Bondarev Alexandr

From Perm, Russia

EMA: 15020044

Player page

Internal rating (RR)

Rating date Jan. 28, 2023 (latest changes Jan. 28, 2023).

87 place (225.45).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.10 * 0.86) = 14.40701

p1 = (490.91 * 3.30 * 0.71 + 402.99 * 3.50 * 1 + 93.33 * 4.20 * 1 + 0 + 0) / (3.30 * 0.71 + 3.50 * 1 + 4.20 * 1 + 1 + 1) = 245.46515398695715

p2 = (402.99 * 3.50 * 1 + 490.91 * 3.30 * 0.71 + 93.33 * 4.20 * 1) / max_coefficients = 205.42916260903547

score = 245.46515398695715 * 0.5 + 205.42916260903547 * 0.5 = 225.4471582979963

Rating changes

Show

all results
Date Place Points Reason
2023-01-28 87 223.35 -> 225.45
2023-01-06 87 235.83 -> 223.35

Kirov Tournament: 86% -> 71%
2022-12-19 87 234.79 -> 235.83
2022-11-28 87 232.31 -> 234.79
2022-11-06 65 -> 87 260.57 -> 232.31

IX Russian Riichi Championship: 0% -> 100%

Kirov Tournament: 100% -> 86%
2022-06-12 45 -> 65 268.11 -> 260.57
2022-05-13 63 -> 45 362.94 -> 268.11
2021-02-01 59 -> 63 535.05 -> 362.94
2020-02-01 59 535.05

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 93 2022-11-06 69/76 100% 4.20 RR IX Russian Riichi Championship
2 403 2022-03-20 41/68 100% 3.50 RR Tenpai can't buy happiness
3 491 2021-11-06 29/56 71% 3.30 RR Kirov Tournament
4 571 2019-11-04 28/64 0% 3.85 EMA Aki Shanten 2019
5 478 2019-06-16 13/24 0% 2.20 RR URAL Mahjong Battle
6 651 2019-05-04 30/84 0% 4.20 EMA Haru Shanten 2019
7 421 2019-02-10 12/20 0% 2.10 RR Fuyu Shanten 2019
8 714 2018-11-18 27/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
9 239 2018-05-01 55/72 0% 3.85 EMA Haru Shanten 2018
10 519 2018-02-17 14/28 0% 1.70 RR Fuyu Shanten
11 563 2017-11-12 32/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
12 258 2017-06-03 24/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017