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How Are Tennis Rankings Calculated?
Traditional tennis world rankings for ATP and WTA athletes use a 52-week point system. Players are ranked after earning official points for their performance results in tournaments. These points last for a year, and the rankings update weekly.
The official ATP and WTA rankings recognize long-term performance, rewarding a player’s year-long record. Unfortunately, this approach isn’t timely or accurate enough to suit sports betting.
This is where Dimers’ tennis ranking enters the group chat.
Bettors need insights on who’s actually playing better right now. Our system includes more than wins or losses. We factor in recent performance, opponent strength, surface specialty, and other match-level data sets.
Our predictive power ratings are a more accurate ranking model specifically designed for betting. We calculate a true performance index for every ATP and WTA player—updated daily.
Smarter Tennis Ranking Built for Betting
Think of the official ATP/WTA rankings as a historical scoreboard. It’s designed to track player performance. But it’s not a reliable source for sports betting insights. This point system exclusively tracks past achievements. It doesn’t look forward.
Dimers’ tennis rankings project what's ahead. It’s a future-focused power index designed to predict upcoming performance, purpose-built by data scientists and sports betting experts.
The official rankings answer how many times a player has won in past tournaments. Dimers’ power rating system answers a different question: Who will win when these two players meet today?
Our proprietary model provides answers by simulating thousands of matchups and factoring in the following elements:
Recent player form and match results.
Strength of schedule, including ranking and form of opponents faced.
Performance on a particular surface (e.g., clay, grass, hard court).
Predictive rankings produced by machine learning models.
Dimers Tennis World Rankings vs. Official ATP/WTA Rankings
Sometimes numbers tell a different story. See for yourself how the Dimers model ranks key players compared to the official ATP and WTA tour standings as of 2025:
| Player | Dimers Rank | Official Rank | Difference |
| Jannik Sinner | 4 | 1 | -3 |
| Daniil Medvedev | 3 | 14 | +11 |
| Aryna Sabalenka | 2 | 1 | -1 |
| Carlos Alcaraz | 1 | 2 | +1 |
| Iga Swiatek | 1 | 3 | +2 |
| Holger Rune | 7 | 9 | +2 |
How to Use Our Rankings to Make Better Bets
Place smarter bets by combining our custom top-ranked players with data-driven predictions for today’s tennis matchups.
Identify mismatches: look for matches where one player’s ranking is significantly higher than their opponent’s, despite the official ATP or WTA ranking.
Cross-check likelihoods: use our tennis predictions to see how top-ranked players are projected to perform today.
Find +EV plays: search tennis best bets to uncover model-identified wagers with the highest betting value.
Track trends: monitor ranking shifts over time to spot players gaining momentum before the market catches on.
For more insights on how to make smart tennis bets, read our guide on how tennis odds work.