Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Rooyen, J (John)

Chess SA id

1090153483

FIDE id

Date of birth

2009-09-10 (U18)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-03-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1181.9	1200	1155.5	1200
Raw rating	1181.9	1200	1155.5	1200
Weighted rating	1181.1	1200	1154.3	1200
Weighted performance	850.8	0	885.8	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.1	165.8	176.7	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1208.5 2023-02-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2024-02-01	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2024-02-01	1208.5 2023-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1181.9	1200	1155.5	1200
Analysis
Rating	1181.9	1200	1155.5	1200
Raw rating	1181.9	1200	1155.5	1200
Weighted rating	1181.1	1200	1154.3
Weighted performance	850.8	0	885.8
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	170.1	165.8	176.7	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	1181.9	1200	1155.5	1200
New weighted rating	1181.2	1200	1154.5	1200
New weighted performance	844.5	0	879.2	0
Temp new rating	1181.9	1200	1155.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1181.9	1200	1155.5	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Rapid
	0	0
	0	0
	15	15
	13	13
	0	0
	0	0
History	28	28

Games since
	Main 15	Standard 0		Rapid 15		Blitz 0
Gender	Male
Age group	U18
Region	Mangaung (FMB)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	28	13	46.43	-30.4	1176.9	1146.6
Standard	0	0	0	0	0	0
Rapid	28	13	46.43	-30.4	1176.9	1146.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1181.9	1200	1155.5	1200
2025-09-30	1181.9	1200	1155.5	1200
2025-09-01	1181.9	1200	1155.5	1200
2025-08-01	1181.9	1200	1155.5	1200
2025-07-01	1181.9	1200	1155.5	1200
2025-06-01	1181.9	1200	1155.5	1200
2025-05-01	1181.9	1200	1155.5	1200
2025-04-01	1181.9	1200	1155.5	1200
2025-03-01	1181.9	1200	1155.5	1200
2025-02-01	1181.9	1200	1155.5	1200
2025-01-01	1179.2	1200	1152.5	1200
2024-12-01	1179.2	1200	1152.5	1200
2024-11-01	1179.2	1200	1152.5	1200
2024-10-01	1179.2	1200	1152.5	1200
2024-09-01	1179.2	1200	1152.5	1200
2024-08-01	1179.2	1200	1152.5	1200
2024-07-01	1179.2	1200	1152.5	1200
2024-09-01	1179.2	1200	1152.5	1200
2024-05-01	1179.2	1200	1152.5	1200
2024-04-01	1179.2	1200	1152.5	1200
2024-03-01	1183.3	1200	1159.3	1200
2024-02-01	1175.7	1200	1128	1200
2024-01-01	1186.8	1200	1155.7	1200
2023-12-01	1186.8	1200	1155.7	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	Bloemfontein Highschool League 2024 (U15B-U19B)	2024-03-08	2024-03-08	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
2	Bloemfontein High School League 16 February 2024 (U15B+U17B)	2024-02-16	2024-02-16	Rapid	Mangaung (FMB)	5	5	3	Yes	Analysis
3	Bloemfontein High School League Tournament 26 January 2024 (U15B+U17B)	2024-01-26	2024-01-26	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis
4	Bloemfontein HS League 13 October 2023 (U17+U19)	2023-10-13	2023-10-13	Rapid	Mangaung (FMB)	5	0	0	No	Analysis
5	Bloemfontein HS League 27 October 2023 (U13-U17)	2023-10-27	2023-10-27	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
6	Bloemfontein League 25 August 2023 (U17+U19B)	2023-08-25	2023-08-25	Rapid	Mangaung (FMB)	5	4	2	Yes	Analysis
7	Bloemfontein Highschool League 24 Feb 2023 (U13+U15)	2023-02-24	2023-02-24	Rapid	Mangaung (FMB)	5	4	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament Bloemfontein High School League 16 February 2024				Tournament Bloemfontein Highschool League 2024
		date 2024-02-16	rnd 4	type Rapid	result 1	date 2024-03-08	rnd 2	type Rapid	result 1
		Opponent Nhlapo, N (Nkanyiso)				Opponent Joubert, A (Amorey)
2	2	Tournament Bloemfontein High School League Tournament 26 January 2024				Tournament Bloemfontein High School League Tournament 26 January 2024
		date 2024-01-26	rnd 1	type Rapid	result 1	date 2024-01-26	rnd 2	type Rapid	result 1
		Opponent Matiki, T (Thandeka)				Opponent Tsime, T (Thulaganyo)
3	2	Tournament Bloemfontein League 25 August 2023				Tournament Bloemfontein League 25 August 2023
		date 2023-08-25	rnd 3	type Rapid	result 1	date 2023-08-25	rnd 4	type Rapid	result 1
		Opponent Madyegasva, M (Mauya)				Opponent Haasbroek, N (Niel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Bloemfontein High School League 16 February 2024				Tournament Bloemfontein Highschool League 2024
		date 2024-02-16	rnd 4	type Rapid	result 1	date 2024-03-08	rnd 2	type Rapid	result 1
		Opponent Nhlapo, N (Nkanyiso)				Opponent Joubert, A (Amorey)
2	2	Tournament Bloemfontein High School League Tournament 26 January 2024				Tournament Bloemfontein High School League Tournament 26 January 2024
		date 2024-01-26	rnd 1	type Rapid	result 1	date 2024-01-26	rnd 2	type Rapid	result 1
		Opponent Matiki, T (Thandeka)				Opponent Tsime, T (Thulaganyo)
3	2	Tournament Bloemfontein League 25 August 2023				Tournament Bloemfontein League 25 August 2023
		date 2023-08-25	rnd 3	type Rapid	result 1	date 2023-08-25	rnd 4	type Rapid	result 1
		Opponent Madyegasva, M (Mauya)				Opponent Haasbroek, N (Niel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Bloemfontein High School League 16 February 2024				Tournament Bloemfontein Highschool League 2024
		date 2024-02-16	rnd 4	type Rapid	result 1	date 2024-03-08	rnd 2	type Rapid	result 1
		Opponent Nhlapo, N (Nkanyiso)				Opponent Joubert, A (Amorey)
2	2	Tournament Bloemfontein High School League Tournament 26 January 2024				Tournament Bloemfontein High School League Tournament 26 January 2024
		date 2024-01-26	rnd 1	type Rapid	result 1	date 2024-01-26	rnd 2	type Rapid	result 1
		Opponent Matiki, T (Thandeka)				Opponent Tsime, T (Thulaganyo)
3	2	Tournament Bloemfontein League 25 August 2023				Tournament Bloemfontein League 25 August 2023
		date 2023-08-25	rnd 3	type Rapid	result 1	date 2023-08-25	rnd 4	type Rapid	result 1
		Opponent Madyegasva, M (Mauya)				Opponent Haasbroek, N (Niel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Bloemfontein High School League 16 February 2024				Tournament Bloemfontein Highschool League 2024
		date 2024-02-16	rnd 4	type Rapid	result 1	date 2024-03-08	rnd 2	type Rapid	result 1
		Opponent Nhlapo, N (Nkanyiso)				Opponent Joubert, A (Amorey)
2	2	Tournament Bloemfontein High School League Tournament 26 January 2024				Tournament Bloemfontein High School League Tournament 26 January 2024
		date 2024-01-26	rnd 1	type Rapid	result 1	date 2024-01-26	rnd 2	type Rapid	result 1
		Opponent Matiki, T (Thandeka)				Opponent Tsime, T (Thulaganyo)
3	2	Tournament Bloemfontein League 25 August 2023				Tournament Bloemfontein League 25 August 2023
		date 2023-08-25	rnd 3	type Rapid	result 1	date 2023-08-25	rnd 4	type Rapid	result 1
		Opponent Madyegasva, M (Mauya)				Opponent Haasbroek, N (Niel)

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	Leteno ,O (Omphile)	2	1	0	0	0	0	2	1	0	0	0	0
1	Leteno ,O (Omphile)	2	1210.1	1210.1	0	0	0	2	1216.9	1210.1	0	0	0
2	Mokoena ,T (Tshepo)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Mokoena ,T (Tshepo)	2	1275.1	850.1	0	0	0	2	1335.6	850.1	0	0	0
3	Benson ,A (Ajay)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Benson ,A (Ajay)	1	1200	775	0	0	0	1	1200	775	0	0	0
4	Geyser ,H (Heinrich)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Geyser ,H (Heinrich)	1	1035.1	610.1	0	0	0	1	678.2	610.1	0	0	0
5	Tsime ,T (Thulaganyo)	1	1	425	0	0	0	1	1	425	0	0	0
5	Tsime ,T (Thulaganyo)	1	1136	1561	0	0	0	1	1047.7	1561	0	0	0
6	Els ,N (Niel)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Els ,N (Niel)	1	1190.4	765.4	0	0	0	1	1148.8	765.4	0	0	0
7	Stokes ,D (Daniel)	1	1	425	0	0	0	1	1	425	0	0	0
7	Stokes ,D (Daniel)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Lemphane ,O (Oratile)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Lemphane ,O (Oratile)	1	1345.1	920.1	0	0	0	1	1363.3	920.1	0	0	0
9	Van Zyl ,C (Christiaan)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Van Zyl ,C (Christiaan)	1	1222.4	797.4	0	0	0	1	1253.2	797.4	0	0	0
10	Madyegasva ,M (Mauya)	1	1	425	0	0	0	1	1	425	0	0	0
10	Madyegasva ,M (Mauya)	1	1165.2	1590.2	0	0	0	1	1097.2	1590.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Van Rooyen, J (John)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms