Chess South Africa Ratings Database

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Personal

Alberts, JA (Jaco Andre)

Chess SA id

172000404

FIDE id

Date of birth

1972-09-17 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1746.5	1743.9	1812	1812
Raw rating	1746.5	1743.9	1812	1812
Weighted rating	1740.3	1734.9	1812	1812
Weighted performance	1318.7	1324.6	0	0
Floor	1312	1312	1312	1312
K-factor	24	24	24	24
Min/Max rating change allowed	76.1	76.4	69.3	69.3
Highest rating	1812 2018-01-01	1812 2018-01-01	1812 2019-10-01	1812 2019-10-01
Highest raw rating	1812 2018-01-01	1812 2018-01-01	1812 2024-02-01	1812 2024-02-01
Highest weighted rating	1812 2018-01-01	1812 2018-01-01	1812 2019-10-01	1812 2019-10-01
Highest weighted performance	1808.7 2018-05-01	1808.4 2018-05-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1746.5	1743.9	1812	1812
Analysis
Rating	1746.5	1743.9	1812	1812
Raw rating	1746.5	1743.9	1812	1812
Weighted rating	1740.3	1734.9	1812
Weighted performance	1318.7	1324.6	0
K-factor	24	24	24	24
Floor	1312	1312	1312	1312
Max/Min rating change allowed	76.1	76.4	69.3	69.3
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	1746.5	1743.9	1812	1812
New weighted rating	1740.7	1735.5	1812	1812
New weighted performance	1308.8	1314.6	0	0
Temp new rating	1746.5	1743.9	1812	1812
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1746.5	1743.9	1812	1812
New K-factor	24	24	24	24
New floor	1312	1312	1312	1312

Item	Main	Standard	Blitz
	0	0	0
	5	5	0
	10	10	0
	0	0	0
	0	0	0
	0	0	0
History	269	255	14

Games since
	Main 15	Standard 15		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
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	2	40	-85	1874.5	1789.5
Standard	5	2	40	-85	1874.5	1789.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	49	26.5	54.08	34.7	1673.1	1707.8
Standard	49	26.5	54.08	34.7	1673.1	1707.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1746.5	1743.9	1812	1812
2025-09-30	1746.5	1743.9	1812	1812
2025-09-01	1740.9	1735	1812	1812
2025-08-01	1740.9	1735	1812	1812
2025-07-01	1740.9	1735	1812	1812
2025-06-01	1740.9	1735	1812	1812
2025-05-01	1740.9	1735	1812	1812
2025-04-01	1740.9	1735	1812	1812
2025-03-01	1740.9	1735	1812	1812
2025-02-01	1740.8	1735	1812	1812
2025-01-01	1735.3	1729.8	1812	1812
2024-12-01	1735.3	1729.8	1812	1812
2024-11-01	1735.3	1729.8	1812	1812
2024-10-01	1735.3	1729.8	1812	1812
2024-09-01	1735.3	1729.8	1812	1812
2024-08-01	1735.3	1729.8	1812	1812
2024-07-01	1719.4	1710.4	1812	1812
2024-09-01	1719.4	1710.4	1812	1812
2024-05-01	1753.5	1748.1	1812	1812
2024-04-01	1753.5	1748.1	1812	1812
2024-03-01	1753.5	1748.1	1812	1812
2024-02-01	1753.5	1748.1	1812	1812
2024-01-01	1753.5	1748.1	1812	1812
2023-12-01	1753.5	1748.1	1812	1812

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	2025 Centurion Chess Open Tournament (A)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Centurion Chess Open Tournament (A)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2024 Midstream College Open Chess Tournament (A)	2024-07-20	2024-07-20	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
3	2024 Centurion Club Closed Chess Tournament (A)	2024-05-25	2024-05-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
4	2019 Alekhine Open (A)	2019-08-09	2019-08-10	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
5	2019 Swartkop Open (A)	2019-06-15	2019-06-15	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
6	2019 Lubowski Open Tournament (A)	2019-05-11	2019-05-12	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
7	2018 Swartkop Open (A)	2018-06-23	2018-06-23	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
8	2018 Lubowski Open (A)	2018-05-12	2018-05-12	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
9	2018 Chris Greyling Open (A)	2018-04-21	2018-04-21	Standard	Tshwane (GTP)	5	4	1.5	Yes	Analysis
10	2018 Waterkloof Open (A)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	6	Tournament 2018 Chris Greyling Open				Tournament 2018 Lubowski Open
		date 2018-04-21	rnd 5	type Standard	result 1	date 2018-05-12	rnd 5	type Standard	result 1
		Opponent Moche, J (Johannes)				Opponent Jacobs, CL (Cavan)
2	4	Tournament 2018 Swartkop Open				Tournament 2019 Lubowski Open Tournament
		date 2018-06-23	rnd 3	type Standard	result 0.5	date 2019-05-11	rnd 1	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent De Villiers, A (Anri)
3	3	Tournament 2018 Waterkloof Open				Tournament 2018 Waterkloof Open
		date 2018-03-03	rnd 2	type Standard	result 1	date 2018-03-04	rnd 4	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent Mkhaliphi, JT (John)

