Dergunov Aleksey

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date Feb. 8, 2026 (latest changes Feb. 4, 2026).

3 place (776.96).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (960.78 * 3.05 * 0.14 + 260.87 * 2.10 * 0.14 + 747.66 * 4.60 * 0.29 + 548.39 * 1.80 * 0.29 + 1000 * 1.50 * 0.29 + 176.47 * 3.05 * 0.43 + 744.68 * 2.80 * 0.43 + 797.47 * 3.65 * 0.43 + 673.68 * 3.85 * 0.57 + 573.03 * 3.75 * 0.71 + 826.09 * 2.80 * 0.71 + 542.37 * 3.25 * 1 + 985.71 * 3.50 * 1 + 733.33 * 2 * 1 + 552.24 * 4.10 * 1 + 833.33 * 2.45 * 1 + 744.19 * 3 * 1 + 964.91 * 3.90 * 1 + 645.16 * 3 * 1 + 927.27 * 3 * 1) / (3.05 * 0.14 + 2.10 * 0.14 + 4.60 * 0.29 + 1.80 * 0.29 + 1.50 * 0.29 + 3.05 * 0.43 + 2.80 * 0.43 + 3.65 * 0.43 + 3.85 * 0.57 + 3.75 * 0.71 + 2.80 * 0.71 + 3.25 * 1 + 3.50 * 1 + 2 * 1 + 4.10 * 1 + 2.45 * 1 + 3 * 1 + 3.90 * 1 + 3 * 1 + 3 * 1) = 733.9147317172252

p2 = (964.91 * 3.90 * 1 + 985.71 * 3.50 * 1 + 927.27 * 3 * 1 + 552.24 * 4.10 * 1) / max_coefficients = 820.0107023411372

score = 733.9147317172252 * 0.5 + 820.0107023411372 * 0.5 = 776.9627170291812

Rating changes

Show

all results
Date Place Points Reason
2026-02-04 3 777.35 -> 776.96

Riichi over Volga: 57% -> 43%
2026-02-01 3 777.78 -> 777.35

Riichi never changing: 86% -> 71%
2026-01-30 3 776.13 -> 777.78

Seihoku spring tournament 2024: 29% -> 14%
2026-01-25 5 -> 3 751.26 -> 776.13

Riichi On Ice 2026: 0% -> 100%

Duplicate riichi mahjong tournament 2024: 43% -> 29%
2026-01-19 5 750.72 -> 751.26

"Green Dragon" in the Secret Chamber: 43% -> 29%
2026-01-14 5 750.85 -> 750.72

Guardian of the Winds: 57% -> 43%
2026-01-12 6 -> 5 751.08 -> 750.85

X Russian Championship: 43% -> 29%
2026-01-10 6 752.33 -> 751.08

Agari Spring Tournament 2024: 29% -> 14%
2026-01-07 7 -> 6 752.33
2026-01-01 7 752.02 -> 752.33

SPB Riichi Open 2024: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 927 2026-01-25 5/56 100% 3.00 RR Riichi On Ice 2026 Samara
2 645 2025-11-30 12/32 100% 3.00 RR Final Cup 2025 Moscow
3 965 2025-11-04 🥉 3/58 100% 3.90 RR XI Russian Championship Moscow
4 390 2025-08-31 48/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
5 744 2025-08-03 12/44 100% 3.00 RR Two roosters and Chuckles Kirov
6 833 2025-07-13 6/31 100% 2.45 RR Agari Summer Tournament 2025 Moscow
7 552 2025-06-15 31/68 100% 4.10 RR 13 bloody tiles Perm
8 733 2025-06-08 5/16 100% 2.00 RR Random not fault Moscow
9 986 2025-05-03 🥈 2/71 100% 3.50 RR Riichi over The Volga 2025 Samara
10 542 2025-02-16 28/60 100% 3.25 RR White Wolf Cup Saint Petersburg
11 412 2025-02-02 31/52 86% 3.05 RR Agari Winter Tournament 2025 Moscow
12 381 2025-01-26 27/43 86% 2.60 RR Riichi On Ice Samara
13 826 2024-12-01 5/24 71% 2.80 CRR Riichi never changing Moscow
14 573 2024-10-13 39/90 71% 3.75 RR Moscow Riichi 2024 Moscow
15 674 2024-09-01 32/96 57% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
16 797 2024-08-04 17/80 43% 3.65 RR Riichi over Volga Samara
17 745 2024-07-14 13/48 43% 2.80 RR Guardian of the Winds Yekaterinburg
18 176 2024-06-09 43/52 43% 3.05 RR Agari Summer Tournament 2024 Moscow
19 1000 2024-05-25 🥇 1/20 29% 1.50 CRR Duplicate riichi mahjong tournament 2024 Moscow
20 548 2024-05-19 15/32 29% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
21 748 2024-05-12 28/108 29% 4.60 RR X Russian Championship Perm
22 261 2024-03-30 35/47 14% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
23 961 2024-03-10 🥉 3/52 14% 3.05 RR Agari Spring Tournament 2024 Moscow
24 769 2023-11-26 10/40 0% 2.90 CRR Autumn Agari tournament Moscow
25 864 2023-10-22 4/23 0% 2.10 CRR Mushroom League Moscow
26 215 2023-09-03 85/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
27 253 2023-06-11 66/88 0% 3.75 RR Money can not buy tenpai Perm
28 486 2022-06-12 58/112 0% 4.05 RR Moscow Riichi 2022 Moscow
29 612 2022-03-20 27/68 0% 3.50 RR Tenpai can't buy happiness Perm
30 511 2021-12-19 24/48 0% 3.10 RR Agari team tournament Moscow