Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Rensburg, J (Janru)

Chess SA id

1150139823

FIDE id

Date of birth

2015-01-19 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-21

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1254.1

Item	Main	Standard	Rapid	Blitz
Rating	1381.3	1350.3	1376.6	1200
Raw rating	1380.7	1346.8	1376.6	1200
Weighted rating	1310.3	1275.3	1327.6	1200
Weighted performance	1381.3	1350.3	0	0
Floor	908	871.3	876.6	700
K-factor	32	36	36	36
Min/Max rating change allowed	128.2	134.5	128.9	165.8
Highest rating	1435.5 2025-09-01	1386.8 2025-09-01	1521.4 2024-03-01	1200 2018-10-01
Highest raw rating	1408 2025-09-01	1371.3 2025-09-01	1376.6 2025-09-01	1200 2024-02-01
Highest weighted rating	1310.3 2025-09-30	1275.3 2025-09-30	1321.3 2025-09-01	1200 2018-10-01
Highest weighted performance	1435.5 2025-09-01	1386.8 2025-09-01	1521.4 2024-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	-0.5	0	0
New rating	1380.8	1349.8	1376.6	1200
Analysis
Rating	1381.3	1350.3	1376.6	1200
Raw rating	1380.7	1346.8	1376.6	1200
Weighted rating	1310.3	1275.3	1327.6
Weighted performance	1381.3	1350.3	0
K-factor	32	36	36	36
Floor	908	871.3	876.6	700
Max/Min rating change allowed	128.2	134.5	128.9	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	1380.7	1346.8	1376.6	1200
New weighted rating	1318	1283.1	1333.4	1200
New weighted performance	1380.8	1349.8	0	0
Temp new rating	1380.8	1349.8	1376.6	1200
Temp new rating +/-	-0.5	-0.5	0	0
Final new rating +/-	-0.5	-0.5	0	0
New rating	1380.8	1349.8	1376.6	1200
New K-factor	32	36	36	36
New floor	908	871.3	876.6	700

Item	Main	Standard	Rapid
	0	0	0
	46	30	16
	29	19	10
	0	0	0
	9	9	0
	0	0	0
History	84	58	26

