Phillies games played leader: Mike Schmidt (2,404)
Unless Harper signs an extension and keeps playing into his mid-40s, this one is just flat-out impossible. Schmidt spent his entire 18-year career with the Phillies, and played 100+ games in all but his first and last seasons. Between 1973-88, he averaged 147 games per season.
The pandemic-shortened 2020 season also hurts Harper, here. He played 58/60 games, but it’s a year of his career in the rearview mirror.
In order to break this record over the next decade, the MLB season would need to lengthen, as it would take Harper 204.9 games per year to overtake Schmidt.
Phillies runs leader: Mike Schmidt (1,506)
Can Harper score 126.7 runs in each of the next 10 seasons? That’s what he’d need to do in order to set a new runs-scored record.
Schmidt averaged 101 runs scored per 162 games. Harper has scored 100+ runs three times in his career, including 2021.