Chess South Africa Ratings Database

PLAYER PAGE

Personal

Janse Van Rensburg, I (Iwan)

Chess SA id

1120147732

FIDE id

Date of birth

2012-12-26 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1259.9

Item	Main	Standard	Rapid	Blitz
Rating	1249	1238.5	1197.2	1200
Raw rating	1249	1238.5	1197.2	1200
Weighted rating	1205.3	1195.7	1188.6	1200
Weighted performance	1161.7	1125.3	959.3	0
Floor	749	738.5	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	154.6	157	166.5	165.8
Highest rating	1313.8 2024-07-01	1303.5 2024-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1249 2025-09-01	1238.5 2025-09-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1216 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1313.8 2024-07-01	1303.5 2024-07-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1249	1238.5	1197.2	1200
Analysis
Rating	1249	1238.5	1197.2	1200
Raw rating	1249	1238.5	1197.2	1200
Weighted rating	1205.3	1195.7	1188.6
Weighted performance	1161.7	1125.3	959.3
K-factor	36	36	36	36
Floor	749	738.5	700	700
Max/Min rating change allowed	154.6	157	166.5	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	1249	1238.5	1197.2	1200
New weighted rating	1211	1200.3	1191.2	1200
New weighted performance	1154.4	1118.1	952.3	0
Temp new rating	1249	1238.5	1197.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1249	1238.5	1197.2	1200
New K-factor	36	36	36	36
New floor	749	738.5	700	700

Item	Main	Standard	Rapid
	0	0	0
	18	18	0
	22	6	16
	22	5	17
	5	0	5
	0	0	0
History	67	29	38

Games since
	Main 40	Standard 24		Rapid 16		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3726		1235		493
Male	2848		897		383
U14	717		234		96
U14 Male	509		154		68
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	18	9.5	52.78	23.6	1235.7	1259.3
Standard	18	9.5	52.78	23.6	1235.7	1259.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	67	27.5	41.04	-76.1	1226.4	1150.3
Standard	29	14.5	50	0	1221	1221
Rapid	38	13	34.21	-134.2	1230.6	1096.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1249	1238.5	1197.2	1200
2025-09-30	1249	1238.5	1197.2	1200
2025-09-01	1249	1238.5	1197.2	1200
2025-08-01	1215.4	1200	1197.2	1200
2025-07-01	1215.4	1200	1197.2	1200
2025-06-01	1201.2	1178.1	1197.2	1200
2025-05-01	1201.2	1178.1	1197.2	1200
2025-04-01	1201.2	1178.1	1197.2	1200
2025-03-01	1201.2	1178.1	1197.2	1200
2025-02-01	1216	1192.4	1197.2	1200
2025-01-01	1198.8	1192.4	1197.2	1200
2024-12-01	1198.8	1192.4	1197.2	1200
2024-11-01	1198.8	1192.4	1197.2	1200
2024-10-01	1198.8	1192.4	1197.2	1200
2024-09-01	1198.8	1192.4	1197.2	1200
2024-08-01	1198.8	1192.4	1197.2	1200
2024-07-01	1165.3	1153.2	1197.2	1200
2024-09-01	1165.3	1153.2	1197.2	1200
2024-05-01	1115.4	1153.2	1099.2	1200
2024-04-01	1098.3	1153.2	1065.2	1200
2024-03-01	1098.3	1153.2	1065.2	1200
2024-02-01	1078.4	1141.6	1065.2	1200
2024-01-01	1078.4	1141.6	1065.2	1200
2023-12-01	1078.4	1141.6	1065.2	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	CT Metro District East Top Schools Chess 2025 (U13)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	7	6	4	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U14)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
3	CT Metro District East Schools Chess Individuals Trials 2025 (U13 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	CT Metro District East Top Schools Chess 2025 (U13)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	7	6	4	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U14)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
3	CT Metro District East Schools Chess Individuals Trials 2025 (U13 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
4	CT Metro District East Top Schools Chess 2024 (U13 Mixed)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	5	2	2	Yes	Analysis
5	Cape Town Junior League Finals 2024 (U13 Open B)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	6	5	2.5	Yes	Analysis
6	Cape Town Junior League - Qualifier 2 2024 (U13)	2024-04-20	2024-04-20	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
7	Cape Town Junior League Qualifier 2024 (U13 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	5	2	Yes	Analysis
8	CT District East Schools Chess Individuals Trails 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	4	2	Yes	Analysis
9	Curro Durbanville Chess Open Rapid 2023 (U12)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
10	CT Metro District East Top Schools Chess 2023 (U11 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	7	4	1.5	Yes	Analysis
11	GPCA Rapid 2023 (U12)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	7	1	Yes	Analysis
12	District East Schools Chess Individual Trials 2023 (U11 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
13	Kenridge Rapid 2022 (U12)	2022-11-05	2022-11-05	Rapid	Cape Town (WCT)	6	5	0	Yes	Analysis

#	Games	Start				End
1	4	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Alexander, J (Jordan)				Opponent Raaths, D (Daniel)
2	4	Tournament CT Metro District East Top Schools Chess 2024				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2024-07-27	rnd 2	type Standard	result 1	date 2025-02-01	rnd 2	type Standard	result 0.5
		Opponent Nomangola, A (Atile)				Opponent Harding, J (Jodie)
3	3	Tournament Cape Town Junior League Finals 2024				Tournament Cape Town Junior League Finals 2024
		date 2024-05-18	rnd 2	type Rapid	result 1	date 2024-05-18	rnd 4	type Rapid	result 1
		Opponent Mohodi, I (Itumeleng)				Opponent Tarantaal, J (Josh)

#	Games	Start				End
1	5	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2024-02-03	rnd 5	type Standard	result 1	date 2025-02-01	rnd 2	type Standard	result 0.5
		Opponent Klaassen, K (Keano)				Opponent Harding, J (Jodie)
2	4	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Alexander, J (Jordan)				Opponent Raaths, D (Daniel)
3	2	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Heydra, M (Matthew)				Opponent Jones, T (Tasreeq)

#	Games	Start				End
1	3	Tournament Cape Town Junior League Finals 2024				Tournament Cape Town Junior League Finals 2024
		date 2024-05-18	rnd 2	type Rapid	result 1	date 2024-05-18	rnd 4	type Rapid	result 1
		Opponent Mohodi, I (Itumeleng)				Opponent Tarantaal, J (Josh)
2	2	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 4	type Rapid	result 1	date 2024-04-20	rnd 5	type Rapid	result 1
		Opponent Qotsini, L (Linomtha)				Opponent Pieters, E (Eli)
3	2	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 1	type Rapid	result 1	date 2024-04-20	rnd 2	type Rapid	result 1
		Opponent Naidoo, C (Christianna Hope)				Opponent Msinekelwa, M (Mihle)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Alexander, J (Jordan)				Opponent Raaths, D (Daniel)
2	3	Tournament CT Metro District East Top Schools Chess 2024				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2024-07-27	rnd 2	type Standard	result 1	date 2025-02-01	rnd 1	type Standard	result 1
		Opponent Nomangola, A (Atile)				Opponent Rooi, S (Siphelele)
3	2	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Heydra, M (Matthew)				Opponent Jones, T (Tasreeq)

#	Games	Start				End
1	4	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-02	rnd 4	type Standard	result 1	date 2025-08-03	rnd 7	type Standard	result 1
		Opponent Alexander, J (Jordan)				Opponent Raaths, D (Daniel)
2	4	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2024-02-03	rnd 5	type Standard	result 1	date 2025-02-01	rnd 1	type Standard	result 1
		Opponent Klaassen, K (Keano)				Opponent Rooi, S (Siphelele)
3	2	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-10	rnd 2	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Heydra, M (Matthew)				Opponent Jones, T (Tasreeq)

#	Games	Start				End
1	2	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 4	type Rapid	result 1	date 2024-04-20	rnd 5	type Rapid	result 1
		Opponent Qotsini, L (Linomtha)				Opponent Pieters, E (Eli)
2	2	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 1	type Rapid	result 1	date 2024-04-20	rnd 2	type Rapid	result 1
		Opponent Naidoo, C (Christianna Hope)				Opponent Msinekelwa, M (Mihle)
3	2	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 3	type Rapid	result 1	date 2024-04-06	rnd 4	type Rapid	result 1
		Opponent Oosthuizen, L (Lian)				Opponent Sixaba, A (Amila)

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	Harding ,J (Jodie)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
1	Harding ,J (Jodie)	2	1251.1	1038.6	1	1242.8	1251.1	1	1200	826.1	0	0	0
2	Booysen ,G (Giavanna)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Booysen ,G (Giavanna)	2	1160.8	735.8	0	0	0	2	1199.2	735.8	0	0	0
3	Naicker ,A (Aidan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Naicker ,A (Aidan)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
4	Clarke ,M (Michiel)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Clarke ,M (Michiel)	1	1182.7	757.7	1	1200	757.7	0	0	0	0	0	0
5	Moralie ,K (Kevin)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Moralie ,K (Kevin)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Rooi ,S (Siphelele)	1	1	425	1	1	425	0	0	0	0	0	0
6	Rooi ,S (Siphelele)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Kruger ,D (Dawid)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Kruger ,D (Dawid)	1	1502.2	1077.2	1	1481.2	1077.2	0	0	0	0	0	0
8	Jones ,T (Tasreeq)	1	1	425	1	1	425	0	0	0	0	0	0
8	Jones ,T (Tasreeq)	1	1186.9	1611.9	1	1199.9	1611.9	0	0	0	0	0	0
9	Wenn ,E (Ethan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Wenn ,E (Ethan)	1	1199.1	1624.1	1	1198.9	1624.1	0	0	0	0	0	0
10	Maknabane ,B (Bomi)	1	1	425	1	1	425	0	0	0	0	0	0
10	Maknabane ,B (Bomi)	1	1200	1625	1	1200	1625	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, I (Iwan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms