Gary Sanchez and the Persistent Belief in Small Samples
Perhaps no player in Florida is the object of greater expectations this spring than Gary Sanchez.
Consider: in the fantasy baseball world, only Buster Posey is being drafted earlier at catcher. Generally conservative projection systems forecast that Sanchez will be a star this season. ZiPS pegs Sanchez for 27 homers a 112 wRC+ and a 3.4 WAR season. PECOTA’s 70th percentile outlook has Sanchez recording 33 homers, a .504 slugging mark, and 4.8 wins. And the Fans’ average crowdsourced projection for Sanchez is a .274/.344/.488 slash line and 5.4 WAR season. The Fans believe, in other words, that Sanchez and Bryce Harper are going to produce similar value this season.
Last week, ESPN ran a poll asking respondents to guess how many home runs Sanchez will hit in 2017. Fewer than 10 home runs? That option received 1% of votes. How about 10 to 20 homers — i.e. the range within which he’s resided over each of his first five professional seasons in the minors? That seems like a reasonable wager, right? Only 4% agreed.
The most popular range was 21-30 homers, receiving 44% of votes. Forty-one percent predicted he will slug between 31-40 homers, and 10% think he will hit more than 40.
There’s much to like about Sanchez. This is a player with pedigree, who was regraded as the top catcher in the 2009 international class, and perhaps the second-best bat in that class after Miguel Sano.