Bondarev Alexandr

From Perm, Russia

EMA: 15020044

Player page

Internal rating (RR)

Rating date March 10, 2024 (latest changes March 10, 2024).

113 place (52.18).

max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 4.20 * 0.57) = 13.19988

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 = 32.23817186216844

score = 72.12505699123564 * 0.5 + 32.23817186216844 * 0.5 = 52.18161442670204

Rating changes

Show

all results
Date Place Points Reason
2024-03-10 103 -> 113 54.88 -> 52.18
2024-03-06 103 57.26 -> 54.88

IX Russian Riichi Championship: 71% -> 57%
2024-02-12 104 -> 103 56.33 -> 57.26
2024-01-20 103 -> 104 76.13 -> 56.33

Tenpai can't buy happiness: 29% -> 14%
2024-01-06 103 76.85 -> 76.13

IX Russian Riichi Championship: 86% -> 71%
2023-12-19 116 -> 103 76.85
2023-12-12 116 75.66 -> 76.85
2023-11-28 127 -> 116 75.66
2023-11-20 126 -> 127 92.47 -> 75.66

Tenpai can't buy happiness: 43% -> 29%
2023-11-06 59 -> 126 362.94 -> 92.47

Kirov Tournament: 14% -> 0%

IX Russian Riichi Championship: 100% -> 86%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 93 2022-11-06 69/76 57% 4.20 RR IX Russian Riichi Championship Perm
2 403 2022-03-20 41/68 14% 3.50 RR Tenpai can't buy happiness Perm
3 491 2021-11-06 29/56 0% 3.30 RR Kirov Tournament Kirov
4 571 2019-11-04 28/64 0% 3.85 EMA Aki Shanten 2019 Perm
5 478 2019-06-16 13/24 0% 2.20 RR URAL Mahjong Battle Yekaterinburg
6 651 2019-05-04 30/84 0% 4.20 EMA Haru Shanten 2019 Perm
7 421 2019-02-10 12/20 0% 2.10 RR Fuyu Shanten 2019 Perm
8 714 2018-11-18 27/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
9 239 2018-05-01 55/72 0% 3.85 EMA Haru Shanten 2018 Perm
10 519 2018-02-17 14/28 0% 1.70 RR Fuyu Shanten Perm
11 563 2017-11-12 32/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
12 258 2017-06-03 24/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017 Perm