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

PLAYER PAGE

Oliver Overbosch

1160327746
Cape Town (WCT)
Personal
Main rating
Rating 1141.8
K-factor 36
Floor 715.6
Highest 1215.6 (2026-02-28)
Min/Max +/- allowed 162
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1141.8
K-factor 36
Floor 715.6
Highest 1215.6 (2026-02-28)
Min/Max +/- allowed 162.2
Standard rating
Rating 1124.3
K-factor 36
Floor 709.6
Highest 1209.6 (2026-02-28)
Min/Max +/- allowed 163.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1124.3
K-factor 36
Floor 709.6
Highest 1209.6 (2026-02-28)
Min/Max +/- allowed 163.6
Rapid rating
Rating 1200
K-factor 40
Floor 700
Highest 1199 (2025-09-12)
Min/Max +/- allowed 166.1
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 40
Floor 700
Highest 1199 (2025-09-12)
Min/Max +/- allowed 166.1
Blitz rating
Rating 1200
K-factor 40
Floor 700
Highest 1199 (2025-09-12)
Min/Max +/- allowed 166.1
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 40
Floor 700
Highest 1199 (2025-09-12)
Min/Max +/- allowed 166.1
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 Cape Town Metro South Top Schools 2026 (U11 Mixed) Standard 2026-07-25 2026-07-26 Cape Town (WCT) 6 1141.8 6 5 1083.3 -14.6 Details
2 CT Metro Schools Individual Closed 2026 (U11 Boys) Standard 2026-03-07 2026-03-08 Cape Town (WCT) 6 1215.6 5 0 882.3 -59.1 Details
3 CT Metro South Individual Trials 2026 (U11 Boys) Standard 2026-02-07 2026-02-08 Cape Town (WCT) 6 1199.4 6 3 1272.4 5.8 Details
4 Western Cape Schools - Top Schools 2025 (U9) Standard 2025-09-06 2025-09-07 Overberg (WOS) 6 1200 5 2 1199.2 -0.8 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 17
Wins 8
Draws 0
Losses 9
White 8
Black 9
White wins 3
Black wins 5
Score 8
Percent 47.1
Dp -25
AOR 1115.9
Performance 1090.9
Game statistics (History)
Games 22
Wins 10
Draws 0
Losses 12
White 11
Black 11
White wins 4
Black wins 6
Score 10
Percent 45.5
Dp -38.6
AOR 1154.2
Performance 1115.5
Rankings (Main)
National
Overall 17040
Gender 12807
Age group 2694
Gender/Age 1914
Provincial
Overall 4980
Gender 3657
Age group 833
Gender/Age 571
Regional
Overall 1853
Gender 1465
Age group 292
Gender/Age 225
Rankings (Standard)
National
Overall 13076
Gender 9679
Age group 2060
Gender/Age 1433
Provincial
Overall 3912
Gender 2775
Age group 674
Gender/Age 443
Regional
Overall 1505
Gender 1157
Age group 223
Gender/Age 167
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 17
Score 8
Percent 47.1
Aor 1115.9
Dp -25
Prat 1090.9
Performance (12 months)
Games 17
Score 8
Percent 47.1
Aor 1115.9
Dp -25
Prat 1090.9
Performance (History)
Games 22
Score 10
Percent 45.5
Aor 1154.2
Dp -38.6
Prat 1115.5
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Tomsana, S (Savuzwa) 2 1 1 Cape Town Metro South Top Schools 2026 (U11 Mixed) Cape Town Metro South Top Schools 2026 (U11 Mixed) Details
Overall 2 Arnold, C (Carter) 2 1 1 Cape Town Metro South Top Schools 2026 (U11 Mixed) Cape Town Metro South Top Schools 2026 (U11 Mixed) Details
Overall 3 Joya, L (Lilitha) 2 1 1 CT Metro South Individual Trials 2026 (U11 Boys) CT Metro Schools Individual Closed 2026 (U11 Boys) Details
Overall 4 Joyi, S (Stephan) 2 1 1 Cape Town Metro South Top Schools 2026 (U11 Mixed) Cape Town Metro South Top Schools 2026 (U11 Mixed) Details
Standard 1 Arnold, C (Carter) 2 1 1 Cape Town Metro South Top Schools 2026 (U11 Mixed) Cape Town Metro South Top Schools 2026 (U11 Mixed) Details
Standard 2 Joya, L (Lilitha) 2 1 1 CT Metro South Individual Trials 2026 (U11 Boys) CT Metro Schools Individual Closed 2026 (U11 Boys) Details
Standard 3 Joyi, S (Stephan) 2 1 1 Cape Town Metro South Top Schools 2026 (U11 Mixed) Cape Town Metro South Top Schools 2026 (U11 Mixed) Details
Standard 4 Tomsana, S (Savuzwa) 2 1 1 Cape Town Metro South Top Schools 2026 (U11 Mixed) Cape Town Metro South Top Schools 2026 (U11 Mixed) Details