PLAYER PAGE

Personal

Viljoen, J (Johandre)

Chess SA id

1110158449

FIDE id

?

Date of birth

2011-01-18 (U16)

Gender

Male

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

No

Last active game

2025-09-06

Personal details last changed

1900-01-01

Junior GPX Games

40

Junior GPX Points

1381.1

Item Main Standard Rapid Blitz
Rating 1402 1400.7 1200 1200
Raw rating 1402 1400.7 1200 1200
Weighted rating 1322.7 1328.2 1200 1200
Weighted performance 1373 1374.2 0 0
Floor 912.9 915.1 700 700
K-factor 32 32 36 36
Min/Max rating change allowed 124.4 124.6 165.8 165.8
Highest rating 1412.9
2025-09-01
1415.1
2025-09-01
1200
2018-10-01
1200
2018-10-01
Highest raw rating 1412.9
2025-09-01
1415.1
2025-09-01
1200
2024-02-01
1200
2024-02-01
Highest weighted rating 1322.7
2025-09-30
1328.2
2025-09-30
1200
2018-10-01
1200
2018-10-01
Highest weighted performance 1411.6
2025-06-01
1409.7
2025-09-01
1200
2024-02-01
1200
2024-02-01

Prediction
Item Main Standard Rapid Blitz
Rating change 0 0 0 0
New rating 1402 1400.7 1200 1200
Analysis
Rating 1402 1400.7 1200 1200
Raw rating 1402 1400.7 1200 1200
Weighted rating 1322.7 1328.2 1200
Weighted performance 1373 1374.2 0
K-factor 32 32 36 36
Floor 912.9 915.1 700 700
Max/Min rating change allowed 124.4 124.6 165.8 165.8
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 1402 1400.7 1200 1200
New weighted rating 1331.8 1336.7 1200 1200
New weighted performance 1372.5 1373.7 0 0
Temp new rating 1402 1400.7 1200 1200
Temp new rating +/- 0 0 0 0
Final new rating +/- 0 0 0 0
New rating 1402 1400.7 1200 1200
New K-factor 32 32 36 36
New floor 912.9 915.1 700 700

Item Main Standard Rapid Blitz
0 0 0 0
40 40 0 0
10 10 0 0
5 5 0 0
0 0 0 0
0 0 0 0
History 55 55 0 0

Games since
Main
50
Standard
50
Rapid
0
Blitz
0
Gender Male
Age group U16
Region West Rand (GWR)
Province Gauteng (GT)
Main
RSA Province Region
Overall 2142 754 59
Male 1764 613 44
U16 323 106 6
U16 Male 249 77 2
Standard
RSA Province Region
Overall 2042 767 67
Male 1671 623 51
U16 308 107 5
U16 Male 241 81 2
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 40 24 60 85 1321.2 1406.2
Standard 40 24 60 85 1321.2 1406.2
Rapid 0 0 0 0 0 0
Blitz 0 0 0 0 0 0
History
Games Score % Dp AvgOpp Performance
Main 55 34 61.82 100.5 1293.3 1393.8
Standard 55 34 61.82 100.5 1293.3 1393.8
Rapid 0 0 0 0 0 0
Blitz 0 0 0 0 0 0

