Complex sentence: He finished runner-up seven times, which is the record and had a total of sixteen top-5 finishes, which is tied most in Open history with John Henry Taylor and easily the most in the postwar era.
Split into simpler sentences: He finished runner-up seven times, which is the record. He had a total of sixteen top-5 finishes, which is tied most in Open history with John Henry Taylor and easily the most in the postwar era.