PLAYER PAGE

Personal

Sadalla, J (Johnny)

Chess SA id

1100192158

FIDE id

?

Date of birth

2010-02-12 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

No

Last active game

2025-09-21

Personal details last changed

1900-01-01

Junior GPX Games

35

Junior GPX Points

1463.7

Item Main Standard Rapid Blitz
Rating 1527 1522.6 1195.4 1200
Raw rating 1516.1 1515.6 1195.4 1200
Weighted rating 1396.3 1414.4 1194.5 1200
Weighted performance 1527 1522.6 0 0
Floor 1016.1 1015.6 710.8 700
K-factor 32 32 36 36
Min/Max rating change allowed 105.7 105.8 166.9 165.8
Highest rating 1575.5
2024-02-01
1568
2024-02-01
1237.1
2024-03-01
1200
2024-02-01
Highest raw rating 1516.1
2025-09-30
1515.6
2025-09-30
1210.8
2024-04-01
1200
2024-02-01
Highest weighted rating 1493.2
2024-10-01
1485.9
2024-10-01
1210.8
2024-07-01
1200
2024-02-01
Highest weighted performance 1575.5
2024-02-01
1568
2024-02-01
1237.1
2024-03-01
1200
2024-02-01

Prediction
Item Main Standard Rapid Blitz
Rating change -0.5 -0.5 0 0
New rating 1526.5 1522.1 1195.4 1200
Analysis
Rating 1527 1522.6 1195.4 1200
Raw rating 1516.1 1515.6 1195.4 1200
Weighted rating 1396.3 1414.4 1194.5
Weighted performance 1527 1522.6 0
K-factor 32 32 36 36
Floor 1016.1 1015.6 710.8 700
Max/Min rating change allowed 105.7 105.8 166.9 165.8
Games 0 0 0 0
Score 0 0 0 0
Expected score 0 0 0 0
Score-Expected 0 0 0 0
Temp raw +/- 0 0 0 0
Final raw +/- 0 0 0 0
New raw rating 1516.1 1515.6 1195.4 1200
New weighted rating 1410 1426.6 1194.4 1200
New weighted performance 1526.5 1522.1 0 0
Temp new rating 1526.5 1522.1 1195.4 1200
Temp new rating +/- -0.5 -0.5 0 0
Final new rating +/- -0.5 -0.5 0 0
New rating 1526.5 1522.1 1195.4 1200
New K-factor 32 32 36 36
New floor 1016.1 1015.6 710.8 700

Item Main Standard Rapid Blitz
0 0 0 0
30 30 0 0
74 58 16 0
0 0 0 0
0 0 0 0
0 0 0 0
History 104 88 16 0

Games since
Main
104
Standard
88
Rapid
16
Blitz
0
Gender Male
Age group U16
Region Tshwane (GTP)
Province Gauteng (GT)
Main
RSA Province Region
Overall 1063 375 142
Male 927 325 124
U16 131 43 17
U16 Male 107 34 14
Standard
RSA Province Region
Overall 1011 379 145
Male 877 328 127
U16 125 43 17
U16 Male 104 34 14
Rapid
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
U16 -1 -1 -1
U16 Male -1 -1 -1
Blitz
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
U16 -1 -1 -1
U16 Male -1 -1 -1

Games Score % Dp AvgOpp Performance
Main 0 0 0 0 0 0
Standard 0 0 0 0 0 0
Rapid 0 0 0 0 0 0
Blitz 0 0 0 0 0 0
Games Score % Dp AvgOpp Performance
Main 30 22 73.33 198.3 1326.9 1525.3
Standard 30 22 73.33 198.3 1326.9 1525.3
Rapid 0 0 0 0 0 0
Blitz 0 0 0 0 0 0
History
Games Score % Dp AvgOpp Performance
Main 104 65 62.5 106.2 1302.7 1409
Standard 88 57 64.77 125.6 1316 1441.5
Rapid 16 8 50 0 1229.9 1229.9
Blitz 0 0 0 0 0 0

Date Main Standard Rapid Blitz
2025-09-30 1516.1 1515.6 1195.4 1200
2025-09-01 1497.3 1491.6 1195.4 1200
2025-08-01 1493.2 1485.9 1195.4 1200
2025-07-01 1493.2 1485.9 1195.4 1200
2025-06-01 1469.3 1459.3 1195.4 1200
2025-05-01 1380.9 1413 1195.4 1200
2025-04-01 1380.9 1413 1195.4 1200
2025-03-01 1380.9 1413 1195.4 1200
2025-02-01 1364.7 1404.5 1194.5 1200
2025-01-01 1364.7 1404.5 1179.1 1200
2024-12-01 1330.9 1378.6 1179.1 1200
2024-11-01 1330.9 1378.6 1179.1 1200
2024-10-01 1330.9 1378.6 1179.1 1200
2024-09-01 1347.8 1387.2 1199.3 1200
2024-08-01 1347.8 1387.2 1199.3 1200
2024-07-01 1329.1 1337.5 1210.8 1200
2024-06-01 1285.1 1300.8 1210.8 1200
2024-08-01 1309.3 1325.3 1210.8 1200
2024-04-01 1273.4 1282.8 1210.8 1200
2024-03-01 1269.7 1282.8 1200 1200
2024-02-01 1200 1200 1200 1200
2024-01-01 1200 1200 1200 1200
2023-12-01 1200 1200 1200 1200
2023-11-01 1200 1200 1200 1200

Comming soon.

Tournaments

No tournaments found.
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
1 Ekurhuleni Trial 4 2025 (D) 2025-09-21 2025-09-21 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
2 Ekurhuleni Trials 2025 (D) 2025-07-26 2025-07-26 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
3 Ekurhuleni Trial 2 2025 (D) 2025-06-21 2025-06-21 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
4 Ekurhuleni Trials 2025 (D) 2025-05-24 2025-05-24 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
5 CPH May 2025 (B) 2025-05-03 2025-05-03 Standard Johannesburg Metro (GJM) 5 5 2 Yes Analysis
6 D6 SH Individual 2025 (U15 Boys) 2025-02-22 2025-02-22 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
Last 500 tournaments since 01 January 2018
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
1 Ekurhuleni Trial 4 2025 (D) 2025-09-21 2025-09-21 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
2 Ekurhuleni Trials 2025 (D) 2025-07-26 2025-07-26 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
3 Ekurhuleni Trial 2 2025 (D) 2025-06-21 2025-06-21 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
4 Ekurhuleni Trials 2025 (D) 2025-05-24 2025-05-24 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
5 CPH May 2025 (B) 2025-05-03 2025-05-03 Standard Johannesburg Metro (GJM) 5 5 2 Yes Analysis
6 D6 SH Individual 2025 (U15 Boys) 2025-02-22 2025-02-22 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
7 Gauteng Inter-Region at UJ 2024 (U16 Candidates) 2024-12-07 2024-12-08 Standard Johannesburg Metro (GJM) 5 5 3.5 Yes Analysis
8 Ekurhuleni Chess Soncini Playoffs 2024 (Boys) 2024-09-14 2024-09-14 Rapid Ekurhuleni (GE) 5 5 2 Yes Analysis
9 Ekurhuleni Closed 2024 (U16) 2024-09-21 2024-09-21 Standard Ekurhuleni (GE) 5 5 3.5 Yes Analysis
10 Mzansi Spring Open 2024 (Intermediate) 2024-09-07 2024-09-07 Standard Johannesburg Metro (GJM) 5 5 3 Yes Analysis
11 Ekurhuleni Trails 3 2024 (U16) 2024-08-24 2024-08-24 Standard Ekurhuleni (GE) 5 5 2.5 Yes Analysis
12 2024 D6 Team Finals (U15) 2024-08-03 2024-08-03 Standard Ekurhuleni (GE) 5 0 0 No Analysis
13 Gauteng Schools Individuals Finals 2024 (U15 Boys) 2024-08-17 2024-08-17 Standard Ekurhuleni (GE) 5 5 2 Yes Analysis
14 Ekurhuleni Trails 2 2024 (U16) 2024-07-27 2024-07-27 Standard Ekurhuleni (GE) 5 5 3.5 Yes Analysis
15 2024 D6 Teams (Pool C U15) 2024-07-20 2024-07-20 Rapid Ekurhuleni (GE) 5 4 2 Yes Analysis
16 Chess Power House July Open 2024 (B) 2024-07-20 2024-07-20 Standard Johannesburg Metro (GJM) 5 0 0 No Analysis
17 Ekurhuleni Trails 1 2024 (U16) 2024-06-01 2024-06-01 Standard Ekurhuleni (GE) 5 5 3.5 Yes Analysis
18 D6 High School Individual Final 2024 (U15 Boys) 2024-05-18 2024-05-18 Standard Ekurhuleni (GE) 5 4 2.5 Yes Analysis
19 Chess Power House May Open 2024 (B) 2024-05-25 2024-05-25 Standard Johannesburg Metro (GJM) 5 5 2 Yes Analysis
20 2024 Mid Gauteng Open Chess Tournament (U16) 2024-05-02 2024-05-02 Standard Tshwane (GTP) 5 4 1 Yes Analysis
21 Ekurhuleni Open 2024 (C) 2024-04-06 2024-04-06 Standard Ekurhuleni (GE) 5 5 4 Yes Analysis
22 Ekurhuleni North Chess Club Open Tournament 2024 (C) 2024-03-02 2024-03-02 Rapid Ehlanzeni (MEN) 7 7 4 Yes Analysis
23 2024 Constantiapark Open (C) 2024-02-17 2024-02-17 Standard Tshwane (GTP) 5 5 4 Yes Analysis

