PLAYER PAGE

Personal

De Jager, AJ (Andreas Johannes)

Chess SA id

104006413

FIDE id

?

Date of birth

2004-03-17 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

CM,CPA

Chess SA registered

No

Last active game

2024-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item Main Standard Rapid Blitz
Rating 1898 1896.6 1810.5 1730.9
Raw rating 1897.9 1896.4 1810.5 1730.9
Weighted rating 1898 1896.6 1809.2 1730.9
Weighted performance 1444.4 1389.6 1081.2 0
Floor 1416.6 1415.6 1310.5 1230.9
K-factor 24 24 24 28
Min/Max rating change allowed 61.3 61.5 69.5 77.8
Highest rating 1925.3
2019-11-01
1929.9
2019-11-01
1810.5
2024-06-01
1907.1
2018-04-01
Highest raw rating 1916.6
2022-11-01
1915.6
2022-11-01
1810.5
2024-06-01
1730.9
2024-02-01
Highest weighted rating 1916.6
2024-09-01
1896.4
2025-08-01
1807.5
2025-08-01
1730.9
2024-02-01
Highest weighted performance 1925.3
2019-11-01
1929.9
2019-11-01
1590.8
2019-06-01
1907.1
2018-04-01

Prediction
Item Main Standard Rapid Blitz
Rating change -0 0 0 0
New rating 1898 1896.6 1810.5 1730.9
Analysis
Rating 1898 1896.6 1810.5 1730.9
Raw rating 1897.9 1896.4 1810.5 1730.9
Weighted rating 1898 1896.6 1809.2
Weighted performance 1444.4 1389.6 1081.2
K-factor 24 24 24 28
Floor 1416.6 1415.6 1310.5 1230.9
Max/Min rating change allowed 61.3 61.5 69.5 77.8
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 1897.9 1896.4 1810.5 1730.9
New weighted rating 1898 1896.6 1809.7 1730.9
New weighted performance 1443.8 1388.9 1080.6 0
Temp new rating 1898 1896.6 1810.5 1730.9
Temp new rating +/- -0 0 0 0
Final new rating +/- -0 0 0 0
New rating 1898 1896.6 1810.5 1730.9
New K-factor 24 24 24 28
New floor 1416.6 1415.6 1310.5 1230.9

Item Main Standard Rapid Blitz
0 0 0 0
0 0 0 0
15 9 6 0
25 19 6 0
43 43 0 0
22 17 5 0
History 997 807 128 62

Games since
Main
15
Standard
9
Rapid
6
Blitz
0
Gender Male
Age group Adult
Region Cape Town (WCT)
Province Western Cape (WC)
Main
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
Adult -1 -1 -1
Adult Male -1 -1 -1
Standard
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
Adult -1 -1 -1
Adult Male -1 -1 -1
Rapid
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
Adult -1 -1 -1
Adult Male -1 -1 -1
Blitz
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
Adult -1 -1 -1
Adult 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 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
History
Games Score % Dp AvgOpp Performance
Main 325 239.5 73.69 201.4 1568.8 1770.2
Standard 262 193 73.66 201.1 1571 1772.1
Rapid 56 42.5 75.89 220.1 1528.9 1749
Blitz 7 4 57.14 60.7 1807.4 1868.1

