Simply put, a slash line is the following:
Batting Average / On-Base Percentage / Slugging Percentage
It is called a slash line since the statistics are separated by slashes. See? Simple.
Formulas to Calcluate Each Component of a SLASH:
- Batting Average (AVG) = H / AB
- On-Base Percentage (OBP) = H + BB + HBP / AB + BB +HBP + SF
- Takes into account HITS & WALKS (BB)
- After about 500 plate appearances, a player’s OBP is a good predictor of what their future OBP will be. Prior to 500 PA’s it is tough to hang your hat on
- Slugging Percentage (SLG) = TB / AB
- SLG and Isolated Power (ISO) are both good measures of a hitter’s ability to log extra bases (i.e. their power).
Generally speaking, an elite slash looks like this (or higher):
.300 / .400 / .500
- Only 5 Brewers have had slash lines greater than .300/.400/.500
- Yelich 2019: .329 / .429 / .671 (Led League in EVERY CATEGORY)
- Yelich 2018: .326 / .402 / .598 (NL MVP)
- Nilsson 1996: .331 / .407 / .525
- Molitor 1987: .353 / .438 / .566 (Silver Slugger)
- Lezcano 1979: .321 / .414 / .573
NOTE: An On-Base Plus Slugging Percentage (OPS) Percentage is calcualted simply by adding the last two components of the slash:
OPS = On-Base Percentage + Slugging Percentage
A FULL EXPLANATION of OPS & OPS+ can be found by clicking THIS link!