Complex sentence: He also had three second place finishes in the 2000 season, which included 11 top-10 finishes, 2nd for the second time in his career on the Order of Merit and it was his highest ever season in terms of prize money.
Split into simpler sentences: He also had three 2nd place finishes in the 2000 season, which included eleven top-10 finishes. He finished 2nd on the Order of Merit and it was his highest ever season in terms of prize money.