premise: California Chrome (foaled February 18, 2011) is an American Thoroughbred racehorse. He was named the 2014 and 2016 American Horse of the Year. He won the 2014 Kentucky Derby, the Preakness Stakes, and the 2016 Dubai World Cup. In 2016, he surpassed Curlin as the all-time leading North American horse in earnings won.
hypothesis: California Chrome won competitions in 2018.
reason: The statement is not definitely correct or definitely incorrect because it is not mentioned in the paragraph whether or not California Chrome won any competitions in 2018. It may have been difficult for the system because it has no reference point for the year 2018.