Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pienaar, D (David)

Chess SA id

1120106806

FIDE id

Date of birth

2012-09-03 (U14)

Gender

Male

Region

Pixley-ka-Seme (NCP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-04-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1241.5	1250.6	1200	1200
Raw rating	1241.5	1250.6	1200	1200
Weighted rating	1240.3	1249.2	1200	1200
Weighted performance	972.9	975.1	0	0
Floor	741.5	750.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	156.3	154.3	165.8	165.8
Highest rating	1241.5 2024-05-01	1250.6 2024-05-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1241.5 2024-05-01	1250.6 2024-05-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1239.6 2025-08-01	1248.3 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1213 2024-04-01	1215.7 2024-04-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1241.5	1250.6	1200	1200
Analysis
Rating	1241.5	1250.6	1200	1200
Raw rating	1241.5	1250.6	1200	1200
Weighted rating	1240.3	1249.2	1200
Weighted performance	972.9	975.1	0
K-factor	36	36	36	36
Floor	741.5	750.6	700	700
Max/Min rating change allowed	156.3	154.3	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	1241.5	1250.6	1200	1200
New weighted rating	1240.6	1249.5	1200	1200
New weighted performance	972.5	974.6	0	0
Temp new rating	1241.5	1250.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1241.5	1250.6	1200	1200
New K-factor	36	36	36	36
New floor	741.5	750.6	700	700

Item	Main	Standard
	0	0
	0	0
	10	10
	10	10
	5	5
	15	15
History	58	58

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Pixley-ka-Seme (NCP)
Province	Northern Cape (NC)
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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	58	29.5	50.86	7.3	1181.4	1188.8
Standard	58	29.5	50.86	7.3	1181.4	1188.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1241.5	1250.6	1200	1200
2025-09-01	1241.5	1250.6	1200	1200
2025-08-01	1241.5	1250.6	1200	1200
2025-07-01	1241.5	1250.6	1200	1200
2025-06-01	1241.5	1250.6	1200	1200
2025-05-01	1241.5	1250.6	1200	1200
2025-04-01	1241.5	1250.6	1200	1200
2025-03-01	1241.5	1250.6	1200	1200
2025-02-01	1241.5	1250.6	1200	1200
2025-01-01	1241.5	1250.6	1200	1200
2024-12-01	1241.5	1250.6	1200	1200
2024-11-01	1241.5	1250.6	1200	1200
2024-10-01	1241.5	1250.6	1200	1200
2024-09-01	1241.5	1250.6	1200	1200
2024-08-01	1241.5	1250.6	1200	1200
2024-07-01	1241.5	1250.6	1200	1200
2024-06-01	1241.5	1250.6	1200	1200
2024-08-01	1241.5	1250.6	1200	1200
2024-04-01	1219.7	1222.9	1200	1200
2024-03-01	1219.7	1222.9	1200	1200
2024-02-01	1230.6	1238	1200	1200
2024-01-01	1230.6	1238	1200	1200
2023-12-01	1230.6	1238	1200	1200
2023-11-01	1230.6	1238	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Hopetown Open Chess Tournament 2024 (U14+U16)	2024-04-20	2024-04-20	Standard	Pixley-ka-Seme (NCP)	5	5	3	Yes	Analysis
2	Hopetown Open Chess Tournament 2024 (U14)	2024-02-10	2024-02-10	Standard	Frances Baard (NCF)	5	5	2	Yes	Analysis
3	Hopetown Chess Open Tournament 2023 (U10+U12)	2023-08-05	2023-08-05	Standard	Pixley-ka-Seme (NCP)	5	5	3	Yes	Analysis
4	Hopetown Schools Chess Open Tournament 2023 (U11)	2023-02-25	2023-02-25	Standard	John Taolo Gaetswewe (NCJ)	5	5	4	Yes	Analysis
5	Hopetown Chess Club Open Tournament 2022 (U7-U11)	2022-05-14	2022-05-14	Standard	John Taolo Gaetswewe (NCJ)	5	5	3	Yes	Analysis
6	Pixley Chess Open 2021 (U8-U12)	2021-05-15	2021-05-15	Standard	Pixley-ka-Seme (NCP)	5	5	3	Yes	Analysis
7	Pixley Chess Open 2 2021 (B)	2021-04-17	2021-04-17	Standard	Pixley-ka-Seme (NCP)	5	5	2	Yes	Analysis
8	Pixley Chess Open 2021	2021-03-27	2021-03-27	Standard	Pixley-ka-Seme (NCP)	5	5	3	Yes	Analysis
9	NC Open Schools 2020 (U7+U9 Open + U9 Girls)	2020-02-29	2020-02-29	Standard	Frances Baard (NCF)	5	5	1.5	Yes	Analysis
10	Kimberley Chess Club Schools` Open 2019 (U7+U9 Open)	2019-07-20	2019-07-20	Standard	Frances Baard (NCF)	5	4	2	Yes	Analysis
11	Pixley ka Seme Schools Trials 2019 (U7+U9 Boys+U9 Girls)	2019-03-09	2019-03-09	Standard	Pixley-ka-Seme (NCP)	5	5	3	Yes	Analysis
12	Sol Plaatje University Chess Club Open 2018 (C)	2018-10-13	2018-10-13	Standard	Frances Baard (NCF)	5	4	0	Yes	Analysis

