The use of the last letter of Struck instead of the first to denote a strikeout dates back to when Henry Chadwick developed the box score in the late 1850's. Chadwick often used the last letter instead of the first, especially if he considered that letter to be the more prominent one in the word. Chadwick said "the letter K in struck is easier to remember in connection with the word, than S." He also used L for Foul and D for Catch on Bound. Only the K survived into the 20th Century. Source: Paul Dickson's The New Dickson Baseball Dictionary and Alan Schwarz's The Numbers Game. The common view that the K was used because the S was taken (by Sacrifice, Stolen Base, or Single) appears to be erroneous.
Other answers from the community:
A K in baseball is shorthand for a strikeout.
It is a reference to how it is kept in the scorebook. A K is a strikeout. A backwards K is a strikeout looking.
k stands for strikeout looking K stands for strikeout swinging
If you mean in baseball, K is for strikeout, from the letter in the word.
shut out Its a Strikeout SO - Strikeout, SHO - Shutout K - Strikeout, SO - Shut out
It means strikeout looking as opposed to strikeout swinging.
A 'K' is a strikeout where the batter swung and missed at the third strike. A 'k' is a strikeout where the batter took a called third strike.
K represents a strikeout for a pitcher, or by the hitter.
because the word ''strikeout"does not fit on a scorecard.symbols are used for all baseball notation when scoring a game.
Generally Speaking, baseball fans display a small sign at a ball park when the pitcher they are routing for makes a strikeout. The K stands for strikeout.
It signifies a new pitcher's strike out.
No balls called in that strikeout
A 'K' is a strikeout where the batter swung at strike three. A 'k' is a strikeout where the batter did not swing at strike three.
Because all strike outs are prefixed with a "K"
a K is a strikeout where the batter swings at the third strike. a backwards K strike is where the batter is called out without swinging at the third strike
K = strikeout. You might hear an announcer say that a pitcher that struckout 8 batters in a game had 8 Ks.
Looking is backwards. A looking strikeout is subjective to the home plate umpire that night. A swinging strikeout is objective. No doubt that he missed on that third strike; that's a K. K=swinging forward. Backwards K=looking backwards at the umpire and being K'ed
relief (Pit)cher strike outs I have never seen KO used in baseball. K is typically used for pitching stats meaning Strikeout. KO is an abbreviation used in boxing meaning Knock out
KC stands for Called Strikeout in softball and baseball. It can also be marked as a backwards K on the score sheet.
A strikeout is when you either miss the ball or if you swing during a ball.
its usually k