Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Marcello Oerson

1020097137
Cape Winelands (WCW)
Personal
Main rating
Rating 1184.1
K-factor 36
Floor 700
Highest 1200 (2018-02-01)
Min/Max +/- allowed 166
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 707.3
Final +/- 0
New Rating
()
Rating 1184.1
K-factor 36
Floor 700
Highest 1200 (2018-02-01)
Min/Max +/- allowed 165.8
Standard rating
Rating 1088.4
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 1088.4
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rapid rating
Rating 1216.2
K-factor 36
Floor 716.2
Highest 1216.2 (2025-11-01)
Min/Max +/- allowed 162
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 746.6
Final +/- 0
New Rating
()
Rating 1216.2
K-factor 36
Floor 716.2
Highest 1216.2 (2025-11-01)
Min/Max +/- allowed 162
Blitz rating
Rating 1200
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 1200
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 Langeberg Club 2025 (High School+Open) Rapid 2025-10-04 2025-10-04 Cape Winelands (WCW) 6 1161.4 5 2.5 1338.9 0 Details
2 Robertson Chess 2020 (U19) Rapid 2020-03-07 2020-03-07 Cape Winelands (WCW) 5 1112.9 5 4 1450.4 0 Details
3 Cape Winelands Schools Trials 1 2020 (U18 Boys) Rapid 2020-02-15 2020-02-15 Cape Winelands (WCW) 6 1090.3 6 3 1223.1 0 Details
4 Cape Winelands Schools - Top Schools 2019 (U18 Mix) Rapid 2019-07-27 2019-07-27 Cape Winelands (WCW) 5 1102.1 5 1.5 1014.1 0 Details
5 Cape Winelands Schools Closed 2019 (U18+U20 Boys) Standard 2019-03-16 2019-03-17 Cape Winelands (WCW) 7 1159.5 7 3 942.2 0 Details
6 CW Schools Open 2019 (U18+U20 Boys) Rapid 2019-02-02 2019-02-02 Cape Winelands (WCW) 6 1155.4 5 3 1140.2 0 Details
7 North Boland Trials 2018 (U18 Boys) Rapid 2018-02-17 2018-02-17 Cape Winelands (WCW) 5 1200 5 2 814.3 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 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 (History)
Games 38
Wins 18
Draws 2
Losses 18
White 18
Black 20
White wins 8
Black wins 10
Score 19
Percent 50
Dp 0
AOR 1124.3
Performance 1124.3
Rankings (Main)
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 (Standard)
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 (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 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance (12 months)
Games 5
Score 2.5
Percent 50
Aor 1338.9
Dp 0
Prat 1338.9
Performance (History)
Games 38
Score 19
Percent 50
Aor 1124.3
Dp 0
Prat 1124.3
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Palmer, K (Keagan) 2 1 1 CW Schools Open 2019 (U18+U20 Boys) Cape Winelands Schools - Top Schools 2019 (U18 Mix) Details
Overall 2 Engelbrecht, S (Stean) 2 0 2 CW Schools Open 2019 (U18+U20 Boys) Cape Winelands Schools - Top Schools 2019 (U18 Mix) Details
Overall 3 Mitchell, R (Raynard) 2 0 2 Cape Winelands Schools Trials 1 2020 (U18 Boys) Robertson Chess 2020 (U19) Details
Rapid 1 Palmer, K (Keagan) 2 1 1 CW Schools Open 2019 (U18+U20 Boys) Cape Winelands Schools - Top Schools 2019 (U18 Mix) Details
Rapid 2 Engelbrecht, S (Stean) 2 0 2 CW Schools Open 2019 (U18+U20 Boys) Cape Winelands Schools - Top Schools 2019 (U18 Mix) Details
Rapid 3 Mitchell, R (Raynard) 2 0 2 Cape Winelands Schools Trials 1 2020 (U18 Boys) Robertson Chess 2020 (U19) Details