Petsilyak Igor
From Moscow, Russia
EMA: 15990408
Common russian riichi rating (CRR)
Rating date April 11, 2026 (latest changes April 9, 2026).
82 place (481.56).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (738.32 * 4.60 * 0.14 + 0 * 3.05 * 0.14 + 177.22 * 3.65 * 0.29 + 42.11 * 3.85 * 0.43 + 910.11 * 3.75 * 0.57 + 258.06 * 3.10 * 0.71 + 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) / (4.60 * 0.14 + 3.05 * 0.14 + 3.65 * 0.29 + 3.85 * 0.43 + 3.75 * 0.57 + 3.10 * 0.71 + 3.05 * 0.71 + 2.45 * 1 + 3.45 * 1 + 3.90 * 1 + 3 * 1 + 3.40 * 1 + 2.30 * 1) = 444.0188406030923
p2 = (578.95 * 3.90 * 1 + 910.11 * 3.75 * 0.57 + 554.05 * 3.40 * 1 + 725.49 * 2.30 * 1) / max_coefficients = 519.0929765886287
score = 444.0188406030923 * 0.5 + 519.0929765886287 * 0.5 = 481.5559085958605
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-04-09 | 83 -> 82 | 478.25 -> 481.56 |
Agari Summer Tournament 2024: 29% -> 14% |
| 2026-04-05 | 79 -> 83 | 495.34 -> 478.25 |
Moscow Riichi 2026: 0% -> 100% |
| 2026-04-04 | 80 -> 79 | 492.42 -> 495.34 |
Riichi over Volga: 43% -> 29% |
| 2026-04-02 | 81 -> 80 | 490.70 -> 492.42 |
Agari Winter Tournament 2025: 86% -> 71% |
| 2026-03-14 | 93 -> 81 | 469.35 -> 490.70 |
"Furin" club tournament: for the anniversary: 0% -> 100% |
| 2026-03-12 | 91 -> 93 | 473.28 -> 469.35 |
X Russian Championship: 29% -> 14% |
| 2026-03-07 | 92 -> 91 | 471.66 -> 473.28 |
Moscow Open Riichi Marathon: 86% -> 71% |
| 2026-03-02 | 93 -> 92 | 471.66 | |
| 2026-03-01 | 95 -> 93 | 467.45 -> 471.66 |
SPB Riichi Open 2024: 57% -> 43% |
| 2026-02-23 | 98 -> 95 | 433.99 -> 467.45 |
White Wolf Cup 2026: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 80 |
|
47/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 2 | 725 |
|
15/52 | 100% | 2.30 | CRR | "Furin" club tournament: for the anniversary | Moscow | |
| 3 | 554 |
|
34/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 4 | 467 |
|
17/31 | 100% | 3.00 | RR | Moscow Open Riichi Marathon 2026 | Moscow | |
| 5 | 579 |
|
25/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 6 | 182 |
|
64/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 7 | 467 |
|
17/31 | 100% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow | |
| 8 | 255 |
|
39/52 | 71% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 9 | 258 |
|
24/32 | 71% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow | |
| 10 | 910 |
|
9/90 | 57% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 11 | 42 |
|
92/96 | 43% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 12 | 177 |
|
66/80 | 29% | 3.65 | RR | Riichi over Volga | Samara | |
| 13 | 0 |
|
52/52 | 14% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 14 | 738 |
|
29/108 | 14% | 4.60 | RR | X Russian Championship | Perm | |
| 15 | 205 |
|
32/40 | 0% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 16 | 103 |
|
97/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 17 | 493 |
|
39/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 18 | 189 |
|
91/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 19 | 733 |
|
21/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |