Rick Porcello has posted 7.1 fWAR, valued at $57.4 million, in the first two seasons of his four-year, $82.5 million contract. The right-hander posted 2.0 fWAR, valued at $16.3 million, last year.
FanGraphs Depth Charts project 2018 WAR of 2.5 in 29 starts for Porcello, 1.6 in 26 starts for Lance Lynn and 2.0 in 23 starts for Alex Cobb.
Steamer projects 2018 WAR of 2.4 in 29 starts for Porcello, 1.3 in 26 starts for Lynn and 1.7 in 23 starts for Cobb.
ZiPS projects 2018 WAR of 2.7 in 30 starts for Porcello, 2.1 in 31 starts for Lynn and 2.5 in 26 starts for Cobb.
https://www.fangraphs.com/statss.aspx?playerid=2717&position=P
https://www.fangraphs.com/statss.aspx?playerid=2520&position=P
https://www.fangraphs.com/statss.aspx?playerid=6562&position=P
Porcello is at least a year younger than Lynn and Cobb.