Games since
	Main 75	Standard 49		Rapid 26		Blitz 0
Gender	Male
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2367		821		125
Male	1934		669		101
U12	321		111		18
U12 Male	235		79		14
Standard
	RSA		Province		Region
Overall	2561		931		126
Male	2067		753		104
U12	357		132		22
U12 Male	262		93		17
Rapid
	RSA		Province		Region
Overall	609		105		32
Male	519		83		19
U12	91		11		6
U12 Male	70		7		4
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	46	30.5	66.3	138.6	1251.5	1390.1
Standard	30	18.5	61.67	99.2	1272.3	1371.4
Rapid	16	12	75	212.5	1212.6	1425.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	84	55	65.48	131.5	1230.6	1362.2
Standard	58	34.5	59.48	80.6	1240.3	1320.9
Rapid	26	20.5	78.85	245.2	1209	1454.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1380.7	1346.8	1376.6	1200
2025-09-01	1408	1371.3	1376.6	1200
2025-08-01	1307	1297.2	1319.2	1200
2025-07-01	1307	1297.2	1319.2	1200
2025-06-01	1323	1314.8	1319.2	1200
2025-05-01	1325	1292	1341.2	1200
2025-04-01	1318.8	1275	1341.2	1200
2025-03-01	1318.8	1275	1341.2	1200
2025-02-01	1312.9	1258	1341.2	1200
2025-01-01	1291.3	1258	1317.3	1200
2024-12-01	1291.3	1258	1317.3	1200
2024-11-01	1291.3	1258	1317.3	1200
2024-10-01	1268.6	1219.1	1317.3	1200
2024-09-01	1276.7	1219.8	1317.3	1200
2024-08-01	1276.7	1219.8	1317.3	1200
2024-07-01	1276.7	1219.8	1317.3	1200
2024-06-01	1266.7	1207.2	1317.3	1200
2024-08-01	1266.7	1207.2	1317.3	1200
2024-04-01	1272.1	1198.9	1317.3	1200
2024-03-01	1232.6	1198.9	1255.4	1200
2024-02-01	1200	1198.9	1200	1200
2024-01-01	1200	1198.9	1200	1200
2023-12-01	1200	1198.9	1200	1200
2023-11-01	1200	1198.9	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	Ekurhuleni Trial 4 2025 (F)	2025-09-21	2025-09-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	5	Yes	Analysis
3	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	7	6	Yes	Analysis
4	Ekurhuleni Trial 2 2025 (F)	2025-06-21	2025-06-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	RMS Rapid Chess Open 31 May 2025 (U11)	2025-05-31	2025-05-31	Rapid	Sedibeng (GSV)	6	4	2	Yes	Analysis
6	Ekurhuleni Trials 2025 (F)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
7	Benoni Primary School Cluster 12 April 2025 (U11 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
8	Ekurhuleni/Springs Open 025 (U12)	2025-02-22	2025-02-22	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
9	LS Northmead Trials 2025 (U11)	2025-01-25	2025-01-25	Rapid	Ekurhuleni (GE)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni Trial 4 2025 (F)	2025-09-21	2025-09-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	5	Yes	Analysis
3	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	7	6	Yes	Analysis
4	Ekurhuleni Trial 2 2025 (F)	2025-06-21	2025-06-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	RMS Rapid Chess Open 31 May 2025 (U11)	2025-05-31	2025-05-31	Rapid	Sedibeng (GSV)	6	4	2	Yes	Analysis
6	Ekurhuleni Trials 2025 (F)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
7	Benoni Primary School Cluster 12 April 2025 (U11 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
8	Ekurhuleni/Springs Open 025 (U12)	2025-02-22	2025-02-22	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
9	LS Northmead Trials 2025 (U11)	2025-01-25	2025-01-25	Rapid	Ekurhuleni (GE)	5	5	4	Yes	Analysis
10	Gauteng Top Schools 2024 (U9 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
11	Ekurhuleni North Schools Finals - Teams 2024 (U9 Open)	2024-08-03	2024-08-03	Standard	Ekurhuleni (GE)	5	4	2	Yes	Analysis
12	Ekurhuleni North Primary Schools District Individual Finals 2024 (U9 Boys)	2024-05-11	2024-05-11	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
13	Ekurhuleni Open 2024 (C)	2024-04-06	2024-04-06	Standard	Ekurhuleni (GE)	5	1	0	Yes	Analysis
14	Ekurhuleni Open 2024 (E)	2024-04-06	2024-04-06	Standard	Ekurhuleni (GE)	5	4	3	Yes	Analysis
15	Benoni Primary School Cluster Individuals 2024 (U9 Boys)	2024-03-09	2024-03-09	Rapid	Ekurhuleni (GE)	5	5	4.5	Yes	Analysis
16	Laerskool Northmead Proewe 2024 (U9)	2024-02-10	2024-02-10	Rapid	Ekurhuleni (GE)	5	5	4	Yes	Analysis
17	Ekurhuleni-North Schools Finals Indiv 2022 (U9 Boys)	2022-05-13	2022-05-13	Standard	Ekurhuleni (GE)	5	4	1.5	Yes	Analysis
18	ACB Premier 2022 (Primary School)	2022-03-19	2022-03-19	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament Laerskool Northmead Proewe 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-02-10	rnd 4	type Rapid	result 1	date 2024-03-09	rnd 5	type Rapid	result 1
		Opponent Smit, L (Liam)				Opponent Coetzee, O (Oliver)
2	6	Tournament Benoni Primary School Cluster Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-02	rnd 7	type Rapid	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Lwate, M (Motheo)				Opponent Lamprecht, B (Benjamin)
3	5	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Stroebel, L (Lian)				Opponent Vuma, N (Nathan)

#	Games	Start				End
1	5	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Witt, T (Tiara-Lee)				Opponent Lamprecht, B (Benjamin)
2	3	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Ekurhuleni Trials 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-05-24	rnd 1	type Standard	result 1
		Opponent Marais, N (Nathan)				Opponent Cronje, M (Marlene)
3	3	Tournament Ekurhuleni/Springs Open 025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-04-12	rnd 2	type Standard	result 1
		Opponent Duvenage, A (Alejandro)				Opponent Marais, I (Ivan)

