Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pienaar, JM (Johan)

Chess SA id

103030147

FIDE id

Date of birth

2003-08-07 (Adult)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2019-10-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	996.4	1002	984.8	984.8
Raw rating	996.4	1002	984.8	984.8
Weighted rating	996.4	1002	984.8	984.8
Weighted performance	0	0	0	0
Floor	500	502	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	221.6	219.9	225.3	225.3
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	996.4 2024-02-01	1002 2024-02-01	984.8 2024-02-01	984.8 2024-02-01
Highest weighted rating	996.4 2024-11-01	1002 2024-11-01	984.8 2024-11-01	984.8 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	996.4	1002	984.8	984.8
Analysis
Rating	996.4	1002	984.8	984.8
Raw rating	996.4	1002	984.8	984.8
Weighted rating	996.4	1002	984.8
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	502	500	500
Max/Min rating change allowed	221.6	219.9	225.3	225.3
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	996.4	1002	984.8	984.8
New weighted rating	996.4	1002	984.8	984.8
New weighted performance	0	0	0	0
Temp new rating	996.4	1002	984.8	984.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	996.4	1002	984.8	984.8
New K-factor	40	40	40	40
New floor	500	502	500	500

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	307	307

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Mangaung (FMB)
Province	Free State (FS)
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	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	16	8.5	53.12	26.6	977.2	1003.8
Standard	16	8.5	53.12	26.6	977.2	1003.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	996.4	1002	984.8	984.8
2025-09-01	996.4	1002	984.8	984.8
2025-08-01	996.4	1002	984.8	984.8
2025-07-01	996.4	1002	984.8	984.8
2025-06-01	996.4	1002	984.8	984.8
2025-05-01	996.4	1002	984.8	984.8
2025-04-01	996.4	1002	984.8	984.8
2025-03-01	996.4	1002	984.8	984.8
2025-02-01	996.4	1002	984.8	984.8
2025-01-01	996.4	1002	984.8	984.8
2024-12-01	996.4	1002	984.8	984.8
2024-11-01	996.4	1002	984.8	984.8
2024-10-01	996.4	1002	984.8	984.8
2024-09-01	996.4	1002	984.8	984.8
2024-08-01	996.4	1002	984.8	984.8
2024-07-01	996.4	1002	984.8	984.8
2024-06-01	996.4	1002	984.8	984.8
2024-08-01	996.4	1002	984.8	984.8
2024-04-01	996.4	1002	984.8	984.8
2024-03-01	996.4	1002	984.8	984.8
2024-02-01	996.4	1002	984.8	984.8
2024-01-01	996.4	1002	984.8	984.8
2023-12-01	996.4	1002	984.8	984.8
2023-11-01	996.4	1002	984.8	984.8

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	Mangaung Metro Chess October 2019 (B)	2019-10-11	2019-10-12	Standard	Mangaung (FMB)	5	4	2	Yes	Analysis
2	Mangaung Metro Chess 19 & 20 January 2018 (C)	2018-01-19	2018-01-20	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
3	South African Junior Team Championships 2017 (U16D)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament South African Junior Team Championships 2017				Tournament Mangaung Metro Chess 19 & 20 January 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-01-20	rnd 3	type Standard	result 0.5
		Opponent Olivier, A (Ashle)				Opponent Van Rooyen, H (Hanro)
2	2	Tournament Mangaung Metro Chess October 2019				Tournament Mangaung Metro Chess October 2019
		date 2019-10-12	rnd 4	type Standard	result 1	date 2019-10-12	rnd 5	type Standard	result 1
		Opponent Minnaar, A (Ammoret)				Opponent Shariff, S (Stacey)
3	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Haak, JG (Joshua)				Opponent Lefeta, T (Thato)

#	Games	Start				End
1	4	Tournament South African Junior Team Championships 2017				Tournament Mangaung Metro Chess 19 & 20 January 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-01-20	rnd 3	type Standard	result 0.5
		Opponent Olivier, A (Ashle)				Opponent Van Rooyen, H (Hanro)
2	2	Tournament Mangaung Metro Chess October 2019				Tournament Mangaung Metro Chess October 2019
		date 2019-10-12	rnd 4	type Standard	result 1	date 2019-10-12	rnd 5	type Standard	result 1
		Opponent Minnaar, A (Ammoret)				Opponent Shariff, S (Stacey)
3	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Haak, JG (Joshua)				Opponent Lefeta, T (Thato)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament Mangaung Metro Chess 19 & 20 January 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-01-19	rnd 2	type Standard	result 1
		Opponent Olivier, A (Ashle)				Opponent Eliades, AK (Alexandros)
2	2	Tournament Mangaung Metro Chess October 2019				Tournament Mangaung Metro Chess October 2019
		date 2019-10-12	rnd 4	type Standard	result 1	date 2019-10-12	rnd 5	type Standard	result 1
		Opponent Minnaar, A (Ammoret)				Opponent Shariff, S (Stacey)
3	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Haak, JG (Joshua)				Opponent Lefeta, T (Thato)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament Mangaung Metro Chess 19 & 20 January 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-01-19	rnd 2	type Standard	result 1
		Opponent Olivier, A (Ashle)				Opponent Eliades, AK (Alexandros)
2	2	Tournament Mangaung Metro Chess October 2019				Tournament Mangaung Metro Chess October 2019
		date 2019-10-12	rnd 4	type Standard	result 1	date 2019-10-12	rnd 5	type Standard	result 1
		Opponent Minnaar, A (Ammoret)				Opponent Shariff, S (Stacey)
3	2	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Haak, JG (Joshua)				Opponent Lefeta, T (Thato)

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	Olivier ,A (Ashle)	1	1	425	1	1	425	0	0	0	0	0	0
1	Olivier ,A (Ashle)	1	746	1171	1	746	1171	0	0	0	0	0	0
2	Redguard ,J (Junaid)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Redguard ,J (Junaid)	1	1297.2	872.2	1	1295.4	872.2	0	0	0	0	0	0
3	Haak ,JG (Joshua George)	1	1	425	1	1	425	0	0	0	0	0	0
3	Haak ,JG (Joshua George)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Shariff ,S (Stacey)	1	1	425	1	1	425	0	0	0	0	0	0
4	Shariff ,S (Stacey)	1	917.8	1342.8	1	886	1342.8	0	0	0	0	0	0
5	Pretorius ,W (Wean)	1	1	425	1	1	425	0	0	0	0	0	0
5	Pretorius ,W (Wean)	1	1027.6	1452.6	1	1027.6	1452.6	0	0	0	0	0	0
6	Prins ,K (Kehaam)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Prins ,K (Kehaam)	1	692.5	267.5	1	692.5	267.5	0	0	0	0	0	0
7	Minnaar ,A (Ammoret)	1	1	425	1	1	425	0	0	0	0	0	0
7	Minnaar ,A (Ammoret)	1	1067.1	1492.1	1	1058.8	1492.1	0	0	0	0	0	0
8	Monyane ,K (Kamohelo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Monyane ,K (Kamohelo)	1	882.6	1307.6	1	882.6	1307.6	0	0	0	0	0	0
9	Viljoen ,HP (Henri Pieter)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Viljoen ,HP (Henri Pieter)	1	869.6	444.6	1	869.6	444.6	0	0	0	0	0	0
10	Boje ,C (Carissa)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Boje ,C (Carissa)	1	1222.5	797.5	1	1220.1	797.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Pienaar, JM (Johan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms