Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Schalkwyk, JM (Jan-Maarten)

Chess SA id

107049633

FIDE id

Date of birth

2007-07-07 (U20)

Gender

Male

Region

Gert Sibande (MGS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-08-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1130	970.4	1166.4	970.4
Raw rating	1130	970.4	1166.4	970.4
Weighted rating	1130	970.4	1166.4	970.4
Weighted performance	424.5	0	436.3	0
Floor	630	500	666.4	500
K-factor	40	40	40	40
Min/Max rating change allowed	183.2	230	173.9	230
Highest rating	1214.4 2018-05-01	1200 2024-02-01	1207.6 2018-05-01	1200 2024-02-01
Highest raw rating	1130 2024-02-01	970.4 2024-02-01	1166.4 2024-02-01	970.4 2024-02-01
Highest weighted rating	1130 2024-11-01	970.4 2024-11-01	1166.4 2024-11-01	970.4 2024-11-01
Highest weighted performance	1214.4 2018-05-01	1200 2024-02-01	1207.6 2018-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1130	970.4	1166.4	970.4
Analysis
Rating	1130	970.4	1166.4	970.4
Raw rating	1130	970.4	1166.4	970.4
Weighted rating	1130	970.4	1166.4
Weighted performance	424.5	0	436.3
K-factor	40	40	40	40
Floor	630	500	666.4	500
Max/Min rating change allowed	183.2	230	173.9	230
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	1130	970.4	1166.4	970.4
New weighted rating	1130	970.4	1166.4	970.4
New weighted performance	417.3	0	429	0
Temp new rating	1130	970.4	1166.4	970.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1130	970.4	1166.4	970.4
New K-factor	40	40	40	40
New floor	630	500	666.4	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	5	0	5
	0	0	0
History	155	120	35

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Gert Sibande (MGS)
Province	Mpumalanga (MP)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	25	18	72	187	1048.5	1235.5
Standard	0	0	0	0	0	0
Rapid	25	18	72	187	1048.5	1235.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1130	970.4	1166.4	970.4
2025-09-30	1130	970.4	1166.4	970.4
2025-09-01	1130	970.4	1166.4	970.4
2025-08-01	1130	970.4	1166.4	970.4
2025-07-01	1130	970.4	1166.4	970.4
2025-06-01	1130	970.4	1166.4	970.4
2025-05-01	1130	970.4	1166.4	970.4
2025-04-01	1130	970.4	1166.4	970.4
2025-03-01	1130	970.4	1166.4	970.4
2025-02-01	1130	970.4	1166.4	970.4
2025-01-01	1130	970.4	1166.4	970.4
2024-12-01	1130	970.4	1166.4	970.4
2024-11-01	1130	970.4	1166.4	970.4
2024-10-01	1130	970.4	1166.4	970.4
2024-09-01	1130	970.4	1166.4	970.4
2024-08-01	1130	970.4	1166.4	970.4
2024-07-01	1130	970.4	1166.4	970.4
2024-09-01	1130	970.4	1166.4	970.4
2024-05-01	1130	970.4	1166.4	970.4
2024-04-01	1130	970.4	1166.4	970.4
2024-03-01	1130	970.4	1166.4	970.4
2024-02-01	1130	970.4	1166.4	970.4
2024-01-01	1130	970.4	1166.4	970.4
2023-12-01	1130	970.4	1166.4	970.4

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	Mpumalanga Finaal 2022 (O19)	2022-08-22	2022-08-22	Rapid	Gert Sibande (MGS)	5	5	5	Yes	Analysis
2	Gert Sibande Laerskole Finaal 2019 (O13)	2019-08-02	2019-08-02	Rapid	Gert Sibande (MGS)	5	5	2.5	Yes	Analysis
3	2019 Super 12 Laerskole (Seniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	3	Yes	Analysis
4	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	2.5	Yes	Analysis
5	Gert Sibande Primary School Trials 2018 (U11 Boys)	2018-05-19	2018-05-19	Rapid	Gert Sibande (MGS)	5	5	5	Yes	Analysis

