Zarezin Ivan

From Yekaterinburg, Russia

EMA: 15020003

Player page

Common russian riichi rating (CRR)

Rating date Dec. 27, 2023 (latest changes Dec. 27, 2023).

32 place (501.09).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001

p1 = (631.58 * 2.10 * 1 + 358.21 * 3.50 * 0.29 + 440 * 4.20 * 0.86 + 540.23 * 3.75 * 1 + 703.70 * 2.30 * 1) / (2.10 * 1 + 3.50 * 0.29 + 4.20 * 0.86 + 3.75 * 1 + 2.30 * 1) = 542.1909571702076

p2 = (540.23 * 3.75 * 1 + 703.70 * 2.30 * 1 + 440 * 4.20 * 0.86 + 631.58 * 2.10 * 1) / max_coefficients = 459.9791435961998

score = 542.1909571702076 * 0.5 + 459.9791435961998 * 0.5 = 501.0850503832037

Rating changes

Show

all results
Date Place Points Reason
2023-11-28 33 -> 32 501.09
2023-11-26 33 502.71 -> 501.09
2023-11-20 35 -> 33 499.24 -> 502.71

Tenpai can't buy happiness: 43% -> 29%
2023-11-06 37 -> 35 496.70 -> 499.24

IX Russian Riichi Championship: 100% -> 86%
2023-11-05 57 -> 37 423.08 -> 496.70

Finding Dora: 0% -> 100%
2023-10-22 56 -> 57 423.08
2023-10-12 58 -> 56 421.86 -> 423.08
2023-09-28 57 -> 58 421.86
2023-09-20 56 -> 57 426.00 -> 421.86

Tenpai can't buy happiness: 57% -> 43%
2023-09-06 57 -> 56 426.00

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 704 2023-11-05 9/28 100% 2.30 CRR Finding Dora
2 632 2023-08-27 8/20 100% 2.10 CRR 13 tiles until tempai
3 540 2023-06-11 41/88 100% 3.75 RR Money can not buy tenpai
4 440 2022-11-06 43/76 86% 4.20 RR IX Russian Riichi Championship
5 358 2022-03-20 44/68 29% 3.50 RR Tenpai can't buy happiness
6 984 2019-11-04 2/64 0% 3.85 EMA Aki Shanten 2019
7 455 2019-07-06 7/12 0% 1.50 CRR Perm Half Marathon
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
14 789 2018-03-18 5/20 0% 2.10 CRR Spring tournament (Ekaterinburg)
15 789 2018-02-24 5/20 0% 2.10 CRR Guard of the tenpai
16 366 2017-11-12 46/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
17 261 2017-07-30 18/24 0% 2.20 RR Summer EMA rules tournament 2017
18 741 2017-06-11 8/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017
19 111 2017-03-25 25/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
20 696 2017-01-29 8/24 0% 2.20 RR The first tournament of 2017
21 543 2017-01-05 17/36 0% 2.50 RR Quick discard 2017
22 600 2016-07-17 7/16 0% 1.60 RR "Legendary player" riichi mahjong tournament 2016
23 484 2016-05-03 17/32 0% 2.40 RR Siberia Cup 2016
24 384 2016-03-13 62/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
25 947 2016-02-07 2/20 0% 1.70 RR "Tiles, doras, 2 renchans"
26 478 2015-12-05 13/24 0% 1.80 RR 4 riichi mahjong tournament 2015
27 667 2015-10-18 18/52 0% 2.90 EMA Russian Open Riichi Championship 2015
28 421 2015-09-27 12/20 0% 1.70 RR Plitochka
29 1000 2015-08-29 1/16 0% 1.60 RR 3 riichi mahjong tournament 2015
30 333 2015-05-16 11/16 0% 1.60 RR 2 autumn riichi mahjong tournament 2015
31 889 2015-02-22 4/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015
32 895 2014-10-25 3/20 0% 1.30 RR Autumn riichi mahjong tournament 2014
33 158 2014-06-08 17/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017