Rubanov Matvei
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).
54 place (555.52).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (548.39 * 3.10 * 1 + 352.94 * 3.05 * 1 + 129.03 * 2.40 * 1 + 736.84 * 1.50 * 1 + 533.33 * 2 * 1 + 933.33 * 2.45 * 1 + 623.38 * 3.45 * 1 + 842.11 * 2.25 * 1) / (3.10 * 1 + 3.05 * 1 + 2.40 * 1 + 1.50 * 1 + 2 * 1 + 2.45 * 1 + 3.45 * 1 + 2.25 * 1) = 573.769306930693
p2 = (933.33 * 2.45 * 1 + 623.38 * 3.45 * 1 + 842.11 * 2.25 * 1 + 548.39 * 3.10 * 1) / max_coefficients = 537.2615384615384
score = 573.769306930693 * 0.5 + 537.2615384615384 * 0.5 = 555.5154226961157
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-07 | 73 -> 54 | 512.29 -> 555.52 |
Winter Hatiko: 0% -> 100% |
| 2025-12-06 | 72 -> 73 | 512.29 | |
| 2025-12-01 | 71 -> 72 | 512.29 | |
| 2025-11-30 | 69 -> 71 | 512.29 | |
| 2025-11-22 | 68 -> 69 | 512.29 | |
| 2025-11-12 | 69 -> 68 | 512.29 | |
| 2025-11-04 | 68 -> 69 | 523.30 -> 512.29 | |
| 2025-11-01 | 69 -> 68 | 522.42 -> 523.30 | |
| 2025-10-25 | 70 -> 69 | 522.42 | |
| 2025-10-22 | 71 -> 70 | 522.42 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 842 |
|
4/20 | 100% | 2.25 | RR | Winter Hatiko | Korolyov | |
| 2 | 623 |
|
30/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 3 | 933 |
|
🥉 | 3/31 | 100% | 2.45 | RR | Agari Summer Tournament 2025 | Moscow |
| 4 | 533 |
|
8/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 5 | 737 |
|
6/20 | 100% | 1.50 | CRR | HaTiKo | Korolyov | |
| 6 | 129 |
|
28/32 | 100% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 7 | 353 |
|
34/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 8 | 548 |
|
15/32 | 100% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow |