By Muhammad Rafiq DUBAI: Racing at Meydan on Saturday, a seven-race card which starts at 4:00 p.m., is highlighted by three AED 190,000 handicaps, of which two are on turf, including the 2000m finale (District One Crystal Lagoon Trophy). Topping the the maximum field of 16 is Dubai World Cup Carnival aspirant Key Bid, who exits a resounding victory on dirt …