Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pienaar, I (Izak)

Chess SA id

1140308964

FIDE id

Date of birth

2014-01-30 (U12)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1244.2	1254.4	1200	1200
Raw rating	1244.2	1254.4	1200	1200
Weighted rating	1193.1	1191.4	1200	1200
Weighted performance	0	0	0	0
Floor	744.2	754.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.7	153.4	165.8	165.8
Highest rating	1244.2 2025-09-01	1254.4 2025-09-01	1200 2024-10-01	1200 2024-10-01
Highest raw rating	1244.2 2025-09-01	1254.4 2025-09-01	1200 2024-10-01	1200 2024-10-01
Highest weighted rating	1200 2024-08-01	1200 2024-08-01	1200 2024-10-01	1200 2024-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-10-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1244.2	1254.4	1200	1200
Analysis
Rating	1244.2	1254.4	1200	1200
Raw rating	1244.2	1254.4	1200	1200
Weighted rating	1193.1	1191.4	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	744.2	754.4	700	700
Max/Min rating change allowed	155.7	153.4	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	1244.2	1254.4	1200	1200
New weighted rating	1197.3	1196.5	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1244.2	1254.4	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1244.2	1254.4	1200	1200
New K-factor	36	36	36	36
New floor	744.2	754.4	700	700

Item	Main	Standard
	0	0
	5	5
	5	5
	0	0
	0	0
	0	0
History	10	10

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
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	5	4	80	255	1269.8	1524.8
Standard	5	4	80	255	1269.8	1524.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	5	50	0	1277.5	1277.5
Standard	10	5	50	0	1277.5	1277.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1244.2	1254.4	1200	1200
2025-09-01	1244.2	1254.4	1200	1200
2025-08-01	1186	1182.7	1200	1200
2025-07-01	1186	1182.7	1200	1200
2025-06-01	1186	1182.7	1200	1200
2025-05-01	1186	1182.7	1200	1200
2025-04-01	1186	1182.7	1200	1200
2025-03-01	1186	1182.7	1200	1200
2025-02-01	1185	1181.4	1200	1200
2025-01-01	1165.1	1156.8	1200	1200
2024-12-01	1165.1	1156.8	1200	1200
2024-11-01	1165.1	1156.8	1200	1200
2024-10-01	1165.1	1156.8	1200	1200
2024-09-01	1165.1	1156.8	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	2025 Tshwane South School District CLOSED League Championship (U11A)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Tshwane South School District CLOSED League Championship (U11A)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
2	D4 Tshwane South District Schools Teams Chess Tournament 2024 (U11A)	2024-08-03	2024-08-03	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 4	type Standard	result 1	date 2025-08-15	rnd 5	type Standard	result 1
		Opponent Mamabolo, M (Makhudu)				Opponent Moloi, R (Retshedisitswe)
2	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 1	type Standard	result 1	date 2025-08-15	rnd 2	type Standard	result 1
		Opponent Langeveldt, R (Reynardt)				Opponent Van Diemen, B (Benjamin)
3	1	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 4	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Van Reenen, C (Connor)				Opponent Van Reenen, C (Connor)

#	Games	Start				End
1	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 4	type Standard	result 1	date 2025-08-15	rnd 5	type Standard	result 1
		Opponent Mamabolo, M (Makhudu)				Opponent Moloi, R (Retshedisitswe)
2	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 1	type Standard	result 1	date 2025-08-15	rnd 2	type Standard	result 1
		Opponent Langeveldt, R (Reynardt)				Opponent Van Diemen, B (Benjamin)
3	1	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 4	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Van Reenen, C (Connor)				Opponent Van Reenen, C (Connor)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 4	type Standard	result 1	date 2025-08-15	rnd 5	type Standard	result 1
		Opponent Mamabolo, M (Makhudu)				Opponent Moloi, R (Retshedisitswe)
2	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 1	type Standard	result 1	date 2025-08-15	rnd 2	type Standard	result 1
		Opponent Langeveldt, R (Reynardt)				Opponent Van Diemen, B (Benjamin)
3	1	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 4	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Van Reenen, C (Connor)				Opponent Van Reenen, C (Connor)

#	Games	Start				End
1	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 4	type Standard	result 1	date 2025-08-15	rnd 5	type Standard	result 1
		Opponent Mamabolo, M (Makhudu)				Opponent Moloi, R (Retshedisitswe)
2	2	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 1	type Standard	result 1	date 2025-08-15	rnd 2	type Standard	result 1
		Opponent Langeveldt, R (Reynardt)				Opponent Van Diemen, B (Benjamin)
3	1	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 4	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Van Reenen, C (Connor)				Opponent Van Reenen, C (Connor)

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	Mamabolo ,M (Makhudu)	2	1	0	2	1	0	0	0	0	0	0	0
1	Mamabolo ,M (Makhudu)	2	1190.4	1190.4	2	1187	1190.4	0	0	0	0	0	0
2	Wolvaardt ,J (Jonathan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Wolvaardt ,J (Jonathan)	1	1424.1	999.1	1	1429.5	999.1	0	0	0	0	0	0
3	De Bruin ,H (Hanno)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	De Bruin ,H (Hanno)	1	1171.6	746.6	1	1162.8	746.6	0	0	0	0	0	0
4	Van Diemen ,B (Benjamin)	1	1	425	1	1	425	0	0	0	0	0	0
4	Van Diemen ,B (Benjamin)	1	1216.6	1641.6	1	1220	1641.6	0	0	0	0	0	0
5	Roos ,E (Ewan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Roos ,E (Ewan)	1	1401.9	976.9	1	1397.3	976.9	0	0	0	0	0	0
6	Moloi ,R (Retshedisitswe)	1	1	425	1	1	425	0	0	0	0	0	0
6	Moloi ,R (Retshedisitswe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Janse Van Rensburg ,J (Josh)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Janse Van Rensburg ,J (Josh)	1	1451.8	1026.8	1	1445.3	1026.8	0	0	0	0	0	0
8	Langeveldt ,R (Reynardt)	1	1	425	1	1	425	0	0	0	0	0	0
8	Langeveldt ,R (Reynardt)	1	1317.6	1742.6	1	1336	1742.6	0	0	0	0	0	0
9	Van Reenen ,C (Connor)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Reenen ,C (Connor)	1	1210.7	1635.7	1	1200	1635.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Pienaar, I (Izak)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms