Elo Calculator
Official AREENA Elo & Skill Rating Simulation Engine (FIDE / STT / Swiss Tournament Model)
A
Player / Team A
Current Rating
600 (R9)1500 (C8)2800 (A20)
Projected: 1516
+16 pts
B
Player / Team B
Current Rating
600 (R9)1500 (C8)2800 (A20)
Projected: 1484
-16 pts
Match Parameters & Outcome
How AREENA Calculates Rating Adjustments
1. Win Expectancy:
E_A = 1 / (1 + 10^((R_B - R_A) / 400)) = 50.00%
E_B = 1 / (1 + 10^((R_A - R_B) / 400)) = 50.00%
2. Delta Exchange:
Δ R_A = 32 × (1 - 0.500) = +16
Δ R_B = 32 × (0 - 0.500) = -16

