Rating Difference Explorer

How much does an Elo gap really matter? Drag the handles and see.

Difference
+150
Expected Score (A)
0.703
A wins
56.4%
B wins
15.8%

Rating Handles

Drag either player — the distribution reacts continuously

Player A1800
Player B1650
A wins 56.4%draw 27.8%B wins 15.8%

Expected Score Curve

W_e across the full ±800 difference range · marker = current matchup