Free chess calculator
Add wins, draws and losses and watch the curve. It shows the thing a single number hides: a streak pays less the higher it takes you, and settles at the level your results actually earn.
The level you're playing against across the run.
Notice the shape: beating the same opponents pays a little less each time as your rating rises above theirs, and losses cost more. A streak doesn't compound forever — it bends back toward the level your results actually justify.
Because each win lifts you above your opponents, so the formula expects the next win more and pays less for it. Rating is self-correcting: it converges on the level your score rate justifies rather than climbing forever.
Slightly. Because the change depends on your current rating, an early win (from a lower rating) is worth a touch more than the same win later. Over a run the effect is small, but the curve shows it.
Educational chess content. Rating math uses the standard Elo model; results are estimates and vary by federation, pool and time control.