Tkachenko Maria
From Sarov, Russia
EMA: 15990422
Common russian riichi rating (CRR)
Rating date Jan. 5, 2025 (latest changes Jan. 5, 2025).
94 place (399.15).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (325.84 * 3.75 * 1 + 981.31 * 4.60 * 1 + 63.16 * 3.85 * 1 + 0 + 0) / (3.75 * 1 + 4.60 * 1 + 3.85 * 1 + 1 + 1) = 421.06267605633803
p2 = (981.31 * 4.60 * 1 + 325.84 * 3.75 * 1 + 63.16 * 3.85 * 1) / max_coefficients = 377.22965299684546
score = 421.06267605633803 * 0.5 + 377.22965299684546 * 0.5 = 399.14616452659175
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-01-05 | 93 -> 94 | 399.15 | |
| 2025-01-03 | 95 -> 93 | 399.15 | |
| 2024-12-27 | 96 -> 95 | 399.15 | |
| 2024-12-18 | 97 -> 96 | 399.15 | |
| 2024-12-11 | 99 -> 97 | 399.15 | |
| 2024-11-05 | 103 -> 99 | 399.15 | |
| 2024-11-04 | 102 -> 103 | 399.15 | |
| 2024-11-03 | 103 -> 102 | 399.15 | |
| 2024-10-27 | 102 -> 103 | 399.15 | |
| 2024-10-25 | 101 -> 102 | 399.15 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 326 |
|
61/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 2 | 63 |
|
90/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 3 | 981 |
|
3/108 | 100% | 4.60 | RR | X Russian Championship |
| 4 | 144 |
|
96/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |
| 5 | 979 |
|
2/48 | 0% | 3.10 | RR | Agari team tournament |
| 6 | 709 |
|
17/56 | 0% | 3.30 | RR | Kirov Tournament |
| 7 | 0 |
|
36/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
| 8 | 193 |
|
68/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |