Petsilyak Igor

From Moscow, Russia

EMA: 15990408

Player page

Internal rating (RR)

Rating date Jan. 3, 2025 (latest changes Jan. 3, 2025).

68 place (427.96).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (0 * 3.05 * 1 + 102.80 * 4 * 0.57 + 738.32 * 4.60 * 1 + 177.22 * 3.65 * 1 + 42.11 * 3.85 * 1 + 910.11 * 3.75 * 1) / (3.05 * 1 + 4 * 0.57 + 4.60 * 1 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1) = 370.68102862321575

p2 = (910.11 * 3.75 * 1 + 738.32 * 4.60 * 1 + 177.22 * 3.65 * 1 + 102.80 * 4 * 0.57) / max_coefficients = 485.2359621451105

score = 370.68102862321575 * 0.5 + 485.2359621451105 * 0.5 = 427.95849538416314

Rating changes

Show

all results
Date Place Points Reason
2025-01-03 72 -> 68 426.29 -> 427.96

SPB Riichi Open 2023: 71% -> 57%
2024-12-11 74 -> 72 426.29
2024-11-06 76 -> 74 428.11 -> 426.29

IX Russian Riichi Championship: 14% -> 0%
2024-11-03 80 -> 76 426.59 -> 428.11

SPB Riichi Open 2023: 86% -> 71%
2024-10-13 114 -> 80 277.61 -> 426.59

Moscow Riichi 2024: 0% -> 100%
2024-10-11 115 -> 114 277.61
2024-09-06 113 -> 115 290.78 -> 277.61

IX Russian Riichi Championship: 29% -> 14%
2024-09-03 114 -> 113 284.69 -> 290.78

SPB Riichi Open 2023: 100% -> 86%
2024-09-01 96 -> 114 317.83 -> 284.69

SPB Riichi Open 2024: 0% -> 100%
2024-08-11 96 316.08 -> 317.83

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 910 2024-10-13 9/90 100% 3.75 RR Moscow Riichi 2024
2 42 2024-09-01 92/96 100% 3.85 RR SPB Riichi Open 2024
3 177 2024-08-04 66/80 100% 3.65 RR Riichi over Volga
4 0 2024-06-09 52/52 100% 3.05 RR Agari Summer Tournament 2024
5 738 2024-05-12 29/108 100% 4.60 RR X Russian Championship
6 103 2023-09-03 97/108 57% 4.00 RR SPB Riichi Open 2023
7 493 2022-11-06 39/76 0% 4.20 RR IX Russian Riichi Championship
8 189 2022-06-12 91/112 0% 4.05 RR Moscow Riichi 2022
9 733 2021-11-28 21/76 0% 3.45 RR Saint Petersburg Open 2021