Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Ruichen Miao

1110141974
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1279.1
K-factor 36
Floor 779.1
Highest 1305.3 (2024-03-01)
Min/Max +/- allowed 143
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1167.1
Final +/- 0
New Rating
()
Rating 1279.1
K-factor 36
Floor 779.1
Highest 1305.3 (2024-03-01)
Min/Max +/- allowed 142.7
Standard rating
Rating 1234.8
K-factor 36
Floor 734.8
Highest 1234.8 (2026-02-28)
Min/Max +/- allowed 157.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1088.9
Final +/- 0
New Rating
()
Rating 1234.8
K-factor 36
Floor 734.8
Highest 1234.8 (2026-02-28)
Min/Max +/- allowed 157.8
Rapid rating
Rating 1290.8
K-factor 36
Floor 790.8
Highest 1361.4 (2024-02-01)
Min/Max +/- allowed 131.7
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1290.8
K-factor 36
Floor 790.8
Highest 1361.4 (2024-02-01)
Min/Max +/- allowed 131.7
Blitz rating
Rating 1186.5
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1186.5
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 2026 JMC Kick off Tournament (D) Standard 2026-02-01 2026-02-01 Johannesburg Metro (GJM) 5 1250.1 5 4 1438.8 0 Details
2 Goue Liga Blitz 2025 Blitz 2025-10-25 2025-10-25 Johannesburg Metro (GJM) 9 1252.6 8 3 1159.5 0 Details
3 CPH St Andrew's Rapid 2024 (B) Rapid 2024-03-30 2024-03-30 Ekurhuleni (GE) 5 1206.8 5 3 1390.8 0 Details
4 1st Knights Open Tournament 2024 (C) Standard 2024-03-23 2024-03-23 Johannesburg Metro (GJM) 5 1206.8 5 2 1216.5 0 Details
5 Chess Power House 1st Rapid 2024 (B) Rapid 2024-02-24 2024-02-24 Johannesburg Metro (GJM) 5 1166 5 4 1583.7 0 Details
6 JMC Kick Off Tournament 2024 (D) Standard 2024-01-28 2024-01-28 Johannesburg Metro (GJM) 5 1141.8 5 3 1273.5 0 Details
7 JMC 1 St Peters 2023 (D) Standard 2023-03-18 2023-03-18 Johannesburg Metro (GJM) 5 1149 5 2 1115 0 Details
8 JMC Womens Day 2022 (C) Standard 2022-08-06 2022-08-07 Johannesburg Metro (GJM) 6 1205.6 6 2 1046.3 0 Details
9 Chessheroes Junior Challenge 2022 (U13) Standard 2022-08-13 2022-08-13 Johannesburg Metro (GJM) 5 1205.6 5 1.5 1094.9 0 Details
10 Chess Power House Rapid 2022 (B) Rapid 2022-06-11 2022-06-11 Johannesburg Metro (GJM) 5 1200 5 3 1258.5 0 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 5
Wins 4
Draws 0
Losses 1
White 2
Black 3
White wins 2
Black wins 2
Score 4
Percent 80
Dp 255
AOR 1183.8
Performance 1438.8
Game statistics (History)
Games 54
Wins 27
Draws 1
Losses 26
White 26
Black 28
White wins 11
Black wins 16
Score 27.5
Percent 50.9
Dp 7.9
AOR 1240.5
Performance 1248.4
Rankings (Main)
National
Overall 6836
Gender 5620
Age group 1194
Gender/Age 932
Provincial
Overall 2322
Gender 1902
Age group 410
Gender/Age 311
Regional
Overall 610
Gender 524
Age group 82
Gender/Age 62
Rankings (Standard)
National
Overall 7940
Gender 6321
Age group 1432
Gender/Age 1077
Provincial
Overall 2862
Gender 2261
Age group 539
Gender/Age 387
Regional
Overall 680
Gender 550
Age group 106
Gender/Age 75
Rankings (Rapid)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 5
Score 4
Percent 80
Aor 1183.8
Dp 255
Prat 1438.8
Performance (12 months)
Games 13
Score 7
Percent 53.8
Aor 1234.2
Dp 32.7
Prat 1266.9
Performance (History)
Games 54
Score 27.5
Percent 50.9
Aor 1240.5
Dp 7.9
Prat 1248.4
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Kwak, J (Jaeson) 2 2 0 Chessheroes Junior Challenge 2022 (U13) 1st Knights Open Tournament 2024 (C) Details
Overall 2 Chadalavada, B (Bhaarghavarama) 2 0 2 JMC 1 St Peters 2023 (D) 1st Knights Open Tournament 2024 (C) Details
Standard 1 Kwak, J (Jaeson) 2 2 0 Chessheroes Junior Challenge 2022 (U13) 1st Knights Open Tournament 2024 (C) Details
Standard 2 Chadalavada, B (Bhaarghavarama) 2 0 2 JMC 1 St Peters 2023 (D) 1st Knights Open Tournament 2024 (C) Details