|Specsavers County Championship Division One, Cooper Associates County Ground (day one)|
|Surrey 330-6: Burns 107, Elgar 103, Stoneman 50; Gregory 3-44|
|Somerset: Yet to bat|
|Surrey 3 pts, Somerset 2 pts|
Centuries from Rory Burns and Dean Elgar put Surrey in control on day one at Taunton before Somerset hit back with wickets after tea.
Mark Stoneman (50) helped Surrey make a good start before Burns (107) and Elgar (103) piled on the runs, adding 166.
Lewis Gregory (3-44) led the fightback with the ball, having Elgar lbw, as the visitors went from 265-2 to 295-6.
Ryan Patel and Rikki Clarke helped Surrey regain their composure as the defending champions closed on 330-6.
Surrey, who drew their opening match of the Division One season, were able to put their poor One-Day Cup campaign behind them after winning the toss and deciding to bat.
The Londoners were 99-2 after losing Stoneman and Scott Borthwick in quick succession, but captain Burns and South Africa international Elgar both went on to score their first centuries in the Championship this summer.
After England opener Burns top-edged a delivery from Tim Groenewald to Craig Overton, Surrey suffered a mid-order collapse as Ben Foakes and Will Jacks both failed.
Somerset began the match top of the table following victories in their first two games but were unable to further press home their advantage as Patel (25) and Clarke (28) held out until stumps.