Date Main Standard Rapid Blitz
2025-09-30 1402 1400.7 1200 1200
2025-09-01 1412.9 1415.1 1200 1200
2025-08-01 1391.7 1387.2 1200 1200
2025-07-01 1401.9 1398.5 1200 1200
2025-06-01 1411.6 1409.3 1200 1200
2025-05-01 1362.4 1359.6 1200 1200
2025-04-01 1300.8 1314.1 1200 1200
2025-03-01 1280.8 1291.7 1200 1200
2025-02-01 1276.2 1289.6 1200 1200
2025-01-01 1276.2 1289.6 1200 1200
2024-12-01 1276.2 1289.6 1200 1200
2024-11-01 1276.2 1289.6 1200 1200
2024-10-01 1276.2 1289.6 1200 1200
2024-09-01 1276.2 1289.6 1200 1200
2024-08-01 1276.2 1289.6 1200 1200
2024-07-01 1232.9 1240.3 1200 1200
2024-06-01 1232.9 1240.3 1200 1200
2024-08-01 1222.1 1226.6 1200 1200
2024-04-01 1222.1 1226.6 1200 1200
2024-03-01 1222.1 1226.6 1200 1200
2024-02-01 1222.1 1226.6 1200 1200
2024-01-01 1222.1 1226.6 1200 1200
2023-12-01 1222.1 1226.6 1200 1200
2023-11-01 1222.1 1226.6 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 West Rand Trials 2025 (U16) 2025-09-06 2025-09-06 Standard West Rand (GWR) 5 5 2.5 Yes Analysis
2 West Rand Women's Day Open 2025 (Rooks) 2025-08-09 2025-08-09 Standard West Rand (GWR) 5 5 3.5 Yes Analysis
3 2025 D2 Schools League Finals (U15) 2025-07-26 2025-07-26 Standard West Rand (GWR) 5 5 3 Yes Analysis
4 West Rand Open 2.0 2025 (Rooks) 2025-06-07 2025-06-07 Standard West Rand (GWR) 5 5 3 Yes Analysis
5 2025 D2 Schools Individuals (U15 Open) 2025-05-10 2025-05-10 Standard West Rand (GWR) 5 5 4 Yes Analysis
6 FIDE in The West 2025 (Rooks) 2025-04-12 2025-04-12 Standard West Rand (GWR) 5 5 3 Yes Analysis
7 West Rand Juniors 2025 (U16) 2025-03-08 2025-03-08 Standard West Rand (GWR) 5 5 3 Yes Analysis
8 2025 West Rand Open (Rooks) 2025-02-08 2025-02-08 Standard West Rand (GWR) 5 5 2 Yes Analysis
Last 500 tournaments since 01 January 2018
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
1 West Rand Trials 2025 (U16) 2025-09-06 2025-09-06 Standard West Rand (GWR) 5 5 2.5 Yes Analysis
2 West Rand Women's Day Open 2025 (Rooks) 2025-08-09 2025-08-09 Standard West Rand (GWR) 5 5 3.5 Yes Analysis
3 2025 D2 Schools League Finals (U15) 2025-07-26 2025-07-26 Standard West Rand (GWR) 5 5 3 Yes Analysis
4 West Rand Open 2.0 2025 (Rooks) 2025-06-07 2025-06-07 Standard West Rand (GWR) 5 5 3 Yes Analysis
5 2025 D2 Schools Individuals (U15 Open) 2025-05-10 2025-05-10 Standard West Rand (GWR) 5 5 4 Yes Analysis
6 FIDE in The West 2025 (Rooks) 2025-04-12 2025-04-12 Standard West Rand (GWR) 5 5 3 Yes Analysis
7 West Rand Juniors 2025 (U16) 2025-03-08 2025-03-08 Standard West Rand (GWR) 5 5 3 Yes Analysis
8 2025 West Rand Open (Rooks) 2025-02-08 2025-02-08 Standard West Rand (GWR) 5 5 2 Yes Analysis
9 D2 School League Finals 2024 (U13) 2024-07-20 2024-07-20 Standard West Rand (GWR) 5 5 4 Yes Analysis
10 2024 D2 Schools Individuals (U13 Boys) 2024-05-04 2024-05-04 Standard West Rand (GWR) 5 5 3 Yes Analysis
11 D2 School League Finals 2023 (U13) 2023-07-22 2023-07-22 Standard West Rand (GWR) 5 5 3 Yes Analysis

Top 3 Streaks

# Games Start End
1 4 Tournament
West Rand Women's Day Open 2025
Tournament
West Rand Women's Day Open 2025
date
2025-08-09
rnd
1
type
Standard
result
0.5
date
2025-08-09
rnd
4
type
Standard
result
1
Opponent
Magobongo, E (Emihle)
Opponent
Lekgoba, R (Rethabile Ellen)
2 4 Tournament
D2 School League Finals 2024
Tournament
2025 West Rand Open
date
2024-07-20
rnd
3
type
Standard
result
1
date
2025-02-08
rnd
1
type
Standard
result
1
Opponent
Magagula, S (Siyabonga)
Opponent
Fourie, T (Theo)
3 3 Tournament
2025 D2 Schools League Finals
Tournament
2025 D2 Schools League Finals
date
2025-07-26
rnd
2
type
Standard
result
1
date
2025-07-26
rnd
4
type
Standard
result
1
Opponent
Mothupi, R (Reotshepile)
Opponent
Moruledi, N (Naledi)
# Games Start End
1 4 Tournament
West Rand Women's Day Open 2025
Tournament
West Rand Women's Day Open 2025
date
2025-08-09
rnd
1
type
Standard
result
0.5
date
2025-08-09
rnd
4
type
Standard
result
1
Opponent
Magobongo, E (Emihle)
Opponent
Lekgoba, R (Rethabile Ellen)
2 4 Tournament
D2 School League Finals 2024
Tournament
2025 West Rand Open
date
2024-07-20
rnd
3
type
Standard
result
1
date
2025-02-08
rnd
1
type
Standard
result
1
Opponent
Magagula, S (Siyabonga)
Opponent
Fourie, T (Theo)
3 3 Tournament
2025 D2 Schools League Finals
Tournament
2025 D2 Schools League Finals
date
2025-07-26
rnd
2
type
Standard
result
1
date
2025-07-26
rnd
4
type
Standard
result
1
Opponent
Mothupi, R (Reotshepile)
Opponent
Moruledi, N (Naledi)
No games found.
# Games Start End
No games found.
# Games Start End
# Games Start End
1 4 Tournament
D2 School League Finals 2024
Tournament
2025 West Rand Open
date
2024-07-20
rnd
3
type
Standard
result
1
date
2025-02-08
rnd
1
type
Standard
result
1
Opponent
Magagula, S (Siyabonga)
Opponent
Fourie, T (Theo)
2 3 Tournament
West Rand Women's Day Open 2025
Tournament
West Rand Women's Day Open 2025
date
2025-08-09
rnd
2
type
Standard
result
1
date
2025-08-09
rnd
4
type
Standard
result
1
Opponent
Arlow, J (Jaden)
Opponent
Lekgoba, R (Rethabile Ellen)
3 3 Tournament
2025 D2 Schools League Finals
Tournament
2025 D2 Schools League Finals
date
2025-07-26
rnd
2
type
Standard
result
1
date
2025-07-26
rnd
4
type
Standard
result
1
Opponent
Mothupi, R (Reotshepile)
Opponent
Moruledi, N (Naledi)
# Games Start End
1 4 Tournament
D2 School League Finals 2024
Tournament
2025 West Rand Open
date
2024-07-20
rnd
3
type
Standard
result
1
date
2025-02-08
rnd
1
type
Standard
result
1
Opponent
Magagula, S (Siyabonga)
Opponent
Fourie, T (Theo)
2 3 Tournament
West Rand Women's Day Open 2025
Tournament
West Rand Women's Day Open 2025
date
2025-08-09
rnd
2
type
Standard
result
1
date
2025-08-09
rnd
4
type
Standard
result
1
Opponent
Arlow, J (Jaden)
Opponent
Lekgoba, R (Rethabile Ellen)
3 3 Tournament
2025 D2 Schools League Finals
Tournament
2025 D2 Schools League Finals
date
2025-07-26
rnd
2
type
Standard
result
1
date
2025-07-26
rnd
4
type
Standard
result
1
Opponent
Mothupi, R (Reotshepile)
Opponent
Moruledi, N (Naledi)
No games found.
# Games Start End
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 Mtsweni ,T (Thapelo) 2 2 425 2 2 425 0 0 0 0 0 0
1181.8 1606.8 1185.8 1606.8 0 0 0 0
2 Marx ,EF (Ethen Frederik) 2 1.5 212.5 2 1.5 212.5 0 0 0 0 0 0
1242.2 1454.7 1245.8 1454.7 0 0 0 0
3 Lekgoba ,R (Rethabile Ellen) 2 2 425 2 2 425 0 0 0 0 0 0
1454.4 1879.4 1452.8 1879.4 0 0 0 0
4 Magagula ,S (Siyabonga) 1 1 425 1 1 425 0 0 0 0 0 0
1206.3 1631.3 1207.2 1631.3 0 0 0 0
5 Lokwe ,S (Simthandile) 1 1 425 1 1 425 0 0 0 0 0 0
1463.6 1888.6 1466.8 1888.6 0 0 0 0
6 Perry-Fisher ,IE (Iain Eric) 1 0 -425 1 0 -425 0 0 0 0 0 0
1410 985 1408.5 985 0 0 0 0
7 Fourie ,T (Theo) 1 1 425 1 1 425 0 0 0 0 0 0
1424 1849 1415.4 1849 0 0 0 0
8 Makhubalo ,I (Inam) 1 1 425 1 1 425 0 0 0 0 0 0
1149.9 1574.9 1139.6 1574.9 0 0 0 0
9 Maseko ,T (Tshiamo) 1 0 -425 1 0 -425 0 0 0 0 0 0
1420.5 995.5 1415.1 995.5 0 0 0 0
10 Maseko ,K (Karabo) 1 1 425 1 1 425 0 0 0 0 0 0
1200 1625 1200 1625 0 0 0 0

Norms

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