Checked out the Cardinals’ stats this AM and saw something you don’t see every day.
Catcher Eli Marrero’s batting average is .320. His on-base percentage is .308.
How can this be, you ask? Every hit increases BA and OBP. Other things push up OBP while nothing else boosts BA. Ergo OBP will always be at least as large as BA? Right? Must be a typo.
Not so. Going to the definitions makes clear what is going on but raises other points.
Batting average = Hits/At Bats
Slugging percentage = (Hits + Walks + Hit by Pitch)/(At Bats + Walks + Hit by Pitch + Sacrifice Flies)
Eli has 8 hits in 25 at bats, has not walked, has not been hit by a pitch, and has 1 sac fly.
Do the math.
To my mind this is just another example of the strange concept known as the sac fly.
First of all why do sac flies even exist? Why aren’t SFs treated like any other failed at bat? They’re not at all like sac hits. On SHs the batter says in effect, “I want to make an out, because by so doing I will advance a team mate closer to home. To that end I will use what skill I have to position the ball in such a way that there will be no play on the base runner. If I succeed I will return to the dugout happy in my out-making ability, prepared to accept high 5’s and fanny pats as my due, for I have increased my team’s chances of scoring, and therefore, of winning.”
The sac fly is different. No batter comes up thinking “OK, time to hit one to the track. I want to get the ball in the air, because otherwise I might get a hit, so I should be upper-cutting, and I don’t want to hit it too far, because there’s the chance it’ll leave the park, so I need to hit the ball just so.”
We recognize the intent behind the SH by not counting it as an AB. We treat the SF the same despite the completely accidental nature of the event.
We rightfully honor the excellent bunter. No one exalts the good sac fly guy. There’s a reason you never hear someone say “Bubba LaCroce is the best sac fly man in the game”.
Then there’s the arbitrary nature of how we apply SF rules. Renteria on 2nd, Edmonds scorches one to right center that gets hauled in. Renteria goes to 3rd on the play. An out for Emonds and his BA and OBP drop. Pujols sends one to the wall in left and Renteria lopes home. Pujols’ BA is unaffected but his OBP goes down. What did Pujols do that Edmonds failed to do? Why should his out be scored differently from Edmonds’?
Who led the majors in sac flies last year? Who’s the lifetime leader? Who knows? Who cares? Count the damn thing for what it is and stop pretending it results from the exercise of a skill.
Then Eli’s OBP would be what it should be, .320.