 With another run over distance (for second against older horses at Otaki) under his belt, he travelled to Ellerslie for the Derby and was rated a $15 chance.That dropped to $10 when there was some substantial rain on the morning of the race, as he had proven himself to be proficient on rain-affected ground earlier in his career.Given a perfect ride by regular rider David Walker, C'est La Guerre exploded to the lead early in the home straight and raced clear of Prince Kaapstad and Fritzy Boy, passing the line with ears pricked four lengths clear of the runner-up.