Chess South Africa Ratings Database

PLAYER PAGE

Personal

Weideman, J (Jaco)

Chess SA id

1780143635

FIDE id

Date of birth

1978-02-27 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-07-13

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1253.6	1300	1205.4	1300
Raw rating	1253	1300	1205.2	1300
Weighted rating	1253.6	1299	1205.4	1299
Weighted performance	0	0	0	0
Floor	790.6	800	749.1	800
K-factor	36	36	36	36
Min/Max rating change allowed	153.8	143.8	164.6	143.8
Highest rating	1290.6 2024-02-01	1300 2024-02-01	1249.1 2024-02-01	1300 2024-02-01
Highest raw rating	1290.6 2024-02-01	1300 2024-02-01	1249.1 2024-02-01	1300 2024-02-01
Highest weighted rating	1253 2025-08-01	1296.7 2025-08-01	1249.1 2018-10-01	1296.7 2025-08-01
Highest weighted performance	1200 2020-01-01	1200 2024-02-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.1	0	-0.2	0
New rating	1253.6	1300	1205.2	1300
Analysis
Rating	1253.6	1300	1205.4	1300
Raw rating	1253	1300	1205.2	1300
Weighted rating	1253.6	1299	1205.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	790.6	800	749.1	800
Max/Min rating change allowed	153.8	143.8	164.6	143.8
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	1253	1300	1205.2	1300
New weighted rating	1253.6	1299.7	1205.2	1299.7
New weighted performance	0	0	0	0
Temp new rating	1253.6	1300	1205.2	1300
Temp new rating +/-	-0.1	0	-0.2	0
Final new rating +/-	-0.1	0	-0.2	0
New rating	1253.6	1300	1205.2	1300
New K-factor	36	36	36	36
New floor	790.6	800	749.1	800

