The Alexander Stadium in Perry Barr is the headquarters of UK Athletics, and one of only two British venues to host fixtures in the elite international IAAF Diamond League. It is also the home of Birchfield Harriers, which has many international athletes among its members. The National Indoor Arena hosted the 2007 European Athletics Indoor Championships and the 2003 and 2018 World Indoor Championships, as well as hosting the annual Aviva Indoor Grand Prix – the only British indoor athletics fixture to qualify as an IAAF Indoor Permit Meeting – and a wide variety of other sporting events.