Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Isaac De Beer

1170333153
Nelson Mandela Bay (ENM)
Personal
Main rating
Rating 1198.1
K-factor 40
Floor 699
Highest 1199 (2026-02-28)
Min/Max +/- allowed 166
Rating Change
()
Games 7
Score 4
We 2.84
SWe 1.09
Temp +/- 43.7
Penalties 0
Weight perform 0
Final +/- +43.7
New Rating
()
Rating 1241.9
K-factor 36
Floor 741.9
Highest 1241.9 (2026-04-01)
Min/Max +/- allowed 156.2
Standard rating
Rating 1197.8
K-factor 40
Floor 699
Highest 1199 (2026-02-28)
Min/Max +/- allowed 166.1
Rating Change
()
Games 7
Score 4
We 2.86
SWe 1.14
Temp +/- 45.8
Penalties 0
Weight perform 0
Final +/- +45.8
New Rating
()
Rating 1243.6
K-factor 36
Floor 743.6
Highest 1243.6 (2026-04-01)
Min/Max +/- allowed 155.8
Rapid rating
Rating 1200
K-factor 40
Floor 700
Highest 1199 (2026-02-28)
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 (2026-02-28)
Min/Max +/- allowed 166.1
Blitz rating
Rating 1200
K-factor 40
Floor 700
Highest 1199 (2026-02-28)
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 (2026-02-28)
Min/Max +/- allowed 166.1
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Eastern Cape Open 2026 (U8-U14 Boys) Standard 2026-04-11 2026-04-12 Buffalo City (EBC) 7 1198.1 7 4 1345.5 43.7 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Pearson Chess Festival 2026 (C) Standard 2026-02-27 2026-02-28 Nelson Mandela Bay (ENM) 5 1200 5 1 1091.2 -11.6 Details
Game statistics ( )
Games 7
Wins 4
Draws 0
Losses 3
White 4
Black 3
White wins 2
Black wins 2
Score 4
Percent 57.1
Dp 60.7
AOR 1284.8
Performance 1345.5
Game statistics ()
Games 12
Wins 5
Draws 0
Losses 7
White 7
Black 5
White wins 2
Black wins 3
Score 5
Percent 41.7
Dp -70.8
AOR 1310.4
Performance 1239.6
Game statistics (History)
Games 12
Wins 5
Draws 0
Losses 7
White 7
Black 5
White wins 2
Black wins 3
Score 5
Percent 41.7
Dp -70.8
AOR 1310.4
Performance 1239.6
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 7
Score 4
Percent 57.1
Aor 1284.8
Dp 60.7
Prat 1345.5
Performance ()
Games 12
Score 5
Percent 41.7
Aor 1310.4
Dp -70.8
Prat 1239.6
Performance (12 months)
Games 12
Score 5
Percent 41.7
Aor 1310.4
Dp -70.8
Prat 1239.6
Performance (History)
Games 12
Score 5
Percent 41.7
Aor 1310.4
Dp -70.8
Prat 1239.6
Top 5 opponents most often played
Player not found.
Type # Opponent Games White Black First tournament Last tournament Details