Item	Main	Rapid
	0	0
	0	0
	6	6
	5	5
	5	5
	0	0
History	16	16

Games since
	Main 6	Standard 0		Rapid 6		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	5	31.25	-159.4	1204.4	1045.1
Standard	0	0	0	0	0	0
Rapid	16	5	31.25	-159.4	1204.4	1045.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1253	1300	1205.2	1300
2025-09-01	1253	1300	1205.2	1300
2025-08-01	1253	1300	1205.2	1300
2025-07-01	1252.2	1300	1204.7	1300
2025-06-01	1251.3	1300	1204.2	1300
2025-05-01	1250.2	1300	1203.5	1300
2025-04-01	1249	1300	1202.7	1300
2025-03-01	1247.6	1300	1201.7	1300
2025-02-01	1246.1	1300	1199.9	1300
2025-01-01	1242.8	1300	1187.2	1300
2024-12-01	1242.8	1300	1187.2	1300
2024-11-01	1242.8	1300	1187.2	1300
2024-10-01	1242.8	1300	1187.2	1300
2024-09-01	1242.8	1300	1187.2	1300
2024-08-01	1242.8	1300	1187.2	1300
2024-07-01	1290.6	1300	1249.1	1300
2024-06-01	1290.6	1300	1249.1	1300
2024-08-01	1290.6	1300	1249.1	1300
2024-04-01	1290.6	1300	1249.1	1300
2024-03-01	1290.6	1300	1249.1	1300
2024-02-01	1290.6	1300	1249.1	1300
2024-01-01	1290.6	1300	1249.1	1300
2023-12-01	1173.8	1200	1144	1200
2023-11-01	1173.8	1200	1144	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	Curro Durbanville Chess Rapid Open 2024 (Parent)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	1.5	Yes	Analysis
2	Curro Durbanville Chess Open Rapid 2023 (Parents)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	5	2	Yes	Analysis
3	Curro Durbanville Chess Open Rapid 2022 (Parents)	2022-07-02	2022-07-02	Rapid	Cape Town (WCT)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Curro Durbanville Chess Open Rapid 2022				Tournament Curro Durbanville Chess Open Rapid 2023
		date 2022-07-02	rnd 5	type Rapid	result 0.5	date 2023-07-15	rnd 3	type Rapid	result 1
		Opponent Manning, E (Estie)				Opponent Emersleben, D (Danica)
2	1	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 6	type Rapid	result 0.5	date 2024-07-13	rnd 6	type Rapid	result 0.5
		Opponent Whyatt, T (Tessa)				Opponent Whyatt, T (Tessa)
3	1	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 2	type Rapid	result 1	date 2024-07-13	rnd 2	type Rapid	result 1
		Opponent Smit, S (Susanna)				Opponent Smit, S (Susanna)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Curro Durbanville Chess Open Rapid 2022				Tournament Curro Durbanville Chess Open Rapid 2023
		date 2022-07-02	rnd 5	type Rapid	result 0.5	date 2023-07-15	rnd 3	type Rapid	result 1
		Opponent Manning, E (Estie)				Opponent Emersleben, D (Danica)
2	1	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 6	type Rapid	result 0.5	date 2024-07-13	rnd 6	type Rapid	result 0.5
		Opponent Whyatt, T (Tessa)				Opponent Whyatt, T (Tessa)
3	1	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 2	type Rapid	result 1	date 2024-07-13	rnd 2	type Rapid	result 1
		Opponent Smit, S (Susanna)				Opponent Smit, S (Susanna)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament Curro Durbanville Chess Open Rapid 2023
		date 2023-07-15	rnd 2	type Rapid	result 1	date 2023-07-15	rnd 3	type Rapid	result 1
		Opponent Esterhuizen, N (Nolan)				Opponent Emersleben, D (Danica)
2	1	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 2	type Rapid	result 1	date 2024-07-13	rnd 2	type Rapid	result 1
		Opponent Smit, S (Susanna)				Opponent Smit, S (Susanna)
3	1	Tournament Curro Durbanville Chess Open Rapid 2022				Tournament Curro Durbanville Chess Open Rapid 2022
		date 2022-07-02	rnd 1	type Rapid	result 1	date 2022-07-02	rnd 1	type Rapid	result 1
		Opponent Nieuwoudt, E (Elbie)				Opponent Nieuwoudt, E (Elbie)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament Curro Durbanville Chess Open Rapid 2023
		date 2023-07-15	rnd 2	type Rapid	result 1	date 2023-07-15	rnd 3	type Rapid	result 1
		Opponent Esterhuizen, N (Nolan)				Opponent Emersleben, D (Danica)
2	1	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 2	type Rapid	result 1	date 2024-07-13	rnd 2	type Rapid	result 1
		Opponent Smit, S (Susanna)				Opponent Smit, S (Susanna)
3	1	Tournament Curro Durbanville Chess Open Rapid 2022				Tournament Curro Durbanville Chess Open Rapid 2022
		date 2022-07-02	rnd 1	type Rapid	result 1	date 2022-07-02	rnd 1	type Rapid	result 1
		Opponent Nieuwoudt, E (Elbie)				Opponent Nieuwoudt, E (Elbie)

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	Pallav ,K (Kumar)	2	0	-425	0	0	0	2	0	-425	0	0	0
1	Pallav ,K (Kumar)	2	1219.2	794.2	0	0	0	2	1235.1	794.2	0	0	0
2	Smit ,S (Susanna)	1	1	425	0	0	0	1	1	425	0	0	0
2	Smit ,S (Susanna)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
3	Van Der Heyde ,J (Jody)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Van Der Heyde ,J (Jody)	1	1200	775	0	0	0	1	1200	775	0	0	0
4	Akemdien ,M (Mogamat)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Akemdien ,M (Mogamat)	1	1200	775	0	0	0	1	1200	775	0	0	0
5	Whyatt ,T (Tessa)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
5	Whyatt ,T (Tessa)	1	1158.6	1158.6	0	0	0	1	1119	1158.6	0	0	0
6	Koen ,E (Etienne)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Koen ,E (Etienne)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Du Preez ,J (Johan)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Du Preez ,J (Johan)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Manning ,E (Estie)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
8	Manning ,E (Estie)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
9	Esterhuizen ,N (Nolan)	1	1	425	0	0	0	1	1	425	0	0	0
9	Esterhuizen ,N (Nolan)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Solomon ,C (Clinton)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Solomon ,C (Clinton)	1	1303.8	878.8	0	0	0	1	1328.8	878.8	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Weideman, J (Jaco)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms