Chess South Africa Ratings Database

PLAYER PAGE

Personal

Meyer, JJ (Jeffery James)

Chess SA id

155022806

FIDE id

Date of birth

1955-07-30 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1402.5	1404	1284.9	1404
Raw rating	1401.1	1404	1284.9	1404
Weighted rating	1402.5	1403.9	1265.7	1404
Weighted performance	0	0	0	0
Floor	904	904	904	904
K-factor	32	32	32	32
Min/Max rating change allowed	124.5	124	146.9	124
Highest rating	1404 2018-06-01	1404 2018-06-01	1404 2018-06-01	1404 2019-11-01
Highest raw rating	1404 2024-02-01	1404 2024-02-01	1404 2018-01-01	1404 2024-02-01
Highest weighted rating	1404 2018-06-01	1404 2018-06-01	1404 2018-06-01	1404 2019-11-01
Highest weighted performance	1240.5 2018-09-01	1240.8 2018-09-01	1200 2018-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.3	0	0	0
New rating	1402.9	1404	1284.9	1404
Analysis
Rating	1402.5	1404	1284.9	1404
Raw rating	1401.1	1404	1284.9	1404
Weighted rating	1402.5	1403.9	1265.7
Weighted performance	0	0	0
K-factor	32	32	32	32
Floor	904	904	904	904
Max/Min rating change allowed	124.5	124	146.9	124
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	1401.1	1404	1284.9	1404
New weighted rating	1402.9	1404	1267.5	1404
New weighted performance	0	0	0	0
Temp new rating	1402.9	1404	1284.9	1404
Temp new rating +/-	0.3	0	0	0
Final new rating +/-	0.3	0	0	0
New rating	1402.9	1404	1284.9	1404
New K-factor	32	32	32	32
New floor	904	904	904	904

Item	Main	Standard	Rapid
	0	0	0
	6	0	6
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	61	37	24

Games since
	Main 6	Standard 0		Rapid 6		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Winelands (WCW)
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	6	4	66.67	141.7	1237.8	1379.5
Standard	0	0	0	0	0	0
Rapid	6	4	66.67	141.7	1237.8	1379.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	24	11	45.83	-35.4	1244	1208.6
Standard	6	3	50	0	1234.6	1234.6
Rapid	18	8	44.44	-47.2	1247.2	1199.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1401.1	1404	1284.9	1404
2025-09-01	1401.1	1404	1284.9	1404
2025-08-01	1401.1	1404	1284.9	1404
2025-07-01	1404	1404	1260	1404
2025-06-01	1404	1404	1260	1404
2025-05-01	1404	1404	1260	1404
2025-04-01	1404	1404	1260	1404
2025-03-01	1404	1404	1260	1404
2025-02-01	1404	1404	1260	1404
2025-01-01	1404	1404	1260	1404
2024-12-01	1404	1404	1260	1404
2024-11-01	1404	1404	1260	1404
2024-10-01	1404	1404	1260	1404
2024-09-01	1404	1404	1260	1404
2024-08-01	1404	1404	1260	1404
2024-07-01	1404	1404	1260	1404
2024-06-01	1404	1404	1260	1404
2024-08-01	1404	1404	1260	1404
2024-04-01	1404	1404	1260	1404
2024-03-01	1404	1404	1260	1404
2024-02-01	1404	1404	1260	1404
2024-01-01	1404	1404	1260	1404
2023-12-01	1324	1390.9	1260	1404
2023-11-01	1324	1390.9	1260	1404

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	Cape Winelands Open 2025 (Parents+Teachers)	2025-07-19	2025-07-19	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Winelands Open 2025 (Parents+Teachers)	2025-07-19	2025-07-19	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
2	Nelson Mandela Rapid 2019 (Open)	2019-03-02	2019-03-02	Rapid	Cape Town (WCT)	5	5	1	Yes	Analysis
3	Jakes Gerwel Aurecon 2018 (B)	2018-10-13	2018-10-13	Rapid	Cape Town (WCT)	7	7	3	Yes	Analysis
4	2018 Western Province League (C)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	6	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Nelson Mandela Rapid 2019				Tournament Cape Winelands Open 2025
		date 2019-03-02	rnd 5	type Rapid	result 1	date 2025-07-19	rnd 4	type Rapid	result 0.5
		Opponent Maneveld, C (Conrad)				Opponent Oosthuizen, W (Wesley)
2	3	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-09-08	rnd 9	type Standard	result 0.5	date 2018-09-15	rnd 11	type Standard	result 1
		Opponent Sithole, A (Anoona)				Opponent Arendse, K (Kelly)
3	2	Tournament Jakes Gerwel Aurecon 2018				Tournament Jakes Gerwel Aurecon 2018
		date 2018-10-13	rnd 4	type Rapid	result 1	date 2018-10-13	rnd 5	type Rapid	result 1
		Opponent Thabet, A (Abdol)				Opponent Zenzile, A (Amahle)

#	Games	Start				End
1	3	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-09-08	rnd 9	type Standard	result 0.5	date 2018-09-15	rnd 11	type Standard	result 1
		Opponent Sithole, A (Anoona)				Opponent Arendse, K (Kelly)
2	1	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-08-04	rnd 1	type Standard	result 0.5	date 2018-08-04	rnd 1	type Standard	result 0.5
		Opponent Flink, AA (Angelo)				Opponent Flink, AA (Angelo)

#	Games	Start				End
1	5	Tournament Nelson Mandela Rapid 2019				Tournament Cape Winelands Open 2025
		date 2019-03-02	rnd 5	type Rapid	result 1	date 2025-07-19	rnd 4	type Rapid	result 0.5
		Opponent Maneveld, C (Conrad)				Opponent Oosthuizen, W (Wesley)
2	2	Tournament Jakes Gerwel Aurecon 2018				Tournament Jakes Gerwel Aurecon 2018
		date 2018-10-13	rnd 4	type Rapid	result 1	date 2018-10-13	rnd 5	type Rapid	result 1
		Opponent Thabet, A (Abdol)				Opponent Zenzile, A (Amahle)
3	1	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 6	type Rapid	result 0.5	date 2025-07-19	rnd 6	type Rapid	result 0.5
		Opponent Ruiters, C (Celeste)				Opponent Ruiters, C (Celeste)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Nelson Mandela Rapid 2019				Tournament Cape Winelands Open 2025
		date 2019-03-02	rnd 5	type Rapid	result 1	date 2025-07-19	rnd 3	type Rapid	result 1
		Opponent Maneveld, C (Conrad)				Opponent Van Eck, MG (Marius Gerhardt)
2	2	Tournament Jakes Gerwel Aurecon 2018				Tournament Jakes Gerwel Aurecon 2018
		date 2018-10-13	rnd 4	type Rapid	result 1	date 2018-10-13	rnd 5	type Rapid	result 1
		Opponent Thabet, A (Abdol)				Opponent Zenzile, A (Amahle)
3	2	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-09-08	rnd 10	type Standard	result 1	date 2018-09-15	rnd 11	type Standard	result 1
		Opponent Samuels, B (Bradley)				Opponent Arendse, K (Kelly)

#	Games	Start				End
1	2	Tournament 2018 Western Province League				Tournament 2018 Western Province League
		date 2018-09-08	rnd 10	type Standard	result 1	date 2018-09-15	rnd 11	type Standard	result 1
		Opponent Samuels, B (Bradley)				Opponent Arendse, K (Kelly)

#	Games	Start				End
1	4	Tournament Nelson Mandela Rapid 2019				Tournament Cape Winelands Open 2025
		date 2019-03-02	rnd 5	type Rapid	result 1	date 2025-07-19	rnd 3	type Rapid	result 1
		Opponent Maneveld, C (Conrad)				Opponent Van Eck, MG (Marius Gerhardt)
2	2	Tournament Jakes Gerwel Aurecon 2018				Tournament Jakes Gerwel Aurecon 2018
		date 2018-10-13	rnd 4	type Rapid	result 1	date 2018-10-13	rnd 5	type Rapid	result 1
		Opponent Thabet, A (Abdol)				Opponent Zenzile, A (Amahle)
3	1	Tournament Jakes Gerwel Aurecon 2018				Tournament Jakes Gerwel Aurecon 2018
		date 2018-10-13	rnd 2	type Rapid	result 1	date 2018-10-13	rnd 2	type Rapid	result 1
		Opponent Mchontsi, A (Ayabonga)				Opponent Mchontsi, A (Ayabonga)

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	Samuels ,B (Bradley)	1	1	425	1	1	425	0	0	0	0	0	0
1	Samuels ,B (Bradley)	1	1324.4	1749.4	1	1324.4	1749.4	0	0	0	0	0	0
2	Sithole ,A (Anoona)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Sithole ,A (Anoona)	1	1305.2	1305.2	1	1308.1	1305.2	0	0	0	0	0	0
3	Flink ,AA (Angelo Ashley)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Flink ,AA (Angelo Ashley)	1	1573.6	1573.6	1	1573.6	1573.6	0	0	0	0	0	0
4	Jacobs ,A (Adiel)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Jacobs ,A (Adiel)	1	1156.9	731.9	1	1155.7	731.9	0	0	0	0	0	0
5	Van Der Westhuizen ,M (Markus)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Der Westhuizen ,M (Markus)	1	1547.8	1122.8	1	1547.8	1122.8	0	0	0	0	0	0
6	Arendse ,K (Kelly)	1	1	425	1	1	425	0	0	0	0	0	0
6	Arendse ,K (Kelly)	1	500	925	1	500	925	0	0	0	0	0	0
7	Kalala ,A (Alladean)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Kalala ,A (Alladean)	1	1472.5	1047.5	0	0	0	1	1419.5	1047.5	0	0	0
8	Prins ,W (Walter)	1	1	425	0	0	0	1	1	425	0	0	0
8	Prins ,W (Walter)	1	1191.1	1616.1	0	0	0	1	1184.7	1616.1	0	0	0
9	Ruiters ,C (Celeste)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
9	Ruiters ,C (Celeste)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
10	Crotz ,G (Greagan)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Crotz ,G (Greagan)	1	1143	718	0	0	0	1	1129.8	718	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Meyer, JJ (Jeffery James)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms