Yorkshire Vs Hampshire - Headingley Cricket Ground
Yorkshire showed why they are primed for a third consecutive title with a paradigmatic fightback against Hampshire on day one. The hosts found themselves on the verge of a calamity early on being reduced to 41/3 with Alex Lees, Gary Ballance and Andrew Gale back in the pavilion. Jonny Bairstow (107)* and Adam Lyth (111) then began the fightback with some excellent counter-attacking batting and in the blink of an eye, the two were out of sight as they went on to complete their hundreds later in the day.
Lyth was eventually trapped in front by Sean Ervine to leave the score at 246/4, which soon became 249/5 as Jack Leaning was out caught behind too, to Chris Wood. At stumps, Yorkshire were 270/5.
Lancashire Vs Nottinghamshire - Emirates Old Trafford
Lancashire got their season off to an absolute flier against Nottinghamshire, thanks largely to Neil Wagner's startlingly crackerjack debut who recorded figures of 6/66 - the best by any Lancashire bowler for over a century. Now that's how you make a mark.
Wagner's frightening spell meant Nottinghamshire were bowled out for a scanty 242 helped largely by Chris Read's brave 52. In reply, Lancashire didn't get off to the best of starts themselves losing Karl Brown for a duck. Luke Procter and Haseeb Hameed, however, got through the tricky period to finish the day at 25/1.
Middlesex Vs Warwickshire - Lord's Cricket Ground
Who wants to be an England selector? Well, nobody at the moment and the reason for that is "another" England international Sam Robson stole the show in London with a fine 175* off 280 deliveries.
Nick Gubbins - the other opener - played his part too on the way to a half-century (68) in a stand worth 180 runs. Four quick wickets, though - two each for Chris Wright and Keith Barker- changed the complexion of the day to some extent as Adam Voges' side finished at 317/4.
Sussex Vs Essex - BrightonandHoveJobs.Com County Ground
On what was an emotional day as the Sussex players remembered Matthew Hobden, Chris Nash (119) whacked a belligerent hundred while Ed Joyce struck a typically patient 61 off 196 deliveries in an opening stand of 188 runs to get themselves off to the perfect start.
But, as we've often seen, a good start was followed by self-destruction. From 188/0, Sussex collapsed to 289/6 only to be rescued by Oliver Robinson (51) and Ajmal Shahzad (24)* who restored some much needed order to the innings. At the end of a mad day at Hove, Sussex were 355/8.
Gloucestershire Vs Derbyshire - Bristol County Ground
Having decided to bat first, Derbyshire guaranteed themselves a good start to the season with a measured batting performance on day one at Bristol. It was almost as if they came out with the motive to promote the County Championship's widely used "proper Cricket" hashtag on social networking websites.
The tone was set right from the start by openers Ben Slater (42) and Chesney Hughes (96) who shared a stand of 103 off 232 deliveries before the former was out caught behind. A second wicket quickly followed for Gloucestershire, but skipper Wayne Madsen dug in to work his way to a hard-fought 58 off 180 deliveries. At the close of play, Derby were 242/3.
Glamorgan Vs Leicestershire
Could it be? Could Clint McKay be the Jamie Vardy of Leicestershire's 2016 season? He certainly made a case for himself with 6/73 to bowl Glamorgan out for 348, a total well within the Foxes' reach.
The home side would no doubt have felt disappointed with what they ended up with, especially after Graham Wagg (64), Chris Cooke (56), David Lloyd (59) and Will Bragg (50) all got fifties but none of them could convert them into a hundred.
Leicestershire were 15/0 at stumps.