Li Dmitriy

From Saint Petersburg, Russia

EMA: 15990320

Player page

Internal rating (RR)

Rating date Aug. 12, 2025 (latest changes Aug. 9, 2025).

152 place (268.92).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2

p1 = (934.58 * 4 * 0.14 + 557.89 * 3.85 * 1 + 0 + 0 + 0) / (4 * 0.14 + 3.85 * 1 + 1 + 1 + 1) = 361.3910747008731

p2 = (557.89 * 3.85 * 1 + 934.58 * 4 * 0.14) / max_coefficients = 176.45394736842107

score = 361.3910747008731 * 0.5 + 176.45394736842107 * 0.5 = 268.9225110346471

Rating changes

Show

all results
Date Place Points Reason
2025-08-04 152 268.06 -> 268.92
2025-08-03 145 -> 152 268.06
2025-07-30 146 -> 145 268.06
2025-07-13 143 -> 146 268.06
2025-07-12 145 -> 143 266.43 -> 268.06
2025-07-03 131 -> 145 303.97 -> 266.43

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 126 -> 131 307.01 -> 303.97
2025-06-11 130 -> 126 307.01
2025-06-09 131 -> 130 307.01
2025-06-08 130 -> 131 307.01

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 558 2024-09-01 43/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
2 935 2023-09-03 8/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
3 307 2021-11-28 53/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
4 901 2019-12-15 12/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
5 905 2019-11-24 7/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
6 217 2019-05-04 66/84 0% 4.20 EMA Haru Shanten 2019 Perm
7 418 2018-11-18 54/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
8 185 2018-07-15 23/28 0% 3.00 RR Moscow Open Riichi Marathon Moscow
9 268 2018-06-11 53/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
10 161 2018-03-04 27/32 0% 2.70 RR East Cup 2018 Saint Petersburg
11 807 2017-12-11 17/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
12 205 2017-10-01 32/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017 Saint Petersburg
13 37 2017-08-06 27/28 0% 2.30 EMA Ivanovo Region Riichi 2017 Ivanovo
14 615 2017-06-03 16/40 0% 1.80 RR Saint Petersburg championship. West cup 2017 Saint Petersburg
15 814 2017-03-18 9/44 0% 1.90 RR Saint Petersburg championship. South cup 2017 Saint Petersburg
16 484 2016-03-27 17/32 0% 1.60 RR Tournament of 4 winds. East cup 2016 Saint Petersburg