Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Rooyen, J (Janco)

Chess SA id

1120138430

FIDE id

Date of birth

2012-11-08 (U14)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1160.5	1139.6	1220.8	1200
Raw rating	1160.5	1139.6	1220.8	1200
Weighted rating	1160.5	1139.6	1220.8	1200
Weighted performance	0	0	0	0
Floor	700	700	720.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	175.4	180.7	161	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1281.1 2023-03-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1220.8 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1220.8 2025-02-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1281.1 2023-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1160.5	1139.6	1220.8	1200
Analysis
Rating	1160.5	1139.6	1220.8	1200
Raw rating	1160.5	1139.6	1220.8	1200
Weighted rating	1160.5	1139.6	1220.8
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	720.8	700
Max/Min rating change allowed	175.4	180.7	161	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	1160.5	1139.6	1220.8	1200
New weighted rating	1160.5	1139.6	1220.8	1200
New weighted performance	0	0	0	0
Temp new rating	1160.5	1139.6	1220.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1160.5	1139.6	1220.8	1200
New K-factor	36	36	36	36
New floor	700	700	720.8	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	10	5	5
	4	4	0
	0	0	0
History	14	9	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	14	6	42.86	-60.7	1177.3	1116.6
Standard	9	3	33.33	-141.7	1178.9	1037.2
Rapid	5	3	60	85	1174.6	1259.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1160.5	1139.6	1220.8	1200
2025-09-01	1160.5	1139.6	1220.8	1200
2025-08-01	1160.5	1139.6	1220.8	1200
2025-07-01	1160.5	1139.6	1220.8	1200
2025-06-01	1160.5	1139.6	1220.8	1200
2025-05-01	1160.5	1139.6	1220.8	1200
2025-04-01	1160.5	1139.6	1220.8	1200
2025-03-01	1160.5	1139.6	1220.8	1200
2025-02-01	1160.5	1139.6	1220.8	1200
2025-01-01	1160.5	1139.6	1220.8	1200
2024-12-01	1160.5	1139.6	1220.8	1200
2024-11-01	1160.5	1139.6	1220.8	1200
2024-10-01	1160.5	1139.6	1220.8	1200
2024-09-01	1160.5	1139.6	1220.8	1200
2024-08-01	1160.5	1139.6	1220.8	1200
2024-07-01	1160.5	1139.6	1220.8	1200
2024-06-01	1160.5	1139.6	1220.8	1200
2024-08-01	1160.5	1139.6	1220.8	1200
2024-04-01	1160.5	1139.6	1220.8	1200
2024-03-01	1160.5	1139.6	1220.8	1200
2024-02-01	1160.5	1139.6	1220.8	1200
2024-01-01	1160.5	1139.6	1220.8	1200
2023-12-01	1160.5	1139.6	1220.8	1200
2023-11-01	1160.5	1139.6	1220.8	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	Overberg Schools Swellendam Zone Trails 2023 (U13)	2023-02-16	2023-03-02	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
2	Overberg School Chess Closed Tournament 2023 (U11 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
3	Overberg Primary Schools Closed 2022 (U11 Boys)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	4	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg Schools Swellendam Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-02-16	rnd 3	type Rapid	result 1
		Opponent Kellerman, D (Dian)				Opponent Arendse, J (Jenivah)
2	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 3	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Joemat, M (Mason)				Opponent Schraader, R (Ruben)
3	1	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-03-12	rnd 3	type Standard	result 1
		Opponent Castleman, J (Josef)				Opponent Castleman, J (Josef)

#	Games	Start				End
1	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 3	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Joemat, M (Mason)				Opponent Schraader, R (Ruben)
2	1	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-03-12	rnd 3	type Standard	result 1
		Opponent Castleman, J (Josef)				Opponent Castleman, J (Josef)

#	Games	Start				End
1	3	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg Schools Swellendam Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-02-16	rnd 3	type Rapid	result 1
		Opponent Kellerman, D (Dian)				Opponent Arendse, J (Jenivah)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg Schools Swellendam Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-02-16	rnd 3	type Rapid	result 1
		Opponent Kellerman, D (Dian)				Opponent Arendse, J (Jenivah)
2	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 3	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Joemat, M (Mason)				Opponent Schraader, R (Ruben)
3	1	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-03-12	rnd 3	type Standard	result 1
		Opponent Castleman, J (Josef)				Opponent Castleman, J (Josef)

#	Games	Start				End
1	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 3	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Joemat, M (Mason)				Opponent Schraader, R (Ruben)
2	1	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 3	type Standard	result 1	date 2022-03-12	rnd 3	type Standard	result 1
		Opponent Castleman, J (Josef)				Opponent Castleman, J (Josef)

#	Games	Start				End
1	3	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg Schools Swellendam Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-02-16	rnd 3	type Rapid	result 1
		Opponent Kellerman, D (Dian)				Opponent Arendse, J (Jenivah)

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	Horne ,A (Armandt)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Horne ,A (Armandt)	2	1184	759	2	1176.8	759	0	0	0	0	0	0
2	Theron ,J (Joshua)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Theron ,J (Joshua)	1	1180.8	755.8	1	1200	755.8	0	0	0	0	0	0
3	Els ,D (Dante)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Els ,D (Dante)	1	1052.5	627.5	1	1029.6	627.5	0	0	0	0	0	0
4	Hartnick ,D (Dewin)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Hartnick ,D (Dewin)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Foye ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Foye ,L (Logan)	1	1208.3	783.3	1	1208.4	783.3	0	0	0	0	0	0
6	Joemat ,M (Mason)	1	1	425	1	1	425	0	0	0	0	0	0
6	Joemat ,M (Mason)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Schraader ,R (Ruben)	1	1	425	1	1	425	0	0	0	0	0	0
7	Schraader ,R (Ruben)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Castleman ,J (Josef)	1	1	425	1	1	425	0	0	0	0	0	0
8	Castleman ,J (Josef)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Arendse ,J (Jenivah)	1	1	425	0	0	0	1	1	425	0	0	0
9	Arendse ,J (Jenivah)	1	1122	1547	0	0	0	1	1230.8	1547	0	0	0
10	Kellerman ,D (Dian)	1	1	425	0	0	0	1	1	425	0	0	0
10	Kellerman ,D (Dian)	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

Tournaments

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PLAYER PAGE

Personal

Van Rooyen, J (Janco)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms