baseball terms

World Series

Two words, capitalized. Fall Classic is acceptable on subsequent reference, but should not be overused.
read more
preseason, postseason

Each one word.
read more
spring training

Two words, lowercase in all instances.
read more
box score

Two words.
read more
slugging percentage

Write out in all instances. Never “SLG” except in box scores.
read more
on-base percentage

Write out in all instances. Never “OBP” except in box scores.
read more
WHIP

Acceptable in all instances (in baseball contexts) when referring to the walks plus hits per innings pitched statistic.
read more
ERA

Acceptable in all instances (in baseball contexts) when referring to the earned run average statistic.
read more
ERA+

Acceptable in all instances (in baseball contexts) when referring to the weighted earned run average statistic, where 100 signifies league average.
read more
OPS+

Acceptable in all instances (in baseball contexts) when referring to the weighted on-base plus slugging statistic, where 100 signifies league average.
read more