150 for Ben Slaterpublished at 16:11 British Summer Time 17 September

16:11 BST 17 September

Kent v Notts 278-3

This is the fourth time Ben Slater has reached 150 in first-class cricket.

Every run feels like it has come very easily for Slater today - he's been there since the start.

Time for the final session in Manchester.

Somerset need to knuckle down and build a partnership if they are to get anywhere near adding some batting points to the three they earned for bowling Lancashire out cheaply earlier on.

With Tom Kohler-Cadmore out to the last ball before tea, James Rew is new to the crease for the final four of George Balderson's over.

Liam Dawson has found himself on 38 without anyone noticing.

He's been busy at the crease, with all four of his boundaries very dismissively played.

The all-rounder has added 86with Nick Gubbins, who is still churning away on 111.

Adam Lanigan
BBC Sport at Old Trafford

A frenzied session of Championship cricket at Old Trafford - 98 runs and 10 wickets falling. Madness!

Lancashire lost four wickets for one run earlier. Somerset have lost three for seven in the last few minutes.

You would not bet against there being a third innings in this match before the end of play.

I'm certain this game will not get to Friday. At this rate, we may not even get to Thursday!

Kent have had a think over a brew and come up with a fresh plan of attack.

Jack Leaning is going to have a bowl.

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An initially decent effort from Warwickshire as they attempted to rescue a desperate situation has petered out slightly.

At one stage with Essex stuttering at 50-5 even a first innings lead looked a possibility.

But runs have started to come a little easier now the ball has softened as Essex have slowly reeled in their initial target.

The current stand between Michael Pepper (22no) and Matt Critchley (32no) is now up to 54 which, in the context of the day, is by some way the high-water mark.

100 for Nick Gubbinspublished at 15:54 British Summer Time 17 September

15:54 BST 17 September

Hampshire 249-4 v Worcs

Century No.3 of the season for Nick Gubbins.

He rocks forward and strikes to the boundary through a thick outside edge.

Gubbins has had to grind it out in the afternoon and gets his reward.

Image source, Rex Features

Martin Emmerson
BBC Radio Newcastle

Image source, Rex Features

Leaders Surrey have enjoyed the best of day one so far here at The Oval, with Durham struggling to 207-6 after 64 overs.

There have been a few partnerships which looked like they could develop into bigger things, but that hasn't really happened, with the bowlers keeping the pressure on throughout much of the day.

The last wicket was worth 70 but the partnership was over when Bas De Leede mis-timed a pull shot from Tom Curran and was caught at mid-wicket for 36.

Colin Ackermann will resume after tea on 38. It looks like a great batting track when the sun is out, but seems to change in nature when the cloud cover comes in.

The final session is already under way at Wantage Road, where Leicestershire were bowled out a couple of overs short of the scheduled interval and tea was taken slightly early.

A new-look opening pair of Luke Procter and Gus Miller in this match for the home side - and Procter starts the latest Ian Holland over with two fours from the first three balls.

A much more even session, but Notts are in the more commanding position.

Ben Slater remains on 146, but saw three partners dismissed during the afternoon.

A couple of singles for Sussex from the final over before tea at Bristol and they will very content with the match situation at this point.

Having bowled out Gloucestershire in 43.4 overs, they lost Oli Carter for 10, caught behind off Zaman Akhter.

But Tom Haines (25 not out) and Tom Clark (19 not out) prevented any further damage before the interval and they will be looking to push on towards a healthy lead in the final session.

That wicket of Bas de Leede just before the break probably gives Surrey the whip hand on this opening day.

Durham were in huge trouble at 134-5 - after an opening stand of 60 - but de Leede, 36, and Colin Ackermann, who walks off 38 not out at the break, have brought Durham back into the day.

Kevin Hand
BBC Radio London

Middlesex found a more consistent line and length in the afternoon session and were fully rewarded on a pitch that is offering plenty to the seamers.

The Derbyshire collapse of 6-3 was unexpected but the bounce has been inconsistent throughout, while there has also been movement off the grassy surface.

Middlesex wicketkeeper Jack Davies has been left reeling on a number of occasions by balls that have kept low and struck him on the wrist, having bounced on a second occasion once past the batter.

It's a 'you miss and I hit' pitch and Derbyshire will surely be more relentless in bowling wicket-to-wicket than the visitors were in the morning session.

The approach of opening pair Sam Robson and Mark Stoneman in reply will be interesting, given the number of batters struck on the glove. It's a must win match for Middlesex and if wickets start to tumble in a similar fashion then the visitors may have to counter with an aggressive response.