Rankings / Arthur Russo / Planetary Qualifier São Paulo

Arthur Russo at Planetary Qualifier São Paulo

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Planetary Premier April 18, 2026 Record 4-3-0
Rating after 1,661
-6
Rating before 1,666 RD 75
Rating after 1,661 RD 72
Effective multiplier 1.0x delta-weighted

// rating math · glicko-2 phase replay

How this rating change was computed

Glicko-2 doesn’t reward record — it rewards surprise. Winning a match the system expected you to win is worth almost nothing. Losing one is expensive. Losing to someone rated below you costs the most. The Planetary tier multiplier (1.0×) amplifies every gain and every loss. Top-cut rounds add more on top (Quarterfinals +0.15, Semifinals +0.25, Finals +0.35).

Phase Record Raw Glicko-2 Multiplier Applied Running
Swiss · 7 matches 4-3 -5.7 1.0× -5.7 1661
Total 4-3-0 -5.7 1661
Biggest upset Beat Coletta 1592 at 58% odds / surprise +0.42
Costliest loss Lost to Fabianno Xavier 1500 at 65% odds / surprise -0.65

Matches (7)

Round HRI Opponent Result Odds Game W-L Multiplier Type
R1 1759 Felipe Abreu Loss 41% 1-2 1.15x Swiss
▼ R2 1500 Fabianno Xavier Loss 65% 1-2 1.15x Swiss
R3 1584 Fredao Win 58% 2-0 1.15x Swiss
R4 1324 0left Win 79% 2-0 1.15x Swiss
R5 1351 WallaceErom Win 78% 2-1 1.15x Swiss
▲ R6 1592 Coletta Win 58% 2-0 1.15x Swiss
R7 1622 JARS_Marcelo Loss 55% 0-2 1.15x Swiss

Per-match multipliers reflect what the engine applied at the time this snapshot was recorded. The Effective Multiplier above is a delta-weighted average across all phases — Finals matches swing the headline more than Swiss rounds when they produced bigger rating changes. How it works.