Bondarev Alexandr
From Perm, Russia
EMA: 15020044
Common russian riichi rating (CRR)
Rating date Aug. 26, 2023 (latest changes Aug. 26, 2023).
143 place (151.69).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.71 + 2.80 * 1) = 13.642914999999999
p1 = (490.91 * 3.30 * 0.29 + 402.99 * 3.50 * 0.57 + 93.33 * 4.20 * 1 + 0 + 0) / (3.30 * 0.29 + 3.50 * 0.57 + 4.20 * 1 + 1 + 1) = 181.6485484063259
p2 = (402.99 * 3.50 * 0.57 + 490.91 * 3.30 * 0.29 + 93.33 * 4.20 * 1) / max_coefficients = 121.73058323679362
score = 181.6485484063259 * 0.5 + 121.73058323679362 * 0.5 = 151.68956582155977
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-08-26 | 142 -> 143 | 151.69 | |
2023-08-12 | 142 | 149.21 -> 151.69 | |
2023-07-20 | 139 -> 142 | 162.04 -> 149.21 |
Tenpai can't buy happiness: 71% -> 57% |
2023-07-06 | 133 -> 139 | 177.12 -> 162.04 |
Kirov Tournament: 43% -> 29% |
2023-07-05 | 134 -> 133 | 177.12 | |
2023-07-03 | 137 -> 134 | 177.12 | |
2023-06-12 | 138 -> 137 | 174.24 -> 177.12 | |
2023-06-11 | 122 -> 138 | 180.77 -> 174.24 | |
2023-05-20 | 121 -> 122 | 189.80 -> 180.77 |
Tenpai can't buy happiness: 86% -> 71% |
2023-05-06 | 118 -> 121 | 203.87 -> 189.80 |
Kirov Tournament: 57% -> 43% |
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 | 57% | 3.50 | RR | Tenpai can't buy happiness |
3 | 491 |
|
29/56 | 29% | 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 |