#	Games	Start				End
1	9	Tournament Laerskool Northmead Proewe 2024				Tournament LS Northmead Trials 2025
		date 2024-02-10	rnd 4	type Rapid	result 1	date 2025-01-25	rnd 2	type Rapid	result 1
		Opponent Smit, L (Liam)				Opponent Marais, I (Ivan)
2	5	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Stroebel, L (Lian)				Opponent Vuma, N (Nathan)
3	4	Tournament LS Northmead Trials 2025				Tournament RMS Rapid Chess Open 31 May 2025
		date 2025-01-25	rnd 4	type Rapid	result 1	date 2025-05-31	rnd 2	type Rapid	result 1
		Opponent Botha, L (Louis)				Opponent Feldman, A (Alec Yacoub)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Benoni Primary School Cluster Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-02	rnd 7	type Rapid	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Lwate, M (Motheo)				Opponent Lamprecht, B (Benjamin)
2	5	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Stroebel, L (Lian)				Opponent Vuma, N (Nathan)
3	4	Tournament Laerskool Northmead Proewe 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-02-10	rnd 4	type Rapid	result 1	date 2024-03-09	rnd 2	type Rapid	result 1
		Opponent Smit, L (Liam)				Opponent Viljoen, C (Cj)

#	Games	Start				End
1	5	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Witt, T (Tiara-Lee)				Opponent Lamprecht, B (Benjamin)
2	3	Tournament Ekurhuleni/Springs Open 025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-04-12	rnd 2	type Standard	result 1
		Opponent Duvenage, A (Alejandro)				Opponent Marais, I (Ivan)
3	3	Tournament Ekurhuleni North Primary Schools District Individual Finals 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-05-11	rnd 5	type Standard	result 1	date 2024-08-03	rnd 2	type Standard	result 1
		Opponent Coetzee, O (Oliver)				Opponent Zulu, U (Unami)

#	Games	Start				End
1	5	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Stroebel, L (Lian)				Opponent Vuma, N (Nathan)
2	4	Tournament LS Northmead Trials 2025				Tournament RMS Rapid Chess Open 31 May 2025
		date 2025-01-25	rnd 4	type Rapid	result 1	date 2025-05-31	rnd 2	type Rapid	result 1
		Opponent Botha, L (Louis)				Opponent Feldman, A (Alec Yacoub)
3	4	Tournament Benoni Primary School Cluster Individuals 2024				Tournament LS Northmead Trials 2025
		date 2024-03-09	rnd 4	type Rapid	result 1	date 2025-01-25	rnd 2	type Rapid	result 1
		Opponent Cronje, X (Xavier)				Opponent Marais, I (Ivan)

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	Mistry ,K (Kabir)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Mistry ,K (Kabir)	3	1515.2	1090.2	3	1509	1090.2	0	0	0	0	0	0
2	Thoobe ,M (Moshala)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Thoobe ,M (Moshala)	2	1211.6	786.6	2	1211.2	786.6	0	0	0	0	0	0
3	Myburgh ,E (Eben)	2	2	425	2	2	425	0	0	0	0	0	0
3	Myburgh ,E (Eben)	2	1199.9	1624.9	2	1199.9	1624.9	0	0	0	0	0	0
4	Khumalo ,ME (Musawenkosi Ethan)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Khumalo ,ME (Musawenkosi Ethan)	2	1461.3	1036.3	2	1500.3	1036.3	0	0	0	0	0	0
5	Mogotlane ,L (Lethabo)	2	2	425	2	2	425	0	0	0	0	0	0
5	Mogotlane ,L (Lethabo)	2	1219.9	1644.9	2	1217.6	1644.9	0	0	0	0	0	0
6	Coetzee ,O (Oliver)	2	2	425	1	1	425	1	1	425	0	0	0
6	Coetzee ,O (Oliver)	2	1237.5	1662.5	1	1200	1662.5	1	1258.4	1662.5	0	0	0
7	Marais ,I (Ivan)	2	2	425	1	1	425	1	1	425	0	0	0
7	Marais ,I (Ivan)	2	1193.4	1618.4	1	1200	1618.4	1	1184.8	1618.4	0	0	0
8	Mashita ,B (Bohlale)	2	2	425	1	1	425	1	1	425	0	0	0
8	Mashita ,B (Bohlale)	2	1284.6	1709.6	1	1306.3	1709.6	1	1196.4	1709.6	0	0	0
9	Cronje ,X (Xavier)	2	2	425	0	0	0	2	2	425	0	0	0
9	Cronje ,X (Xavier)	2	1205.2	1630.2	0	0	0	2	1209.2	1630.2	0	0	0
10	Rosner ,V (Valkyrie)	2	1	0	0	0	0	2	1	0	0	0	0
10	Rosner ,V (Valkyrie)	2	1200	1200	0	0	0	2	1200	1200	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Van Rensburg, J (Janru)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms