The objective community-ranked tier list for Best onsen in San Francisco. Elo calculated from 198 votes. Vote to change rankings in real-time, create your own list, or suggest items!
Unlike manual lists, this hierarchy is powered by the Elo rating system—the same algorithm used to rank professional chess players.
Every time a user votes, the relative strength of each item is re-calculated. This ensures that S-Tier isn't just an opinion; it's a statistically significant reflection of the 198 community comparisons made so far.
