Petsilyak Igor

From Moscow, Russia

EMA: 15990408

Player page

Common russian riichi rating (CRR)

Rating date Oct. 18, 2025 (latest changes Oct. 13, 2025).

105 place (430.59).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835

p1 = (205.13 * 2.90 * 0.14 + 738.32 * 4.60 * 0.57 + 0 * 3.05 * 0.57 + 177.22 * 3.65 * 0.71 + 910.11 * 3.75 * 0.86 + 258.06 * 3.10 * 1 + 254.90 * 3.05 * 1 + 466.67 * 2.45 * 1 + 181.82 * 3.45 * 1) / (2.90 * 0.14 + 4.60 * 0.57 + 3.05 * 0.57 + 3.65 * 0.71 + 3.75 * 0.86 + 3.10 * 1 + 3.05 * 1 + 2.45 * 1 + 3.45 * 1) = 386.6771064406756

p2 = (910.11 * 3.75 * 0.86 + 738.32 * 4.60 * 0.57 + 466.67 * 2.45 * 1 + 258.06 * 3.10 * 1) / max_coefficients = 474.51137939913593

score = 386.6771064406756 * 0.5 + 474.51137939913593 * 0.5 = 430.59424291990575

Rating changes

Show

all results
Date Place Points Reason
2025-10-13 97 -> 105 445.90 -> 430.59

Moscow Riichi 2024: 100% -> 86%
2025-10-09 98 -> 97 442.22 -> 445.90

Agari Summer Tournament 2024: 71% -> 57%
2025-10-04 98 439.91 -> 442.22

Riichi over Volga: 86% -> 71%
2025-09-30 99 -> 98 439.91
2025-09-26 99 438.38 -> 439.91

Autumn Agari tournament: 29% -> 14%
2025-09-12 96 -> 99 459.40 -> 438.38

X Russian Championship: 71% -> 57%
2025-09-05 97 -> 96 459.40
2025-09-03 98 -> 97 456.18 -> 459.40

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 102 -> 98 449.26 -> 456.18

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 87 -> 102 465.07 -> 449.26

SPB Riichi Open 2025: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 182 2025-08-31 64/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
2 467 2025-07-13 17/31 100% 2.45 RR Agari Summer Tournament 2025 Moscow
3 255 2025-02-02 39/52 100% 3.05 RR Agari Winter Tournament 2025 Moscow
4 258 2025-01-07 24/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
5 910 2024-10-13 9/90 86% 3.75 RR Moscow Riichi 2024 Moscow
6 42 2024-09-01 92/96 86% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 177 2024-08-04 66/80 71% 3.65 RR Riichi over Volga Samara
8 0 2024-06-09 52/52 57% 3.05 RR Agari Summer Tournament 2024 Moscow
9 738 2024-05-12 29/108 57% 4.60 RR X Russian Championship Perm
10 205 2023-11-26 32/40 14% 2.90 CRR Autumn Agari tournament Moscow
11 103 2023-09-03 97/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
12 493 2022-11-06 39/76 0% 4.20 RR IX Russian Riichi Championship Perm
13 189 2022-06-12 91/112 0% 4.05 RR Moscow Riichi 2022 Moscow
14 733 2021-11-28 21/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg