Chess South Africa Ratings Database

PLAYER PAGE

Personal

Janse Van Rensburg, J (John)

Chess SA id

1120325488

FIDE id

Date of birth

2012-09-14 (U14)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1250.5	1260.8	1200	1200
Raw rating	1250.5	1260.8	1200	1200
Weighted rating	1207.9	1209.5	1200	1200
Weighted performance	0	0	0	0
Floor	750.5	760.8	700	700
K-factor	36	36	40	40
Min/Max rating change allowed	154.3	152.1	165.8	165.8
Highest rating	1250.5 2025-09-01	1260.8 2025-09-01	1199.9 2025-08-20	1199.9 2025-08-20
Highest raw rating	1250.5 2025-09-01	1260.8 2025-09-01	1199.9 2025-08-20	1199.9 2025-08-20
Highest weighted rating	1204 2025-09-01	1204.9 2025-09-01	1199.9 2025-08-20	1199.9 2025-08-20
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1250.5	1260.8	1200	1200
Analysis
Rating	1250.5	1260.8	1200	1200
Raw rating	1250.5	1260.8	1200	1200
Weighted rating	1207.9	1209.5	1200
Weighted performance	0	0	0
K-factor	36	36	40	40
Floor	750.5	760.8	700	700
Max/Min rating change allowed	154.3	152.1	165.8	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	1250.5	1260.8	1200	1200
New weighted rating	1211.6	1214	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1250.5	1260.8	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1250.5	1260.8	1200	1200
New K-factor	36	36	36	36
New floor	750.5	760.8	700	700

Item	Main	Standard
	0	0
	8	8
	0	0
	0	0
	0	0
	0	0
History	8	8

Games since
	Main 8	Standard 8		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Eden (WEG)
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	8	5	62.5	106.2	1263.3	1369.6
Standard	8	5	62.5	106.2	1263.3	1369.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	8	5	62.5	106.2	1263.3	1369.6
Standard	8	5	62.5	106.2	1263.3	1369.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1250.5	1260.8	1200	1200
2025-09-01	1250.5	1260.8	1200	1200
2025-08-01	1200	1200	1200	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eden Top Schools 2025 (U13)	2025-08-16	2025-08-16	Standard	Eden (WEG)	5	4	2	Yes	Analysis
2	Mossel Bay Top Schools 2025 (U13 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	5	4	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eden Top Schools 2025 (U13)	2025-08-16	2025-08-16	Standard	Eden (WEG)	5	4	2	Yes	Analysis
2	Mossel Bay Top Schools 2025 (U13 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	5	4	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Mossel Bay Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Leshawa, E (Emzeo)				Opponent Huddy, P (Paige)
2	1	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Jantjies, E (Enzaylin)				Opponent Jantjies, E (Enzaylin)
3	1	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Cameron, N (Noah)				Opponent Cameron, N (Noah)

#	Games	Start				End
1	3	Tournament Mossel Bay Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Leshawa, E (Emzeo)				Opponent Huddy, P (Paige)
2	1	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Jantjies, E (Enzaylin)				Opponent Jantjies, E (Enzaylin)
3	1	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Cameron, N (Noah)				Opponent Cameron, N (Noah)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Mossel Bay Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Leshawa, E (Emzeo)				Opponent Huddy, P (Paige)
2	1	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Jantjies, E (Enzaylin)				Opponent Jantjies, E (Enzaylin)
3	1	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Cameron, N (Noah)				Opponent Cameron, N (Noah)

#	Games	Start				End
1	3	Tournament Mossel Bay Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-16	rnd 1	type Standard	result 1
		Opponent Leshawa, E (Emzeo)				Opponent Huddy, P (Paige)
2	1	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 4	type Standard	result 1
		Opponent Jantjies, E (Enzaylin)				Opponent Jantjies, E (Enzaylin)
3	1	Tournament Mossel Bay Top Schools 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 2	type Standard	result 1
		Opponent Cameron, N (Noah)				Opponent Cameron, N (Noah)

No games found.

#	Games	Start				End

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	Plaatjies ,J (Joy)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Plaatjies ,J (Joy)	1	1077.2	652.2	1	1054.8	652.2	0	0	0	0	0	0
2	Francis ,A (Aaron)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Francis ,A (Aaron)	1	1719.1	1294.1	1	1728.9	1294.1	0	0	0	0	0	0
3	Huddy ,P (Paige)	1	1	425	1	1	425	0	0	0	0	0	0
3	Huddy ,P (Paige)	1	1150.4	1575.4	1	1142.3	1575.4	0	0	0	0	0	0
4	Tshefu ,S (Sibsiso)	1	1	425	1	1	425	0	0	0	0	0	0
4	Tshefu ,S (Sibsiso)	1	1225.2	1650.2	1	1234.3	1650.2	0	0	0	0	0	0
5	Jantjies ,E (Enzaylin)	1	1	425	1	1	425	0	0	0	0	0	0
5	Jantjies ,E (Enzaylin)	1	1199.3	1624.3	1	1199.1	1624.3	0	0	0	0	0	0
6	Leshawa ,E (Emzeo)	1	1	425	1	1	425	0	0	0	0	0	0
6	Leshawa ,E (Emzeo)	1	1229.1	1654.1	1	1212.6	1654.1	0	0	0	0	0	0
7	Kachingwe ,R (Raymond)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Kachingwe ,R (Raymond)	1	1247.7	822.7	1	1271	822.7	0	0	0	0	0	0
8	Cameron ,N (Noah)	1	1	425	1	1	425	0	0	0	0	0	0
8	Cameron ,N (Noah)	1	1259	1684	1	1272	1684	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Janse Van Rensburg, 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