On-Base Percentage Plus Slugging Percentage (OPS)
On-base percentage plus slugging percentage (OPS) is a useful baseball statistic that combines important baseball statistics from baseball scorebooks to gauge a hitter’s true offensive ability. OPS was created to measure a player’s ability to hit for power (Slugging Percentage) together with his ability to get on base (On-Base Percentage). OPS has become a popular Fantasy Baseball statistic.
Before we dive into the formula for OPS, we need to understand it’s two components – On-Base Percentage (OBS) and Slugging Percentage (SLG).
On-Base Percentage (OBP) is calculated as follows:
Hits (H) + Walks (BB) + Hit By Pitches (HBP)
Divided By
At-Bats (AB) + Walks (BB) + Sacrifice Flies (SF) + Hit By Pitches (HBP)
Slugging Percentage (SLG) is calculated as:
Total Bases* (TB) Divided By At-Bats (AB)
* Total Bases is the number of bases a player has gained with hits. A single equates to 1 total base, a double is 2 total bases, a triple is 3 total bases and a home run equals 4 total bases.
On-Base Percentage Plus Slugging Percentage (OPS) is determined by simply adding OBP and SLG together. Players who have an OPS over .9000 are usually considered the top hitters in the league.
OPS = OBP + SLG
Some fantasy baseball players use the On-Base percentage plus Slugging Percentage (OPS) scale to measure the effectiveness of offensive hitters. The scale has seven levels with the best rated A and the lowest rated G.
Hitters with a OPS of ….
.9000 and Above are rated A
.8333 to .8999 are rated B
.7667 to .8333 are rated C
.7000 to .7666 are rated D
.6334 to .6999 are rated E
.5667 to .6333 are rated F
.5666 and Lower are rated G
Fantasy baseball players use OPS as a comparative statistic to help rank the players for the draft, for evaluating possible trades and claiming players off waivers.
sources: wikipedia.com baseball-reference.com mlb.com
