Bondarev Alexandr
From Perm, Russia
EMA: 15020044
Common russian riichi rating (CRR)
Rating date March 14, 2024 (latest changes March 14, 2024).
179 place (51.59).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001
p1 = (402.99 * 3.50 * 0.14 + 93.33 * 4.20 * 0.57 + 0 + 0 + 0) / (3.50 * 0.14 + 4.20 * 0.57 + 1 + 1 + 1) = 72.12505699123564
p2 = (93.33 * 4.20 * 0.57 + 402.99 * 3.50 * 0.14) / max_coefficients = 31.061313868613137
score = 72.12505699123564 * 0.5 + 31.061313868613137 * 0.5 = 51.59318542992439
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-03-10 | 176 -> 179 | 52.37 -> 51.59 | |
2024-03-06 | 176 | 54.68 -> 52.37 |
IX Russian Riichi Championship: 71% -> 57% |
2024-02-25 | 174 -> 176 | 54.68 | |
2024-02-12 | 175 -> 174 | 54.68 | |
2024-01-20 | 171 -> 175 | 73.80 -> 54.68 |
Tenpai can't buy happiness: 29% -> 14% |
2024-01-06 | 170 -> 171 | 74.54 -> 73.80 |
IX Russian Riichi Championship: 86% -> 71% |
2024-01-05 | 171 -> 170 | 74.54 | |
2023-12-19 | 182 -> 171 | 74.54 | |
2023-11-28 | 192 -> 182 | 74.54 | |
2023-11-26 | 184 -> 192 | 74.73 -> 74.54 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 93 |
|
69/76 | 57% | 4.20 | RR | IX Russian Riichi Championship |
2 | 403 |
|
41/68 | 14% | 3.50 | RR | Tenpai can't buy happiness |
3 | 491 |
|
29/56 | 0% | 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 |