Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pienaar, J (Jo-Gean)

Chess SA id

1160315956

FIDE id

Date of birth

2016-07-07 (U10)

Gender

Male

Region

Lejweleputswa (FLW)

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

1225.1

Item	Main	Standard	Rapid	Blitz
Rating	1246.2	1250	1200	1200
Raw rating	1246.2	1250	1200	1200
Weighted rating	1214.5	1216.5	1200	1200
Weighted performance	1209.9	1207.4	0	0
Floor	746.2	750	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.3	154.4	165.8	165.8
Highest rating	1246.2 2025-09-01	1250 2025-09-01	1200 2025-03-01	1200 2025-03-01
Highest raw rating	1246.2 2025-09-01	1250 2025-09-01	1200 2025-03-01	1200 2025-03-01
Highest weighted rating	1211.3 2025-09-01	1213.1 2025-09-01	1200 2025-03-01	1200 2025-03-01
Highest weighted performance	1222.4 2025-09-01	1219.9 2025-09-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1246.2	1250	1200	1200
Analysis
Rating	1246.2	1250	1200	1200
Raw rating	1246.2	1250	1200	1200
Weighted rating	1214.5	1216.5	1200
Weighted performance	1209.9	1207.4	0
K-factor	36	36	36	36
Floor	746.2	750	700	700
Max/Min rating change allowed	155.3	154.4	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	1246.2	1250	1200	1200
New weighted rating	1217.5	1219.7	1200	1200
New weighted performance	1209.4	1207	0	0
Temp new rating	1246.2	1250	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1246.2	1250	1200	1200
New K-factor	36	36	36	36
New floor	746.2	750	700	700

Item	Main	Standard
	0	0
	24	24
	0	0
	0	0
	0	0
	0	0
History	24	24

Games since
	Main 24	Standard 24		Rapid 0		Blitz 0
Gender	Male
Age group	U10
Region	Lejweleputswa (FLW)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	24	11	45.83	-35.4	1258.7	1223.3
Standard	24	11	45.83	-35.4	1258.7	1223.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	24	11	45.83	-35.4	1258.7	1223.3
Standard	24	11	45.83	-35.4	1258.7	1223.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1246.2	1250	1200	1200
2025-09-01	1246.2	1250	1200	1200
2025-08-01	1229.8	1235.4	1200	1200
2025-07-01	1229.8	1235.4	1200	1200
2025-06-01	1229.8	1235.4	1200	1200
2025-05-01	1218	1222.5	1200	1200
2025-04-01	1199.6	1199.5	1200	1200
2025-03-01	1197.4	1196.8	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	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	Free State Closed 2025 (U10 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
2	Spartan Bishops Championships Elite 2025 (U10)	2025-05-23	2025-05-23	Standard	Frances Baard (NCF)	5	5	2	Yes	Analysis
3	Lejweleputswa Chess 4th Qualifying Swiss Open Tournament 2025 (C)	2025-04-12	2025-04-12	Standard	Lejweleputswa (FLW)	5	5	3	Yes	Analysis
4	Lejweleputswa Chess 3rd Qualifying Swiss Open Tournament 2025 (U12)	2025-03-29	2025-03-29	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
5	HTS Welkom Open Chess Tournament 2025 (F)	2025-02-22	2025-02-22	Standard	Lejweleputswa (FLW)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Free State Closed 2025 (U10 Open)	2025-08-14	2025-08-15	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
2	Spartan Bishops Championships Elite 2025 (U10)	2025-05-23	2025-05-23	Standard	Frances Baard (NCF)	5	5	2	Yes	Analysis
3	Lejweleputswa Chess 4th Qualifying Swiss Open Tournament 2025 (C)	2025-04-12	2025-04-12	Standard	Lejweleputswa (FLW)	5	5	3	Yes	Analysis
4	Lejweleputswa Chess 3rd Qualifying Swiss Open Tournament 2025 (U12)	2025-03-29	2025-03-29	Standard	Lejweleputswa (FLW)	5	5	2	Yes	Analysis
5	HTS Welkom Open Chess Tournament 2025 (F)	2025-02-22	2025-02-22	Standard	Lejweleputswa (FLW)	5	4	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament HTS Welkom Open Chess Tournament 2025				Tournament Lejweleputswa Chess 3rd Qualifying Swiss Open Tournament 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-03-29	rnd 2	type Standard	result 1
		Opponent Van Biljon, K (Kian)				Opponent Barnard, L (Leon)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-15	rnd 3	type Standard	result 1	date 2025-08-15	rnd 4	type Standard	result 1
		Opponent Ncamani, M (Mororiseng)				Opponent Thole, V (Vulamazulu)
3	2	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-23	rnd 2	type Standard	result 1	date 2025-05-23	rnd 3	type Standard	result 1
		Opponent Roux, P (Pieter)				Opponent Kruger, A (Abraham Jacobus)

#	Games	Start				End
1	3	Tournament HTS Welkom Open Chess Tournament 2025				Tournament Lejweleputswa Chess 3rd Qualifying Swiss Open Tournament 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-03-29	rnd 2	type Standard	result 1
		Opponent Van Biljon, K (Kian)				Opponent Barnard, L (Leon)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-15	rnd 3	type Standard	result 1	date 2025-08-15	rnd 4	type Standard	result 1
		Opponent Ncamani, M (Mororiseng)				Opponent Thole, V (Vulamazulu)
3	2	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-23	rnd 2	type Standard	result 1	date 2025-05-23	rnd 3	type Standard	result 1
		Opponent Roux, P (Pieter)				Opponent Kruger, A (Abraham Jacobus)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament HTS Welkom Open Chess Tournament 2025				Tournament Lejweleputswa Chess 3rd Qualifying Swiss Open Tournament 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-03-29	rnd 2	type Standard	result 1
		Opponent Van Biljon, K (Kian)				Opponent Barnard, L (Leon)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-15	rnd 3	type Standard	result 1	date 2025-08-15	rnd 4	type Standard	result 1
		Opponent Ncamani, M (Mororiseng)				Opponent Thole, V (Vulamazulu)
3	2	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-23	rnd 2	type Standard	result 1	date 2025-05-23	rnd 3	type Standard	result 1
		Opponent Roux, P (Pieter)				Opponent Kruger, A (Abraham Jacobus)

#	Games	Start				End
1	3	Tournament HTS Welkom Open Chess Tournament 2025				Tournament Lejweleputswa Chess 3rd Qualifying Swiss Open Tournament 2025
		date 2025-02-22	rnd 5	type Standard	result 1	date 2025-03-29	rnd 2	type Standard	result 1
		Opponent Van Biljon, K (Kian)				Opponent Barnard, L (Leon)
2	2	Tournament Free State Closed 2025				Tournament Free State Closed 2025
		date 2025-08-15	rnd 3	type Standard	result 1	date 2025-08-15	rnd 4	type Standard	result 1
		Opponent Ncamani, M (Mororiseng)				Opponent Thole, V (Vulamazulu)
3	2	Tournament Spartan Bishops Championships Elite 2025				Tournament Spartan Bishops Championships Elite 2025
		date 2025-05-23	rnd 2	type Standard	result 1	date 2025-05-23	rnd 3	type Standard	result 1
		Opponent Roux, P (Pieter)				Opponent Kruger, A (Abraham Jacobus)

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	Roux ,P (Pieter)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
1	Roux ,P (Pieter)	4	1198.1	1410.6	4	1197.8	1410.6	0	0	0	0	0	0
2	De Jager ,L (Luado)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	De Jager ,L (Luado)	2	1460.6	1035.6	2	1457.2	1035.6	0	0	0	0	0	0
3	Kakase ,L (Leogo)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Kakase ,L (Leogo)	1	1225.4	800.4	1	1200	800.4	0	0	0	0	0	0
4	Ncamani ,M (Mororiseng)	1	1	425	1	1	425	0	0	0	0	0	0
4	Ncamani ,M (Mororiseng)	1	1209	1634	1	1199.2	1634	0	0	0	0	0	0
5	Modise ,L (Lefa)	1	1	425	1	1	425	0	0	0	0	0	0
5	Modise ,L (Lefa)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Kruger ,T (Thinus Pieter)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Kruger ,T (Thinus Pieter)	1	1556	1131	1	1555.7	1131	0	0	0	0	0	0
7	Barnard ,L (Leon)	1	1	425	1	1	425	0	0	0	0	0	0
7	Barnard ,L (Leon)	1	1250	1675	1	1258.3	1675	0	0	0	0	0	0
8	Ramabusa ,R (Reboloke)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Ramabusa ,R (Reboloke)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Weidemann ,K (Kean)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Weidemann ,K (Kean)	1	1409.3	984.3	1	1408.6	984.3	0	0	0	0	0	0
10	Van Biljon ,K (Kian)	1	1	425	1	1	425	0	0	0	0	0	0
10	Van Biljon ,K (Kian)	1	1200	1625	1	1200	1625	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, J (Jo-Gean)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms