Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pienaar, SW (Schalk Willem)

Chess SA id

176044919

FIDE id

Date of birth

1976-08-24 (Adult)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1117.5	1120	1022.8	944.4
Raw rating	1117.5	1120	1022.8	944.4
Weighted rating	1102.3	1101.3	1022.8	944.4
Weighted performance	830.7	826.3	0	0
Floor	617.5	620	522.8	500
K-factor	40	40	40	40
Min/Max rating change allowed	186.5	185.8	213.4	238.7
Highest rating	1200 2018-02-01	1200 2018-02-01	1230.4 2018-09-01	1200 2024-02-01
Highest raw rating	1117.5 2025-04-01	1120 2025-04-01	1022.8 2024-02-01	944.4 2024-02-01
Highest weighted rating	1096.3 2025-08-01	1093.9 2025-08-01	1022.8 2024-11-01	944.4 2024-11-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1230.4 2018-09-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1117.5	1120	1022.8	944.4
Analysis
Rating	1117.5	1120	1022.8	944.4
Raw rating	1117.5	1120	1022.8	944.4
Weighted rating	1102.3	1101.3	1022.8
Weighted performance	830.7	826.3	0
K-factor	40	40	40	40
Floor	617.5	620	522.8	500
Max/Min rating change allowed	186.5	185.8	213.4	238.7
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	1117.5	1120	1022.8	944.4
New weighted rating	1104.1	1103.5	1022.8	944.4
New weighted performance	823.7	819.3	0	0
Temp new rating	1117.5	1120	1022.8	944.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1117.5	1120	1022.8	944.4
New K-factor	40	40	40	40
New floor	617.5	620	522.8	500

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	0	0	0
	5	5	0
	9	9	0
	0	0	0
History	123	103	20

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	1.5	30	-170	1466.4	1296.4
Standard	5	1.5	30	-170	1466.4	1296.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	35	13	37.14	-109.3	1296.9	1187.6
Standard	29	9.5	32.76	-146.6	1325.1	1178.6
Rapid	6	3.5	58.33	70.8	1160.7	1231.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1117.5	1120	1022.8	944.4
2025-09-30	1117.5	1120	1022.8	944.4
2025-09-01	1117.5	1120	1022.8	944.4
2025-08-01	1117.5	1120	1022.8	944.4
2025-07-01	1117.5	1120	1022.8	944.4
2025-06-01	1117.5	1120	1022.8	944.4
2025-05-01	1117.5	1120	1022.8	944.4
2025-04-01	1117.5	1120	1022.8	944.4
2025-03-01	1084.1	1078.8	1022.8	944.4
2025-02-01	1084.1	1078.8	1022.8	944.4
2025-01-01	1084.1	1078.8	1022.8	944.4
2024-12-01	1084.1	1078.8	1022.8	944.4
2024-11-01	1084.1	1078.8	1022.8	944.4
2024-10-01	1084.1	1078.8	1022.8	944.4
2024-09-01	1084.1	1078.8	1022.8	944.4
2024-08-01	1084.1	1078.8	1022.8	944.4
2024-07-01	1084.1	1078.8	1022.8	944.4
2024-09-01	1084.1	1078.8	1022.8	944.4
2024-05-01	1084.1	1078.8	1022.8	944.4
2024-04-01	1084.1	1078.8	1022.8	944.4
2024-03-01	1084.1	1078.8	1022.8	944.4
2024-02-01	1084.1	1078.8	1022.8	944.4
2024-01-01	1084.1	1078.8	1022.8	944.4
2023-12-01	1084.1	1078.8	1022.8	944.4

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 Chess Open 2025 (B)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni Chess Open 2025 (B)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
2	Ekhuruleni Chess Trials 1 2023 (Open)	2023-03-25	2023-03-25	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	Heidelberg Open 2022 (B)	2022-02-05	2022-02-05	Standard	Sedibeng (GSV)	5	4	1	Yes	Analysis
4	Ekurhuleni Chess Open 2022 (B)	2022-01-08	2022-01-09	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
5	Alberton Chess Club Open 2020 (C)	2020-02-22	2020-02-22	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
6	Springs Chess Club Rapid 2018	2018-09-22	2018-09-22	Rapid	Ekurhuleni (GE)	6	6	3.5	Yes	Analysis
7	Human Rights Day Open 2018 (A)	2018-03-21	2018-03-21	Standard	Ekurhuleni (GE)	5	5	0.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Springs Chess Club Rapid 2018				Tournament Alberton Chess Club Open 2020
		date 2018-09-22	rnd 6	type Rapid	result 1	date 2020-02-22	rnd 3	type Standard	result 1
		Opponent Sikhonde, B (Banele)				Opponent Evans, R (Robyn)
2	3	Tournament Ekurhuleni Chess Open 2022				Tournament Heidelberg Open 2022
		date 2022-01-09	rnd 4	type Standard	result 1	date 2022-02-05	rnd 1	type Standard	result 1
		Opponent Nkabinde, K (Kwanele)				Opponent De Swardt, C (Chrizander)
3	2	Tournament Ekhuruleni Chess Trials 1 2023				Tournament Ekhuruleni Chess Trials 1 2023
		date 2023-03-25	rnd 3	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Fourie, P (Pieter)				Opponent Snyders, E (Estie)

#	Games	Start				End
1	4	Tournament Human Rights Day Open 2018				Tournament Alberton Chess Club Open 2020
		date 2018-03-21	rnd 5	type Standard	result 0.5	date 2020-02-22	rnd 3	type Standard	result 1
		Opponent Lingard, B (Bevan)				Opponent Evans, R (Robyn)
2	3	Tournament Ekurhuleni Chess Open 2022				Tournament Heidelberg Open 2022
		date 2022-01-09	rnd 4	type Standard	result 1	date 2022-02-05	rnd 1	type Standard	result 1
		Opponent Nkabinde, K (Kwanele)				Opponent De Swardt, C (Chrizander)
3	2	Tournament Ekhuruleni Chess Trials 1 2023				Tournament Ekhuruleni Chess Trials 1 2023
		date 2023-03-25	rnd 3	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Fourie, P (Pieter)				Opponent Snyders, E (Estie)

#	Games	Start				End
1	2	Tournament Springs Chess Club Rapid 2018				Tournament Springs Chess Club Rapid 2018
		date 2018-09-22	rnd 3	type Rapid	result 0.5	date 2018-09-22	rnd 4	type Rapid	result 1
		Opponent Rothmann, WR (Willem Ruwan)				Opponent Simpson, A (Amy)
2	1	Tournament Springs Chess Club Rapid 2018				Tournament Springs Chess Club Rapid 2018
		date 2018-09-22	rnd 6	type Rapid	result 1	date 2018-09-22	rnd 6	type Rapid	result 1
		Opponent Sikhonde, B (Banele)				Opponent Sikhonde, B (Banele)
3	1	Tournament Springs Chess Club Rapid 2018				Tournament Springs Chess Club Rapid 2018
		date 2018-09-22	rnd 1	type Rapid	result 1	date 2018-09-22	rnd 1	type Rapid	result 1
		Opponent Mbanjwa, L (Lubabalo)				Opponent Mbanjwa, L (Lubabalo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Springs Chess Club Rapid 2018				Tournament Alberton Chess Club Open 2020
		date 2018-09-22	rnd 6	type Rapid	result 1	date 2020-02-22	rnd 3	type Standard	result 1
		Opponent Sikhonde, B (Banele)				Opponent Evans, R (Robyn)
2	2	Tournament Ekhuruleni Chess Trials 1 2023				Tournament Ekhuruleni Chess Trials 1 2023
		date 2023-03-25	rnd 3	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Fourie, P (Pieter)				Opponent Snyders, E (Estie)
3	1	Tournament Ekurhuleni Chess Open 2025				Tournament Ekurhuleni Chess Open 2025
		date 2025-03-15	rnd 2	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Van den Berg, W (Wynand)				Opponent Van den Berg, W (Wynand)

