Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Sadalla, J (Johnny)
Dob:
2010/02/12 (U16)
Gender:
Male
Chess SA id:
1100192158
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2024/05/25 (7 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
1309.3
Curent Weighted rating
1219.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1309.3
Current floor (min rating allowed)
809.3
Current highest rating achieved
1309.3
Current K-factor
36
Games played this month
13
Score (S)
5.5
Expected score (We)
6.31
Difference (S-We)
-0.81
Current Raw change (no limits, including tournament time weight)
-24.2
Current min/max change allowed (with limits)
±141.9
Current Raw change used (final)
-24.2
Projected new Raw rating
1285.1
Projected new Weighed rating
1225.4
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1285.1
Projected effective change (new Official - current Official)
-24.2
Projected new highest rating
1309.3
Projected new floor
809.3
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
1325.3
Curent Weighted rating
1222.4
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1325.3
Current floor (min rating allowed)
825.3
Current highest rating achieved
1325.3
Current K-factor
36
Games played this month
13
Score (S)
5.5
Expected score (We)
6.59
Difference (S-We)
-1.09
Current Raw change (no limits, including tournament time weight)
-39.2
Current min/max change allowed (with limits)
±138.7
Current Raw change used (final)
-39.2
Projected new Raw rating
1286.1
Projected new Weighed rating
1228.4
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1286.1
Projected effective change (new Official - current Official)
-39.2
Projected new highest rating
1325.3
Projected new floor
825.3
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
1210.8
Curent Weighted rating
1201.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1210.8
Current floor (min rating allowed)
710.8
Current highest rating achieved
1210.8
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)
±163.3
Current Raw change used (final)
0.0
Projected new Raw rating
1210.8
Projected new Weighed rating
1202.5
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1210.8
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1210.8
Projected new floor
710.8
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)
710.8
Current highest rating achieved
0.0
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
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
0.0
Projected new floor
710.8
Projected new K-facor
40
Tournaments
History
Tournament:
Chess Power House May Open 2024 (B)
Start:
2024/05/25
End:
2024/05/25
Host:
GJM
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
2.0
Main rating:
1309.3
Rating gain/loss:
10.2
Type rating:
1325.3
Rating gain/loss:
7.2
Analysis
Tournament:
D6 High School Individual Final 2024 (U15 Boys)
Start:
2024/05/18
End:
2024/05/18
Host:
GE
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
4
Games:
4
Score:
2.5
Main rating:
1309.3
Rating gain/loss:
-4.5
Type rating:
1325.3
Rating gain/loss:
-8.3
Analysis
Tournament:
2024 Mid Gauteng Open Chess Tournament (U16)
Start:
2024/05/02
End:
2024/05/02
Host:
GTP
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
4
Games:
4
Score:
1.0
Main rating:
1309.3
Rating gain/loss:
-29.9
Type rating:
1325.3
Rating gain/loss:
-38.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
6
Chess Power House May Open 2024 (B)
2024/05/25
2024/05/25
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1309.3
1325.3
Analysis
5
D6 High School Individual Final 2024 (U15 Boys)
2024/05/18
2024/05/18
Ekurhuleni (GE)
Standard
60
0.83
5
4
2.5
1309.3
1325.3
Analysis
4
2024 Mid Gauteng Open Chess Tournament (U16)
2024/05/02
2024/05/02
Tshwane (GTP)
Standard
60
0.83
5
4
1.0
1309.3
1325.3
Analysis
3
