Chess South Africa
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Chess South Africa
Davidse, Z (Zac)
Dob:
2011/03/23 (U14)
Gender:
Male
Chess SA id:
1110149777
FIDE id:
Region:
Cape Winelands (WCW)
Citizen:
RSA
Title(s):
Last active:
2024/02/10 (100 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
1092.7
Curent Weighted rating
1128.7
Curent Weighted performance
881.0
Current official/published rating (highest between Raw, WR and WP)
1128.7
Current floor (min rating allowed)
667.5
Current highest rating achieved
1167.5
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)
±193.2
Current Raw change used (final)
0.0
Projected new Raw rating
1092.7
Projected new Weighed rating
1124.0
Projected new Weighted performance
881.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1124.0
Projected effective change (new Official - current Official)
-4.7
Projected new highest rating
1167.5
Projected new floor
667.5
Projected new K-facor
40
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
1162.4
Curent Weighted rating
1166.9
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1166.9
Current floor (min rating allowed)
662.4
Current highest rating achieved
1162.4
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)
±174.9
Current Raw change used (final)
0.0
Projected new Raw rating
1162.4
Projected new Weighed rating
1165.9
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1165.9
Projected effective change (new Official - current Official)
-1.0
Projected new highest rating
1162.4
Projected new floor
662.4
Projected new K-facor
40
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
1076.0
Curent Weighted rating
1120.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1120.5
Current floor (min rating allowed)
658.8
Current highest rating achieved
1158.8
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)
±197.9
Current Raw change used (final)
0.0
Projected new Raw rating
1076.0
Projected new Weighed rating
1114.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1114.7
Projected effective change (new Official - current Official)
-5.8
Projected new highest rating
1158.8
Projected new floor
658.8
Projected new K-facor
40
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)
658.8
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
658.8
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
Cape Winelands Schools - PS Trials 1 2024 (U13 Boys)
2024/02/10
2024/02/10
Cape Winelands (WCW)
Rapid
35
0.66
6
6
2.0
1099.6
1072.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
5
Cape Winelands Schools - PS Trials 1 2024 (U13 Boys)
2024/02/10
2024/02/10
Cape Winelands (WCW)
Rapid
35
0.66
6
6
2.0
1099.6
1072.0
Analysis
4
Worcester Knock-Out 2023 (U13 Boys)
2023/10/14
2023/10/14
Cape Winelands (WCW)
Rapid
30
0.60
6
5
0.0
1152.6
1158.8
Analysis
3
Stellenbosch Primary Chess Tournament 2023 (U14)
2023/08/19
2023/08/19
Cape Winelands (WCW)
Rapid
30
0.60
6
6
3.0
1148.3
1152.4
Analysis
2
Rhenish Primary Tournament 2023 (U14)
2023/05/13
2023/05/13
Cape Winelands (WCW)
Rapid
30
0.60
6
5
1.5
1167.5
1200.0
Analysis
1
Cape Winelands Schools Chess - Trials 1 2023 (U13 Boys)
2023/02/18
2023/02/18
Cape Winelands (WCW)
Standard
60
0.83
5
5
1.5
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
6
2
0
4
2.0
33.3
-141.7
1203.9
1062.2
White
3
2
0
1
2.0
66.7
141.7
1200.0
1341.7
Black
3
0
0
3
0.0
0.0
-425.0
1207.7
782.7
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
6
2
0
4
2.0
33.3
-141.7
1203.9
1062.2
White
3
2
0
1
2.0
66.7
141.7
1200.0
1341.7
Black
3
0
0
3
0.0
0.0
-425.0
1207.7
782.7
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
27
7
2
18
8.0
29.6
-173.1
1198.2
1025.0
White
14
5
2
7
6.0
42.9
-60.7
1194.5
1133.8
Black
13
2
0
11
2.0
15.4
-294.2
1202.1
907.9
Standard
All
5
1
1
3
1.5
30.0
-170.0
1210.0
1040.0
White
3
0
1
2
0.5
16.7
-283.3
1212.3
929.0
Black
2
1
0
1
1.0
50.0
0.0
1206.4
1206.4
Rapid
All
22
6
1
15
6.5
29.5
-173.9
1195.5
1021.6
White
11
5
1
5
5.5
50.0
0.0
1189.7
1189.7
Black
11
1
0
10
1.0
9.1
-347.7
1201.3
853.6
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
1120192842
Muvumbi, L (Leeroy)
1
1.0
1
0
0
100.0
1099.6
425.0
1524.6
View list
2
1110161522
Adams, T (Tariq)
1
1.0
1
0
0
100.0
1148.3
425.0
1573.3
View list
3
1110118934
Boshoff, M (Matthew)
1
1.0
1
0
0
100.0
1148.3
425.0
1573.3
View list
4
2110139459
Kadji, S (Somila)
1
1.0
1
0
0
100.0
1167.5
425.0
1592.5
View list
5
1120192833
Jeacocks, E (Ezhekiel)
1
1.0
1
0
0
100.0
1099.6
425.0
1524.6
View list
6
1110149798
Van Der Walt, S (Sebastian)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
1110161375
Zulu, L (Lwazi)
1
1.0
1
0
0
100.0
1148.3
425.0
1573.3
View list
8
1100113426
Alford, N (Nathan)
1
0.5
0
1
0
50.0
1167.5
0.0
1167.5
View list
9
1100113421
Hamann, L (Louis)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
10
1090146861
Sindayihebura, J (Joshua)
1
0.0
0
0
1
0.0
1167.5
-425.0
742.5
View list
11
1110139444
Senti, S (Samuel)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
12
2110113425
Saul, R (Rebekah)
1
0.0
0
0
1
0.0
1148.3
-425.0
723.3
View list
13
1120191726
Ralaivaosaona, T (Tendrisoa Manoharay)
1
0.0
0
0
1
0.0
1099.6
-425.0
674.6
View list
14
1110132436
Parson, A (Alex)
1
0.0
0
0
1
0.0
1148.3
-425.0
723.3
View list
15
1100148002
Mostert, R (Ruan)
1
0.0
0
0
1
0.0
1152.6
-425.0
727.6
View list
16
1110132074
Kwabe, A (Awonke)
1
0.0
0
0
1
0.0
1167.5
-425.0
742.5
View list
17
1110161529
Kemp, F (Francois)
1
0.0
0
0
1
0.0
1148.3
-425.0
723.3
View list
18
1100137579
Fourie, X (Xavier)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
19
1120161518
De Waal, P (Pieter)
1
0.0
0
0
1
0.0
1099.6
-425.0
674.6
View list
20
1110140724
Chuang, G (Gareth)
1
0.0
0
0
1
0.0
1167.5
-425.0
742.5
View list