Chess South Africa Ratings Database

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Personal

De Jager, LJ (Luan Johannes)

Chess SA id

100006449

FIDE id

Date of birth

2000-01-17 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

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	1861.7	1870.7	1761.7	1830
Raw rating	1861.7	1870.7	1761.7	1830
Weighted rating	1859.5	1868.5	1761.7	1830
Weighted performance	1345.9	1331	605.4	0
Floor	1377.3	1395.8	1363.4	1363.4
K-factor	24	24	24	24
Min/Max rating change allowed	64.6	63.8	74.5	67.6
Highest rating	1877.3 2020-01-01	1933.4 2018-01-01	1863.4 2018-01-01	1863.4 2018-01-01
Highest raw rating	1877.3 2020-01-01	1895.8 2020-01-01	1863.4 2018-01-01	1863.4 2018-01-01
Highest weighted rating	1877.3 2021-02-01	1895.8 2021-02-01	1863.4 2018-01-01	1863.4 2018-01-01
Highest weighted performance	1861.9 2019-12-01	1933.4 2018-01-01	1552.2 2018-11-01	1725.7 2018-11-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1861.7	1870.7	1761.7	1830
Analysis
Rating	1861.7	1870.7	1761.7	1830
Raw rating	1861.7	1870.7	1761.7	1830
Weighted rating	1859.5	1868.5	1761.7
Weighted performance	1345.9	1331	605.4
K-factor	24	24	24	24
Floor	1377.3	1395.8	1363.4	1363.4
Max/Min rating change allowed	64.6	63.8	74.5	67.6
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	1861.7	1870.7	1761.7	1830
New weighted rating	1859.9	1869	1761.7	1830
New weighted performance	1335.4	1320.4	595.6	0
Temp new rating	1861.7	1870.7	1761.7	1830
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1861.7	1870.7	1761.7	1830
New K-factor	24	24	24	24
New floor	1377.3	1395.8	1363.4	1363.4

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	9	9	0	0
	26	20	6	0
	38	38	0	0
	16	16	0	0
History	896	751	87	58

Games since
	Main 9	Standard 9		Rapid 0		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	234	153	65.38	130.8	1642.2	1773
Standard	181	127.5	70.44	173.8	1622.4	1796.2
Rapid	34	19	55.88	50	1617.1	1667.1
Blitz	19	6.5	34.21	-134.2	1876.1	1741.9

Date	Main	Standard	Rapid	Blitz
2025-11-01	1861.7	1870.7	1761.7	1830
2025-09-30	1861.7	1870.7	1761.7	1830
2025-09-01	1861.7	1870.7	1761.7	1830
2025-08-01	1861.7	1870.7	1761.7	1830
2025-07-01	1861.7	1870.7	1761.7	1830
2025-06-01	1861.7	1870.7	1761.7	1830
2025-05-01	1861.7	1870.7	1761.7	1830
2025-04-01	1861.7	1870.7	1761.7	1830
2025-03-01	1861.7	1870.7	1761.7	1830
2025-02-01	1861.7	1870.7	1761.7	1830
2025-01-01	1861.7	1870.7	1761.6	1830
2024-12-01	1861.7	1870.7	1761.6	1830
2024-11-01	1861.7	1870.7	1761.6	1830
2024-10-01	1861.7	1870.7	1761.6	1830
2024-09-01	1850	1859.4	1761.6	1830
2024-08-01	1850	1859.4	1761.6	1830
2024-07-01	1850	1859.4	1761.6	1830
2024-09-01	1850	1859.4	1761.6	1830
2024-05-01	1850	1859.4	1761.6	1830
2024-04-01	1850	1859.4	1761.6	1830
2024-03-01	1850	1859.4	1761.6	1830
2024-02-01	1850	1859.4	1761.6	1830
2024-01-01	1850	1859.4	1761.6	1830
2023-12-01	1834.7	1833.2	1761.6	1830

Comming soon.

