2018 rating: 8.98
2017 rating: 7.62
2018 salary: $3.3 Million (Arb-1)
2018 performance: 614 PAs, 164 hits, 30 HRs, 87 RBIs, 8.98.293/..352/.516 = .868 OPS. He played left field.
2019 status: He is on the D-backs 40-man roster, and he is projected to start the season on the 25 man-roster in left field.
In two seasons (2015 and 2018), David Peralta played over 94% of his innings in left field. Those same two seasons were his best hitting seasons (OPS+ 137 and 124). Coincidence? Maybe. But in the other three seasons, when he played less than half his innings in left field, his hitting was less than his best (OPS+ 112, 86, and 100).