Single-match Elo-style illustration
Calculate one result under the displayed logistic formula with a scale of 400 and your chosen K. This does not create tournament pairings or official ratings.
Use this result well
- Inputs that matter
- Player rating, Opponent rating, Chosen K factor, Match result
- Output to expect
- Illustrative updated rating
- Check the units and required inputs before comparing results.
- Keep the assumptions with a copied result so you can reproduce the calculation later.
Related Tools
Tools you might need next
Reduce whole pixel dimensions to an exact width-to-height ratio, preserving portrait or landscape orientation for real layout comparisons.
Calculate audio file size from bitrate and duration. Free online game development calculator with instant, accurate results.
Calculate hitbox area and perimeter for 2D collision detection tuning. Free online game development calculator with instant, accurate results.
Reference & details
How it works
Updated September 2026
How it works
Updated September 2026Entered quantities and terms
Calculate one result under the displayed logistic formula with a scale of 400 and your chosen K. This does not create tournament pairings or official ratings.
Calculation
Expected score E = 1 ÷ (1 + 10^((opponent − player)/400)); updated rating = player + K × (score − E)
Scope and limits
Expected score is not necessarily win probability when draws are possible. No rating floor, rating-difference cap, official rounding or batch update rules are applied. No Swiss draw, seeding list or multiplayer rating is generated.
Updated: September 2026
Example Scenarios
Illustrative inputs only; replace them with your own quantities, quotes or terms.
→ 1,516
FAQ
About Single-match Elo-style illustration
Calculate one result under the displayed logistic formula with a scale of 400 and your chosen K. This does not create tournament pairings or official ratings. Mathematical illustration with a fixed logistic scale of 400.