Bondarev Alexandr

From Perm, Russia

EMA: 15020044

Player page

Internal rating (RR)

Rating date Aug. 12, 2023 (latest changes Aug. 12, 2023).

104 place (155.48).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.71 + 3.50 * 0.57) = 12.842815

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 = 129.31432867326984

score = 181.6485484063259 * 0.5 + 129.31432867326984 * 0.5 = 155.48143853979786

Rating changes

Show

all results
Date Place Points Reason
2023-08-12 104 152.70 -> 155.48
2023-07-20 103 -> 104 163.45 -> 152.70

Tenpai can't buy happiness: 71% -> 57%
2023-07-06 102 -> 103 178.71 -> 163.45

Kirov Tournament: 43% -> 29%
2023-06-12 103 -> 102 175.71 -> 178.71
2023-06-11 86 -> 103 187.12 -> 175.71
2023-05-28 86 185.80 -> 187.12
2023-05-20 86 194.92 -> 185.80

Tenpai can't buy happiness: 86% -> 71%
2023-05-06 86 209.51 -> 194.92

Kirov Tournament: 57% -> 43%
2023-04-19 86 207.78 -> 209.51
2023-03-28 86 206.07 -> 207.78

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 57% 3.50 RR Tenpai can't buy happiness
3 491 2021-11-06 29/56 29% 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