Chris Nash made his first century of the season as Sussex secured a comfortable Championship draw at Arundel today.

He scored an unbeaten 102 against winless Surrey to ensure Sussex remain unbeaten in division one.

The teams shook hands at 4.50pm with the hosts cruising along at 201-2 in their second innings – a lead of 40 - and no prospect of a result.

Nash reached three figures off 173 balls, hitting 11 fours.

Sussex were given 78 overs to survive and wipe out a first-innings deficit of 161 after a brief Chris Tremlett onslaught this morning.

They saw it through comfortably on an easy-paced Arundel wicket.

The openers put on 107 before Luke Wells departed for 50, one of two wickets for Zafar Ansari.

The spinner also had Mike Yardy caught close in for eight but Ed Joyce was 26 not out.

Resuming this morning with a lead of 68, Surrey added 93 in 15.3 overs to declare on 456-9.

Zander de Bruyn, 99 overnight, progressed to 111.

But the real momentum was provided by Tremlett, whose 54 came off 33 balls and included four sixes off Steve Magoffin.

Tremlett and Tim Linley scored 74 off the last seven overs of the Surrey innings.

Sussex eventually cleared their first-innings deficit in the last over before tea.