Zarezin Ivan

From Yekaterinburg, Russia

EMA: 15020003

Player page

Internal rating (RR)

Rating date Dec. 21, 2024 (latest changes Dec. 11, 2024).

39 place (556.75).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (540.23 * 3.75 * 0.43 + 401.87 * 4.60 * 1 + 808.51 * 2.80 * 1 + 873.42 * 3.65 * 1 + 0) / (3.75 * 0.43 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 1) = 598.1204122352597

p2 = (873.42 * 3.65 * 1 + 808.51 * 2.80 * 1 + 401.87 * 4.60 * 1 + 540.23 * 3.75 * 0.43) / max_coefficients = 515.3741324921135

score = 598.1204122352597 * 0.5 + 515.3741324921135 * 0.5 = 556.7472723636865

Rating changes

Show

all results
Date Place Points Reason
2024-12-11 38 -> 39 564.78 -> 556.75

Money can not buy tenpai: 57% -> 43%
2024-11-06 35 -> 38 582.99 -> 564.78

IX Russian Riichi Championship: 14% -> 0%
2024-11-03 36 -> 35 582.99
2024-10-13 31 -> 36 588.52 -> 582.99
2024-10-11 31 596.12 -> 588.52

Money can not buy tenpai: 71% -> 57%
2024-09-06 31 592.32 -> 596.12

IX Russian Riichi Championship: 29% -> 14%
2024-09-03 32 -> 31 582.32 -> 592.32
2024-09-01 27 -> 32 596.53 -> 582.32
2024-08-11 27 601.44 -> 596.53

Money can not buy tenpai: 86% -> 71%
2024-08-04 54 -> 27 463.32 -> 601.44

Riichi over Volga: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 873 2024-08-04 11/80 100% 3.65 RR Riichi over Volga
2 809 2024-07-14 10/48 100% 2.80 RR Guardian of the Winds
3 402 2024-05-12 65/108 100% 4.60 RR X Russian Championship
4 540 2023-06-11 41/88 43% 3.75 RR Money can not buy tenpai
5 440 2022-11-06 43/76 0% 4.20 RR IX Russian Riichi Championship
6 358 2022-03-20 44/68 0% 3.50 RR Tenpai can't buy happiness
7 984 2019-11-04 2/64 0% 3.85 EMA Aki Shanten 2019
8 174 2019-06-16 20/24 0% 2.20 RR URAL Mahjong Battle
9 84 2019-05-04 77/84 0% 4.20 EMA Haru Shanten 2019
10 473 2019-01-05 30/56 0% 3.00 EMA Snow Dragon
11 363 2018-11-18 59/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
12 704 2018-08-11 9/28 0% 1.70 RR Natsu Shanten 2018
13 479 2018-05-01 38/72 0% 3.85 EMA Haru Shanten 2018
14 366 2017-11-12 46/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
15 261 2017-07-30 18/24 0% 2.20 RR Summer EMA rules tournament 2017
16 741 2017-06-11 8/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017
17 111 2017-03-25 25/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
18 696 2017-01-29 8/24 0% 2.20 RR The first tournament of 2017
19 543 2017-01-05 17/36 0% 2.50 RR Quick discard 2017
20 600 2016-07-17 7/16 0% 1.60 RR "Legendary player" riichi mahjong tournament 2016
21 484 2016-05-03 17/32 0% 2.40 RR Siberia Cup 2016
22 384 2016-03-13 62/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
23 947 2016-02-07 2/20 0% 1.70 RR "Tiles, doras, 2 renchans"
24 478 2015-12-05 13/24 0% 1.80 RR 4 riichi mahjong tournament 2015
25 667 2015-10-18 18/52 0% 2.90 EMA Russian Open Riichi Championship 2015
26 421 2015-09-27 12/20 0% 1.70 RR Plitochka
27 1000 2015-08-29 1/16 0% 1.60 RR 3 riichi mahjong tournament 2015
28 333 2015-05-16 11/16 0% 1.60 RR 2 autumn riichi mahjong tournament 2015
29 889 2015-02-22 4/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015
30 895 2014-10-25 3/20 0% 1.30 RR Autumn riichi mahjong tournament 2014
31 158 2014-06-08 17/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017