Billy Hamilton has been one of the best defensive center fielders in all of baseball since he became the everyday center for the Cincinnati Reds in 2014. Hamilton saved 15 runs during the 2016 season, 8 by range, 3 by throws and 4 by great plays. His range factor was second to only Ender Inciarte of the Atlanta Braves.
Adam Duvall was the second best left fielder in all of baseball. Unlike Hamilton, he did almost all of his work in range where 15 of his 16 runs saved came from. He made one great throw, but his 2.