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Liriano: 172.1 IP
Felix: 225.2 IP
It's not even KINDA close.
That was my point. Sandy was focused exclusively on the rate statistics and not at all on the bulk statistics. It is actually significantly easier to have a low xFIP with 170 IP than it is to do the same with 225 IP...the more you pitch...the harder it is to be at max effort on each pitch. That's why relievers have a higher K rate, better K/BB and lower BABIp than starters.