Freestyle. The freestyle stroke involves the use of muscles in your hands -- the thenars -- and arms -- the biceps and triceps -- to help you glide through the water smoothly. In one motion, your entire body is engaged in the forward action of the freestyle move.
The likelihood of a pitcher completing nine innings if he throws an average of 14 pitches or less per inning is reinforced by the totals of the 89 games in which pitchers did actually complete nine innings of work.
Total number of pitches thrown in the game. Number of pitches thrown per inning (15 or below is ideal). Even the short rest between innings is important. Age of the player. Level of conditioning/preparation (long toss, stretching, bullpen sessions, etc.).