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

PLAYER PAGE

Gysbert Koen

1140334453
Sedibeng (GSV)
Personal
Main rating
Rating 1185.6
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
Min/Max +/- allowed 166
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1185.6
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
Min/Max +/- allowed 165.8
Standard rating
Rating 1182.3
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
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 1182.3
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
Min/Max +/- allowed 165.8
Rapid rating
Rating 1200
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
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 40
Floor 700
Highest 1199.9 (2026-03-01)
Min/Max +/- allowed 165.8
Blitz rating
Rating 1200
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
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 40
Floor 700
Highest 1199.9 (2026-03-01)
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 Chess-in-the-Vaal Open 18 April 2026 (E) Standard 2026-04-18 2026-04-18 Sedibeng (GSV) 5 1178.2 5 2.5 1209.3 7.4 Details
2 Laer Volkskool Chess Open 14 March 2026 (E) Standard 2026-03-14 2026-03-14 Sedibeng (GSV) 5 1200 5 2 1095.2 -21.8 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 10
Wins 4
Draws 1
Losses 5
White 5
Black 5
White wins 1
Black wins 3
Score 4.5
Percent 45
Dp -42.5
AOR 1194.8
Performance 1152.3
Game statistics (History)
Games 10
Wins 4
Draws 1
Losses 5
White 5
Black 5
White wins 1
Black wins 3
Score 4.5
Percent 45
Dp -42.5
AOR 1194.8
Performance 1152.3
Rankings (Main)
National
Overall 13980
Gender 10815
Age group 2811
Gender/Age 2016
Provincial
Overall 4732
Gender 3579
Age group 962
Gender/Age 677
Regional
Overall 651
Gender 499
Age group 154
Gender/Age 111
Rankings (Standard)
National
Overall 11007
Gender 8384
Age group 2224
Gender/Age 1561
Provincial
Overall 3811
Gender 2841
Age group 772
Gender/Age 523
Regional
Overall 476
Gender 362
Age group 113
Gender/Age 80
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 10
Score 4.5
Percent 45
Aor 1194.8
Dp -42.5
Prat 1152.3
Performance (12 months)
Games 10
Score 4.5
Percent 45
Aor 1194.8
Dp -42.5
Prat 1152.3
Performance (History)
Games 10
Score 4.5
Percent 45
Aor 1194.8
Dp -42.5
Prat 1152.3
Top 5 opponents most often played
Player not found.
Type # Opponent Games White Black First tournament Last tournament Details