#	Games	Start				End
1	6	Tournament 2018 Chris Greyling Open				Tournament 2018 Lubowski Open
		date 2018-04-21	rnd 5	type Standard	result 1	date 2018-05-12	rnd 5	type Standard	result 1
		Opponent Moche, J (Johannes)				Opponent Jacobs, CL (Cavan)
2	4	Tournament 2018 Swartkop Open				Tournament 2019 Lubowski Open Tournament
		date 2018-06-23	rnd 3	type Standard	result 0.5	date 2019-05-11	rnd 1	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent De Villiers, A (Anri)
3	3	Tournament 2018 Waterkloof Open				Tournament 2018 Waterkloof Open
		date 2018-03-03	rnd 2	type Standard	result 1	date 2018-03-04	rnd 4	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent Mkhaliphi, JT (John)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2018 Swartkop Open				Tournament 2019 Lubowski Open Tournament
		date 2018-06-23	rnd 4	type Standard	result 1	date 2019-05-11	rnd 1	type Standard	result 1
		Opponent Ngakane, D (Dan)				Opponent De Villiers, A (Anri)
2	3	Tournament 2018 Chris Greyling Open				Tournament 2018 Lubowski Open
		date 2018-04-21	rnd 5	type Standard	result 1	date 2018-05-12	rnd 2	type Standard	result 1
		Opponent Moche, J (Johannes)				Opponent Lata, O (Otshepegile)
3	3	Tournament 2018 Waterkloof Open				Tournament 2018 Waterkloof Open
		date 2018-03-03	rnd 2	type Standard	result 1	date 2018-03-04	rnd 4	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent Mkhaliphi, JT (John)

#	Games	Start				End
1	3	Tournament 2018 Swartkop Open				Tournament 2019 Lubowski Open Tournament
		date 2018-06-23	rnd 4	type Standard	result 1	date 2019-05-11	rnd 1	type Standard	result 1
		Opponent Ngakane, D (Dan)				Opponent De Villiers, A (Anri)
2	3	Tournament 2018 Chris Greyling Open				Tournament 2018 Lubowski Open
		date 2018-04-21	rnd 5	type Standard	result 1	date 2018-05-12	rnd 2	type Standard	result 1
		Opponent Moche, J (Johannes)				Opponent Lata, O (Otshepegile)
3	3	Tournament 2018 Waterkloof Open				Tournament 2018 Waterkloof Open
		date 2018-03-03	rnd 2	type Standard	result 1	date 2018-03-04	rnd 4	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent Mkhaliphi, JT (John)

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	Naidoo ,T (Tashil)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
1	Naidoo ,T (Tashil)	2	1492.6	1705.1	2	1493.4	1705.1	0	0	0	0	0	0
2	Mnguni ,JD (Jakob Dumisani)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Mnguni ,JD (Jakob Dumisani)	2	2181.6	1756.6	2	2186.4	1756.6	0	0	0	0	0	0
3	Smit ,D (Devon)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Smit ,D (Devon)	2	1608.3	1183.3	2	1600.1	1183.3	0	0	0	0	0	0
4	Mwale ,J (Joseph)	2	1	0	2	1	0	0	0	0	0	0	0
4	Mwale ,J (Joseph)	2	2176.5	2176.5	2	2183.3	2176.5	0	0	0	0	0	0
5	Modiselle ,M (Mogomotsi)	2	1	0	2	1	0	0	0	0	0	0	0
5	Modiselle ,M (Mogomotsi)	2	1640.3	1640.3	2	1644.1	1640.3	0	0	0	0	0	0
6	Moche ,J (Johannes)	1	1	425	1	1	425	0	0	0	0	0	0
6	Moche ,J (Johannes)	1	1703.6	2128.6	1	1703.9	2128.6	0	0	0	0	0	0
7	Myburgh ,J (Jacques)	1	1	425	1	1	425	0	0	0	0	0	0
7	Myburgh ,J (Jacques)	1	1499.9	1924.9	1	1493.5	1924.9	0	0	0	0	0	0
8	Grobbelaar ,J (Jacqui)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Grobbelaar ,J (Jacqui)	1	1650.1	1225.1	1	1645.5	1225.1	0	0	0	0	0	0
9	Govender ,Y (Yaduvir)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Govender ,Y (Yaduvir)	1	1751.7	1326.7	1	1757.2	1326.7	0	0	0	0	0	0
10	Nkwe ,O (Omogolo)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Nkwe ,O (Omogolo)	1	1608.3	1183.3	1	1613.3	1183.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Alberts, JA (Jaco Andre)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms