Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Mangana, J (Jan)
Dob:
2006/06/02 (U20)
Gender:
Male
Chess SA id:
1060115207
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2023/05/19 (403 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1021.9
Current Weighted rating
1031.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1031.2
Current highest rating achieved
1072.8
Current floor (min rating allowed)
572.8
Current K-factor
40
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±213.7
Current Raw change used (final)
0.0
Projected new Raw rating
1021.9
Projected new Weighed rating
947.8
Projected new Weighted performance
346.3
Projected new final Raw rating (if new WP > new Raw)
1021.9
Projected new highest rating
1072.8
Projected new floor
572.8
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1021.9
Projected effective change (new Official - current Official)
-9.3
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1050.0
Current Weighted rating
1050.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1050.0
Current highest rating achieved
1050.0
Current floor (min rating allowed)
550.0
Current K-factor
40
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±205.3
Current Raw change used (final)
0.0
Projected new Raw rating
1050.0
Projected new Weighed rating
966.0
Projected new Weighted performance
178.7
Projected new final Raw rating (if new WP > new Raw)
1050.0
Projected new highest rating
1050.0
Projected new floor
550.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1050.0
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1084.0
Current Weighted rating
1105.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1105.3
Current highest rating achieved
1084.0
Current floor (min rating allowed)
584.0
Current K-factor
40
s
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±195.6
Current Raw change used (final)
0.0
Projected new Raw rating
1084.0
Projected new Weighed rating
1014.7
Projected new Weighted performance
218.5
Projected new final Raw rating (if new WP > new Raw)
1084.0
Projected new highest rating
1084.0
Projected new floor
584.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1084.0
Projected effective change (new Official - current Official)
-21.3
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
3
Gauteng Open Arnold Classic 2023 (LSEN SID)
2023/05/19
2023/05/19
Tshwane (GTP)
Rapid
30
0.60
7
6
0.0
1072.8
1200.0
Analysis
2
2019 Gauteng Disabled Schools Individual Chess Championships (U15 SID)
2019/05/25
2019/05/25
Tshwane (GTP)
Standard
60
0.83
5
4
0.0
1200.0
1200.0
Analysis
1
2019 SWVG Arnold Classic (U16 SID)
2019/05/17
2019/05/17
Tshwane (GTP)
Standard
60
0.83
5
5
0.5
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Standard
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Rapid
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
15
0
1
14
0.5
3.3
-396.7
1201.4
804.8
White
6
0
0
6
0.0
0.0
-425.0
1200.0
775.0
Black
9
0
1
8
0.5
5.6
-377.8
1202.4
824.6
Standard
All
9
0
1
8
0.5
5.6
-377.8
1212.1
834.3
White
4
0
0
4
0.0
0.0
-425.0
1200.0
775.0
Black
5
0
1
4
0.5
10.0
-340.0
1221.7
881.7
Rapid
All
6
0
0
6
0.0
0.0
-425.0
1185.5
760.5
White
2
0
0
2
0.0
0.0
-425.0
1200.0
775.0
Black
4
0
0
4
0.0
0.0
-425.0
1178.2
753.2
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1050115205
Van Rooyen, E (Edghardt)
2
0.0
0
0
2
0.0
1200.0
-425.0
775.0
View list
2
103081164
Nyauza, M (Mpho)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
3
2040115384
Truter, M (Megan)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
4
1020155717
Shalang, M (Molefi)
1
0.0
0
0
1
0.0
1072.8
-425.0
647.8
View list
5
1080154123
Scheepers, D (Danheen)
1
0.0
0
0
1
0.0
1072.8
-425.0
647.8
View list
6
1060115206
Nzimande, M (Mpendulo)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
7
1130155711
Nyuaza, M (Mpho)
1
0.0
0
0
1
0.0
1072.8
-425.0
647.8
View list
8
1050115204
Nhlapo, M (Mduduzi)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
9
2050154122
Ndamse, O (Onebango)
1
0.0
0
0
1
0.0
1072.8
-425.0
647.8
View list
10
1060111974
Mncube, M (Mcebiseni)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
11
1070155725
Maiwele, M (Musa)
1
0.0
0
0
1
0.0
1072.8
-425.0
647.8
View list
12
103095924
Macwele, M (Musawenkosi)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
13
1070155687
Loubser, D (Daniel)
1
0.0
0
0
1
0.0
1072.8
-425.0
647.8
View list
14
1050115383
Coxen, V (Vusi)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list