#	Games	Start				End
1	4	Tournament Hopetown Chess Open Tournament 2023				Tournament Hopetown Open Chess Tournament 2024
		date 2023-08-05	rnd 3	type Standard	result 1	date 2024-02-10	rnd 1	type Standard	result 1
		Opponent Fischer, A (Amanda)				Opponent Horn, Z (Zandru)
2	3	Tournament Hopetown Schools Chess Open Tournament 2023				Tournament Hopetown Schools Chess Open Tournament 2023
		date 2023-02-25	rnd 3	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 1
		Opponent Van Zyl, J (Johanna)				Opponent Links, C (Christiano)
3	3	Tournament Pixley Chess Open 2021				Tournament Pixley Chess Open 2 2021
		date 2021-03-27	rnd 4	type Standard	result 1	date 2021-04-17	rnd 1	type Standard	result 1
		Opponent Pieterse, F (Faith)				Opponent Schlechter, L (Louw)

#	Games	Start				End
1	4	Tournament Hopetown Chess Open Tournament 2023				Tournament Hopetown Open Chess Tournament 2024
		date 2023-08-05	rnd 3	type Standard	result 1	date 2024-02-10	rnd 1	type Standard	result 1
		Opponent Fischer, A (Amanda)				Opponent Horn, Z (Zandru)
2	3	Tournament Hopetown Schools Chess Open Tournament 2023				Tournament Hopetown Schools Chess Open Tournament 2023
		date 2023-02-25	rnd 3	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 1
		Opponent Van Zyl, J (Johanna)				Opponent Links, C (Christiano)
3	3	Tournament Pixley Chess Open 2021				Tournament Pixley Chess Open 2 2021
		date 2021-03-27	rnd 4	type Standard	result 1	date 2021-04-17	rnd 1	type Standard	result 1
		Opponent Pieterse, F (Faith)				Opponent Schlechter, L (Louw)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Hopetown Chess Open Tournament 2023				Tournament Hopetown Open Chess Tournament 2024
		date 2023-08-05	rnd 3	type Standard	result 1	date 2024-02-10	rnd 1	type Standard	result 1
		Opponent Fischer, A (Amanda)				Opponent Horn, Z (Zandru)
2	3	Tournament Hopetown Schools Chess Open Tournament 2023				Tournament Hopetown Schools Chess Open Tournament 2023
		date 2023-02-25	rnd 3	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 1
		Opponent Van Zyl, J (Johanna)				Opponent Links, C (Christiano)
3	3	Tournament Pixley Chess Open 2021				Tournament Pixley Chess Open 2 2021
		date 2021-03-27	rnd 4	type Standard	result 1	date 2021-04-17	rnd 1	type Standard	result 1
		Opponent Pieterse, F (Faith)				Opponent Schlechter, L (Louw)

#	Games	Start				End
1	4	Tournament Hopetown Chess Open Tournament 2023				Tournament Hopetown Open Chess Tournament 2024
		date 2023-08-05	rnd 3	type Standard	result 1	date 2024-02-10	rnd 1	type Standard	result 1
		Opponent Fischer, A (Amanda)				Opponent Horn, Z (Zandru)
2	3	Tournament Hopetown Schools Chess Open Tournament 2023				Tournament Hopetown Schools Chess Open Tournament 2023
		date 2023-02-25	rnd 3	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 1
		Opponent Van Zyl, J (Johanna)				Opponent Links, C (Christiano)
3	3	Tournament Pixley Chess Open 2021				Tournament Pixley Chess Open 2 2021
		date 2021-03-27	rnd 4	type Standard	result 1	date 2021-04-17	rnd 1	type Standard	result 1
		Opponent Pieterse, F (Faith)				Opponent Schlechter, L (Louw)

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	Botha ,A (Ane)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
1	Botha ,A (Ane)	4	1144.2	1356.8	4	1141.6	1356.8	0	0	0	0	0	0
2	Vermeulen ,JB (Johannes Bernardus)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
2	Vermeulen ,JB (Johannes Bernardus)	3	1165.8	1307.5	3	1161.6	1307.5	0	0	0	0	0	0
3	Potgieter ,M (Martin-Juan)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Potgieter ,M (Martin-Juan)	3	1147.3	1289	3	1139.2	1289	0	0	0	0	0	0
4	Ahjum ,AXE (Annabelle)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Ahjum ,AXE (Annabelle)	2	1136.8	711.8	2	1131.5	711.8	0	0	0	0	0	0
5	Oliphant ,S (Sinesipho)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Oliphant ,S (Sinesipho)	2	1027	814.5	2	1002	814.5	0	0	0	0	0	0
6	Siyoko ,B (Bonakele)	2	1	0	2	1	0	0	0	0	0	0	0
6	Siyoko ,B (Bonakele)	2	1153.2	1153.2	2	1144.2	1153.2	0	0	0	0	0	0
7	Bissett ,CJ (Christiaan Jacobus)	2	1	0	2	1	0	0	0	0	0	0	0
7	Bissett ,CJ (Christiaan Jacobus)	2	1220.2	1220.2	2	1224.6	1220.2	0	0	0	0	0	0
8	Vermeulen ,P (Petrus Van Der Walt)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Vermeulen ,P (Petrus Van Der Walt)	2	1334.8	909.8	2	1330.8	909.8	0	0	0	0	0	0
9	Murphy ,M (Maritz)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Murphy ,M (Maritz)	1	1189.4	764.4	1	1187.6	764.4	0	0	0	0	0	0
10	Coetzee ,E (Erik)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Coetzee ,E (Erik)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Pienaar, D (David)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms