Rankings / Fotis Giakoub / Planetary Qualifier Nea Erythraia

Fotis Giakoub at Planetary Qualifier Nea Erythraia

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Planetary Premier April 19, 2026 Record 2-2-0
Rating after 1,467
-1
Rating before 1,468 RD 122
Rating after 1,467 RD 115
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 +0.05, Semifinals +0.10, Finals +0.15).

Phase Record Raw Glicko-2 Multiplier Applied Running
Swiss · 4 matches 2-2 -0.9 1.0× -0.9 1467
Total 2-2-0 -0.9 1467
Biggest upset Beat plenoverantes 1375 at 57% odds / surprise +0.43
Costliest loss Lost to CorranHorn25 1403 at 56% odds / surprise -0.56

Matches (4)

Round HRI Opponent Result Odds Game W-L Multiplier Δ Type
▼ R1 1403 CorranHorn25 Loss 56% 0-2 1.0x -27.7 Swiss
▲ R3 1375 plenoverantes Win 57% 2-1 1.0x +20.2 Swiss
R4 1775 Netheniel Loss 27% 1-2 1.0x -13.0 Swiss
R5 1355 Zavaraka Win 59% 2-1 1.0x +19.5 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.