The highest possible bowling score is 300, so a good bowling score is one that is as close to 300 as possible. Typical good bowling scores for professionals and league players are in the low 200s.
Experienced league bowlers tend to bowl between 205 and 225 per game, with professionals slightly higher at 230 to 250. Bowling skill, however, is not measured by a high score on one particular game, but by the average of the bowler's scores over time.
It is very difficult to bowl a perfect game. The highest average score for a professional bowler in 2009 was 222.34 for Bill O'Neil, according to Bleacher Report.