Chess South Africa
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Chess South Africa
Kajiwa, I (Irvin)
Dob:
2013/01/28 (U12)
Gender:
Male
Chess SA id:
1130149897
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2024/03/09 (53 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
Curent Raw rating
1293.0
Curent Weighted rating
1250.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1293.0
Current floor (min rating allowed)
793.0
Current highest rating achieved
1293.0
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)
±145.2
Current Raw change used (final)
0.0
Projected new Raw rating
1293.0
Projected new Weighed rating
1255.4
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1293.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1293.0
Projected new floor
793.0
Projected new K-facor
36
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
Curent Raw rating
1310.9
Curent Weighted rating
1259.8
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1310.9
Current floor (min rating allowed)
810.9
Current highest rating achieved
1310.9
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)
±141.6
Current Raw change used (final)
0.0
Projected new Raw rating
1310.9
Projected new Weighed rating
1265.4
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1310.9
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1310.9
Projected new floor
810.9
Projected new K-facor
36
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
Curent Raw rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
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
1200.0
Projected new Weighted performance
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
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
Curent Raw rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
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
1200.0
Projected new Weighted performance
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
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
1
Eden School Chess Trials 1 2024 (U11 Boys)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1267.0
1278.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
5
Eden School Chess Trials 1 2024 (U11 Boys)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1267.0
1278.9
Analysis
4
Eden Top Schools 2023 (U11 Mix)
2023/08/19
2023/08/19
Eden District (WEG)
Standard
60
0.83
5
4
3.0
1236.5
1242.9
Analysis
3
Eden Trials 2+3 2023 (U12)
2023/04/15
2023/05/13
Eden District (WEG)
Standard
60
0.83
10
0
0.0
1236.5
1242.9
Analysis
2
Eden Trails 1 2023 (U11 Boys)
2023/03/11
2023/03/11
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1215.6
1218.4
Analysis
1
2023 Knysna School Trials #1 (U7-U11)
2023/02/04
2023/02/04
Eden District (WEG)
Standard
65
0.85
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
5
3
0
2
3.0
60.0
85.0
1337.3
1422.3
White
3
2
0
1
2.0
66.7
141.7
1296.6
1438.3
Black
2
1
0
1
1.0
50.0
0.0
1398.3
1398.3
Standard
All
5
3
0
2
3.0
60.0
85.0
1337.3
1422.3
White
3
2
0
1
2.0
66.7
141.7
1296.6
1438.3
Black
2
1
0
1
1.0
50.0
0.0
1398.3
1398.3
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
19
11
2
6
12.0
63.2
111.8
1259.8
1371.6
White
11
9
1
1
9.5
86.4
309.1
1218.0
1527.1
Black
8
2
1
5
2.5
31.3
-159.4
1317.2
1157.8
Standard
All
19
11
2
6
12.0
63.2
111.8
1259.8
1371.6
White
11
9
1
1
9.5
86.4
309.1
1218.0
1527.1
Black
8
2
1
5
2.5
31.3
-159.4
1317.2
1157.8
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1130134042
Coleman, F (Ferdinand)
2
1.0
1
0
1
50.0
1251.8
0.0
1251.8
View list
2
1140132056
Willemse, E (Elizur)
1
1.0
1
0
0
100.0
1215.6
425.0
1640.6
View list
3
1120150003
Van Aswegen, K (Kearon)
1
1.0
1
0
0
100.0
1236.5
425.0
1661.5
View list
4
1140300752
Bruinders, N (Nate)
1
1.0
1
0
0
100.0
1267.0
425.0
1692.0
View list
5
2130149892
Bothma, S (Skye)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
1120154635
Bam, C (Cayleb)
1
1.0
1
0
0
100.0
1236.5
425.0
1661.5
View list
7
1140161642
Abrahams, M (Matthew)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
8
1140150044
Abrahams, M (Marshal)
1
1.0
1
0
0
100.0
1267.0
425.0
1692.0
View list
9
1140152601
Magela, L (Lingomso)
1
1.0
1
0
0
100.0
1267.0
425.0
1692.0
View list
10
2120137912
Magela, A (Alupheli)
1
1.0
1
0
0
100.0
1215.6
425.0
1640.6
View list
11
1130152563
Madziwa, K (Kupakwashe)
1
1.0
1
0
0
100.0
1215.6
425.0
1640.6
View list
12
1130149896
Kachingwe, R (Raymond)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
13
1120149902
Tobey, B (Buhle)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
14
1140136966
Van Staden, P (Pearson)
1
0.0
0
0
1
0.0
1267.0
-425.0
842.0
View list
15
1130149901
Ruiters, L (Liam)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
16
1120119460
Chaonwa, N (Nathan)
1
0.0
0
0
1
0.0
1215.6
-425.0
790.6
View list
17
1110137903
Herman, A (Aqeem)
1
0.0
0
0
1
0.0
1236.5
-425.0
811.5
View list
18
1130142292
Glynn, A (Alexander)
1
0.0
0
0
1
0.0
1215.6
-425.0
790.6
View list