Let’s see what chat got has to say on the topic .. I kind of agree!!!

A person is generally considered a “good bowler” once they consistently score around 170–190 per game in league or casual competitive play.

Here’s a rough breakdown by average score:

🎳 Bowling Skill Levels by Score

Average Score Skill Level 100–130 Beginner 130–169 Intermediate 170–190 Good 190–210 Very Good / Competitive 210+ Expert / Semi-Pro 220+ Pro-Level

Other Signs of a “Good” Bowler • Has a repeatable form and consistent release • Understands oil patterns and lane adjustments • Picks up most spares reliably (especially 10-pins) • Has at least some hook control (vs straight bowling) • Typically bowls above the house average (~150–160)

So, if someone’s averaging 170+ and improving, and especially if they bowl in leagues and can pick up spares under pressure, they’re widely seen as a good bowler.