Bondarev Alexandr
From Perm, Russia
EMA: 15020044
Common russian riichi rating (CRR)
Rating date Dec. 22, 2022 (latest changes Dec. 22, 2022).
101 place (235.83).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995
p1 = (490.91 * 3.30 * 0.86 + 402.99 * 3.50 * 1 + 93.33 * 4.20 * 1 + 0 + 0) / (3.30 * 0.86 + 3.50 * 1 + 4.20 * 1 + 1 + 1) = 254.6967177850696
p2 = (402.99 * 3.50 * 1 + 490.91 * 3.30 * 0.86 + 93.33 * 4.20 * 1) / max_coefficients = 216.9681841871844
score = 254.6967177850696 * 0.5 + 216.9681841871844 * 0.5 = 235.83245098612701
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2022-12-19 | 101 | 234.79 -> 235.83 | |
2022-12-18 | 99 -> 101 | 234.79 | |
2022-12-03 | 47 -> 99 | 447.25 -> 234.79 | |
2021-02-01 | 55 -> 47 | 559.66 -> 447.25 | |
2020-02-01 | 55 | 559.66 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 93 |
|
69/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
2 | 403 |
|
41/68 | 100% | 3.50 | RR | Tenpai can't buy happiness |
3 | 491 |
|
29/56 | 86% | 3.30 | RR | Kirov Tournament |
4 | 571 |
|
28/64 | 0% | 3.85 | EMA | Aki Shanten 2019 |
5 | 909 |
|
2/12 | 0% | 1.50 | CRR | Perm Half Marathon |
6 | 478 |
|
13/24 | 0% | 2.20 | RR | URAL Mahjong Battle |
7 | 651 |
|
30/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
8 | 421 |
|
12/20 | 0% | 2.10 | RR | Fuyu Shanten 2019 |
9 | 714 |
|
27/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" |
10 | 239 |
|
55/72 | 0% | 3.85 | EMA | Haru Shanten 2018 |
11 | 519 |
|
14/28 | 0% | 1.70 | RR | Fuyu Shanten |
12 | 563 |
|
32/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten |
13 | 258 |
|
24/32 | 0% | 1.60 | RR | "Summer shanten" tournament, Perm 2017 |