Surname or Chess SA id..
Chess SA Region AOC Mzansi 2026

PLAYER PAGE

Onyekachi Oleh

1150303498
Buffalo City (EBC)
Personal
Main rating
Rating 1089.1
K-factor 36
Floor 700
Highest 1200 (2024-05-01)
Min/Max +/- allowed 166
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1010.2
Final +/- 0
New Rating
()
Rating 1089.1
K-factor 36
Floor 700
Highest 1200 (2024-05-01)
Min/Max +/- allowed 165.8
Standard rating
Rating 1077.3
K-factor 36
Floor 700
Highest 1200 (2024-05-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 997.7
Final +/- 0
New Rating
()
Rating 1077.3
K-factor 36
Floor 700
Highest 1200 (2024-05-01)
Min/Max +/- allowed 165.8
Rapid rating
Rating 1111.7
K-factor 36
Floor 700
Highest 1200 (2024-05-01)
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 1111.7
K-factor 36
Floor 700
Highest 1200 (2024-05-01)
Min/Max +/- allowed 165.8
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2024-05-01)
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 1200
K-factor 36
Floor 700
Highest 1200 (2024-05-01)
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 BCM Schools Chess All Ages Festival 2026 (U12 Open) Rapid 2026-07-25 2026-07-25 Buffalo City (EBC) 6 1089.1 1 0 1066.9 -1.3 Details
2 2026 Buffalo City Closed (U12 Boys) Standard 2026-08-08 2026-08-08 Buffalo City (EBC) 5 1089.1 4 1 1083 -2 Details
3 2026 Buffalo City Chess Trials 5 (U12) Standard 2026-07-11 2026-07-11 Buffalo City (EBC) 5 1100.1 4 1 1069.1 -7.7 Details
4 2026 Buffalo City Chess Trials 4 (U12) Standard 2026-05-30 2026-05-30 Buffalo City (EBC) 5 1134.4 5 1 909 -40.9 Details
5 Vikings April Rapid 2026 (U12) Rapid 2026-04-18 2026-04-18 Buffalo City (EBC) 5 1134.4 5 2 1195.3 6.7 Details
6 Hudson Park Primary Festival 2026 (U12) Standard 2026-03-07 2026-03-07 Buffalo City (EBC) 5 1107.4 5 3 1303 7.7 Details
7 3rd Annual WSC-ELIDZ Chess Extravaganza 2026 (U12) Standard 2026-03-14 2026-03-14 Buffalo City (EBC) 5 1107.4 5 2 1288.9 30.7 Details
8 2026 Buffalo City Chess Trials 3 (U12) Standard 2026-03-21 2026-03-21 Buffalo City (EBC) 5 1186.9 4 0 806.4 -53.6 Details
9 Vikings Rapid 2026 (B) Rapid 2026-02-21 2026-02-21 Buffalo City (EBC) 8 1186.9 6 1 985.1 -20 Details
10 2026 Buffalo City Chess Trials 2 (U12 Boys) Standard 2026-02-28 2026-02-28 Buffalo City 5 1186.9 5 2 1146.5 -6 Details
11 2026 Buffalo City Chess Trials 1 (U12) Standard 2026-02-07 2026-02-07 Buffalo City (EBC) 5 1188.7 5 2 1128.6 -5.1 Details
12 5th BC Trails 2024 (U10B) Standard 2024-08-17 2024-08-17 Buffalo City (EBC) 5 1162.5 5 3 1276.4 12.1 Details
13 4th BC Trials 2024 (U10B) Standard 2024-06-08 2024-06-08 Buffalo City (EBC) 5 1178.1 5 2 1104.8 -7.8 Details
14 3rd BC Trials 2024 (U10B) Standard 2024-05-11 2024-05-11 Buffalo City (EBC) 5 1200 5 2 1096.6 -11 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 49
Wins 15
Draws 0
Losses 34
White 25
Black 24
White wins 8
Black wins 7
Score 15
Percent 30.6
Dp -164.8
AOR 1260
Performance 1095.2
Game statistics (History)
Games 64
Wins 22
Draws 0
Losses 42
White 33
Black 31
White wins 11
Black wins 11
Score 22
Percent 34.4
Dp -132.8
AOR 1243.1
Performance 1110.3
Rankings (Main)
National
Overall 18401
Gender 13596
Age group 2994
Gender/Age 2094
Provincial
Overall 1625
Gender 1218
Age group 219
Gender/Age 146
Regional
Overall 530
Gender 395
Age group 80
Gender/Age 54
Rankings (Standard)
National
Overall 13718
Gender 10044
Age group 2188
Gender/Age 1504
Provincial
Overall 1321
Gender 980
Age group 181
Gender/Age 117
Regional
Overall 441
Gender 327
Age group 64
Gender/Age 42
Rankings (Rapid)
National
Overall 6204
Gender 4621
Age group 1115
Gender/Age 791
Provincial
Overall 483
Gender 380
Age group 83
Gender/Age 59
Regional
Overall 201
Gender 148
Age group 42
Gender/Age 27
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 49
Score 15
Percent 30.6
Aor 1260
Dp -164.8
Prat 1095.2
Performance (12 months)
Games 49
Score 15
Percent 30.6
Aor 1260
Dp -164.8
Prat 1095.2
Performance (History)
Games 64
Score 22
Percent 34.4
Aor 1243.1
Dp -132.8
Prat 1110.3
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Mkhize, Z (Zamambo) 4 2 2 2026 Buffalo City Chess Trials 3 (U12) 2026 Buffalo City Chess Trials 4 (U12) Details
Overall 2 Ndlume, Z (Zusange) 3 2 1 2026 Buffalo City Chess Trials 2 (U12 Boys) Vikings April Rapid 2026 (U12) Details
Overall 3 Matyeshana, L (Likuwe) 2 2 0 Vikings Rapid 2026 (B) 2026 Buffalo City Chess Trials 5 (U12) Details
Overall 4 Karthikeyan, P (Pratik) 2 0 2 2026 Buffalo City Chess Trials 2 (U12 Boys) 2026 Buffalo City Chess Trials 4 (U12) Details
Overall 5 Lin, Y (Yifan) 2 1 1 3rd BC Trials 2024 (U10B) 4th BC Trials 2024 (U10B) Details
Standard 1 Mkhize, Z (Zamambo) 3 1 2 2026 Buffalo City Chess Trials 3 (U12) 2026 Buffalo City Chess Trials 4 (U12) Details
Standard 2 Lin, Y (Yifan) 2 1 1 3rd BC Trials 2024 (U10B) 4th BC Trials 2024 (U10B) Details
Standard 3 Magenu, P (Phumelela) 2 1 1 2026 Buffalo City Chess Trials 1 (U12) 2026 Buffalo City Chess Trials 3 (U12) Details
Standard 4 Karthikeyan, P (Pratik) 2 0 2 2026 Buffalo City Chess Trials 2 (U12 Boys) 2026 Buffalo City Chess Trials 4 (U12) Details
Standard 5 Mazikana, E (Elsie) 2 0 2 5th BC Trails 2024 (U10B) 2026 Buffalo City Chess Trials 5 (U12) Details