Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pienaar, J (Juan)

Chess SA id

1110158373

FIDE id

Date of birth

2011-04-15 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-05-11

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1282.2	1294.3	1200	1200
Raw rating	1282.2	1294.3	1200	1200
Weighted rating	1281.4	1293.6	1200	1200
Weighted performance	0	0	0	0
Floor	782.2	794.3	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	147.5	145	165.8	165.8
Highest rating	1427.9 2023-07-01	1427.4 2023-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1282.2 2024-06-01	1294.3 2024-06-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1280.4 2025-08-01	1292.8 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1427.9 2023-07-01	1427.4 2023-07-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1282.2	1294.3	1200	1200
Analysis
Rating	1282.2	1294.3	1200	1200
Raw rating	1282.2	1294.3	1200	1200
Weighted rating	1281.4	1293.6	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	782.2	794.3	700	700
Max/Min rating change allowed	147.5	145	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	1282.2	1294.3	1200	1200
New weighted rating	1281.6	1293.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1282.2	1294.3	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1282.2	1294.3	1200	1200
New K-factor	36	36	36	36
New floor	782.2	794.3	700	700

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

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	15	10	66.67	141.7	1230.8	1372.5
Standard	15	10	66.67	141.7	1230.8	1372.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1282.2	1294.3	1200	1200
2025-09-30	1282.2	1294.3	1200	1200
2025-09-01	1282.2	1294.3	1200	1200
2025-08-01	1282.2	1294.3	1200	1200
2025-07-01	1282.2	1294.3	1200	1200
2025-06-01	1282.2	1294.3	1200	1200
2025-05-01	1282.2	1294.3	1200	1200
2025-04-01	1282.2	1294.3	1200	1200
2025-03-01	1282.2	1294.3	1200	1200
2025-02-01	1282.2	1294.3	1200	1200
2025-01-01	1282.2	1294.3	1200	1200
2024-12-01	1282.2	1294.3	1200	1200
2024-11-01	1282.2	1294.3	1200	1200
2024-10-01	1282.2	1294.3	1200	1200
2024-09-01	1282.2	1294.3	1200	1200
2024-08-01	1282.2	1294.3	1200	1200
2024-07-01	1282.2	1294.3	1200	1200
2024-09-01	1282.2	1294.3	1200	1200
2024-05-01	1270.2	1284.2	1200	1200
2024-04-01	1270.2	1284.2	1200	1200
2024-03-01	1270.2	1284.2	1200	1200
2024-02-01	1270.2	1284.2	1200	1200
2024-01-01	1270.2	1284.2	1200	1200
2023-12-01	1270.2	1284.2	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	2024 Tshwane South School District CLOSED Individual Championships (U13 Mixed)	2024-05-11	2024-05-11	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	2023 Tshwane South School District CLOSED League Championship (U13)	2023-07-29	2023-07-29	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
3	2023 Menlo Open Tournament (D)	2023-07-22	2023-07-22	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2023 Menlo Open Tournament				Tournament 2023 Tshwane South School District CLOSED League Championship
		date 2023-07-22	rnd 4	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Van Der Merwe, H (Hendrik)				Opponent Ramkhelawan, A (Adhi)
2	3	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2023-07-29	rnd 4	type Standard	result 1	date 2024-05-11	rnd 1	type Standard	result 1
		Opponent Van Rooyen, C (Conrad)				Opponent Le Roux, B (Benn)
3	2	Tournament 2024 Tshwane South School District CLOSED Individual Championships				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2024-05-11	rnd 3	type Standard	result 1	date 2024-05-11	rnd 4	type Standard	result 1
		Opponent Richards, J (Jc)				Opponent Steyn, JP (Jacques Phillip)

#	Games	Start				End
1	4	Tournament 2023 Menlo Open Tournament				Tournament 2023 Tshwane South School District CLOSED League Championship
		date 2023-07-22	rnd 4	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Van Der Merwe, H (Hendrik)				Opponent Ramkhelawan, A (Adhi)
2	3	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2023-07-29	rnd 4	type Standard	result 1	date 2024-05-11	rnd 1	type Standard	result 1
		Opponent Van Rooyen, C (Conrad)				Opponent Le Roux, B (Benn)
3	2	Tournament 2024 Tshwane South School District CLOSED Individual Championships				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2024-05-11	rnd 3	type Standard	result 1	date 2024-05-11	rnd 4	type Standard	result 1
		Opponent Richards, J (Jc)				Opponent Steyn, JP (Jacques Phillip)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2023 Menlo Open Tournament				Tournament 2023 Tshwane South School District CLOSED League Championship
		date 2023-07-22	rnd 4	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Van Der Merwe, H (Hendrik)				Opponent Ramkhelawan, A (Adhi)
2	3	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2023-07-29	rnd 4	type Standard	result 1	date 2024-05-11	rnd 1	type Standard	result 1
		Opponent Van Rooyen, C (Conrad)				Opponent Le Roux, B (Benn)
3	2	Tournament 2024 Tshwane South School District CLOSED Individual Championships				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2024-05-11	rnd 3	type Standard	result 1	date 2024-05-11	rnd 4	type Standard	result 1
		Opponent Richards, J (Jc)				Opponent Steyn, JP (Jacques Phillip)

#	Games	Start				End
1	4	Tournament 2023 Menlo Open Tournament				Tournament 2023 Tshwane South School District CLOSED League Championship
		date 2023-07-22	rnd 4	type Standard	result 1	date 2023-07-29	rnd 2	type Standard	result 1
		Opponent Van Der Merwe, H (Hendrik)				Opponent Ramkhelawan, A (Adhi)
2	3	Tournament 2023 Tshwane South School District CLOSED League Championship				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2023-07-29	rnd 4	type Standard	result 1	date 2024-05-11	rnd 1	type Standard	result 1
		Opponent Van Rooyen, C (Conrad)				Opponent Le Roux, B (Benn)
3	2	Tournament 2024 Tshwane South School District CLOSED Individual Championships				Tournament 2024 Tshwane South School District CLOSED Individual Championships
		date 2024-05-11	rnd 3	type Standard	result 1	date 2024-05-11	rnd 4	type Standard	result 1
		Opponent Richards, J (Jc)				Opponent Steyn, JP (Jacques Phillip)

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	Van Wyk ,L (Louis)	1	1	425	1	1	425	0	0	0	0	0	0
1	Van Wyk ,L (Louis)	1	1253.1	1678.1	1	1247.9	1678.1	0	0	0	0	0	0
2	Ramkhelawan ,A (Adhi)	1	1	425	1	1	425	0	0	0	0	0	0
2	Ramkhelawan ,A (Adhi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Van Rooyen ,C (Conrad)	1	1	425	1	1	425	0	0	0	0	0	0
3	Van Rooyen ,C (Conrad)	1	1235.5	1660.5	1	1242.8	1660.5	0	0	0	0	0	0
4	Van Der Merwe ,H (Hendrik)	1	1	425	1	1	425	0	0	0	0	0	0
4	Van Der Merwe ,H (Hendrik)	1	1209.9	1634.9	1	1209	1634.9	0	0	0	0	0	0
5	Yousafzai ,S (Sangin Khan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Yousafzai ,S (Sangin Khan)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	De Beer ,L (Liam)	1	1	425	1	1	425	0	0	0	0	0	0
6	De Beer ,L (Liam)	1	1122.9	1547.9	1	1115.8	1547.9	0	0	0	0	0	0
7	Opperman ,J (Jordan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Opperman ,J (Jordan)	1	1293.9	868.9	1	1292.9	868.9	0	0	0	0	0	0
8	Le Roux ,B (Benn)	1	1	425	1	1	425	0	0	0	0	0	0
8	Le Roux ,B (Benn)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Kock ,L (Luca)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Kock ,L (Luca)	1	1328.6	903.6	1	1313.9	903.6	0	0	0	0	0	0
10	Liang ,YX (Yi-Xuan (Bowie))	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Liang ,YX (Yi-Xuan (Bowie))	1	1489.6	1064.6	1	1499.5	1064.6	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

Pienaar, J (Juan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms