Chess South Africa
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Chess South Africa
Marais, I (Ivan)
Dob:
2014/12/10 (U12)
Gender:
Male
Chess SA id:
1140192028
FIDE id:
Region:
Ekurhuleni (GE)
Citizen:
RSA
Title(s):
Last active:
2024/03/09 (99 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
1189.9
Current Weighted rating
1196.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1196.8
Current highest rating achieved
1189.9
Current floor (min rating allowed)
689.9
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)
±168.2
Current Raw change used (final)
0.0
Projected new Raw rating
1189.9
Projected new Weighed rating
1100.9
Projected new Weighted performance
637.1
Projected new final Raw rating (if new WP > new Raw)
1189.9
Projected new highest rating
1189.9
Projected new floor
689.9
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1189.9
Projected effective change (new Official - current Official)
-6.9
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
0.0
Current floor (min rating allowed)
700.0
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)
±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
0.0
Projected new floor
700.0
Projected new K-facor
40
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
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
1184.8
Current Weighted rating
1195.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1195.0
Current highest rating achieved
1184.8
Current floor (min rating allowed)
684.8
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)
±169.4
Current Raw change used (final)
0.0
Projected new Raw rating
1184.8
Projected new Weighed rating
1099.2
Projected new Weighted performance
670.7
Projected new final Raw rating (if new WP > new Raw)
1184.8
Projected new highest rating
1184.8
Projected new floor
684.8
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1184.8
Projected effective change (new Official - current Official)
-10.2
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
0.0
Current floor (min rating allowed)
700.0
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)
±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
0.0
Projected new floor
700.0
Projected new K-facor
40
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.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
Benoni Primary School Cluster Individuals 2024 (U11 Boys)
2024/03/09
2024/03/09
Ekurhuleni (GE)
Rapid
30
0.60
5
5
2.5
1187.0
1178.0
Analysis
1
Laerskool Northmead Proewe 2024 (U11)
2024/02/10
2024/02/10
Ekurhuleni (GE)
Rapid
30
0.60
5
5
2.0
1200.0
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
2
Benoni Primary School Cluster Individuals 2024 (U11 Boys)
2024/03/09
2024/03/09
Ekurhuleni (GE)
Rapid
30
0.60
5
5
2.5
1187.0
1178.0
Analysis
1
Laerskool Northmead Proewe 2024 (U11)
2024/02/10
2024/02/10
Ekurhuleni (GE)
Rapid
30
0.60
5
5
2.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
10
4
1
5
4.5
45.0
-42.5
1199.7
1157.2
White
5
3
0
2
3.0
60.0
85.0
1199.3
1284.3
Black
5
1
1
3
1.5
30.0
-170.0
1200.0
1030.0
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
10
4
1
5
4.5
45.0
-42.5
1199.7
1157.2
White
5
3
0
2
3.0
60.0
85.0
1199.3
1284.3
Black
5
1
1
3
1.5
30.0
-170.0
1200.0
1030.0
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
10
4
1
5
4.5
45.0
-42.5
1199.7
1157.2
White
5
3
0
2
3.0
60.0
85.0
1199.3
1284.3
Black
5
1
1
3
1.5
30.0
-170.0
1200.0
1030.0
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
10
4
1
5
4.5
45.0
-42.5
1199.7
1157.2
White
5
3
0
2
3.0
60.0
85.0
1199.3
1284.3
Black
5
1
1
3
1.5
30.0
-170.0
1200.0
1030.0
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1140192019
Byleveldt, H (Hanu)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
2
1140192041
Viviers, C (Christopher)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
1130301237
Mosotu, B (Bk)
1
1.0
1
0
0
100.0
1187.0
425.0
1612.0
View list
4
1140301229
Heydenreich, J (Jayden)
1
1.0
1
0
0
100.0
1187.0
425.0
1612.0
View list
5
1130301228
Gatsios, P (Panayiotis)
1
0.5
0
1
0
50.0
1187.0
0.0
1187.0
View list
6
1140151776
Venter, L (Luan)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
7
1140192040
Van Schalkwyk, T (Tj)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
8
2130152988
Swanevelder, Z (Zianey)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
9
1140301240
Nortje, W (Wesley)
1
0.0
0
0
1
0.0
1187.0
-425.0
762.0
View list
10
1130301236
Meyer, G (Giancarlo)
1
0.0
0
0
1
0.0
1187.0
-425.0
762.0
View list