In baseball statistics, walk-to-strikeout ratio (BB/K) is a measure of a hitter's plate discipline and knowledge of the strike zone. Generally, a hitter with a good walk-to-strikeout ratio must exhibit enough patience at the plate to refrain from swinging at bad pitches and take a base on balls, but he must also have the ability to recognize pitches within the strike zone and avoid striking out. Joe Morgan and Wade Boggs are two examples of hitters with a good walk-to-strikeout ratio.[ citation needed ] A hit by pitch is not counted statistically as a walk and therefore not counted in the walk-to-strikeout ratio.
The inverse of this, the strikeout-to-walk ratio, is used to compare pitchers. [1]
Best single-season walk-to-strikeout ratios from 1913 to 2011:
Rank | Player | Team | LG | Year | BB | SO | BB/SO |
---|---|---|---|---|---|---|---|
1 | Joe Sewell | NYY | AL | 1932 | 56 | 3 | 18.67 |
2 | Joe Sewell | NYY | AL | 1933 | 71 | 4 | 17.75 |
3 | Joe Sewell | CLE | AL | 1925 | 64 | 4 | 16.00 |
4 | Joe Sewell | CLE | AL | 1929 | 48 | 4 | 12.00 |
5 | Charlie Hollocher | CHC | NL | 1922 | 58 | 5 | 11.60 |
6 | Lou Boudreau | CLE | AL | 1948 | 98 | 9 | 10.89 |
7 | Eddie Collins | CWS | AL | 1925 | 87 | 8 | 10.88 |
8 | Joe Sewell | CLE | AL | 1926 | 65 | 6 | 10.83 |
9 | Eddie Collins | CWS | AL | 1923 | 84 | 8 | 10.50 |
10 | Mickey Cochrane | PHA | AL | 1929 | 69 | 8 | 8.63 |
11 | Joe Sewell | CLE | AL | 1923 | 98 | 12 | 8.17 |
12 | Tommy Holmes | BSN | NL | 1945 | 70 | 9 | 7.78 |
13 | Joe Sewell | NYY | AL | 1931 | 62 | 8 | 7.75 |
14 | Tris Speaker | CLE | AL | 1920 | 97 | 13 | 7.46 |
15 | Joe Sewell | CLE | AL | 1927 | 51 | 7 | 7.29 |
16 | Mickey Cochrane | PHA | AL | 1927 | 50 | 7 | 7.14 |
17 | Tris Speaker | CLE | AL | 1918 | 64 | 9 | 7.11 |
18 | Lou Boudreau | CLE | AL | 1949 | 70 | 10 | 7.00 |
18 | Tris Speaker | CLE | AL | 1922 | 77 | 11 | 7.00 |
In 2018, Jose Ramirez had the best BB/K ratio in the major leagues, at 1.33. [2]
Baseball statistics play an important role in evaluating the progress of a player or team.
A base on balls (BB), also known as a walk, occurs in baseball when a batter receives four pitches that the umpire calls balls, and is in turn awarded first base without the possibility of being called out. The base on balls is defined in Section 2.00 of baseball's Official Rules, and further detail is given in 6.08(a). It is considered a faux pas for a professional player to literally walk to first base; the batter-runner and any advancing runners normally jog on such a play.
In baseball statistics, on-base percentage (OBP), also known as on-base average/OBA, measures how frequently a batter reaches base. It is the ratio of the batter's times-on-base (TOB) to their number of plate appearances. OBP does not credit the batter for reaching base on fielding errors, fielder's choice, dropped/uncaught third strikes, fielder's obstruction, or catcher's interference.
In baseball, the strike zone is the volume of space through which a pitch must pass in order to be called a strike even if the batter does not swing. The strike zone is defined as the volume of space above home plate and between the batter's knees and the midpoint of their torso. Whether a pitch passes through the zone is decided by an umpire, who is generally positioned behind the catcher.
In baseball or softball, a strikeout occurs when a batter accrues three strikes during a time at bat. It usually means the batter is out. A strikeout is a statistic recorded for both pitchers and batters, and is denoted by K in scorekeeping and statistics. A "strikeout looking" — in which the batter does not swing and the third strike is called by the umpire — is usually denoted by a ꓘ.
In baseball and softball, the count refers to the number of balls and strikes a batter has in their current plate appearance. It is usually announced as a pair of numbers, for example, 3-1, with the first number being the number of balls and the second being the number of strikes. An individual pitch may also be referred to by the count prior to its delivery; for example, a pitch thrown with a count of three balls and one strike would be called a "three-one pitch." A count of 1-1 or 2-2 is called even. Zero is commonly pronounced "oh," although a 0-0 count is rarely expressed as such — the count is typically not mentioned until at least one pitch has been thrown. If the count reaches three strikes, the batter strikes out, and if the count reaches four balls, the batter earns a base on balls.
In baseball statistics, strikeout-to-walk ratio (K/BB) is a measure of a pitcher's ability to control pitches, calculated as strikeouts divided by bases on balls.
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