Chess South Africa Ratings Database

PLAYER PAGE

Personal

Janse Van Rensburg, J (Jack)

Chess SA id

179013667

FIDE id

Date of birth

1979-09-30 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-05-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1336.5	1322.8	1296	1300
Raw rating	1336.5	1322.8	1296	1300
Weighted rating	1336.5	1322.8	1295.6	1299.7
Weighted performance	780.6	772.1	0	0
Floor	851.9	842.6	796	800
K-factor	36	36	36	36
Min/Max rating change allowed	136.5	139.2	144.6	143.8
Highest rating	1469.4 2021-03-01	1573.2 2021-03-01	1296 2024-02-01	1300 2024-02-01
Highest raw rating	1351.9 2022-08-01	1342.6 2022-08-01	1296 2024-02-01	1300 2024-02-01
Highest weighted rating	1351.9 2025-04-01	1342.6 2025-04-01	1292.5 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1469.4 2021-03-01	1573.2 2021-03-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1336.5	1322.8	1296	1300
Analysis
Rating	1336.5	1322.8	1296	1300
Raw rating	1336.5	1322.8	1296	1300
Weighted rating	1336.5	1322.8	1295.6
Weighted performance	780.6	772.1	0
K-factor	36	36	36	36
Floor	851.9	842.6	796	800
Max/Min rating change allowed	136.5	139.2	144.6	143.8
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	1336.5	1322.8	1296	1300
New weighted rating	1336.5	1322.8	1296	1300
New weighted performance	772.8	764.5	0	0
Temp new rating	1336.5	1322.8	1296	1300
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1336.5	1322.8	1296	1300
New K-factor	36	36	36	36
New floor	851.9	842.6	796	800

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	10	10	0
	30	30	0
	23	18	5
History	63	58	5

Games since
	Main 0	Standard 0		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	63	28.5	45.24	-40.5	1395.5	1355
Standard	58	26.5	45.69	-36.6	1396.6	1360
Rapid	5	2	40	-85	1382.5	1297.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1336.5	1322.8	1296	1300
2025-09-30	1336.5	1322.8	1296	1300
2025-09-01	1336.5	1322.8	1296	1300
2025-08-01	1336.5	1322.8	1296	1300
2025-07-01	1336.5	1322.8	1296	1300
2025-06-01	1336.5	1322.8	1296	1300
2025-05-01	1336.5	1322.8	1296	1300
2025-04-01	1336.5	1322.8	1296	1300
2025-03-01	1336.5	1322.8	1296	1300
2025-02-01	1336.5	1322.8	1296	1300
2025-01-01	1336.5	1322.8	1296	1300
2024-12-01	1336.5	1322.8	1296	1300
2024-11-01	1336.5	1322.8	1296	1300
2024-10-01	1336.5	1322.8	1296	1300
2024-09-01	1336.5	1322.8	1296	1300
2024-08-01	1336.5	1322.8	1296	1300
2024-07-01	1336.5	1322.8	1296	1300
2024-09-01	1336.5	1322.8	1296	1300
2024-05-01	1336.5	1322.8	1296	1300
2024-04-01	1336.5	1322.8	1296	1300
2024-03-01	1336.5	1322.8	1296	1300
2024-02-01	1336.5	1322.8	1296	1300
2024-01-01	1336.5	1322.8	1296	1300
2023-12-01	1336.5	1322.8	1190	1200

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	Mzansi Fide Open 2023 (Intermediate)	2023-04-27	2023-05-01	Standard	Johannesburg Metro (GJM)	6	4	3	Yes	Analysis
2	Cape Town Open 2023 (Advanced)	2023-03-24	2023-03-26	Standard	Cape Town (WCT)	6	6	1.5	Yes	Analysis
3	2022 Western Province Club League (B)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	2	0	Yes	Analysis
4	2022 Western Province Club League (C)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	1	0	Yes	Analysis
5	South African Open 2022 (B)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	5.5	Yes	Analysis
6	Western Province Open 2022 (Advanced)	2022-02-25	2022-02-27	Standard	Cape Town (WCT)	6	4	1	Yes	Analysis
7	Kraaifontein Open 2022 (Advanced)	2022-01-07	2022-01-09	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
8	2022 Cape Of Good Hope Open (Advanced)	2022-01-28	2022-01-30	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
9	CWP Closed 2021 (Open)	2021-09-18	2021-09-19	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
10	WP Open 2021 (Prestige)	2021-05-08	2021-05-09	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
11	Western Cape Closed 2020 (Prestige)	2021-03-27	2021-03-28	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
12	Western Cape Closed 2020 (Rapid)	2021-03-06	2021-03-06	Rapid	Cape Town (WCT)	7	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament Western Cape Closed 2020				Tournament WP Open 2021
		date 2021-03-28	rnd 4	type Standard	result 1	date 2021-05-08	rnd 1	type Standard	result 1
		Opponent Botes, R (Renier)				Opponent Beni, S (Siyanda)
2	3	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-13	rnd 7	type Standard	result 1	date 2022-07-16	rnd 9	type Standard	result 0.5
		Opponent Byrnes, E (Errol)				Opponent Shipley, JM (Jarrad)
3	3	Tournament WP Open 2021				Tournament CWP Closed 2021
		date 2021-05-09	rnd 6	type Standard	result 1	date 2021-09-18	rnd 2	type Standard	result 1
		Opponent Maxwell, T (Tristan)				Opponent Gwatidzo, G (Gilbert)

#	Games	Start				End
1	4	Tournament Western Cape Closed 2020				Tournament WP Open 2021
		date 2021-03-28	rnd 4	type Standard	result 1	date 2021-05-08	rnd 1	type Standard	result 1
		Opponent Botes, R (Renier)				Opponent Beni, S (Siyanda)
2	3	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-13	rnd 7	type Standard	result 1	date 2022-07-16	rnd 9	type Standard	result 0.5
		Opponent Byrnes, E (Errol)				Opponent Shipley, JM (Jarrad)
3	3	Tournament WP Open 2021				Tournament CWP Closed 2021
		date 2021-05-09	rnd 6	type Standard	result 1	date 2021-09-18	rnd 2	type Standard	result 1
		Opponent Maxwell, T (Tristan)				Opponent Gwatidzo, G (Gilbert)

#	Games	Start				End
1	2	Tournament Western Cape Closed 2020				Tournament Western Cape Closed 2020
		date 2021-03-06	rnd 2	type Rapid	result 1	date 2021-03-06	rnd 3	type Rapid	result 1
		Opponent Van Zyl, M (Mea)				Opponent Lielieveld, J (Jadrian)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Western Cape Closed 2020				Tournament WP Open 2021
		date 2021-03-28	rnd 4	type Standard	result 1	date 2021-05-08	rnd 1	type Standard	result 1
		Opponent Botes, R (Renier)				Opponent Beni, S (Siyanda)
2	3	Tournament WP Open 2021				Tournament CWP Closed 2021
		date 2021-05-09	rnd 6	type Standard	result 1	date 2021-09-18	rnd 2	type Standard	result 1
		Opponent Maxwell, T (Tristan)				Opponent Gwatidzo, G (Gilbert)
3	2	Tournament Mzansi Fide Open 2023				Tournament Mzansi Fide Open 2023
		date 2023-04-28	rnd 3	type Standard	result 1	date 2023-04-30	rnd 5	type Standard	result 1
		Opponent Kwak, J (Jaeson)				Opponent Barker, R (Ryan)

#	Games	Start				End
1	4	Tournament Western Cape Closed 2020				Tournament WP Open 2021
		date 2021-03-28	rnd 4	type Standard	result 1	date 2021-05-08	rnd 1	type Standard	result 1
		Opponent Botes, R (Renier)				Opponent Beni, S (Siyanda)
2	3	Tournament WP Open 2021				Tournament CWP Closed 2021
		date 2021-05-09	rnd 6	type Standard	result 1	date 2021-09-18	rnd 2	type Standard	result 1
		Opponent Maxwell, T (Tristan)				Opponent Gwatidzo, G (Gilbert)
3	2	Tournament Mzansi Fide Open 2023				Tournament Mzansi Fide Open 2023
		date 2023-04-28	rnd 3	type Standard	result 1	date 2023-04-30	rnd 5	type Standard	result 1
		Opponent Kwak, J (Jaeson)				Opponent Barker, R (Ryan)

#	Games	Start				End
1	2	Tournament Western Cape Closed 2020				Tournament Western Cape Closed 2020
		date 2021-03-06	rnd 2	type Rapid	result 1	date 2021-03-06	rnd 3	type Rapid	result 1
		Opponent Van Zyl, M (Mea)				Opponent Lielieveld, J (Jadrian)

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	Nel ,RA (Rowan)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Nel ,RA (Rowan)	2	1419.8	994.8	2	1412.4	994.8	0	0	0	0	0	0
2	Parenzee ,E (Ethan)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Parenzee ,E (Ethan)	2	1543.8	1118.8	2	1525.9	1118.8	0	0	0	0	0	0
3	Van Tonder ,W (Wium)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
3	Van Tonder ,W (Wium)	2	1546.1	1333.6	2	1540.2	1333.6	0	0	0	0	0	0
4	Chikwava ,R (Ronald)	1	1	425	1	1	425	0	0	0	0	0	0
4	Chikwava ,R (Ronald)	1	1527.6	1952.6	1	1531.4	1952.6	0	0	0	0	0	0
5	Naude ,J (Jan-Daniel)	1	1	425	1	1	425	0	0	0	0	0	0
5	Naude ,J (Jan-Daniel)	1	1155.9	1580.9	1	1129.4	1580.9	0	0	0	0	0	0
6	Woolf ,C (Charne)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Woolf ,C (Charne)	1	1485.2	1060.2	1	1485.2	1060.2	0	0	0	0	0	0
7	Christian ,D (D)	1	1	425	1	1	425	0	0	0	0	0	0
7	Christian ,D (D)	1	1153.5	1578.5	1	1144	1578.5	0	0	0	0	0	0
8	Gwatidzo ,G (Gilbert)	1	1	425	1	1	425	0	0	0	0	0	0
8	Gwatidzo ,G (Gilbert)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	De Wit ,M (Marnus)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	De Wit ,M (Marnus)	1	1549.5	1124.5	1	1528.9	1124.5	0	0	0	0	0	0
10	Adriaan ,RD (Rynauw Divano)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Adriaan ,RD (Rynauw Divano)	1	1123.5	698.5	1	1123.5	698.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Janse Van Rensburg, J (Jack)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms