Tkachenko Ivan
From Sarov, Russia
EMA: 15990417
Common russian riichi rating (CRR)
Rating date Nov. 6, 2023 (latest changes Nov. 6, 2023).
120 place (266.60).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002
p1 = (828.83 * 4.05 * 0.57 + 595.74 * 3.10 * 0.14 + 0 + 0 + 0) / (4.05 * 0.57 + 3.10 * 0.14 + 1 + 1 + 1) = 378.99936774381814
p2 = (828.83 * 4.05 * 0.57 + 595.74 * 3.10 * 0.14) / max_coefficients = 154.20408174803634
score = 378.99936774381814 * 0.5 + 154.20408174803634 * 0.5 = 266.60172474592724
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-06 | 128 -> 120 | 168.93 -> 266.60 |
Kirov Tournament: 14% -> 0% |
| 2021-02-01 | 146 -> 128 | 315.12 -> 168.93 | |
| 2020-02-01 | 146 | 315.12 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 829 |
|
20/112 | 57% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 2 | 596 |
|
20/48 | 14% | 3.10 | RR | Agari team tournament | Moscow | |
| 3 | 673 |
|
19/56 | 0% | 3.30 | RR | Kirov Tournament | Kirov | |
| 4 | 600 |
|
15/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 | Moscow | |
| 5 | 373 |
|
53/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 6 | 298 |
|
34/48 | 0% | 3.10 | RR | Agari team tournament 2019 | Moscow |