There's only one place to start this week and it's at Grace Road where Niall O'Brien scored a quite brilliant 133 for Leicestershire against Glamorgan.

The left-hander's knock occupied just 141 deliveries and he struck 14 fours and two sixes in a wonderful exhibition of stroke-play, which helped the home side rack up an imposing 500.

Despite this, O'Brien couldn't help his side to a win, as Glamorgan hung on for a draw in an enthralling final day.

Ed Joyce just missed out on his fourth first-class century in April as his Sussex side suffered an innings defeat against Somerset, for whom Marcus Trescothick scored his first Championship hundred in two years.

Joyce was dismissed for six in the first innings as Sussex scored just 142 in reply to So,erset's 372.

Following on, Joyce was a lone shining light as he top scored with 93 out of Sussex's 219 all out. He struck 12 fours and a six in his 175 ball stay at the crease.

There was better news for William Porterfield as Warwickshire defeated Nottinghamshire. The Irish skipper struck 10 boundaries in his 56 from 79 balls, as The Bears totalled 263 - Ian Bell top scoring with 122.

Second time around Porterfield made 22 as Warwickshire set The Outlaws a winning target of exactly 300. They fell 98 runs short as Porterfield completed a fine all-round display by taking two catches.

Tim Murtagh was involved in a quite extraordinary run chase as Middlesex completed their highest run chase at Lord's, the third highest on the ground and the third highest in their history as they hit 472-3 to beat Yorkshire.

Murtagh claimed 3-48 as Yorkshire were dismissed for 178, but a batting collapse saw the home side struggle to 123 - Eoin Morgan top scoring with 33.

It really was a game of two halves as Yorkshire piled up what looked like a match winning 416 thanks to a Gary Balance century, who was eventually dismissed for 133 by Murtagh (2-77).

Aussie Test star Chris Rogers then compiled a brilliant unbeaten 241 as records tumbled in the remarkable game.

Graeme McCarter enjoyed a successful first appearance of the season for Gloucestershire in their draw match against Essex. The medium pacer took 3 for 64 with his wickets including Ravi Bopara.

Rain ruined Surrey's drawn match with Hampshire with Gary Wilson not getting to the crease as Surrey scored 99 for 2 in reply to 400 for 6.