulter
Defending champion Katie Boulter secures her place in round two with a powerful forehand that Harriet Dart can't return over the net.
It was an epic, over three hours. What a match between these two Britons!
Dart 7-6 (7-5) 4-6 5-6 Boulter*
But Boulter's next serve is unreturnable. Match point number three.
Dart 7-6 (7-5) 4-6 5-6 Boulter*
A stunning return from Harriet Dart drops into the corner.
We go on.
Dart 7-6 (7-5) 4-6 5-6 Boulter*
Harriet Dart hits a backhand on the run long. Katie Boulter will have another shot.
Dart 7-6 (7-5) 4-6 5-6 Boulter*
But her next forehand drops wide. Match point saved. Deuce.
Dart 7-6 (7-5) 4-6 5-6 Boulter*
Boom! Katie Boulter sprints towards the net and fires a forehand winner into the corner. 40-30.
Dart 7-6 (7-5) 4-6 5-6 Boulter*
Harriet Dart slices wide. 30-30.
Dart 7-6 (7-5) 4-6 5-6 Boulter*
Double fault. What a time for it! 15-15.
And then Boulter errors the next point into the net. 15-30.
Dart 7-6 (7-5) 4-6 5-6 Boulter*
Out. Harriet Dart hits a forehand between the tram lines. 15-0.
Dart 7-6 (7-5) 4-6 5-6 Boulter*
Harriet Dart attempts a drop shot but doesn't get enough on it and sees her effort ripple into the net.
Katie Boulter punches the air. She breaks and will now serve for the match.
*Dart 7-6 (7-5) 4-6 5-5 Boulter
Dart then goes long. 30-40 and break point Boulter.
*Dart 7-6 (7-5) 4-6 5-5 Boulter
Harriet Dart hits a fine forehand winner of her own and then a Katie Boulter error levels things up at 30-30.
*Dart 7-6 (7-5) 4-6 5-5 Boulter
Boulter places a backhand brilliantly down the line. Suddenly it's 0-30 for the world number 30.
*Dart 7-6 (7-5) 4-6 5-5 Boulter
Katie Boulter holds to 15 as we enter hour number three on centre court.
It's been an absolutely gruelling battle and we're still level!
Dart 7-6 (7-5) 4-6 5-4 Boulter*
Boulter is handling the pressure well. She moves to 40-0.
Dart 7-6 (7-5) 4-6 5-4 Boulter*
This is big. A must-hold serve.
Katie Boulter had been a break up in this set remember.
She fires through a forehand to move to 15-0.
Image source, Getty ImagesDart 7-6 (7-5) 4-6 5-4 Boulter*
Harriet Dart holds to 30. She's one game away from knocking out the third seed.
*Dart 7-6 (7-5) 4-6 4-4 Boulter
Oh wow. Maybe not. Harriet Dart then hits a peach of a backhand, right by the sideline, to take the next point.