Tournaments

History

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	7	Yes	Analysis
2	WP Club League 2023 (A)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	11	8.5	Yes	Analysis
3	Steinitz Open 2023 (D)	2023-05-27	2023-05-27	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
4	Cape Town Masters Challenge 2023 (Masters)	2023-01-04	2023-01-08	Standard	Cape Town (WCT)	9	9	4.5	Yes	Analysis
5	Western Cape Club Championship 2022 (Tier 1)	2022-10-07	2022-10-09	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
6	2022 Western Province Club League (Premier)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	11	8.5	Yes	Analysis
7	South African Open 2022 (Championship)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	6	Yes	Analysis
8	Steinitz Open 2022 (A)	2022-05-20	2022-05-22	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
9	Western Cape Inter Region Cup 2021 (Senior)	2022-03-04	2022-03-06	Standard	West Coast (WCU)	5	4	3.5	Yes	Analysis
10	Western Cape Club Championships 2021 (A)	2021-10-15	2021-10-17	Standard	Eden (WEG)	6	6	4	Yes	Analysis
11	Western Cape Closed 2021 (Championship)	2021-09-24	2021-09-26	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
12	Paul Roos Gymnasium Covid-19 Challenge 2021 (A)	2021-02-27	2021-02-28	Standard	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis
13	Nelson Mandela Rapid 2020 (Open)	2020-02-01	2020-02-01	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
14	2019 South African Closed Chess Championships (U20 Open)	2019-12-07	2019-12-14	Standard	Cape Town (WCT)	11	10	6.5	Yes	Analysis
15	2019 Western Cape Club Championship (A+B)	2019-10-25	2019-10-27	Standard	Overberg (WOS)	6	4	4	Yes	Analysis
16	2019 National Club Chess Championships (A)	2019-09-27	2019-09-29	Standard	Cape Town (WCT)	6	5	3.5	Yes	Analysis
17	2019 Western Cape Closed Chess Championships (Elite)	2019-09-21	2019-09-24	Standard	Cape Winelands (WCW)	6	5	2.5	Yes	Analysis
18	2019 Western Province League (Premier)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	8	7	Yes	Analysis
19	Steinitz Chess Festival 2019 (A)	2019-04-05	2019-04-07	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
20	Nelson Mandela Rapid 2019 (Open)	2019-03-02	2019-03-02	Rapid	Cape Town (WCT)	5	5	3.5	Yes	Analysis
21	Western Cape Chess Club Championship Dec 2018	2018-12-08	2018-12-09	Standard	Eden (WEG)	6	6	5.5	Yes	Analysis
22	Graham Solomon Memorial 2018 (Rapid)	2018-11-24	2018-11-24	Rapid	Cape Town (WCT)	6	6	0	Yes	Analysis
23	Graham Solomon Memorial 2018 (Blitz)	2018-11-25	2018-11-25	Blitz	Cape Town (WCT)	12	12	3	Yes	Analysis
24	2018 Western Province League (Premier)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	11	8	Yes	Analysis
25	Western Cape Top Schools 2018 (U19 Mix)	2018-08-25	2018-08-26	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
26	Drakenstein Dragons Rapid 2018 (Open)	2018-06-09	2018-06-09	Rapid	Cape Winelands (WCW)	7	7	4	Yes	Analysis
27	Western Cape Schools Individuals 2018 (U18 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
28	Cape Town Chess Club Blitz 2018	2018-04-24	2018-04-24	Blitz	Cape Town (WCT)	7	7	3.5	Yes	Analysis
29	2018 WP Schools Closed Trials (U18 Boys)	2018-03-09	2018-03-10	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
30	2018 Steinitz Chess Festival (Prestige)	2018-03-21	2018-03-25	Standard	Cape Town (WCT)	7	7	4.5	Yes	Analysis
31	District North Schools Chess Open Trials 2018 (U18)	2018-02-09	2018-02-10	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
32	Steinitz Club Rapid 2018	2018-01-10	2018-01-24	Rapid	Cape Town (WCT)	6	4	3	Yes	Analysis
33	2018 Cape of Good Hope Open Chess Championships (Elite)	2018-01-26	2018-01-28	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
34	South African Junior Team Championships 2017 (U18A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis

#	Games	Start				End
1	16	Tournament 2018 Cape of Good Hope Open Chess Championships				Tournament 2018 Steinitz Chess Festival
		date 2018-01-27	rnd 4	type Standard	result 1	date 2018-03-21	rnd 1	type Standard	result 1
		Opponent Lawrence, G (Gordon)				Opponent Schnabel, JE (Emil)
2	14	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-08-04	rnd 1	type Standard	result 0.5	date 2018-09-08	rnd 9	type Standard	result 0.5
		Opponent Latreche, K (Khadidja)				Opponent Pick, DD (Deon)
3	11	Tournament Western Cape Club Championships 2021				Tournament Steinitz Open 2022
		date 2021-10-16	rnd 4	type Standard	result 0.5	date 2022-05-21	rnd 4	type Standard	result 1
		Opponent Willenberg, T (Tristan)				Opponent Willenberg, SC (Shane)

