I.S. 318 CHESS TEAM

-time National Champions as Featured in the
Award-winning Movie, Brooklyn Castle

ELO Probability Table

The following table shows what the probability of beating an opponent is based on the difference between rating points.


Rating diff Prob win
+8000.99%
+7501.32%
+7001.75%
+6502.32%
+6003.07%
+5504.05%
+5005.32%
+4506.98%
+4009.09%
+35011.77%
+30015.1%
+25019.17%
+20024.03%
+15029.66%
+10035.99%
+5042.85%
050.00%
-5057.15%
-10064.01%
-15070.34%
-20075.97%
-25080.83%
-30084.90%
-35088.23%
-40090.91%
-45093.02%
-50094.68%
-55095.95%
-60096.93%
-65097.68%
-70098.25%
-75098.68%
-80099.01%



Rating diff = difference between your opponent's rating and yours
Prob win = probability of winning

The left column is the difference between your opponent's rating and your own. +100 means that your opponent is rated 100 points higher than you. In this case, you have a 35.99% chance of winning. If your opponent is rated the same, then of course the probability of winning is 50%.

Note that even if you are rated 200 points higher than your opponent, the probability of winning is 76%, which means that you are expected to lose the game one out of every four times you face such an opponent.