Bondarev Alexandr
From Perm, Russia
EMA: 15020044
Common russian riichi rating (CRR)
Rating date Oct. 21, 2022 (latest changes Oct. 21, 2022).
76 place (260.57).
how we calculated rating score
max_coefficients = (4.05 * 1 + 3.50 * 1 + 3.45 * 1 + 3.30 * 1) = 14.3
p1 = (490.91 * 3.30 * 1 + 402.99 * 3.50 * 1 + 0 + 0 + 0) / (3.30 * 1 + 3.50 * 1 + 1 + 1 + 1) = 309.22959183673464
p2 = (490.91 * 3.30 * 1 + 402.99 * 3.50 * 1) / max_coefficients = 211.9195804195804
score = 309.22959183673464 * 0.5 + 211.9195804195804 * 0.5 = 260.57458612815753
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2022-10-14 | 47 -> 76 | 447.25 -> 260.57 | |
| 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 | 403 |
|
41/68 | 100% | 3.50 | RR | Tenpai can't buy happiness |
| 2 | 491 |
|
29/56 | 100% | 3.30 | RR | Kirov Tournament |
| 3 | 571 |
|
28/64 | 0% | 3.85 | EMA | Aki Shanten 2019 |
| 4 | 909 |
|
2/12 | 0% | 1.50 | CRR | Perm Half Marathon |
| 5 | 478 |
|
13/24 | 0% | 2.20 | RR | URAL Mahjong Battle |
| 6 | 651 |
|
30/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
| 7 | 421 |
|
12/20 | 0% | 2.10 | RR | Fuyu Shanten 2019 |
| 8 | 714 |
|
27/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" |
| 9 | 239 |
|
55/72 | 0% | 3.85 | EMA | Haru Shanten 2018 |
| 10 | 519 |
|
14/28 | 0% | 1.70 | RR | Fuyu Shanten |
| 11 | 563 |
|
32/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten |
| 12 | 258 |
|
24/32 | 0% | 1.60 | RR | "Summer shanten" tournament, Perm 2017 |