Top 3 Streaks

# Games Start End
1 7 Tournament
Ekurhuleni Trials 2025
Tournament
Ekurhuleni Trial 2 2025
date
2025-05-24
rnd
1
type
Standard
result
1
date
2025-06-21
rnd
2
type
Standard
result
1
Opponent
Nel, Z (Zachery)
Opponent
Ndlovu, W (Wayne)
2 5 Tournament
2024 D6 Teams
Tournament
Ekurhuleni Trails 2 2024
date
2024-07-20
rnd
4
type
Rapid
result
1
date
2024-07-27
rnd
4
type
Standard
result
1
Opponent
Makgwarela, K (Kholofelo)
Opponent
Hattingh, T (Tiaan)
3 4 Tournament
Ekurhuleni Trial 2 2025
Tournament
Ekurhuleni Trials 2025
date
2025-06-21
rnd
4
type
Standard
result
1
date
2025-07-26
rnd
2
type
Standard
result
1
Opponent
Devereux, C (Cayden)
Opponent
Gupta, M (Mishka)
# Games Start End
1 7 Tournament
Ekurhuleni Trials 2025
Tournament
Ekurhuleni Trial 2 2025
date
2025-05-24
rnd
1
type
Standard
result
1
date
2025-06-21
rnd
2
type
Standard
result
1
Opponent
Nel, Z (Zachery)
Opponent
Ndlovu, W (Wayne)
2 7 Tournament
Ekurhuleni Trails 1 2024
Tournament
Ekurhuleni Trails 2 2024
date
2024-06-01
rnd
3
type
Standard
result
1
date
2024-07-27
rnd
4
type
Standard
result
1
Opponent
Van Den Berg, Z (Zandre)
Opponent
Hattingh, T (Tiaan)
3 5 Tournament
2024 Constantiapark Open
Tournament
Ekurhuleni Open 2024
date
2024-02-17
rnd
4
type
Standard
result
1
date
2024-04-06
rnd
3
type
Standard
result
1
Opponent
Groenewald, S (Stefan)
Opponent
Smith, H (Henre)
# Games Start End
1 3 Tournament
2024 D6 Teams
Tournament
Ekurhuleni Chess Soncini Playoffs 2024
date
2024-07-20
rnd
4
type
Rapid
result
1
date
2024-09-14
rnd
2
type
Rapid
result
1
Opponent
Makgwarela, K (Kholofelo)
Opponent
Erasmus, M (Max)
2 2 Tournament
Ekurhuleni North Chess Club Open Tournament 2024
Tournament
Ekurhuleni North Chess Club Open Tournament 2024
date
2024-03-02
rnd
3
type
Rapid
result
1
date
2024-03-02
rnd
4
type
Rapid
result
1
Opponent
Mogotsi, R (Reatlehile)
Opponent
Bhika, J (Jyotikka)
3 1 Tournament
2024 D6 Teams
Tournament
2024 D6 Teams
date
2024-07-20
rnd
2
type
Rapid
result
1
date
2024-07-20
rnd
2
type
Rapid
result
1
Opponent
Naidoo, J (Janeshan)
Opponent
Naidoo, J (Janeshan)
No games found.
# Games Start End
# Games Start End
1 4 Tournament
Ekurhuleni Trial 2 2025
Tournament
Ekurhuleni Trials 2025
date
2025-06-21
rnd
4
type
Standard
result
1
date
2025-07-26
rnd
2
type
Standard
result
1
Opponent
Devereux, C (Cayden)
Opponent
Gupta, M (Mishka)
2 4 Tournament
D6 SH Individual 2025
Tournament
D6 SH Individual 2025
date
2025-02-22
rnd
2
type
Standard
result
1
date
2025-02-22
rnd
5
type
Standard
result
1
Opponent
Mhlongo, A (Andries)
Opponent
Garib, A (Arayan)
3 4 Tournament
Ekurhuleni North Chess Club Open Tournament 2024
Tournament
Ekurhuleni Open 2024
date
2024-03-02
rnd
7
type
Rapid
result
1
date
2024-04-06
rnd
3
type
Standard
result
1
Opponent
Janse Van Vuuren, A (Alexander)
Opponent
Smith, H (Henre)
# Games Start End
1 5 Tournament
2024 Constantiapark Open
Tournament
Ekurhuleni Open 2024
date
2024-02-17
rnd
4
type
Standard
result
1
date
2024-04-06
rnd
3
type
Standard
result
1
Opponent
Groenewald, S (Stefan)
Opponent
Smith, H (Henre)
2 4 Tournament
Ekurhuleni Trial 2 2025
Tournament
Ekurhuleni Trials 2025
date
2025-06-21
rnd
4
type
Standard
result
1
date
2025-07-26
rnd
2
type
Standard
result
1
Opponent
Devereux, C (Cayden)
Opponent
Gupta, M (Mishka)
3 4 Tournament
D6 SH Individual 2025
Tournament
D6 SH Individual 2025
date
2025-02-22
rnd
2
type
Standard
result
1
date
2025-02-22
rnd
5
type
Standard
result
1
Opponent
Mhlongo, A (Andries)
Opponent
Garib, A (Arayan)
# Games Start End
1 3 Tournament
2024 D6 Teams
Tournament
Ekurhuleni Chess Soncini Playoffs 2024
date
2024-07-20
rnd
4
type
Rapid
result
1
date
2024-09-14
rnd
2
type
Rapid
result
1
Opponent
Makgwarela, K (Kholofelo)
Opponent
Erasmus, M (Max)
2 2 Tournament
Ekurhuleni North Chess Club Open Tournament 2024
Tournament
Ekurhuleni North Chess Club Open Tournament 2024
date
2024-03-02
rnd
3
type
Rapid
result
1
date
2024-03-02
rnd
4
type
Rapid
result
1
Opponent
Mogotsi, R (Reatlehile)
Opponent
Bhika, J (Jyotikka)
3 1 Tournament
2024 D6 Teams
Tournament
2024 D6 Teams
date
2024-07-20
rnd
2
type
Rapid
result
1
date
2024-07-20
rnd
2
type
Rapid
result
1
Opponent
Naidoo, J (Janeshan)
Opponent
Naidoo, J (Janeshan)
No games found.
# Games Start End

