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

PLAYER PAGE

Mieke Johnstone

2140334850
Nkangala (MNW)
Personal
Main rating
Rating 1117.1
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
Min/Max +/- allowed 166
Rating Change
()
Games 5
Score 2
We 1.82
SWe 0.15
Temp +/- 6.1
Penalties 0
Weight perform 0
Final +/- +6.1
New Rating
()
Rating 1123.2
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
Min/Max +/- allowed 165.8
Standard rating
Rating 1161.6
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 5
Score 2
We 2.13
SWe -0.13
Temp +/- -5.4
Penalties 0
Weight perform 0
Final +/- -5.4
New Rating
()
Rating 1156.3
K-factor 40
Floor 700
Highest 1199.9 (2026-03-01)
Min/Max +/- allowed 165.8
Rapid rating
Rating 1088.4
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 1088.4
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
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Mpumalanga Closed Championship 2026 (U14 Girls) Standard 2026-09-26 2026-09-26 Gert Sibande (MGS) 5 1117.1 5 2 1156.8 6.1 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Emalahleni Spring Open 2026 (U13) Standard 2026-09-19 2026-09-20 Nkangala (MNW) 5 1144.8 4 1 971.2 -27.7 Details
2 Middelburg Country Club Teams Event March 2026 (Primary School) Rapid 2026-03-21 2026-03-21 Nkangala (MNW) 6 1200 6 0 840.9 -55.2 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 15
Wins 3
Draws 0
Losses 12
White 8
Black 7
White wins 1
Black wins 2
Score 3
Percent 20
Dp -255
AOR 1235.9
Performance 980.9
Game statistics (History)
Games 15
Wins 3
Draws 0
Losses 12
White 8
Black 7
White wins 1
Black wins 2
Score 3
Percent 20
Dp -255
AOR 1235.9
Performance 980.9
Rankings (Main)
National
Overall 17588
Gender 4468
Age group 3728
Gender/Age 1139
Provincial
Overall 844
Gender 165
Age group 231
Gender/Age 57
Regional
Overall 174
Gender 31
Age group 33
Gender/Age 5
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 15
Score 3
Percent 20
Aor 1235.9
Dp -255
Prat 980.9
Performance (12 months)
Games 15
Score 3
Percent 20
Aor 1235.9
Dp -255
Prat 980.9
Performance (History)
Games 15
Score 3
Percent 20
Aor 1235.9
Dp -255
Prat 980.9
Top 5 opponents most often played
Player not found.
Type # Opponent Games White Black First tournament Last tournament Details