Warwickshire County Cricket Club drew their County Championship game with Middlesex at Edgbaston.
Boyd Rankine and Chris Wright both recorded five wicket hauls as Middlesex were all out for Middlesex for 412.
This left Warwickshire needing 367 to win from minimum of 82 overs.
Ian Westwood went for a duck and Varun Chopra 2 with Porterfield making 12 and Maddy ten.
Jim Troughton made 42 and Tim Ambrose an unbeaten 33 as Warwicks battled on to 152-7 before the captains shook hands.