Zarezin Ivan

From Yekaterinburg, Russia

EMA: 15020003

Player page

Internal rating (RR)

Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).

63 place (338.28).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001

p1 = (358.21 * 3.50 * 0.29 + 440 * 4.20 * 0.71 + 540.23 * 3.75 * 1 + 0 + 0) / (3.50 * 0.29 + 4.20 * 0.71 + 3.75 * 1 + 1 + 1) = 379.90525137922936

p2 = (540.23 * 3.75 * 1 + 440 * 4.20 * 0.71 + 358.21 * 3.50 * 0.29) / max_coefficients = 296.661271242979

score = 379.90525137922936 * 0.5 + 296.661271242979 * 0.5 = 338.2832613111042

Rating changes

Show

all results
Date Place Points Reason
2024-01-06 65 -> 63 343.31 -> 338.28

IX Russian Riichi Championship: 86% -> 71%
2023-12-19 67 -> 65 343.31
2023-12-12 67 336.89 -> 343.31
2023-11-28 72 -> 67 336.89
2023-11-20 72 342.87 -> 336.89

Tenpai can't buy happiness: 43% -> 29%
2023-11-06 72 347.25 -> 342.87

IX Russian Riichi Championship: 100% -> 86%
2023-10-19 75 -> 72 347.25
2023-10-12 76 -> 75 341.22 -> 347.25
2023-09-20 75 -> 76 346.69 -> 341.22

Tenpai can't buy happiness: 57% -> 43%
2023-09-06 76 -> 75 346.69

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 540 2023-06-11 41/88 100% 3.75 RR Money can not buy tenpai
2 440 2022-11-06 43/76 71% 4.20 RR IX Russian Riichi Championship
3 358 2022-03-20 44/68 29% 3.50 RR Tenpai can't buy happiness
4 984 2019-11-04 2/64 0% 3.85 EMA Aki Shanten 2019
5 174 2019-06-16 20/24 0% 2.20 RR URAL Mahjong Battle
6 84 2019-05-04 77/84 0% 4.20 EMA Haru Shanten 2019
7 473 2019-01-05 30/56 0% 3.00 EMA Snow Dragon
8 363 2018-11-18 59/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
9 704 2018-08-11 9/28 0% 1.70 RR Natsu Shanten 2018
10 479 2018-05-01 38/72 0% 3.85 EMA Haru Shanten 2018
11 366 2017-11-12 46/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
12 261 2017-07-30 18/24 0% 2.20 RR Summer EMA rules tournament 2017
13 741 2017-06-11 8/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017
14 111 2017-03-25 25/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
15 696 2017-01-29 8/24 0% 2.20 RR The first tournament of 2017
16 543 2017-01-05 17/36 0% 2.50 RR Quick discard 2017
17 600 2016-07-17 7/16 0% 1.60 RR "Legendary player" riichi mahjong tournament 2016
18 484 2016-05-03 17/32 0% 2.40 RR Siberia Cup 2016
19 384 2016-03-13 62/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
20 947 2016-02-07 2/20 0% 1.70 RR "Tiles, doras, 2 renchans"
21 478 2015-12-05 13/24 0% 1.80 RR 4 riichi mahjong tournament 2015
22 667 2015-10-18 18/52 0% 2.90 EMA Russian Open Riichi Championship 2015
23 421 2015-09-27 12/20 0% 1.70 RR Plitochka
24 1000 2015-08-29 1/16 0% 1.60 RR 3 riichi mahjong tournament 2015
25 333 2015-05-16 11/16 0% 1.60 RR 2 autumn riichi mahjong tournament 2015
26 889 2015-02-22 4/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015
27 895 2014-10-25 3/20 0% 1.30 RR Autumn riichi mahjong tournament 2014
28 158 2014-06-08 17/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017