PLAYER PAGE

Personal

De Jager, J (Jandre)

Chess SA id

1090134428

FIDE id

14362465

Date of birth

2009-12-11 (U18)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-12-17

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item Main Standard Rapid Blitz
Rating 1366.4 1361.7 1219.8 1200
Raw rating 1301.5 1283 1219.8 1200
Weighted rating 1366.4 1361.7 1216.8 1200
Weighted performance 1179 1168.5 0 0
Floor 918.7 914.3 719.8 700
K-factor 32 32 36 36
Min/Max rating change allowed 143.5 147.3 161.2 165.8
Highest rating 1418.7
2025-04-01
1414.3
2025-04-01
1288.2
2024-10-01
1200
2018-10-01
Highest raw rating 1418.7
2025-04-01
1414.3
2025-04-01
1219.8
2024-11-01
1200
2024-02-01
Highest weighted rating 1366.4
2026-01-01
1361.7
2026-01-01
1212.9
2025-08-01
1200
2018-10-01
Highest weighted performance 1418.7
2025-04-01
1414.3
2024-08-01
1288.2
2024-10-01
1200
2024-02-01

Prediction
Item Main Standard Rapid Blitz
Rating change -2.8 -4 0 0
New rating 1363.5 1357.7 1219.8 1200
Analysis
Rating 1366.4 1361.7 1219.8 1200
Raw rating 1301.5 1283 1219.8 1200
Weighted rating 1366.4 1361.7 1216.8
Weighted performance 1179 1168.5 0
K-factor 32 32 36 36
Floor 918.7 914.3 719.8 700
Max/Min rating change allowed 143.5 147.3 161.2 165.8
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 1301.5 1283 1219.8 1200
New weighted rating 1363.5 1357.7 1217.4 1200
New weighted performance 1171 1160.5 0 0
Temp new rating 1363.5 1357.7 1219.8 1200
Temp new rating +/- -2.8 -4 0 0
Final new rating +/- -2.8 -4 0 0
New rating 1363.5 1357.7 1219.8 1200
New K-factor 32 32 36 36
New floor 918.7 914.3 719.8 700

Item Main Standard Rapid Blitz
0 0 0 0
35 35 0 0
45 40 5 0
49 49 0 0
53 53 0 0
4 4 0 0
History 186 181 5 0

Games since
Main
80
Standard
75
Rapid
5
Blitz
0
Gender Male
Age group U18
Region Tshwane (GTP)
Province Gauteng (GT)
Main
RSA Province Region
Overall 2052 719 257
Male 1683 580 202
U18 331 127 54
U18 Male 286 107 46
Standard
RSA Province Region
Overall 2022 749 284
Male 1651 607 224
U18 339 145 64
U18 Male 294 125 56
Rapid
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
U18 -1 -1 -1
U18 Male -1 -1 -1
Blitz
RSA Province Region
Overall -1 -1 -1
Male -1 -1 -1
U18 -1 -1 -1
U18 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 35 23 65.71 133.6 1297.1 1430.6
Standard 35 23 65.71 133.6 1297.1 1430.6
Rapid 0 0 0 0 0 0
Blitz 0 0 0 0 0 0
History
Games Score % Dp AvgOpp Performance
Main 186 91 48.92 -9.1 1258.8 1249.7
Standard 181 88 48.62 -11.7 1260 1248.3
Rapid 5 3 60 85 1215 1300
Blitz 0 0 0 0 0 0

Date Main Standard Rapid Blitz
2026-01-01 1301.5 1283 1219.8 1200
2025-11-30 1413 1406.5 1219.8 1200
2025-11-01 1413 1406.5 1219.8 1200
2025-09-30 1413 1406.5 1219.8 1200
2025-09-01 1413 1406.5 1219.8 1200
2025-08-01 1418.7 1414.3 1219.8 1200
2025-07-01 1418.7 1414.3 1219.8 1200
2025-06-01 1418.7 1414.3 1219.8 1200
2025-05-01 1418.7 1414.3 1219.8 1200
2025-04-01 1418.7 1414.3 1219.8 1200
2025-03-01 1358.2 1363.3 1219.8 1200
2025-02-01 1282.2 1280.1 1219.8 1200
2025-01-01 1282.2 1280.1 1219.8 1200
2024-12-01 1299.5 1299.5 1219.8 1200
2024-11-01 1299.5 1299.5 1219.8 1200
2024-10-01 1298.3 1299.5 1200 1200
2024-09-01 1329.4 1336.9 1200 1200
2024-11-01 1285.1 1281.5 1200 1200
2024-07-01 1285.1 1281.5 1200 1200
2024-06-01 1285.1 1281.5 1200 1200
2024-05-01 1285.1 1281.5 1200 1200
2024-04-01 1288.1 1283.3 1200 1200
2024-03-01 1288.1 1283.3 1200 1200
2024-02-01 1177.7 1171 1200 1200

