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

PLAYER PAGE

Pieter Jacobsz

1190332986
West Coast (WCU)
Personal
Main rating
Rating 1248.4
K-factor 36
Floor 831.7
Highest 1331.7 (2026-06-01)
Min/Max +/- allowed 137
Rating Change
()
Games 4
Score 0
We 2.18
SWe -1.43
Temp +/- -51.6
Penalties 0
Weight perform 962.7
Final +/- -51.6
New Rating
()
Rating 1196.8
K-factor 36
Floor 831.7
Highest 1331.7 (2026-06-01)
Min/Max +/- allowed 137.4
Standard rating
Rating 1252.5
K-factor 36
Floor 752.5
Highest 1252.5 (2026-09-01)
Min/Max +/- allowed 153.9
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1252.5
K-factor 36
Floor 752.5
Highest 1252.5 (2026-09-01)
Min/Max +/- allowed 153.9
Rapid rating
Rating 1199.8
K-factor 36
Floor 866.4
Highest 1366.4 (2026-03-01)
Min/Max +/- allowed 130.8
Rating Change
()
Games 4
Score 0
We 1.87
SWe -1.87
Temp +/- -67.3
Penalties 0
Weight perform 0
Final +/- -67.3
New Rating
()
Rating 1132.4
K-factor 36
Floor 866.4
Highest 1366.4 (2026-03-01)
Min/Max +/- allowed 130.8
Blitz rating
Rating 1200
K-factor 40
Floor 700
Highest 1199 (2026-02-26)
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 (2026-02-26)
Min/Max +/- allowed 166.1
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Rooibos Open 2026 (U8-U12) Rapid 2026-08-29 2026-08-29 West Coast (WCU) 5 1248.4 4 0 783.9 -51.6 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Western Cape Women's Championship 2026 (U8) Standard 2026-08-08 2026-08-08 West Coast (WCU) 5 1248.4 5 2.5 1267.3 -4.3 Details
2 Western Cape Schools - Kings and Queens 2026 (Kings) Rapid 2026-08-15 2026-08-15 Cape Winelands (WCW) 6 1248.4 6 0 1007.3 -46.7 Details
3 Lower West Coast Top Schools 2026 (U9) Rapid 2026-05-30 2026-05-30 West Coast (WCU) 5 1331.7 4 1 1014.7 -32.3 Details
4 2026 WCSC PS Individual Championship (U7 Boys) Standard 2026-05-16 2026-05-17 Overberg (WOS) 6 1330.8 6 3.5 1346.6 1 Details
5 West Coast Schools Prestige Individuals Championships 2026 (U7) Rapid 2026-02-28 2026-03-07 West Coast (WCU) 12 1199.9 12 11 1552.9 130.8 Details
6 Lower West Coast Schools Prestige Individuals Championship 2026 (U9 Girls) Rapid 2026-02-14 2026-02-14 West Coast (WCU) 5 1200 3 1.5 1200.6 -0.5 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 40
Wins 18
Draws 3
Losses 19
White 21
Black 19
White wins 9
Black wins 9
Score 19.5
Percent 48.8
Dp -10.6
AOR 1257.9
Performance 1247.3
Game statistics (History)
Games 40
Wins 18
Draws 3
Losses 19
White 21
Black 19
White wins 9
Black wins 9
Score 19.5
Percent 48.8
Dp -10.6
AOR 1257.9
Performance 1247.3
Rankings (Main)
National
Overall 8744
Gender 7015
Age group 63
Gender/Age 44
Provincial
Overall 2527
Gender 1940
Age group 34
Gender/Age 24
Regional
Overall 271
Gender 198
Age group 1
Gender/Age 1
Rankings (Standard)
National
Overall 7235
Gender 5734
Age group 62
Gender/Age 43
Provincial
Overall 2063
Gender 1537
Age group 36
Gender/Age 24
Regional
Overall 160
Gender 109
Age group 1
Gender/Age 1
Rankings (Rapid)
National
Overall 4453
Gender 3476
Age group 30
Gender/Age 22
Provincial
Overall 1707
Gender 1301
Age group 14
Gender/Age 11
Regional
Overall 354
Gender 255
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 40
Score 19.5
Percent 48.8
Aor 1257.9
Dp -10.6
Prat 1247.3
Performance (12 months)
Games 40
Score 19.5
Percent 48.8
Aor 1257.9
Dp -10.6
Prat 1247.3
Performance (History)
Games 40
Score 19.5
Percent 48.8
Aor 1257.9
Dp -10.6
Prat 1247.3
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Juganan, X (Xavier) 5 3 2 Lower West Coast Schools Prestige Individuals Championship 2026 (U9 Girls) West Coast Schools Prestige Individuals Championships 2026 (U7) Details
Overall 2 Limert, G (Geo) 4 2 2 West Coast Schools Prestige Individuals Championships 2026 (U7) West Coast Schools Prestige Individuals Championships 2026 (U7) Details
Overall 3 Coetzee, K (Kaleb) 4 2 2 West Coast Schools Prestige Individuals Championships 2026 (U7) West Coast Schools Prestige Individuals Championships 2026 (U7) Details
Overall 4 Edons, E (Elijah) 2 1 1 Western Cape Schools - Kings and Queens 2026 (Kings) Western Cape Schools - Kings and Queens 2026 (Kings) Details
Overall 5 Louw, A (Adriaan) 2 1 1 Western Cape Schools - Kings and Queens 2026 (Kings) Western Cape Schools - Kings and Queens 2026 (Kings) Details
Rapid 1 Juganan, X (Xavier) 5 3 2 Lower West Coast Schools Prestige Individuals Championship 2026 (U9 Girls) West Coast Schools Prestige Individuals Championships 2026 (U7) Details
Rapid 2 Limert, G (Geo) 4 2 2 West Coast Schools Prestige Individuals Championships 2026 (U7) West Coast Schools Prestige Individuals Championships 2026 (U7) Details
Rapid 3 Coetzee, K (Kaleb) 4 2 2 West Coast Schools Prestige Individuals Championships 2026 (U7) West Coast Schools Prestige Individuals Championships 2026 (U7) Details
Rapid 4 Edons, E (Elijah) 2 1 1 Western Cape Schools - Kings and Queens 2026 (Kings) Western Cape Schools - Kings and Queens 2026 (Kings) Details
Rapid 5 Terblanche, T (Tiaan) 2 1 1 Western Cape Schools - Kings and Queens 2026 (Kings) Western Cape Schools - Kings and Queens 2026 (Kings) Details