Top 10 opponents most often played

# Opponent Main Standard Rapid Blitz
Gms Score Dp Gms Score Dp Gms Score Dp Gms Score Dp
Aor Prat Aor Prat Aor Prat Aor Prat
1 Voogt ,R (Ruan) 3 2 141.7 3 2 141.7 0 0 0 0 0 0
1304.4 1446 1304.6 1446 0 0 0 0
2 Netshimbupfe ,Y (Yoanda) 2 2 425 2 2 425 0 0 0 0 0 0
1234.8 1659.8 1265.4 1659.8 0 0 0 0
3 Van Den Berg ,Z (Zandre) 2 1 0 2 1 0 0 0 0 0 0 0
1241.8 1241.8 1249.2 1241.8 0 0 0 0
4 Devereux ,C (Cayden) 2 2 425 2 2 425 0 0 0 0 0 0
1281.4 1706.4 1269.2 1706.4 0 0 0 0
5 Shen Yu ,F (Frank) 2 0.5 -212.5 2 0.5 -212.5 0 0 0 0 0 0
1499.8 1287.3 1481 1287.3 0 0 0 0
6 Ndlovu ,W (Wayne) 2 2 425 2 2 425 0 0 0 0 0 0
1375.5 1800.5 1354.4 1800.5 0 0 0 0
7 Hlope ,S (Siphosethu) 2 0 -425 2 0 -425 0 0 0 0 0 0
1354.2 929.2 1378.2 929.2 0 0 0 0
8 Nickols ,C (Christi) 2 2 425 2 2 425 0 0 0 0 0 0
1268 1693 1275.8 1693 0 0 0 0
9 Sedibe ,T (Thato) 2 1 0 1 1 425 1 0 -425 0 0 0
1271 1271 1288.4 1696 1200 846 0 0
10 Hattingh ,T (Tiaan) 2 1 0 1 1 425 1 0 -425 0 0 0
1344.2 1344.2 1352.6 1769.2 961.1 919.2 0 0

Norms

No norms achieved.
# Norm Tournament Start End Rounds Games Score Details
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