Tkachenko Ivan
From Sarov, Russia
EMA: 15990417
Internal rating (RR)
Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).
115 place (168.93).
how we calculated rating score
max_coefficients = (4.05 * 0.86 + 2.90 * 1 + 3.85 * 0.71 + 3.45 * 0.71) = 11.585645
p1 = (373.49 * 4.20 * 0.29 + 600 * 3.20 * 0.43 + 0 + 0 + 0) / (4.20 * 0.29 + 3.20 * 0.43 + 1 + 1 + 1) = 228.14127715176988
p2 = (600 * 3.20 * 0.43 + 373.49 * 4.20 * 0.29) / max_coefficients = 109.71163021135206
score = 228.14127715176988 * 0.5 + 109.71163021135206 * 0.5 = 168.926453681561
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2021-02-01 | 132 -> 115 | 315.12 -> 168.93 | |
| 2020-02-01 | 132 | 315.12 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 600 |
|
15/36 | 43% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
| 2 | 373 |
|
53/84 | 29% | 4.20 | EMA | Haru Shanten 2019 |
| 3 | 298 |
|
34/48 | 0% | 3.10 | RR | Agari team tournament 2019 |