#	Games	Start				End
1	8	Tournament Gert Sibande Laerskole Finaal 2019				Tournament Mpumalanga Finaal 2022
		date 2019-08-02	rnd 3	type Rapid	result 1	date 2022-08-22	rnd 5	type Rapid	result 1
		Opponent Skhosana, L (Lwazi)				Opponent Mukucha, A (Allen)
2	5	Tournament Gert Sibande Primary School Trials 2018				Tournament Gert Sibande Primary School Trials 2018
		date 2018-05-19	rnd 1	type Rapid	result 1	date 2018-05-19	rnd 5	type Rapid	result 1
		Opponent Nkosi, S (Siyabonga)				Opponent Victor, X (Xander)
3	2	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 2	type Rapid	result 1	date 2019-05-04	rnd 3	type Rapid	result 1
		Opponent Bezuidenhout, A (Anru)				Opponent Schultz, R (Ryno)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament Gert Sibande Laerskole Finaal 2019				Tournament Mpumalanga Finaal 2022
		date 2019-08-02	rnd 3	type Rapid	result 1	date 2022-08-22	rnd 5	type Rapid	result 1
		Opponent Skhosana, L (Lwazi)				Opponent Mukucha, A (Allen)
2	5	Tournament Gert Sibande Primary School Trials 2018				Tournament Gert Sibande Primary School Trials 2018
		date 2018-05-19	rnd 1	type Rapid	result 1	date 2018-05-19	rnd 5	type Rapid	result 1
		Opponent Nkosi, S (Siyabonga)				Opponent Victor, X (Xander)
3	2	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 2	type Rapid	result 1	date 2019-05-04	rnd 3	type Rapid	result 1
		Opponent Bezuidenhout, A (Anru)				Opponent Schultz, R (Ryno)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Mpumalanga Finaal 2022				Tournament Mpumalanga Finaal 2022
		date 2022-08-22	rnd 1	type Rapid	result 1	date 2022-08-22	rnd 5	type Rapid	result 1
		Opponent Ledimo, B (Bontsi)				Opponent Mukucha, A (Allen)
2	5	Tournament Gert Sibande Primary School Trials 2018				Tournament Gert Sibande Primary School Trials 2018
		date 2018-05-19	rnd 1	type Rapid	result 1	date 2018-05-19	rnd 5	type Rapid	result 1
		Opponent Nkosi, S (Siyabonga)				Opponent Victor, X (Xander)
3	2	Tournament Gert Sibande Laerskole Finaal 2019				Tournament Gert Sibande Laerskole Finaal 2019
		date 2019-08-02	rnd 3	type Rapid	result 1	date 2019-08-02	rnd 4	type Rapid	result 1
		Opponent Skhosana, L (Lwazi)				Opponent Masuku, L (Lunga)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Mpumalanga Finaal 2022				Tournament Mpumalanga Finaal 2022
		date 2022-08-22	rnd 1	type Rapid	result 1	date 2022-08-22	rnd 5	type Rapid	result 1
		Opponent Ledimo, B (Bontsi)				Opponent Mukucha, A (Allen)
2	5	Tournament Gert Sibande Primary School Trials 2018				Tournament Gert Sibande Primary School Trials 2018
		date 2018-05-19	rnd 1	type Rapid	result 1	date 2018-05-19	rnd 5	type Rapid	result 1
		Opponent Nkosi, S (Siyabonga)				Opponent Victor, X (Xander)
3	2	Tournament Gert Sibande Laerskole Finaal 2019				Tournament Gert Sibande Laerskole Finaal 2019
		date 2019-08-02	rnd 3	type Rapid	result 1	date 2019-08-02	rnd 4	type Rapid	result 1
		Opponent Skhosana, L (Lwazi)				Opponent Masuku, L (Lunga)

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	Thwala ,T (Tokozane)	1	1	425	0	0	0	1	1	425	0	0	0
1	Thwala ,T (Tokozane)	1	1140.8	1565.8	0	0	0	1	1200	1565.8	0	0	0
2	Curlewis ,R (Ruart)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Curlewis ,R (Ruart)	1	540.8	115.8	0	0	0	1	567.6	115.8	0	0	0
3	Zungu ,PS (Phokhuhle Syble)	1	1	425	0	0	0	1	1	425	0	0	0
3	Zungu ,PS (Phokhuhle Syble)	1	1198.2	1623.2	0	0	0	1	1218.4	1623.2	0	0	0
4	Erasmus ,A (Amelia)	1	1	425	0	0	0	1	1	425	0	0	0
4	Erasmus ,A (Amelia)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
5	Nkosi ,S (Siyabonga)	1	1	425	0	0	0	1	1	425	0	0	0
5	Nkosi ,S (Siyabonga)	1	1216.9	1641.9	0	0	0	1	1200	1641.9	0	0	0
6	Schultz ,R (Ryno)	1	1	425	0	0	0	1	1	425	0	0	0
6	Schultz ,R (Ryno)	1	516.6	941.6	0	0	0	1	510.4	941.6	0	0	0
7	Masilela ,B (Bonginkosi)	1	1	425	0	0	0	1	1	425	0	0	0
7	Masilela ,B (Bonginkosi)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Masuku ,L (Lunga)	1	1	425	0	0	0	1	1	425	0	0	0
8	Masuku ,L (Lunga)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Mabena ,S (Sicebile)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Mabena ,S (Sicebile)	1	1198.8	773.8	0	0	0	1	1200	773.8	0	0	0
10	Mukucha ,A (Allen)	1	1	425	0	0	0	1	1	425	0	0	0
10	Mukucha ,A (Allen)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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Personal

Van Schalkwyk, JM (Jan-Maarten)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms