Matt Chapman, over the last 4 seasons, has produced 17.5 wins above replacement. He's got a month to go so he'll probably finish around 18, but that won't change the comparables. I've found 7 players who played third base, had between 15-25 WAR for ages 28 to 31, did this after 2000, and are either retired or at least past their age 37 season.
The group:
Player |
WAR 28-31 |
WAR 32-37 |
Josh Donaldson |
25.9 |
12.4 |
Scott Rolen |
21.3 |
16.8 |
Adrian Beltre |
20.4 |
35.8 |
Corey Koskie |
16.9 |
2.5 |
David Wright |
16.4 |
0.6 |
Evan Longoria |
15.7 |
7.5 |
Troy Glaus |
15.4 |
0 |
Average |
18.9 |
10.8
|
Interesting to see Donaldson on the list. After the 2014 season Oakland traded him to Toronto for 4 prospects or young players, none of whom particularly worked out for Oakland. Donaldson of course brought the rain to Toronto's indoor stadium and was the 2015 MVP. Yet somehow the A's let history repeat, trading Chapman north of the border for 4 players. Three of the 4 are already gone from the A's organization, though it is too early to give up on Gunnar Hoglund. A 24 year old, he pitched well in AA this past year.
Some of the players didn't provide a lot of value because of injury. While Chapman has been a durable player and keeps himself in great shape, the risk can't be ignored. When you sign 32 year old players to 6 year deals, some of them aren't going to last.
If he ages like Beltre, then obviously the Giants made a great deal. There is no way that Chapman is going to play like Beltre and become a .300 hitter late in his career, but it is possible he gives you similar value. A top end projection on Chapman would probably look like a .250 average, but 80-90 walks per year and 30+ homers.
Wright, Koskie, and Glaus were the injured ones and represent disaster deals. Longoria and Donaldson had some injury issues, but did make it through to age 37 and provided some value. An outcome like theirs would be an overpay for the Giants.
A Scott Rolen outcome would be a fair deal. Not a bargain, not an overpay. He only average 108 games per year during that stretch, but played well when available.
My projection looks low, coming out to 4.5 WAR total over the length of the deal. I think he'll be better than that. But even if he hits the average of the comp group, at 10.8 WAR, that is a significant overpay.
I wish him well. If he avoids injury and keeps himself in shape the deal should turn out OK. Chapman at age 31 has the best baserunning of his career. His sprint speed , at 28.7, is as good as it's ever been at an age where most are slowing down. He's stolen 13 bases in 15 attempts, his previous career high was 4. He's a better bet than most to age well. But I would not have signed off on this contract.