Another away day, this time to Cardiff City, will serve as a difficult start to the Championship season. Match Competition Venue Date/Time Middlesbrough vs. Wrexham Carabao Cup Riverside Stadium, Middlesbrough. ET / 8 p.m. BST Cardiff City vs. Wrexham EFL Championship Cardiff City Stadium, Cardiff. ET / 8 p.m. BST Wrexham vs. Watford EFL Championship Racecourse Ground, Wrexham. ET / 3 p.m. BST Wrexham vs. Birmingham City EFL Championship Racecourse Ground, Wrexham.