Every Kentucky Derby is wide open. It’s why bettors love it. Any horse race is tough to predict, but when you throw 20 of the world’s best thoroughbreds on the same track in front of 150,000 people, chaos will ensue. But the 152nd Run for the Roses may be even more unpredictable than usual. No. 1 Renegade is the favorite to win this year’s Derby, but the Kentucky-bred is a lukewarm 4-1 price, putting him just a shade ahead of No. 6 Commandment and No. 18 Further Ado, who both were priced at 6/1