#	Games	Start				End
1	23	Tournament 2018 Steinitz Chess Festival				Tournament 2018 Western Province League
		date 2018-03-24	rnd 5	type Standard	result 1	date 2018-09-08	rnd 9	type Standard	result 0.5
		Opponent Fisher, M (Michelle)				Opponent Pick, DD (Deon)
2	16	Tournament 2018 Cape of Good Hope Open Chess Championships				Tournament 2018 Steinitz Chess Festival
		date 2018-01-27	rnd 4	type Standard	result 1	date 2018-03-21	rnd 1	type Standard	result 1
		Opponent Lawrence, G (Gordon)				Opponent Schnabel, JE (Emil)
3	11	Tournament Western Cape Club Championships 2021				Tournament Steinitz Open 2022
		date 2021-10-16	rnd 4	type Standard	result 0.5	date 2022-05-21	rnd 4	type Standard	result 1
		Opponent Willenberg, T (Tristan)				Opponent Willenberg, SC (Shane)

#	Games	Start				End
1	5	Tournament Nelson Mandela Rapid 2020				Tournament Steinitz Open 2023
		date 2020-02-01	rnd 5	type Rapid	result 1	date 2023-05-27	rnd 3	type Rapid	result 1
		Opponent Willenberg, RC (Roland)				Opponent Eyberg, Z (Zoe)
2	5	Tournament Nelson Mandela Rapid 2019				Tournament Nelson Mandela Rapid 2020
		date 2019-03-02	rnd 3	type Rapid	result 1	date 2020-02-01	rnd 2	type Rapid	result 1
		Opponent Cilliers, S (Salmo)				Opponent Meyer, J (Jeff)
3	3	Tournament Steinitz Club Rapid 2018				Tournament Drakenstein Dragons Rapid 2018
		date 2018-01-17	rnd 4	type Rapid	result 1	date 2018-06-09	rnd 2	type Rapid	result 1
		Opponent De Jong, I (Ian)				Opponent Njenda, DT (Duncan)

#	Games	Start				End
1	3	Tournament Cape Town Chess Club Blitz 2018				Tournament Cape Town Chess Club Blitz 2018
		date 2018-04-24	rnd 1	type Blitz	result 1	date 2018-04-24	rnd 3	type Blitz	result 0.5
		Opponent Hlakula, T (Thando)				Opponent Bhawoodien, SH (Shabier)
2	2	Tournament Graham Solomon Memorial 2018				Tournament Graham Solomon Memorial 2018
		date 2018-11-25	rnd 8	type Blitz	result 0.5	date 2018-11-25	rnd 9	type Blitz	result 1
		Opponent Solomon, MC (Maxwell)				Opponent Willenberg, KS (Kenneth)
3	1	Tournament Graham Solomon Memorial 2018				Tournament Graham Solomon Memorial 2018
		date 2018-11-25	rnd 11	type Blitz	result 0.5	date 2018-11-25	rnd 11	type Blitz	result 0.5
		Opponent Willenberg, A (Athon)				Opponent Willenberg, A (Athon)

#	Games	Start				End
1	9	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-08-18	rnd 5	type Standard	result 1	date 2018-09-01	rnd 8	type Standard	result 1
		Opponent Galant, W (Warren)				Opponent Meiboom Jnr, G (Gerrit)
2	6	Tournament Western Cape Inter Region Cup 2021				Tournament Steinitz Open 2022
		date 2022-03-05	rnd 4	type Standard	result 1	date 2022-05-21	rnd 4	type Standard	result 1
		Opponent Mackay, A (Ashlin)				Opponent Willenberg, SC (Shane)
3	6	Tournament 2019 National Club Chess Championships				Tournament 2019 South African Closed Chess Championships
		date 2019-09-29	rnd 6	type Standard	result 1	date 2019-12-07	rnd 1	type Standard	result 1
		Opponent Geduld, JM (Jamie)				Opponent Van Schaik, M (Migael)

#	Games	Start				End
1	9	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-08-18	rnd 5	type Standard	result 1	date 2018-09-01	rnd 8	type Standard	result 1
		Opponent Galant, W (Warren)				Opponent Meiboom Jnr, G (Gerrit)
2	6	Tournament Western Cape Inter Region Cup 2021				Tournament Steinitz Open 2022
		date 2022-03-05	rnd 4	type Standard	result 1	date 2022-05-21	rnd 4	type Standard	result 1
		Opponent Mackay, A (Ashlin)				Opponent Willenberg, SC (Shane)
3	6	Tournament 2019 National Club Chess Championships				Tournament 2019 South African Closed Chess Championships
		date 2019-09-29	rnd 6	type Standard	result 1	date 2019-12-07	rnd 1	type Standard	result 1
		Opponent Geduld, JM (Jamie)				Opponent Van Schaik, M (Migael)

