Average Pitching Strike to Ball Ratio
Average MLB pitchers throw 62% strikes, and better pitchers throw strikes 65% of the time, or roughly 2:1 strikes to balls.
According to FanGraphs.com
there were 717,053 pitches thrown in MLB during 2009, 269,484 (38%) were called balls, and 447,569 (62%) were called strikes.
The top Strike to-Ball Percentage was 69% thrown by 7 pitchers, 68% by 10 pitchers.
500 pitchers (of the 666 total MLB pitchers) threw strikes at least 60% of the time. 660 pitchers threw at least 48% strikes.
Select relievers (below) threw 4,434 strikes (65%) out of 6,787 total pitches.
Select starters (below) threw 22,179 strikes (65%) out of 34,296 total pitches.
Selected MLB Pitchers - Strikes Pitched 2009