Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Jager, L (Leon)

Chess SA id

169061334

FIDE id

Date of birth

1969-01-20 (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	1297.3	1260.9	862.9	647
Raw rating	1297.3	1260.9	862.9	647
Weighted rating	1289.6	1250.5	861.8	647
Weighted performance	956.8	914.3	0	0
Floor	808.3	766.3	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	144.4	152	268	364.6
Highest rating	1333.9 2019-09-01	1309.3 2019-09-01	1273.3 2023-05-01	1200 2024-02-01
Highest raw rating	1308.3 2023-09-01	1266.3 2023-09-01	862.9 2024-02-01	647 2024-02-01
Highest weighted rating	1286.7 2025-08-01	1246.6 2025-08-01	862.9 2024-11-01	647 2024-11-01
Highest weighted performance	1333.9 2019-09-01	1309.3 2019-09-01	1273.3 2023-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1297.3	1260.9	862.9	647
Analysis
Rating	1297.3	1260.9	862.9	647
Raw rating	1297.3	1260.9	862.9	647
Weighted rating	1289.6	1250.5	861.8
Weighted performance	956.8	914.3	0
K-factor	36	36	40	40
Floor	808.3	766.3	500	500
Max/Min rating change allowed	144.4	152	268	364.6
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	1297.3	1260.9	862.9	647
New weighted rating	1290.9	1252.2	862.5	647
New weighted performance	956.4	913.9	0	0
Temp new rating	1297.3	1260.9	862.9	647
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1297.3	1260.9	862.9	647
New K-factor	36	36	40	40
New floor	808.3	766.3	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	8	8	0
	14	8	6
	25	25	0
	11	11	0
History	92	86	6

Games since
	Main 8	Standard 8		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	77	39	50.65	5.5	1298.1	1303.7
Standard	71	36.5	51.41	12	1288.2	1300.2
Rapid	6	2.5	41.67	-70.8	1416.1	1345.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1297.3	1260.9	862.9	647
2025-09-01	1297.3	1260.9	862.9	647
2025-08-01	1297.3	1260.9	862.9	647
2025-07-01	1297.3	1260.9	862.9	647
2025-06-01	1297.3	1260.9	862.9	647
2025-05-01	1297.3	1260.9	862.9	647
2025-04-01	1297.3	1260.9	862.9	647
2025-03-01	1297.3	1260.9	862.9	647
2025-02-01	1297.3	1260.9	862.9	647
2025-01-01	1297.3	1260.9	862.9	647
2024-12-01	1297.3	1260.9	862.9	647
2024-11-01	1297.3	1260.9	862.9	647
2024-10-01	1297.3	1260.9	862.9	647
2024-09-01	1262.3	1213.7	862.9	647
2024-08-01	1262.3	1213.7	862.9	647
2024-07-01	1262.3	1213.7	862.9	647
2024-06-01	1262.3	1213.7	862.9	647
2024-08-01	1262.3	1213.7	862.9	647
2024-04-01	1262.3	1213.7	862.9	647
2024-03-01	1262.3	1213.7	862.9	647
2024-02-01	1262.3	1213.7	862.9	647
2024-01-01	1262.3	1213.7	862.9	647
2023-12-01	1262.3	1213.7	745.8	647
2023-11-01	1262.3	1213.7	745.8	647

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 (C)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	2	1	Yes	Analysis
2	CT League 2024 (D)	2024-08-03	2024-08-03	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
3	WP Club League 2023 (D PlayOffs)	2023-09-02	2023-09-09	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
4	WP Club League 2023 (D1)	2023-07-29	2023-08-19	Standard	Cape Town (WCT)	6	3	3	Yes	Analysis
5	Steinitz Open 2023 (D)	2023-05-27	2023-05-27	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
6	Western Cape Club Championship 2022 (Tier 2)	2022-10-07	2022-10-09	Standard	Cape Town (WCT)	6	2	0	Yes	Analysis
7	2022 Western Province Club League (D)	2022-08-27	2022-10-01	Standard	Cape Town (WCT)	7	7	3	Yes	Analysis
8	South African Open 2022 (B)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	5.5	Yes	Analysis
9	Steinitz Open 2022 (C)	2022-05-21	2022-05-22	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
10	Western Cape Closed 2021 (Open)	2021-09-24	2021-09-25	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
11	Paul Roos Gymnasium Covid-19 Challenge 2021 (B)	2021-02-27	2021-02-28	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
12	2019 Western Cape Closed Chess Championships (D)	2019-09-21	2019-09-22	Standard	Cape Winelands (WCW)	6	6	5	Yes	Analysis
13	2019 Western Province League (C)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	2	0.5	Yes	Analysis
14	2019 Western Province League (D)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	5	2	Yes	Analysis
15	Western Cape Chess Club Championship Dec 2018	2018-12-08	2018-12-09	Standard	Eden (WEG)	6	6	2.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament CT League 2024				Tournament CT League 2024
		date 2024-08-03	rnd 2	type Standard	result 1	date 2024-08-03	rnd 6	type Standard	result 0.5
		Opponent Tyuthu, I (Iminathi)				Opponent Mccabe, S (Steven)
2	4	Tournament Western Cape Closed 2021				Tournament Steinitz Open 2022
		date 2021-09-25	rnd 5	type Standard	result 1	date 2022-05-21	rnd 2	type Standard	result 0.5
		Opponent Sampson, G (Grant)				Opponent Osborne, N (Nicole)
3	3	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 1
		Opponent Siteto, L (Lindokuhle)				Opponent Coombes, M (Michael)

#	Games	Start				End
1	5	Tournament CT League 2024				Tournament CT League 2024
		date 2024-08-03	rnd 2	type Standard	result 1	date 2024-08-03	rnd 6	type Standard	result 0.5
		Opponent Tyuthu, I (Iminathi)				Opponent Mccabe, S (Steven)
2	4	Tournament Western Cape Closed 2021				Tournament Steinitz Open 2022
		date 2021-09-25	rnd 5	type Standard	result 1	date 2022-05-21	rnd 2	type Standard	result 0.5
		Opponent Sampson, G (Grant)				Opponent Osborne, N (Nicole)
3	3	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 1
		Opponent Siteto, L (Lindokuhle)				Opponent Coombes, M (Michael)

#	Games	Start				End
1	2	Tournament Steinitz Open 2023				Tournament Steinitz Open 2023
		date 2023-05-27	rnd 2	type Rapid	result 1	date 2023-05-27	rnd 3	type Rapid	result 0.5
		Opponent Hunt-Davis, P (Peter)				Opponent Esau, O (Omar)
2	1	Tournament Steinitz Open 2023				Tournament Steinitz Open 2023
		date 2023-05-27	rnd 5	type Rapid	result 1	date 2023-05-27	rnd 5	type Rapid	result 1
		Opponent Ramlall, R (Rahul)				Opponent Ramlall, R (Rahul)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 1
		Opponent Siteto, L (Lindokuhle)				Opponent Coombes, M (Michael)
2	3	Tournament Western Cape Closed 2021				Tournament Steinitz Open 2022
		date 2021-09-25	rnd 5	type Standard	result 1	date 2022-05-21	rnd 1	type Standard	result 1
		Opponent Sampson, G (Grant)				Opponent Prins, J (James)
3	3	Tournament 2019 Western Cape Closed Chess Championships				Tournament 2019 Western Cape Closed Chess Championships
		date 2019-09-22	rnd 4	type Standard	result 1	date 2019-09-22	rnd 6	type Standard	result 1
		Opponent Strydom, H (Henroux)				Opponent Jonkers, T (Tristan)

#	Games	Start				End
1	3	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 1
		Opponent Siteto, L (Lindokuhle)				Opponent Coombes, M (Michael)
2	3	Tournament Western Cape Closed 2021				Tournament Steinitz Open 2022
		date 2021-09-25	rnd 5	type Standard	result 1	date 2022-05-21	rnd 1	type Standard	result 1
		Opponent Sampson, G (Grant)				Opponent Prins, J (James)
3	3	Tournament 2019 Western Cape Closed Chess Championships				Tournament 2019 Western Cape Closed Chess Championships
		date 2019-09-22	rnd 4	type Standard	result 1	date 2019-09-22	rnd 6	type Standard	result 1
		Opponent Strydom, H (Henroux)				Opponent Jonkers, T (Tristan)

#	Games	Start				End
1	1	Tournament Steinitz Open 2023				Tournament Steinitz Open 2023
		date 2023-05-27	rnd 5	type Rapid	result 1	date 2023-05-27	rnd 5	type Rapid	result 1
		Opponent Ramlall, R (Rahul)				Opponent Ramlall, R (Rahul)
2	1	Tournament Steinitz Open 2023				Tournament Steinitz Open 2023
		date 2023-05-27	rnd 2	type Rapid	result 1	date 2023-05-27	rnd 2	type Rapid	result 1
		Opponent Hunt-Davis, P (Peter)				Opponent Hunt-Davis, P (Peter)

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
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	De Jager ,AJ (Andreas Johannes)	2	0	-425	1	0	-425	1	0	-425	0	0	0
1	De Jager ,AJ (Andreas Johannes)	2	1773.2	1348.2	1	1665.1	1348.2	1	1715.2	1348.2	0	0	0
2	Amardien ,A (Rafiek)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Amardien ,A (Rafiek)	1	1230	805	1	1230	805	0	0	0	0	0	0
3	Sampson ,G (Grant)	1	1	425	1	1	425	0	0	0	0	0	0
3	Sampson ,G (Grant)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Siyo ,A (Ayabulela)	1	1	425	1	1	425	0	0	0	0	0	0
4	Siyo ,A (Ayabulela)	1	1259.8	1684.8	1	1237	1684.8	0	0	0	0	0	0
5	De Meyer ,W (Wilbur)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	De Meyer ,W (Wilbur)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Karsten ,JD (Jan Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Karsten ,JD (Jan Daniel)	1	1227	802	1	1199.4	802	0	0	0	0	0	0
7	Jaffer ,U (Uzair)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Jaffer ,U (Uzair)	1	1431.3	1431.3	1	1424.5	1431.3	0	0	0	0	0	0
8	Flink ,AA (Angelo Ashley)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Flink ,AA (Angelo Ashley)	1	1525.5	1100.5	1	1521.8	1100.5	0	0	0	0	0	0
9	Adams ,K (Kyron)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Adams ,K (Kyron)	1	1310.2	885.2	1	1269	885.2	0	0	0	0	0	0
10	Petersen ,K (Kyle)	1	1	425	1	1	425	0	0	0	0	0	0
10	Petersen ,K (Kyle)	1	1113.5	1538.5	1	1102.8	1538.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

De Jager, L (Leon)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms