Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Rosco Willemse

1170331116
Overberg (WOS)
Personal
Main rating
Rating 1197.4
K-factor 40
Floor 699
Highest 1199 (2026-02-06)
Min/Max +/- allowed 166
Rating Change
()
Games 6
Score 4
We 2.56
SWe 0.87
Temp +/- 34.7
Penalties 0
Weight perform 0
Final +/- 34.7
New Rating
()
Rating 1232.1
K-factor 36
Floor 732.1
Highest 1232.1 (2026-03-01)
Min/Max +/- allowed 158.4
Standard rating
Rating 1200
K-factor 40
Floor 700
Highest 1199 (2026-02-06)
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 (2026-02-06)
Min/Max +/- allowed 166.1
Rapid rating
Rating 1195.7
K-factor 40
Floor 699
Highest 1199 (2026-02-06)
Min/Max +/- allowed 166.1
Rating Change
()
Games 6
Score 4
We 2.52
SWe 1.48
Temp +/- 59
Penalties 0
Weight perform 0
Final +/- 59
New Rating
()
Rating 1254.8
K-factor 36
Floor 754.8
Highest 1254.8 (2026-03-01)
Min/Max +/- allowed 153.4
Blitz rating
Rating 1200
K-factor 40
Floor 700
Highest 1199 (2026-02-06)
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 (2026-02-06)
Min/Max +/- allowed 166.1
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Overberg Schools Primary School Trials (Region 1) 2026 (U9 Boys) Rapid 2026-02-28 2026-02-28 Overberg 6 1197.4 6 4 1401.5 34.7 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Overberg Schools Open Championship 2026 (U9) Rapid 2026-01-31 2026-01-31 Overberg (WOS) 6 1200 5 1 964.4 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 11
Wins 5
Draws 0
Losses 6
White 5
Black 6
White wins 3
Black wins 2
Score 5
Percent 45.5
Dp -38.6
AOR 1241.4
Performance 1202.8
Game statistics (History)
Games 11
Wins 5
Draws 0
Losses 6
White 5
Black 6
White wins 3
Black wins 2
Score 5
Percent 45.5
Dp -38.6
AOR 1241.4
Performance 1202.8
Rankings (Main)
National
Overall 13485
Gender 10525
Age group 618
Gender/Age 445
Provincial
Overall 3940
Gender 2985
Age group 258
Gender/Age 190
Regional
Overall 321
Gender 218
Age group 32
Gender/Age 25
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 4617
Gender 3577
Age group 229
Gender/Age 168
Provincial
Overall 1856
Gender 1414
Age group 126
Gender/Age 98
Regional
Overall 297
Gender 195
Age group 36
Gender/Age 28
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 11
Score 5
Percent 45.5
Aor 1241.4
Dp -38.6
Prat 1202.8
Performance (12 months)
Games 11
Score 5
Percent 45.5
Aor 1241.4
Dp -38.6
Prat 1202.8
Performance (History)
Games 11
Score 5
Percent 45.5
Aor 1241.4
Dp -38.6
Prat 1202.8
Top 5 opponents most often played
Player not found.
Type # Opponent Games White Black First tournament Last tournament Details