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 2025 Mzansi Inter Provincial Team Championships (U18 Open) 2025-12-15 2025-12-17 Standard Nelson Mandela Bay (ENM) 6 6 1 Yes Analysis
2 Gauteng Inter-Region at Emerald Resort 2025 (U16+18 Candidates) 2025-12-06 2025-12-07 Standard Sedibeng (GSV) 5 5 1 Yes Analysis
3 2025 Tshwane South School District CLOSED League Championship (U17A) 2025-08-16 2025-08-16 Standard Tshwane (GTP) 5 3 3 Yes Analysis
4 2025 Etienne Lewis Closed Chess Tournament (U18) 2025-08-08 2025-08-10 Standard Tshwane (GTP) 7 7 2.5 Yes Analysis
5 Lubowski Open 2025 (D1) 2025-03-21 2025-03-22 Standard Tshwane (GTP) 5 5 4.5 Yes Analysis
6 AHS Open Chess Tournament 2025 (D) 2025-03-01 2025-03-01 Standard Tshwane (GTP) 5 5 3 Yes Analysis
7 Grey College Team Championship 2025 (A) 2025-02-21 2025-02-22 Standard Mangaung (FMB) 5 5 2 Yes Analysis
8 2025 Blou Bul Open Chess Tournament (D1) 2025-02-08 2025-02-08 Standard Tshwane (GTP) 5 5 4 Yes Analysis
9 2025 Piet Robbertse Fide Rated Open Chess Tournament (D) 2025-02-01 2025-02-02 Standard Tshwane (GTP) 5 5 4 Yes Analysis
10 Gauteng Inter-Region at UJ 2024 (U18 Candidates) 2024-12-07 2024-12-08 Standard Johannesburg Metro (GJM) 5 5 2.5 Yes Analysis
11 Gauteng Top Schools 2024 (U17 Open) 2024-10-05 2024-10-05 Rapid Ekurhuleni (GE) 5 5 3 Yes Analysis
12 2024 Etienne Lewis (U16) 2024-08-30 2024-09-01 Standard Tshwane (GTP) 7 6 2 Yes Analysis
13 2024 Alekhine Open Chess Tournament (B) 2024-08-09 2024-08-10 Standard Tshwane (GTP) 5 5 2 Yes Analysis
14 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U17A) 2024-08-03 2024-08-03 Standard Tshwane (GTP) 5 4 4 Yes Analysis
15 2024 Silver Lakes Open Chess Tournament (D2) 2024-04-20 2024-04-20 Standard Tshwane (GTP) 5 5 2 Yes Analysis
16 2024 Tshwane Chess AHS Open Chess Tournament (D2) 2024-02-24 2024-02-24 Standard Tshwane (GTP) 5 5 2.5 Yes Analysis
17 2024 Constantiapark Open (D2) 2024-02-17 2024-02-17 Standard Tshwane (GTP) 5 5 3.5 Yes Analysis
18 2024 Blou Bul Open Chess Tournament (D) 2024-02-10 2024-02-10 Standard Tshwane (GTP) 5 5 4 Yes Analysis
19 2023 Alekhine Open Tournament (D) 2023-09-09 2023-09-09 Standard Tshwane (GTP) 5 5 2.5 Yes Analysis
20 2023 Woman's Day Open Chess Tournament (Rook) 2023-08-09 2023-08-09 Standard Tshwane (GTP) 5 5 1 Yes Analysis
21 2023 Etienne Lewis Closed Tournament (U16) 2023-08-25 2023-08-27 Standard Tshwane (GTP) 7 7 2 Yes Analysis
22 2023 Menlo Open Tournament (C) 2023-07-22 2023-07-22 Standard Tshwane (GTP) 5 4 1 Yes Analysis
23 2023 Mid Gauteng Open Tournament (C) 2023-05-06 2023-05-06 Standard Tshwane (GTP) 5 5 2.5 Yes Analysis
24 Silver Lakes Open Chess Tournament (C) 2023-04-15 2023-04-15 Standard Tshwane (GTP) 5 5 2 Yes Analysis
25 Chris Greyling Open Tournament 2023 (C) 2023-03-21 2023-03-21 Standard Tshwane (GTP) 5 4 0 Yes Analysis
26 Tuks Junior Developmental Chess Tournament 2023 (Blue) 2023-03-18 2023-03-18 Standard Tshwane (GTP) 5 5 3 Yes Analysis
27 2023 Afrikaans Hoër Seunskool Open Chess Tournament (C) 2023-03-04 2023-03-04 Standard Tshwane (GTP) 5 5 2.5 Yes Analysis
28 Laerskool Constantiapark Open Chess Tournament 2023 (Open) 2023-02-18 2023-02-18 Standard Tshwane (GTP) 5 4 0 Yes Analysis
29 2022 South African Junior Team Chess Championships (U14 Open) 2022-12-04 2022-12-08 Standard 4 Knights (4K) 7 6 2 Yes Analysis
30 2022 Etienne Lewis (U14 Open) 2022-09-02 2022-09-04 Standard Tshwane (GTP) 7 7 3 Yes Analysis
31 Tuks Junior Developmental Tournament 2022 (Red) 2022-08-06 2022-08-06 Standard Tshwane (GTP) 5 5 4 Yes Analysis
32 2022 Alekhine Open (D) 2022-08-13 2022-08-14 Standard Tshwane (GTP) 5 5 3 Yes Analysis
33 2022 Menlo Open Tournament (D) 2022-07-23 2022-07-23 Standard Tshwane (GTP) 5 5 2 Yes Analysis
34 2022 Mid Gauteng Open (D) 2022-05-07 2022-05-07 Standard Tshwane (GTP) 5 5 3 Yes Analysis
35 2022 Lubowski Open Tournament (D) 2022-04-09 2022-04-10 Standard Tshwane (GTP) 5 5 1 Yes Analysis
36 2022 Chris Greyling Open (D) 2022-03-12 2022-03-12 Standard Tshwane (GTP) 5 5 2 Yes Analysis
37 Piet Robertse 2022 (D) 2022-02-05 2022-02-05 Standard Tshwane (GTP) 5 5 3 Yes Analysis
38 2022 Tshwane Chess Open Registration Tournament (D1) 2022-01-29 2022-01-29 Standard Tshwane (GTP) 5 5 1.5 Yes Analysis
39 2021 Gauteng North Open Tournament (D) 2021-08-28 2021-08-29 Standard Tshwane (GTP) 5 4 1.5 Yes Analysis