Date Main Standard Rapid Blitz
2025-09-30 1897.9 1896.4 1810.5 1730.9
2025-09-01 1897.9 1896.4 1810.5 1730.9
2025-08-01 1897.9 1896.4 1810.5 1730.9
2025-07-01 1897.9 1896.2 1810.5 1730.9
2025-06-01 1897.9 1896.1 1810.5 1730.9
2025-05-01 1897.8 1895.9 1810.5 1730.9
2025-04-01 1897.7 1895.6 1810.5 1730.9
2025-03-01 1897.6 1895.4 1810.5 1730.9
2025-02-01 1897.2 1895.1 1810.5 1730.9
2025-01-01 1894.9 1895.1 1810.5 1730.9
2024-12-01 1894.9 1895.1 1810.5 1730.9
2024-11-01 1894.9 1895.1 1810.5 1730.9
2024-10-01 1894.9 1895.1 1810.5 1730.9
2024-09-01 1901.4 1900.1 1810.5 1730.9
2024-08-01 1901.4 1900.1 1810.5 1730.9
2024-07-01 1901.4 1900.1 1810.5 1730.9
2024-06-01 1901.4 1900.1 1810.5 1730.9
2024-08-01 1901.6 1900.1 1801.4 1730.9
2024-04-01 1901.6 1900.1 1801.4 1730.9
2024-03-01 1901.6 1900.1 1801.4 1730.9
2024-02-01 1901.6 1900.1 1801.4 1730.9
2024-01-01 1901.6 1900.1 1801.4 1730.9
2023-12-01 1891.6 1882.4 1752.7 1730.9
2023-11-01 1891.6 1882.4 1752.7 1730.9

Comming soon.

Tournaments

No tournaments found.
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
No tournaments found.
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
Last 500 tournaments since 01 January 2018
# Tournament Start End Type Host Rounds Games Score Cfr Analysis
1 CT League 2024 (A) 2024-07-20 2024-09-07 Standard Cape Town (WCT) 11 9 6.5 Yes Analysis
2 Steinitz Chess Festival 2024 (Open Rapid) 2024-05-11 2024-05-11 Rapid Cape Town (WCT) 6 6 5 Yes Analysis
3 WP Club League 2023 (A) 2023-07-29 2023-09-09 Standard Cape Town (WCT) 11 11 9 Yes Analysis
4 Steinitz Open 2023 (D) 2023-05-27 2023-05-27 Rapid Cape Town (WCT) 6 6 5.5 Yes Analysis
5 Cape Town Masters Challenge 2023 (Masters) 2023-01-04 2023-01-08 Standard Cape Town (WCT) 9 8 3.5 Yes Analysis
6 Western Cape Club Championship 2022 (Tier 1) 2022-10-07 2022-10-09 Standard Cape Town (WCT) 6 5 4 Yes Analysis
7 2022 Western Province Club League (Premier) 2022-08-20 2022-10-01 Standard Cape Town (WCT) 11 11 8.5 Yes Analysis
8 South African Open 2022 (Championship) 2022-07-09 2022-07-17 Standard Cape Town (WCT) 11 11 6.5 Yes Analysis
9 Steinitz Open 2022 (A) 2022-05-20 2022-05-22 Standard Cape Town (WCT) 6 6 4 Yes Analysis
10 Western Cape Schools Chess 2022 (U18 Boys) 2022-05-07 2022-05-08 Standard Eden (WEG) 6 6 5 Yes Analysis
11 Western Cape Inter Region Cup 2021 (Junior) 2022-03-04 2022-03-06 Standard West Coast (WCU) 5 4 3 Yes Analysis
12 Western Cape Schools 2021 (U18 Boys) 2021-10-23 2021-10-23 Rapid Overberg (WOS) 5 5 5 Yes Analysis
13 Western Cape Club Championships 2021 (A) 2021-10-15 2021-10-17 Standard Eden (WEG) 6 6 4.5 Yes Analysis
14 Western Cape Closed 2021 (Championship) 2021-09-24 2021-09-26 Standard Cape Winelands (WCW) 6 6 4 Yes Analysis
15 Paul Roos Gymnasium Covid-19 Challenge 2021 (A) 2021-02-27 2021-02-28 Standard Cape Winelands (WCW) 5 5 4 Yes Analysis
16 Western Cape Schools 2020 (U18 Boys) 2020-03-14 2020-03-15 Standard Cape Town (WCT) 5 5 3.5 Yes Analysis
17 Metro North Individual Trials 2020 (U17) 2020-02-07 2020-02-08 Standard Cape Town (WCT) 6 6 5 Yes Analysis
18 Nelson Mandela Rapid 2020 (Open) 2020-02-01 2020-02-01 Rapid Cape Town (WCT) 6 6 4 Yes Analysis
19 2019 South African Junior Team Championships (U18A) 2020-01-04 2020-01-08 Standard 4 Knights (4K) 7 7 4.5 Yes Analysis
20 2019 South African Closed Chess Championships (U20 Open) 2019-12-07 2019-12-14 Standard Cape Town (WCT) 11 10 5.5 Yes Analysis
21 WORLD YOUTH UNDER-16 CHESS OLYMPIAD 2019 2019-10-29 2019-11-05 Standard Turkey (TUR) 9 8 5 Yes Analysis
22 2019 National Club Chess Championships (A) 2019-09-27 2019-09-29 Standard Cape Town (WCT) 6 6 5 Yes Analysis
23 Western Cape Top Schools 2019 (U18 Mix) 2019-08-31 2019-09-01 Standard Cape Winelands (WCW) 5 5 4.5 Yes Analysis
24 2019 Western Cape Closed Chess Championships (Elite) 2019-09-21 2019-09-24 Standard Cape Winelands (WCW) 6 5 2 Yes Analysis
25 2019 Western Province League (Premier) 2019-07-27 2019-09-07 Standard Cape Town (WCT) 11 9 8 Yes Analysis
26 2019 SA Schools Winter Games (U15 Boys) 2019-07-01 2019-07-04 Standard Ethekwini (KED) 7 7 6 Yes Analysis
27 Imam Haron 50th Commemoration Event Open 2019 2019-06-15 2019-06-15 Rapid Cape Town (WCT) 7 7 5.5 Yes Analysis
28 Stellenberg Youth Chess Championship 2019 (Presige) 2019-05-01 2019-05-01 Rapid Cape Town (WCT) 6 6 3 Yes Analysis
29 Western Cape Schools Individuals 2019 (U15 Boys) 2019-05-04 2019-05-05 Standard Eden (WEG) 6 6 6 Yes Analysis
30 Steinitz Chess Festival 2019 (A) 2019-04-05 2019-04-07 Standard Cape Town (WCT) 6 6 3 Yes Analysis
31 Metro School Chess Closed Individual Trials 2019 (U15 Boys) 2019-03-01 2019-03-02 Standard Cape Town (WCT) 6 6 5.5 Yes Analysis
32 2019 South African Junior Closed Chess Championship (U16 Open) 2019-03-17 2019-03-22 Standard Chess South Africa (CSA) 9 9 6 Yes Analysis
33 District North Schools Chess Trials 2019 (U15) 2019-01-25 2019-01-26 Standard Cape Town (WCT) 6 6 6 Yes Analysis
34 Western Cape Chess Club Championship Dec 2018 2018-12-08 2018-12-09 Standard Eden (WEG) 6 6 6 Yes Analysis
35 South African Junior Team Championships 2018 (U16A) 2018-12-16 2018-12-20 Standard 4 Knights (4K) 7 7 4.5 Yes Analysis
36 2018 Western Province League (Premier) 2018-08-04 2018-09-15 Standard Cape Town (WCT) 11 7 5 Yes Analysis
37 2018 Western Province League (B) 2018-08-04 2018-09-15 Standard Cape Town (WCT) 11 4 2 Yes Analysis
38 Western Cape Top Schools 2018 (U15 Mix) 2018-08-25 2018-08-26 Standard Overberg (WOS) 5 5 5 Yes Analysis
39 Stellenberg Youth Chess Champs 2018 (A) 2018-06-22 2018-06-23 Standard Cape Town (WCT) 6 6 5.5 Yes Analysis
40 Eldo Smart Memorial Rapid Tournament 2018 2018-06-16 2018-06-16 Rapid Cape Town (WCT) 7 7 4 Yes Analysis
41 Drakenstein Dragons Rapid 2018 (U18) 2018-06-09 2018-06-09 Rapid Cape Winelands (WCW) 7 7 6.5 Yes Analysis
42 Western Cape Schools Individuals 2018 (U15 Boys) 2018-05-19 2018-05-20 Standard Overberg (WOS) 6 6 5.5 Yes Analysis
43 Cape Town Chess Club Blitz 2018 2018-04-24 2018-04-24 Blitz Cape Town (WCT) 7 7 4 Yes Analysis
44 2018 WP Schools Closed Trials (U15 Boys) 2018-03-09 2018-03-10 Standard Cape Town (WCT) 6 6 5 Yes Analysis
45 2018 Steinitz Chess Festival (Prestige) 2018-03-21 2018-03-25 Standard Cape Town (WCT) 7 7 2 Yes Analysis
46 District North Schools Chess Open Trials 2018 (U15) 2018-02-09 2018-02-10 Standard Cape Town (WCT) 6 6 5 Yes Analysis
47 Steinitz Club Rapid 2018 2018-01-10 2018-01-24 Rapid Cape Town (WCT) 6 6 4 Yes Analysis
48 2018 Cape of Good Hope Open Chess Championships (Prestige) 2018-01-26 2018-01-28 Standard Cape Town (WCT) 6 6 4.5 Yes Analysis
49 South African Junior Team Championships 2017 (U18A) 2018-01-04 2018-01-08 Standard 4 Knights (4K) 7 7 5 Yes Analysis

Top 3 Streaks

# Games Start End
1 23 Tournament
Imam Haron 50th Commemoration Event Open 2019
Tournament
2019 Western Province League
date
2019-06-15
rnd
6
type
Rapid
result
1
date
2019-09-07
rnd
11
type
Standard
result
1
Opponent
Braaf, J (Jiraan)
Opponent
October, M (Mario)
2 17 Tournament
Western Cape Club Championships 2021
Tournament
Western Cape Schools Chess 2022
date
2021-10-16
rnd
3
type
Standard
result
1
date
2022-05-07
rnd
4
type
Standard
result
1
Opponent
Botha, R (Ralph)
Opponent
Masoka, L (Lwando)
3 17 Tournament
Cape Town Chess Club Blitz 2018
Tournament
Eldo Smart Memorial Rapid Tournament 2018
date
2018-04-24
rnd
7
type
Blitz
result
1
date
2018-06-16
rnd
3
type
Rapid
result
1
Opponent
Pearson, GEC (Grahame)
Opponent
Lewis, MMM (Mark)
# Games Start End
1 27 Tournament
Western Cape Schools Individuals 2019
Tournament
2019 Western Province League
date
2019-05-04
rnd
1
type
Standard
result
1
date
2019-09-07
rnd
11
type
Standard
result
1
Opponent
Africa, L (Lindsay)
Opponent
October, M (Mario)
2 14 Tournament
2018 Western Province League
Tournament
South African Junior Team Championships 2018
date
2018-09-08
rnd
10
type
Standard
result
1
date
2018-12-19
rnd
6
type
Standard
result
0.5
Opponent
Ohlson, C (Cecil)
Opponent
Weisz, B (Benjamin)
3 13 Tournament
District North Schools Chess Trials 2019
Tournament
2019 South African Junior Closed Chess Championship
date
2019-01-25
rnd
1
type
Standard
result
1
date
2019-03-17
rnd
1
type
Standard
result
1
Opponent
Diedericks, U (Ugan)
Opponent
Mazibuko, B (Buhle)
# Games Start End
1 15 Tournament
Nelson Mandela Rapid 2020
Tournament
Steinitz Chess Festival 2024
date
2020-02-01
rnd
6
type
Rapid
result
1
date
2024-05-11
rnd
3
type
Rapid
result
1
Opponent
Fraser, CJ (Craig)
Opponent
Korebrits, R (Richard)
2 13 Tournament
Steinitz Club Rapid 2018
Tournament
Eldo Smart Memorial Rapid Tournament 2018
date
2018-01-17
rnd
4
type
Rapid
result
0.5
date
2018-06-16
rnd
3
type
Rapid
result
1
Opponent
Louw, C (Carlo)
Opponent
Lewis, MMM (Mark)
3 5 Tournament
Stellenberg Youth Chess Championship 2019
Tournament
Imam Haron 50th Commemoration Event Open 2019
date
2019-05-01
rnd
6
type
Rapid
result
1
date
2019-06-15
rnd
4
type
Rapid
result
1
Opponent
Bouah, D (Denise)
Opponent
Hommes, WJ (Wouter Jan)
# Games Start End
1 2 Tournament
Cape Town Chess Club Blitz 2018
Tournament
Cape Town Chess Club Blitz 2018
date
2018-04-24
rnd
2
type
Blitz
result
1
date
2018-04-24
rnd
3
type
Blitz
result
1
Opponent
Minnie, H (Hendrik)
Opponent
Levin, BRL (Benny)
2 1 Tournament
Cape Town Chess Club Blitz 2018
Tournament
Cape Town Chess Club Blitz 2018
date
2018-04-24
rnd
7
type
Blitz
result
1
date
2018-04-24
rnd
7
type
Blitz
result
1
Opponent
Pearson, GEC (Grahame)
Opponent
Pearson, GEC (Grahame)
3 1 Tournament
Cape Town Chess Club Blitz 2018
Tournament
Cape Town Chess Club Blitz 2018
date
2018-04-24
rnd
5
type
Blitz
result
1
date
2018-04-24
rnd
5
type
Blitz
result
1
Opponent
Basson, H (Heinrich)
Opponent
Basson, H (Heinrich)
