Zarezin Ivan

From Yekaterinburg, Russia

EMA: 15020003

Player page

Common russian riichi rating (CRR)

Rating date Oct. 12, 2023 (latest changes Oct. 12, 2023).

56 place (423.08).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75

p1 = (358.21 * 3.50 * 0.43 + 540.23 * 3.75 * 1 + 440 * 4.20 * 1 + 631.58 * 2.10 * 1 + 0) / (3.50 * 0.43 + 3.75 * 1 + 4.20 * 1 + 2.10 * 1 + 1) = 457.17006238994117

p2 = (540.23 * 3.75 * 1 + 440 * 4.20 * 1 + 631.58 * 2.10 * 1 + 358.21 * 3.50 * 0.43) / max_coefficients = 388.9850847457627

score = 457.17006238994117 * 0.5 + 388.9850847457627 * 0.5 = 423.0775735678519

Rating changes

Show

all results
Date Place Points Reason
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
2023-09-03 41 -> 57 443.53 -> 426.00
2023-08-27 69 -> 41 360.29 -> 443.53

13 tiles until tempai: 0% -> 100%
2023-08-19 70 -> 69 360.29
2023-08-12 75 -> 70 353.45 -> 360.29
2023-07-20 75 359.23 -> 353.45

Tenpai can't buy happiness: 71% -> 57%
2023-07-03 76 -> 75 359.23

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 632 2023-08-27 8/20 100% 2.10 CRR 13 tiles until tempai
2 540 2023-06-11 41/88 100% 3.75 RR Money can not buy tenpai
3 440 2022-11-06 43/76 100% 4.20 RR IX Russian Riichi Championship
4 358 2022-03-20 44/68 43% 3.50 RR Tenpai can't buy happiness
5 984 2019-11-04 2/64 0% 3.85 EMA Aki Shanten 2019
6 455 2019-07-06 7/12 0% 1.50 CRR Perm Half Marathon
7 174 2019-06-16 20/24 0% 2.20 RR URAL Mahjong Battle
8 84 2019-05-04 77/84 0% 4.20 EMA Haru Shanten 2019
9 473 2019-01-05 30/56 0% 3.00 EMA Snow Dragon
10 363 2018-11-18 59/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten"
11 704 2018-08-11 9/28 0% 1.70 RR Natsu Shanten 2018
12 479 2018-05-01 38/72 0% 3.85 EMA Haru Shanten 2018
13 789 2018-03-18 5/20 0% 2.10 CRR Spring tournament (Ekaterinburg)
14 789 2018-02-24 5/20 0% 2.10 CRR Guard of the tenpai
15 366 2017-11-12 46/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
16 261 2017-07-30 18/24 0% 2.20 RR Summer EMA rules tournament 2017
17 741 2017-06-11 8/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017
18 111 2017-03-25 25/28 0% 1.50 RR "Spring shanten" tournament, Perm 2017
19 696 2017-01-29 8/24 0% 2.20 RR The first tournament of 2017
20 543 2017-01-05 17/36 0% 2.50 RR Quick discard 2017
21 600 2016-07-17 7/16 0% 1.60 RR "Legendary player" riichi mahjong tournament 2016
22 484 2016-05-03 17/32 0% 2.40 RR Siberia Cup 2016
23 384 2016-03-13 62/100 0% 3.40 RR "Japanese House" riichi mahjong cup 2016
24 947 2016-02-07 2/20 0% 1.70 RR "Tiles, doras, 2 renchans"
25 478 2015-12-05 13/24 0% 1.80 RR 4 riichi mahjong tournament 2015
26 667 2015-10-18 18/52 0% 2.90 EMA Russian Open Riichi Championship 2015
27 421 2015-09-27 12/20 0% 1.70 RR Plitochka
28 1000 2015-08-29 1/16 0% 1.60 RR 3 riichi mahjong tournament 2015
29 333 2015-05-16 11/16 0% 1.60 RR 2 autumn riichi mahjong tournament 2015
30 889 2015-02-22 4/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015
31 895 2014-10-25 3/20 0% 1.30 RR Autumn riichi mahjong tournament 2014
32 158 2014-06-08 17/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017