Top 3 Streaks

# Games Start End
1 7 Tournament
Gauteng Inter-Region at UJ 2024
Tournament
2025 Piet Robbertse Fide Rated Open Chess Tournament
date
2024-12-07
rnd
3
type
Standard
result
1
date
2025-02-02
rnd
4
type
Standard
result
1
Opponent
Mojaju, K (Kelebogile)
Opponent
Cherian, D (Daniel)
2 5 Tournament
Lubowski Open 2025
Tournament
Lubowski Open 2025
date
2025-03-21
rnd
1
type
Standard
result
1
date
2025-03-22
rnd
5
type
Standard
result
1
Opponent
Pretorius, E (Emil)
Opponent
Ramonyai, M (Motshabo)
3 5 Tournament
2024 Blou Bul Open Chess Tournament
Tournament
2024 Constantiapark Open
date
2024-02-10
rnd
5
type
Standard
result
1
date
2024-02-17
rnd
4
type
Standard
result
0.5
Opponent
Du Toit, C (Colenso)
Opponent
Strauss, L (Luné)
# Games Start End
1 7 Tournament
Gauteng Inter-Region at UJ 2024
Tournament
2025 Piet Robbertse Fide Rated Open Chess Tournament
date
2024-12-07
rnd
3
type
Standard
result
1
date
2025-02-02
rnd
4
type
Standard
result
1
Opponent
Mojaju, K (Kelebogile)
Opponent
Cherian, D (Daniel)
2 5 Tournament
Lubowski Open 2025
Tournament
Lubowski Open 2025
date
2025-03-21
rnd
1
type
Standard
result
1
date
2025-03-22
rnd
5
type
Standard
result
1
Opponent
Pretorius, E (Emil)
Opponent
Ramonyai, M (Motshabo)
3 5 Tournament
2024 Blou Bul Open Chess Tournament
Tournament
2024 Constantiapark Open
date
2024-02-10
rnd
5
type
Standard
result
1
date
2024-02-17
rnd
4
type
Standard
result
0.5
Opponent
Du Toit, C (Colenso)
Opponent
Strauss, L (Luné)
# Games Start End
1 2 Tournament
Gauteng Top Schools 2024
Tournament
Gauteng Top Schools 2024
date
2024-10-05
rnd
4
type
Rapid
result
1
date
2024-10-05
rnd
5
type
Rapid
result
1
Opponent
Fandisi, S (Siyabonga)
Opponent
Mboma, MP (Moise)
2 1 Tournament
Gauteng Top Schools 2024
Tournament
Gauteng Top Schools 2024
date
2024-10-05
rnd
2
type
Rapid
result
1
date
2024-10-05
rnd
2
type
Rapid
result
1
Opponent
Gosiame, T (Tsoene)
Opponent
Gosiame, T (Tsoene)
No games found.
# Games Start End
# Games Start End
1 4 Tournament
2025 Piet Robbertse Fide Rated Open Chess Tournament
Tournament
2025 Piet Robbertse Fide Rated Open Chess Tournament
date
2025-02-01
rnd
1
type
Standard
result
1
date
2025-02-02
rnd
4
type
Standard
result
1
Opponent
Weyer, E (Evan)
Opponent
Cherian, D (Daniel)
2 4 Tournament
D4 Tshwane South District Schools Teams Chess Tournament 2024
Tournament
D4 Tshwane South District Schools Teams Chess Tournament 2024
date
2024-08-03
rnd
2
type
Standard
result
1
date
2024-08-03
rnd
5
type
Standard
result
1
Opponent
Bulani, Y (Yeva)
Opponent
Roodt, E (Etienne)
3 4 Tournament
2024 Blou Bul Open Chess Tournament
Tournament
2024 Constantiapark Open
date
2024-02-10
rnd
5
type
Standard
result
1
date
2024-02-17
rnd
3
type
Standard
result
1
Opponent
Du Toit, C (Colenso)
Opponent
Schoeman, RR (Russo Robbertse)
# Games Start End
1 4 Tournament
2025 Piet Robbertse Fide Rated Open Chess Tournament
Tournament
2025 Piet Robbertse Fide Rated Open Chess Tournament
date
2025-02-01
rnd
1
type
Standard
result
1
date
2025-02-02
rnd
4
type
Standard
result
1
Opponent
Weyer, E (Evan)
Opponent
Cherian, D (Daniel)
2 4 Tournament
D4 Tshwane South District Schools Teams Chess Tournament 2024
Tournament
D4 Tshwane South District Schools Teams Chess Tournament 2024
date
2024-08-03
rnd
2
type
Standard
result
1
date
2024-08-03
rnd
5
type
Standard
result
1
Opponent
Bulani, Y (Yeva)
Opponent
Roodt, E (Etienne)
3 4 Tournament
2024 Blou Bul Open Chess Tournament
Tournament
2024 Constantiapark Open
date
2024-02-10
rnd
5
type
Standard
result
1
date
2024-02-17
rnd
3
type
Standard
result
1
Opponent
Du Toit, C (Colenso)
Opponent
Schoeman, RR (Russo Robbertse)
# Games Start End
1 2 Tournament
Gauteng Top Schools 2024
Tournament
Gauteng Top Schools 2024
date
2024-10-05
rnd
4
type
Rapid
result
1
date
2024-10-05
rnd
5
type
Rapid
result
1
Opponent
Fandisi, S (Siyabonga)
Opponent
Mboma, MP (Moise)
2 1 Tournament
Gauteng Top Schools 2024
Tournament
Gauteng Top Schools 2024
date
2024-10-05
rnd
2
type
Rapid
result
1
date
2024-10-05
rnd
2
type
Rapid
result
1
Opponent
Gosiame, T (Tsoene)
Opponent
Gosiame, T (Tsoene)
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 Kekana ,N (Neo) 3 2 141.7 3 2 141.7 0 0 0 0 0 0
1396.9 1538.5 1387.6 1538.5 0 0 0 0
2 Minny ,O (Oban) 3 1 -141.7 3 1 -141.7 0 0 0 0 0 0
1340.1 1198.4 1321.1 1198.4 0 0 0 0
3 Oosthuizen ,L (Ludrick) 3 0 -425 3 0 -425 0 0 0 0 0 0
1267.7 842.7 1255.2 842.7 0 0 0 0
4 Jooste ,J (Josh) 3 0 -425 3 0 -425 0 0 0 0 0 0
1414.5 989.5 1403.4 989.5 0 0 0 0
5 Niehaus ,SJ (Samuel Johannes) 2 1 0 2 1 0 0 0 0 0 0 0
1157.1 1157.1 1117.9 1157.1 0 0 0 0
6 Roberts ,F (Frans-Leigh) 2 1 0 2 1 0 0 0 0 0 0 0
1268.1 1268.1 1233.1 1268.1 0 0 0 0
7 Blom ,J (Jess) 2 0.5 -212.5 2 0.5 -212.5 0 0 0 0 0 0
1188.7 976.2 1200 976.2 0 0 0 0
8 Buchner ,E (Emil) 2 1 0 2 1 0 0 0 0 0 0 0
1181.3 1181.3 1181.6 1181.3 0 0 0 0
9 Van Staden ,R (Rikus) 2 1 0 2 1 0 0 0 0 0 0 0
1302.2 1302.2 1293.7 1302.2 0 0 0 0
10 Matsioloko ,O (Osega) 2 0 -425 2 0 -425 0 0 0 0 0 0
1366.2 941.2 1365.6 941.2 0 0 0 0

Norms

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