CAREER RECORDS
Most Opening Day starts (pitcher): Tom Seaver, 16
Most consecutive Opening Day starts: Jack Morris, 14 (1980-93)
Most Opening Day home runs: 8 (tie)
Adam Dunn, Ken Griffey Jr. and Frank Robinson
Most Opening Day hits: Pete Rose, 31
https://www.mlb.com/news/opening-day...hups-and-facts