It was a slog through three inches of rain that fell at Churchill Downs on Saturday, but Bob Baffert-trained colt Justify had the first nose across the finish line at the Run for the Roses, reports the Washington Post. Justify won by 2 1/2 lengths and is now the first horse to win the Derby in 136 years after not racing as a 2-year-old; he began racing in February, reports the AP. He's now 4-0 in his racing career. It was the wettest Derby ever, and Justify, ridden by Mike Smith, gave Baffert his fifth win at the first leg of the Triple Crown. Baffert won his only Triple Crown in 2015 with American Pharoah. (More Kentucky Derby stories.)