# Games Start End
1 11 Tournament
2022 Western Province Club League
Tournament
Western Cape Club Championship 2022
date
2022-08-27
rnd
4
type
Standard
result
1
date
2022-10-08
rnd
3
type
Standard
result
1
Opponent
Cassells, L (Llewellyn)
Opponent
Lynch, J (Justin)
2 11 Tournament
Stellenberg Youth Chess Championship 2019
Tournament
Imam Haron 50th Commemoration Event Open 2019
date
2019-05-01
rnd
6
type
Rapid
result
1
date
2019-06-15
rnd
4
type
Rapid
result
1
Opponent
Bouah, D (Denise)
Opponent
Hommes, WJ (Wouter Jan)
3 10 Tournament
District North Schools Chess Trials 2019
Tournament
Metro School Chess Closed Individual Trials 2019
date
2019-01-25
rnd
1
type
Standard
result
1
date
2019-03-02
rnd
4
type
Standard
result
1
Opponent
Diedericks, U (Ugan)
Opponent
Thakersee, R (Rishay)
# Games Start End
1 11 Tournament
2022 Western Province Club League
Tournament
Western Cape Club Championship 2022
date
2022-08-27
rnd
4
type
Standard
result
1
date
2022-10-08
rnd
3
type
Standard
result
1
Opponent
Cassells, L (Llewellyn)
Opponent
Lynch, J (Justin)
2 11 Tournament
Western Cape Schools Individuals 2019
Tournament
2019 SA Schools Winter Games
date
2019-05-04
rnd
1
type
Standard
result
1
date
2019-07-03
rnd
5
type
Standard
result
1
Opponent
Africa, L (Lindsay)
Opponent
Fihla, LL (Lonwabo)
3 10 Tournament
District North Schools Chess Trials 2019
Tournament
Metro School Chess Closed Individual Trials 2019
date
2019-01-25
rnd
1
type
Standard
result
1
date
2019-03-02
rnd
4
type
Standard
result
1
Opponent
Diedericks, U (Ugan)
Opponent
Thakersee, R (Rishay)
# Games Start End
1 10 Tournament
Nelson Mandela Rapid 2020
Tournament
Steinitz Open 2023
date
2020-02-01
rnd
6
type
Rapid
result
1
date
2023-05-27
rnd
4
type
Rapid
result
1
Opponent
Fraser, CJ (Craig)
Opponent
De Jager, LJ (Luan)
2 5 Tournament
Stellenberg Youth Chess Championship 2019
Tournament
Imam Haron 50th Commemoration Event Open 2019
date
2019-05-01
rnd
6
type
Rapid
result
1
date
2019-06-15
rnd
4
type
Rapid
result
1
Opponent
Bouah, D (Denise)
Opponent
Hommes, WJ (Wouter Jan)
3 5 Tournament
Drakenstein Dragons Rapid 2018
Tournament
Eldo Smart Memorial Rapid Tournament 2018
date
2018-06-09
rnd
6
type
Rapid
result
1
date
2018-06-16
rnd
3
type
Rapid
result
1
Opponent
Maxwell, T (Tristan)
Opponent
Lewis, MMM (Mark)
# Games Start End
1 2 Tournament
Cape Town Chess Club Blitz 2018
Tournament
Cape Town Chess Club Blitz 2018
date
2018-04-24
rnd
2
type
Blitz
result
1
date
2018-04-24
rnd
3
type
Blitz
result
1
Opponent
Minnie, H (Hendrik)
Opponent
Levin, BRL (Benny)
2 1 Tournament
Cape Town Chess Club Blitz 2018
Tournament
Cape Town Chess Club Blitz 2018
date
2018-04-24
rnd
7
type
Blitz
result
1
date
2018-04-24
rnd
7
type
Blitz
result
1
Opponent
Pearson, GEC (Grahame)
Opponent
Pearson, GEC (Grahame)
3 1 Tournament
Cape Town Chess Club Blitz 2018
Tournament
Cape Town Chess Club Blitz 2018
date
2018-04-24
rnd
5
type
Blitz
result
1
date
2018-04-24
rnd
5
type
Blitz
result
1
Opponent
Basson, H (Heinrich)
Opponent
Basson, H (Heinrich)

