Derbyshire resumed on 462-7 but lost quick wickets to Rankine who struck twice and Ian Salisbury,whose wicket gave him a five wicket haul to finish two runs behind the Warwicks total of 476.
Warwicks batted all day and were 241-4 with Darren Maddy making 138 from 222 balls in a total which included sixteen fours, before the match was declared a draw and Warwicvks take their unbeaten County Championship run into September.