Zarezin Ivan

From Yekaterinburg, Russia

EMA: 15020003

Player page

Internal rating (RR)

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

83 place (325.06).

max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 0.86 + 3.05 * 1) = 14.864125000000001

p1 = (440 * 4.20 * 0.29 + 540.23 * 3.75 * 0.86 + 401.87 * 4.60 * 1 + 0 + 0) / (4.20 * 0.29 + 3.75 * 0.86 + 4.60 * 1 + 1 + 1) = 373.42616009620434

p2 = (401.87 * 4.60 * 1 + 540.23 * 3.75 * 0.86 + 440 * 4.20 * 0.29) / max_coefficients = 276.70246314532466

score = 373.42616009620434 * 0.5 + 276.70246314532466 * 0.5 = 325.0643116207645

Rating changes

Show

all results
Date Place Points Reason
2024-07-06 81 -> 83 335.67 -> 325.06

IX Russian Riichi Championship: 43% -> 29%
2024-06-11 84 -> 81 343.55 -> 335.67

Money can not buy tenpai: 100% -> 86%
2024-06-09 80 -> 84 343.55
2024-05-12 75 -> 80 274.01 -> 343.55

X Russian Championship: 0% -> 100%
2024-05-06 73 -> 75 285.14 -> 274.01

IX Russian Riichi Championship: 57% -> 43%
2024-04-12 75 -> 73 285.14
2024-03-30 70 -> 75 285.14
2024-03-20 67 -> 70 312.02 -> 285.14

Tenpai can't buy happiness: 14% -> 0%
2024-03-10 58 -> 67 332.70 -> 312.02
2024-03-06 57 -> 58 338.56 -> 332.70

IX Russian Riichi Championship: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 402 2024-05-12 65/108 100% 4.60 RR X Russian Championship
2 540 2023-06-11 41/88 86% 3.75 RR Money can not buy tenpai
3 440 2022-11-06 43/76 29% 4.20 RR IX Russian Riichi Championship
4 358 2022-03-20 44/68 0% 3.50 RR Tenpai can't buy happiness
5 984 2019-11-04 2/64 0% 3.85 EMA Aki Shanten 2019
6 174 2019-06-16 20/24 0% 2.20 RR URAL Mahjong Battle
7 84 2019-05-04 77/84 0% 4.20 EMA Haru Shanten 2019
8 473 2019-01-05 30/56 0% 3.00 EMA Snow Dragon
9 363 2018-11-18 59/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
10 704 2018-08-11 9/28 0% 1.70 RR Natsu Shanten 2018
11 479 2018-05-01 38/72 0% 3.85 EMA Haru Shanten 2018
12 366 2017-11-12 46/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
13 261 2017-07-30 18/24 0% 2.20 RR Summer EMA rules tournament 2017
14 741 2017-06-11 8/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017
15 111 2017-03-25 25/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
16 696 2017-01-29 8/24 0% 2.20 RR The first tournament of 2017
17 543 2017-01-05 17/36 0% 2.50 RR Quick discard 2017
18 600 2016-07-17 7/16 0% 1.60 RR "Legendary player" riichi mahjong tournament 2016
19 484 2016-05-03 17/32 0% 2.40 RR Siberia Cup 2016
20 384 2016-03-13 62/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
21 947 2016-02-07 2/20 0% 1.70 RR "Tiles, doras, 2 renchans"
22 478 2015-12-05 13/24 0% 1.80 RR 4 riichi mahjong tournament 2015
23 667 2015-10-18 18/52 0% 2.90 EMA Russian Open Riichi Championship 2015
24 421 2015-09-27 12/20 0% 1.70 RR Plitochka
25 1000 2015-08-29 1/16 0% 1.60 RR 3 riichi mahjong tournament 2015
26 333 2015-05-16 11/16 0% 1.60 RR 2 autumn riichi mahjong tournament 2015
27 889 2015-02-22 4/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015
28 895 2014-10-25 3/20 0% 1.30 RR Autumn riichi mahjong tournament 2014
29 158 2014-06-08 17/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017