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 Braaf ,J (Jiraan) 7 5.5 242.9 5 3.5 170 2 2 425 0 0 0
1687.5 1930.4 1750.7 1857.5 1255.2 2112.5 0 0
2 Van Der Merwe ,A (Alexander) 6 4 141.7 6 4 141.7 0 0 0 0 0 0
1698.9 1840.6 1714.1 1840.6 0 0 0 0
3 De Jager ,LJ (Luan Johannes) 5 4.5 340 4 3.5 318.8 1 1 425 0 0 0
1848.5 2188.5 1880.7 2167.2 1773.1 2273.5 0 0
4 Mnyasta ,T (Tezihano) 5 4 255 4 3 212.5 1 1 425 0 0 0
1702.5 1957.5 1685.2 1915 1389.9 2127.5 0 0
5 Yu ,CRR (Changrui) 4 3.5 318.8 4 3.5 318.8 0 0 0 0 0 0
1601.1 1919.8 1605.3 1919.8 0 0 0 0
6 Coetzee ,P (Philip) 4 4 425 4 4 425 0 0 0 0 0 0
1504.1 1929.1 1500.2 1929.1 0 0 0 0
7 Mncwabe ,M (Minenhle Junior) 4 4 425 4 4 425 0 0 0 0 0 0
1686.4 2111.4 1689.2 2111.4 0 0 0 0
8 Olkers ,LP (Lleyton) 4 2.5 106.2 3 1.5 0 1 1 425 0 0 0
1555.2 1661.5 1522.7 1555.2 1467.8 1980.2 0 0
9 Louw ,C (Carlo) 4 2 0 3 1.5 0 1 0.5 0 0 0 0
1539.5 1539.5 1561.5 1539.5 1482.6 1539.5 0 0
10 Samuels ,ER (Ethan) 4 2 0 2 1.5 212.5 2 0.5 -212.5 0 0 0
1860.5 1860.5 1920.6 2073 1739.9 1648 0 0

Norms

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