Zarezin Ivan

From Yekaterinburg, Russia

EMA: 15020003

Player page

Internal rating (RR)

Rating date Feb. 1, 2021 (latest changes Feb. 1, 2021).

67 place (343.80).

max_coefficients = (4.05 * 0.86 + 2.90 * 1 + 3.85 * 0.71 + 3.45 * 0.71) = 11.585645

p1 = (84.34 * 4.20 * 0.29 + 173.91 * 2.20 * 0.43 + 984.13 * 3.85 * 0.71 + 0 + 0) / (4.20 * 0.29 + 2.20 * 0.43 + 3.85 * 0.71 + 1 + 1) = 431.1078839649118

p2 = (984.13 * 3.85 * 0.71 + 173.91 * 2.20 * 0.43 + 84.34 * 4.20 * 0.29) / max_coefficients = 256.4889568081881

score = 431.1078839649118 * 0.5 + 256.4889568081881 * 0.5 = 343.79842038655

Rating changes

Show

all results
Date Place Points Reason
2021-02-01 82 -> 67 439.90 -> 343.80
2020-02-01 82 439.90

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 984 2019-11-04 2/64 71% 3.85 EMA Aki Shanten 2019 Perm
2 174 2019-06-16 20/24 43% 2.20 RR URAL Mahjong Battle Yekaterinburg
3 84 2019-05-04 77/84 29% 4.20 EMA Haru Shanten 2019 Perm
4 473 2019-01-05 30/56 0% 3.00 EMA Snow Dragon Novosibirsk
5 363 2018-11-18 59/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
6 704 2018-08-11 9/28 0% 1.70 RR Natsu Shanten 2018 Perm
7 479 2018-05-01 38/72 0% 3.85 EMA Haru Shanten 2018 Perm
8 366 2017-11-12 46/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
9 261 2017-07-30 18/24 0% 2.20 RR Summer EMA rules tournament 2017 Yekaterinburg
10 741 2017-06-11 8/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017 Tyumen
11 111 2017-03-25 25/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017 Perm
12 696 2017-01-29 8/24 0% 2.20 RR The first tournament of 2017 Yekaterinburg
13 543 2017-01-05 17/36 0% 2.50 RR Quick discard 2017 Novosibirsk
14 600 2016-07-17 7/16 0% 1.60 RR "Legendary player" riichi mahjong tournament 2016 Tyumen
15 484 2016-05-03 17/32 0% 2.40 RR Siberia Cup 2016 Novosibirsk
16 384 2016-03-13 62/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016 Moscow
17 947 2016-02-07 2/20 0% 1.70 RR "Tiles, doras, 2 renchans" Tyumen
18 478 2015-12-05 13/24 0% 1.80 RR 4 riichi mahjong tournament 2015 Yekaterinburg
19 667 2015-10-18 18/52 0% 2.90 EMA Russian Open Riichi Championship 2015 Vologda
20 421 2015-09-27 12/20 0% 1.70 RR Plitochka Tyumen
21 1000 2015-08-29 1/16 0% 1.60 RR 3 riichi mahjong tournament 2015 Yekaterinburg
22 333 2015-05-16 11/16 0% 1.60 RR 2 autumn riichi mahjong tournament 2015 Yekaterinburg
23 889 2015-02-22 4/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015 Yekaterinburg
24 895 2014-10-25 3/20 0% 1.30 RR Autumn riichi mahjong tournament 2014 Yekaterinburg
25 158 2014-06-08 17/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017 Chelyabinsk