Ekurhuleni Open 2024 (C)
2024/04/06
2024/04/06
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1273.4
1282.8
Analysis
2
Ekurhuleni North Chess Club Open Tournament 2024 (C)
2024/03/02
2024/03/02
Ehlanzeni (MEN)
Rapid
30
0.60
7
7
4.0
1269.7
1200.0
Analysis
1
2024 Constantiapark Open (C)
2024/02/17
2024/02/17
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1200.0
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
6
Chess Power House May Open 2024 (B)
2024/05/25
2024/05/25
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1309.3
1325.3
Analysis
5
D6 High School Individual Final 2024 (U15 Boys)
2024/05/18
2024/05/18
Ekurhuleni (GE)
Standard
60
0.83
5
4
2.5
1309.3
1325.3
Analysis
4
2024 Mid Gauteng Open Chess Tournament (U16)
2024/05/02
2024/05/02
Tshwane (GTP)
Standard
60
0.83
5
4
1.0
1309.3
1325.3
Analysis
3
Ekurhuleni Open 2024 (C)
2024/04/06
2024/04/06
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1273.4
1282.8
Analysis
2
Ekurhuleni North Chess Club Open Tournament 2024 (C)
2024/03/02
2024/03/02
Ehlanzeni (MEN)
Rapid
30
0.60
7
7
4.0
1269.7
1200.0
Analysis
1
2024 Constantiapark Open (C)
2024/02/17
2024/02/17
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
30
17
1
12
17.5
58.3
70.8
1282.9
1353.8
White
16
11
1
4
11.5
71.9
185.9
1241.5
1427.4
Black
14
6
0
8
6.0
42.9
-60.7
1330.3
1269.6
Standard
All
23
13
1
9
13.5
58.7
73.9
1298.3
1372.2
White
12
8
1
3
8.5
70.8
177.1
1273.8
1450.9
Black
11
5
0
6
5.0
45.5
-38.6
1325.0
1286.4
Rapid
All
7
4
0
3
4.0
57.1
60.7
1232.4
1293.1
White
4
3
0
1
3.0
75.0
212.5
1144.4
1356.9
Black
3
1
0
2
1.0
33.3
-141.7
1349.7
1208.0
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
30
17
1
12
17.5
58.3
70.8
1282.9
1353.8
White
16
11
1
4
11.5
71.9
185.9
1241.5
1427.4
Black
14
6
0
8
6.0
42.9
-60.7
1330.3
1269.6
Standard
All
23
13
1
9
13.5
58.7
73.9
1298.3
1372.2
White
12
8
1
3
8.5
70.8
177.1
1273.8
1450.9
Black
11
5
0
6
5.0
45.5
-38.6
1325.0
1286.4
Rapid
All
7
4
0
3
4.0
57.1
60.7
1232.4
1293.1
White
4
3
0
1
3.0
75.0
212.5
1144.4
1356.9
Black
3
1
0
2
1.0
33.3
-141.7
1349.7
1208.0
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
1090101509
Janse Van Vuuren, A (Alexander)
2
1.5
1
1
0
75.0
1289.5
212.5
1502.0
View list
2
1070112457
Bhula, S (Shyam Hitesh)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
3
208066161
Bhika, J (Jyotikka)
1
1.0
1
0
0
100.0
1269.7
425.0
1694.7
View list
4
1090305164
Beifus, A (Aiden)
1
1.0
1
0
0
100.0
1309.3
425.0
1734.3
View list
5
1120137394
Du Bruyn, D (Dylan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
6
1100112365
Groenewald, S (Stefan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
7
1090161976
Greenwood, D (Derick)
1
1.0
1
0
0
100.0
1269.7
425.0
1694.7
View list
8
1100305263
Mashele, V (Vuthlari)
1
1.0
1
0
0
100.0
1309.3
425.0
1734.3
View list
9
1100097226
Marais, JS (Jacobus)
1
1.0
1
0
0
100.0
1309.3
425.0
1734.3
View list
10
2120135381
Naude, J (Juliette)
1
1.0
1
0
0
100.0
1273.4
425.0
1698.4
View list
11
2080153006
Mogotsi, R (Reatlehile)
1
1.0
1
0
0
100.0
1269.7
425.0
1694.7
View list
12
1940139647
Sefuli, T (Thato)
1
1.0
1
0
0
100.0
1309.3
425.0
1734.3
View list
13
2140301423
Shunmugam, S (Siana)
1
1.0
1
0
0
100.0
1273.4
425.0
1698.4
View list
14
1100116478
Smith, H (Henre)
1
1.0
1
0
0
100.0
1273.4
425.0
1698.4
View list
15
1110305271
Valashiya, B (Banzi)
1
1.0
1
0
0
100.0
1309.3
425.0
1734.3
View list
16
1090302554
Van Der Westhuizen, N (Niel)
1
1.0
1
0
0
100.0
1273.4
425.0
1698.4
View list
17
2150143035
Van Zyl, S (Sanli)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
18
1120135549
Segal, J (Jamie)
1
0.0
0
0
1
0.0
1309.3
-425.0
884.3
View list
19
1090114761
Saunders, W (Wayde)
1
0.0
0
0
1
0.0
1269.7
-425.0
844.7
View list
20
1060147252
Robinson, R (Rhys David)
1
0.0
0
0
1
0.0
1273.4
-425.0
848.4
View list