Google's local ranking algorithm weighs three broad factors: relevance, distance, and prominence. Reviews feed directly into prominence. A restaurant with 400 reviews and a 4.3-star average will almost always outrank a competitor with 40 reviews and a 4.7-star average in a competitive market—because Google interprets review volume and recency as signals of real-world activity.
That's not speculation. Google's own documentation acknowledges that review count and score influence local rankings. What most restaurant owners don't realize is that response rate matters too. When you respond to reviews—positive or negative—Google sees an active, engaged business. That activity signal reinforces your local presence.
Beyond rankings, consider the decision-making chain: a diner searches "Italian restaurant near me," sees your listing, and immediately scans your star rating and most recent reviews before clicking anything. Industry benchmarks suggest most diners read at least a few reviews before making a reservation or walking in. Your reputation is the first sales conversation you're having with every potential guest—and it's happening without you in the room.
Yelp and TripAdvisor operate their own algorithms and serve different intent profiles. Yelp skews toward urban, discovery-mode diners. TripAdvisor is heavily weighted toward travelers and out-of-town visitors. Google Maps reviews influence the widest audience because they appear inline in search results. A complete reputation strategy accounts for all three platforms, but Google should be your priority if you're working with limited time.
The practical takeaway: reputation management is not separate from your restaurant SEO strategy. It is part of it. The restaurants that treat reviews as an operational metric—not just a marketing vanity metric—are the ones that hold Map Pack positions consistently.