#	Games	Start				End
1	3	Tournament Alberton Chess Club Open 2020				Tournament Alberton Chess Club Open 2020
		date 2020-02-22	rnd 1	type Standard	result 1	date 2020-02-22	rnd 3	type Standard	result 1
		Opponent Jaitas, K (Kittisak)				Opponent Evans, R (Robyn)
2	2	Tournament Ekhuruleni Chess Trials 1 2023				Tournament Ekhuruleni Chess Trials 1 2023
		date 2023-03-25	rnd 3	type Standard	result 1	date 2023-03-25	rnd 4	type Standard	result 1
		Opponent Fourie, P (Pieter)				Opponent Snyders, E (Estie)
3	1	Tournament Ekurhuleni Chess Open 2025				Tournament Ekurhuleni Chess Open 2025
		date 2025-03-15	rnd 2	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Van den Berg, W (Wynand)				Opponent Van den Berg, W (Wynand)

#	Games	Start				End
1	1	Tournament Springs Chess Club Rapid 2018				Tournament Springs Chess Club Rapid 2018
		date 2018-09-22	rnd 6	type Rapid	result 1	date 2018-09-22	rnd 6	type Rapid	result 1
		Opponent Sikhonde, B (Banele)				Opponent Sikhonde, B (Banele)
2	1	Tournament Springs Chess Club Rapid 2018				Tournament Springs Chess Club Rapid 2018
		date 2018-09-22	rnd 4	type Rapid	result 1	date 2018-09-22	rnd 4	type Rapid	result 1
		Opponent Simpson, A (Amy)				Opponent Simpson, A (Amy)
3	1	Tournament Springs Chess Club Rapid 2018				Tournament Springs Chess Club Rapid 2018
		date 2018-09-22	rnd 1	type Rapid	result 1	date 2018-09-22	rnd 1	type Rapid	result 1
		Opponent Mbanjwa, L (Lubabalo)				Opponent Mbanjwa, L (Lubabalo)

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	Jaitas ,K (Kittisak)	2	1	0	2	1	0	0	0	0	0	0	0
1	Jaitas ,K (Kittisak)	2	1334.4	1334.4	2	1322.8	1334.4	0	0	0	0	0	0
2	Snibbe ,W (Wouter)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Snibbe ,W (Wouter)	1	1245.2	1245.2	1	1238.7	1245.2	0	0	0	0	0	0
3	Shaikh ,M (Mohammedsaad)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Shaikh ,M (Mohammedsaad)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Snyders ,E (Estie)	1	1	425	1	1	425	0	0	0	0	0	0
4	Snyders ,E (Estie)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Sie ,KJ (Kouassi Jeremie)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Sie ,KJ (Kouassi Jeremie)	1	1234.8	809.8	1	1198.3	809.8	0	0	0	0	0	0
6	Van den Berg ,W (Wynand)	1	1	425	1	1	425	0	0	0	0	0	0
6	Van den Berg ,W (Wynand)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Huisamen ,D (De Villiers)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Huisamen ,D (De Villiers)	1	1301.8	876.8	1	1293.1	876.8	0	0	0	0	0	0
8	Diedericks ,C (Christiaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Diedericks ,C (Christiaan)	1	1376.3	951.3	1	1370.8	951.3	0	0	0	0	0	0
9	Hayes ,JJ (Jurie Jeremias)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Hayes ,JJ (Jurie Jeremias)	1	1578	1153	1	1578	1153	0	0	0	0	0	0
10	De Swardt ,C (Chrizander)	1	1	425	1	1	425	0	0	0	0	0	0
10	De Swardt ,C (Chrizander)	1	1319.5	1744.5	1	1320.5	1744.5	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, SW (Schalk Willem)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms