The points exchange chart
Every match moves points from the loser to the winner — the same number both ways. How many depends on the rating gap and on who won: an expected win is worth little, an upset a lot.
| Rating gap | Higher rated wins | Lower rated wins |
|---|---|---|
| 0–12 | 8 | 8 |
| 13–37 | 7 | 10 |
| 38–62 | 6 | 13 |
| 63–87 | 5 | 16 |
| 88–112 | 4 | 20 |
| 113–137 | 3 | 25 |
| 138–162 | 2 | 30 |
| 163–187 | 2 | 35 |
| 188–212 | 1 | 40 |
| 213–237 | 1 | 45 |
| 238+ | 0 | 50 |
Pass 1: adjustments
First, every match is scored on the chart from your current rating. If the event shows that you are clearly better than your rating, it is adjusted before anything else:
- Standard Adjustment: a net gain of 60 or more, or 40 or more with at least two wins worth 20 points or more, raises your rating by that net gain.
- Special Adjustment: a net gain of 150 or more, three or more 50-point wins, or two 50-point wins against opponents 700 or more points above you in total sets your rating from your best wins and worst losses instead.
The final pass
Then every match is scored again on the chart, starting from the adjusted rating. That is why an adjusted rating ends up lower than “old rating + all the points”: the same wins count for less from the higher starting point. Below 100, a player loses at most 3 points a match.
| Your rating | Matches | Adjustment | New |
|---|---|---|---|
| 1500 | won vs 1500 | — | 1508 |
| 1200 | lost vs 1500 | — | 1200 |
| 1800 | lost vs 1400 | — | 1750 |
| 1400 | won vs 1600, won vs 1500 | Standard, to 1460 | 1503 |
What a calculator cannot know
USATT also adjusts underrated and unrated opponents in the same tournament. If one of yours was, the official result differs from what their entered rating gives.
Source
Chart and passes follow USA Table Tennis, “USATT Ratings System Explained” (7 August 2025). Every number on this page is computed with the same rules as the calculator in the app; the official rating is the one USA Table Tennis publishes.
Work out your next rating
Trainoro’s rating calculator runs both passes for you: enter your rating and your opponents’, mark wins and losses, and see the adjustment and your new rating. It runs on your phone, with no login.
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