#	Games	Start				End
1	5	Tournament Nelson Mandela Rapid 2020				Tournament Steinitz Open 2023
		date 2020-02-01	rnd 5	type Rapid	result 1	date 2023-05-27	rnd 3	type Rapid	result 1
		Opponent Willenberg, RC (Roland)				Opponent Eyberg, Z (Zoe)
2	3	Tournament Steinitz Club Rapid 2018				Tournament Drakenstein Dragons Rapid 2018
		date 2018-01-17	rnd 4	type Rapid	result 1	date 2018-06-09	rnd 2	type Rapid	result 1
		Opponent De Jong, I (Ian)				Opponent Njenda, DT (Duncan)
3	2	Tournament Nelson Mandela Rapid 2020				Tournament Nelson Mandela Rapid 2020
		date 2020-02-01	rnd 1	type Rapid	result 1	date 2020-02-01	rnd 2	type Rapid	result 1
		Opponent Bosman, P (Petrus)				Opponent Meyer, J (Jeff)

#	Games	Start				End
1	2	Tournament Cape Town Chess Club Blitz 2018				Tournament Cape Town Chess Club Blitz 2018
		date 2018-04-24	rnd 1	type Blitz	result 1	date 2018-04-24	rnd 2	type Blitz	result 1
		Opponent Hlakula, T (Thando)				Opponent Pearson, GEC (Grahame)
2	1	Tournament Graham Solomon Memorial 2018				Tournament Graham Solomon Memorial 2018
		date 2018-11-25	rnd 9	type Blitz	result 1	date 2018-11-25	rnd 9	type Blitz	result 1
		Opponent Willenberg, KS (Kenneth)				Opponent Willenberg, KS (Kenneth)
3	1	Tournament Graham Solomon Memorial 2018				Tournament Graham Solomon Memorial 2018
		date 2018-11-25	rnd 2	type Blitz	result 1	date 2018-11-25	rnd 2	type Blitz	result 1
		Opponent Salimu, R (Reuben)				Opponent Salimu, R (Reuben)

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	De Jager ,AJ (Andreas Johannes)	5	0.5	-340	4	0.5	-318.8	1	0	-425	0	0	0
1	De Jager ,AJ (Andreas Johannes)	5	1846.3	1506.3	4	1839.8	1527.6	1	1715.2	1421.3	0	0	0
2	Ohlson ,C (Cecil)	4	3.5	318.8	4	3.5	318.8	0	0	0	0	0	0
2	Ohlson ,C (Cecil)	4	1645.8	1964.5	4	1641.9	1964.5	0	0	0	0	0	0
3	Samuels ,ER (Ethan)	4	2	0	3	1.5	0	1	0.5	0	0	0	0
3	Samuels ,ER (Ethan)	4	1815	1815	3	1765.3	1815	1	1804.6	1815	0	0	0
4	Willenberg ,CG (Craig Glen)	4	0.5	-318.8	1	0.5	0	2	0	-425	1	0	-425
4	Willenberg ,CG (Craig Glen)	4	2119.8	1801	1	2112	2119.8	2	2170.8	1694.8	1	2158.7	1694.8
5	Salimu ,R (Reuben)	4	2	0	1	1	425	1	0	-425	2	1	0
5	Salimu ,R (Reuben)	4	1924.8	1924.8	1	1944.6	2349.8	1	2013.9	1499.8	2	1952.8	1924.8
6	Bhawoodien ,SH (Shabier Husain)	4	1.5	-106.2	1	1	425	1	0	-425	2	0.5	-212.5
6	Bhawoodien ,SH (Shabier Husain)	4	2078.1	1971.8	1	2019.3	2503.1	1	2132	1653.1	2	2132.9	1865.6
7	Van Der Merwe ,A (Alexander)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
7	Van Der Merwe ,A (Alexander)	3	1735.7	1735.7	3	1751.8	1735.7	0	0	0	0	0	0
8	Klaasen ,RJ (Robyn Julian)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
8	Klaasen ,RJ (Robyn Julian)	3	1626.7	1910	3	1628.6	1910	0	0	0	0	0	0
9	Flores Bartoli ,A (Andrew)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
9	Flores Bartoli ,A (Andrew)	3	1685.2	1968.5	3	1688.4	1968.5	0	0	0	0	0	0
10	Lawrence ,G (Gordon)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
10	Lawrence ,G (Gordon)	3	1824.7	1966.4	3	1824.3	1966.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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De Jager, LJ (Luan Johannes)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms