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

PLAYER PAGE

Oliver Overbosch

1160327746
Cape Town (WCT)
Personal
Main rating
Rating 1167.7
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 1090.6
Final +/- 0
New Rating
()
Rating 1167.7
K-factor 36
Floor 715.6
Highest 1215.6 (2026-02-28)
Min/Max +/- allowed 162.2
Standard rating
Rating 1152.2
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 1090.6
Final +/- 0
New Rating
()
Rating 1152.2
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 Western Cape - Top Schools 2026 (U11 Mix) Standard 2026-09-05 2026-09-06 Cape Winelands (WCW) 6 1141.8 6 3 1266 25.9 Details
2 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
3 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
4 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
5 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 23
Wins 11
Draws 0
Losses 12
White 11
Black 12
White wins 4
Black wins 7
Score 11
Percent 47.8
Dp -18.5
AOR 1155.1
Performance 1136.6
Game statistics (History)
Games 28
Wins 13
Draws 0
Losses 15
White 14
Black 14
White wins 5
Black wins 8
Score 13
Percent 46.4
Dp -30.4
AOR 1178.1
Performance 1147.8
Rankings (Main)
National
Overall 15344
Gender 11738
Age group 2398
Gender/Age 1733
Provincial
Overall 4554
Gender 3410
Age group 748
Gender/Age 524
Regional
Overall 1732
Gender 1389
Age group 271
Gender/Age 211
Rankings (Standard)
National
Overall 12209
Gender 9147
Age group 1936
Gender/Age 1363
Provincial
Overall 3680
Gender 2654
Age group 629
Gender/Age 422
Regional
Overall 1442
Gender 1124
Age group 217
Gender/Age 163
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 23
Score 11
Percent 47.8
Aor 1155.1
Dp -18.5
Prat 1136.6
Performance (12 months)
Games 23
Score 11
Percent 47.8
Aor 1155.1
Dp -18.5
Prat 1136.6
Performance (History)
Games 28
Score 13
Percent 46.4
Aor 1178.1
Dp -30.4
Prat 1147.8
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 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
Overall 2 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 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 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 1 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 2 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
Standard 3 Joya, L (Lilitha) 2 1 1 CT Metro South Individual Trials 2026 (U11 Boys) CT Metro Schools Individual Closed 2026 (U11 Boys) Details
Standard 4 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