Petsilyak Igor

From Moscow, Russia

EMA: 15990408

Player page

Common russian riichi rating (CRR)

Rating date May 22, 2026 (latest changes May 19, 2026).

88 place (464.27).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (0 * 3.05 * 0.14 + 177.22 * 3.65 * 0.29 + 42.11 * 3.85 * 0.29 + 910.11 * 3.75 * 0.43 + 258.06 * 3.10 * 0.57 + 254.90 * 3.05 * 0.71 + 466.67 * 2.45 * 1 + 181.82 * 3.45 * 1 + 578.95 * 3.90 * 1 + 466.67 * 3 * 1 + 554.05 * 3.40 * 1 + 725.49 * 2.30 * 1) / (3.05 * 0.14 + 3.65 * 0.29 + 3.85 * 0.29 + 3.75 * 0.43 + 3.10 * 0.57 + 3.05 * 0.71 + 2.45 * 1 + 3.45 * 1 + 3.90 * 1 + 3 * 1 + 3.40 * 1 + 2.30 * 1) = 438.77938714061537

p2 = (578.95 * 3.90 * 1 + 554.05 * 3.40 * 1 + 725.49 * 2.30 * 1 + 910.11 * 3.75 * 0.43) / max_coefficients = 489.76969696969695

score = 438.77938714061537 * 0.5 + 489.76969696969695 * 0.5 = 464.2745420551562

Rating changes

Show

all results
Date Place Points Reason
2026-05-17 87 -> 88 464.27
2026-05-15 88 -> 87 464.27
2026-05-14 89 -> 88 464.27
2026-05-12 88 -> 89 467.88 -> 464.27

X Russian Championship: 14% -> 0%
2026-05-11 87 -> 88 467.88
2026-05-07 89 -> 87 466.38 -> 467.88

Moscow Open Riichi Marathon: 71% -> 57%
2026-05-03 90 -> 89 464.74 -> 466.38
2026-05-02 91 -> 90 464.74
2026-05-01 95 -> 91 460.84 -> 464.74

SPB Riichi Open 2024: 43% -> 29%
2026-04-19 90 -> 95 460.84

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 80 2026-04-05 47/51 100% 3.10 RR Moscow Riichi 2026 Moscow
2 725 2026-03-14 15/52 100% 2.30 CRR "Furin" club tournament: for the anniversary Moscow
3 554 2026-02-23 34/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
4 467 2026-01-07 17/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
5 579 2025-11-04 25/58 100% 3.90 RR XI Russian Championship Moscow
6 182 2025-08-31 64/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
7 467 2025-07-13 17/31 100% 2.45 RR Agari Summer Tournament 2025 Moscow
8 255 2025-02-02 39/52 71% 3.05 RR Agari Winter Tournament 2025 Moscow
9 258 2025-01-07 24/32 57% 3.10 RR Moscow Open Riichi Marathon Moscow
10 910 2024-10-13 9/90 43% 3.75 RR Moscow Riichi 2024 Moscow
11 42 2024-09-01 92/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
12 177 2024-08-04 66/80 29% 3.65 RR Riichi over Volga Samara
13 0 2024-06-09 52/52 14% 3.05 RR Agari Summer Tournament 2024 Moscow
14 738 2024-05-12 29/108 0% 4.60 RR X Russian Championship Perm
15 205 2023-11-26 32/40 0% 2.90 CRR Autumn Agari tournament Moscow
16 103 2023-09-03 97/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
17 493 2022-11-06 39/76 0% 4.20 RR IX Russian Riichi Championship Perm
18 189 2022-06-12 91/112 0% 4.05 RR Moscow Riichi 2022 Moscow
19 733 2021-11-28 21/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg