Warwickshire batsman/wicket keeper Tony Frost was 141 not out on the third day of Warwickshire's County Championship game at Gloucestershire.
Resuming on 151-4, Warwicks batted throughout the day and although they lost some cheap wickets including Ant Botha for a duck, Frost took his total on to 141 from 304 balls.
Going into the final day, Warwicks are 399-8.