Chess South Africa Ratings Database

PLAYER PAGE

Personal

Verhoef, J (Jan-Meyer)

Chess SA id

199041499

FIDE id

Date of birth

1999-07-12 (Adult)

Gender

Male

Region

Cape Town (WCT)

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	1838.3	1843.5	1545.1	1596.9
Raw rating	1826	1832.3	1545.1	1596.9
Weighted rating	1838.3	1843.5	1545.1	1593.2
Weighted performance	1548.7	1585.9	0	0
Floor	1360.5	1362.8	1045.1	1096.9
K-factor	24	24	32	32
Min/Max rating change allowed	68	67.4	101.4	94.2
Highest rating	1867.8 2024-09-01	1880.1 2024-09-01	1545.1 2024-02-01	1596.9 2025-04-01
Highest raw rating	1860.5 2024-11-01	1862.8 2024-11-01	1545.1 2024-02-01	1596.9 2025-04-01
Highest weighted rating	1838.3 2025-11-01	1843.5 2025-11-01	1545.1 2024-02-01	1591.7 2025-08-01
Highest weighted performance	1867.8 2024-09-01	1880.1 2024-09-01	1529.6 2019-05-01	1566.2 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	1.2	1.3	0	0
New rating	1839.5	1844.8	1545.1	1596.9
Analysis
Rating	1838.3	1843.5	1545.1	1596.9
Raw rating	1826	1832.3	1545.1	1596.9
Weighted rating	1838.3	1843.5	1545.1
Weighted performance	1548.7	1585.9	0
K-factor	24	24	32	32
Floor	1360.5	1362.8	1045.1	1096.9
Max/Min rating change allowed	68	67.4	101.4	94.2
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	1826	1832.3	1545.1	1596.9
New weighted rating	1839.5	1844.8	1545.1	1593.7
New weighted performance	1538.4	1574.9	0	0
Temp new rating	1839.5	1844.8	1545.1	1596.9
Temp new rating +/-	1.2	1.3	0	0
Final new rating +/-	1.2	1.3	0	0
New rating	1839.5	1844.8	1545.1	1596.9
New K-factor	24	24	32	32
New floor	1360.5	1362.8	1045.1	1096.9

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	14	7	0	7
	34	34	0	0
	9	9	0	0
	16	16	0	0
	5	5	0	0
History	451	397	28	26

Games since
	Main 57	Standard 50		Rapid 0		Blitz 7
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	128		43		37
Male	122		42		36
Adult	89		32		28
Adult Male	86		31		27
Standard
	RSA		Province		Region
Overall	121		38		33
Male	114		37		32
Adult	81		27		25
Adult Male	78		26		24
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	14	7	50	0	1725.2	1725.2
Standard	7	3	42.86	-60.7	1769.1	1708.4
Rapid	0	0	0	0	0	0
Blitz	7	4	57.14	60.7	1681.3	1742
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	149	98.5	66.11	136.9	1609	1745.9
Standard	113	73.5	65.04	127.9	1643.9	1771.8
Rapid	10	7	70	170	1499.9	1669.9
Blitz	26	18	69.23	163.5	1499.3	1662.7

Date	Main	Standard	Rapid	Blitz
2025-11-01	1826	1832.3	1545.1	1596.9
2025-09-30	1856.5	1862.8	1545.1	1596.9
2025-09-01	1856.5	1862.8	1545.1	1596.9
2025-08-01	1856.5	1862.8	1545.1	1596.9
2025-07-01	1856.5	1862.8	1545.1	1596.9
2025-06-01	1856.5	1862.8	1545.1	1596.9
2025-05-01	1856.5	1862.8	1545.1	1596.9
2025-04-01	1856.5	1862.8	1545.1	1596.9
2025-03-01	1860.5	1862.8	1545.1	1588.9
2025-02-01	1860.5	1862.8	1545.1	1588.9
2025-01-01	1860.5	1862.8	1545.1	1588.9
2024-12-01	1860.5	1862.8	1545.1	1588.9
2024-11-01	1860.5	1862.8	1545.1	1588.9
2024-10-01	1859	1860.5	1545.1	1588.9
2024-09-01	1795.4	1801.7	1545.1	1588.9
2024-08-01	1795.4	1801.7	1545.1	1588.9
2024-07-01	1795.4	1801.7	1545.1	1588.9
2024-09-01	1795.4	1801.7	1545.1	1588.9
2024-05-01	1715.9	1723	1545.1	1588.9
2024-04-01	1715.9	1723	1545.1	1588.9
2024-03-01	1715.9	1723	1545.1	1588.9
2024-02-01	1715.9	1723	1545.1	1588.9
2024-01-01	1715.9	1723	1545.1	1588.9
2023-12-01	1707	1710.6	1545.1	1584.1

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 Town Chess Federation Club League 2025 (A)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	7	3	Yes	Analysis
2	Steinitz Festival 2025 (Blitz)	2025-03-14	2025-03-14	Blitz	Cape Town (WCT)	7	7	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (A)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	7	3	Yes	Analysis
2	Steinitz Festival 2025 (Blitz)	2025-03-14	2025-03-14	Blitz	Cape Town (WCT)	7	7	4	Yes	Analysis
3	Western Cape Club Championship 2024 (Tier 2)	2024-10-25	2024-10-27	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
4	2024 Moja Chess Extravaganza (Prestige)	2024-09-25	2024-09-29	Standard	Frances Baard (NCF)	9	9	4.5	Yes	Analysis
5	CT League 2024 (A)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	8	7	Yes	Analysis
6	West Coast & Mykonos Open 2024 (Elite)	2024-05-17	2024-05-19	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
7	Steinitz Chess Festival 2024 (Championship)	2024-05-10	2024-05-12	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
8	2023 USSA Championships (Open)	2023-12-04	2023-12-08	Standard	Ethekwini (KED)	9	9	6.5	Yes	Analysis
9	Ussa Chess Championships 2022 (Open)	2022-12-05	2022-12-09	Standard	Frances Baard (NCF)	9	9	6.5	Yes	Analysis
10	USSA Closed 2022 (Open)	2022-05-13	2022-05-15	Standard	Dr Kenneth Kaunda (NWP)	7	7	4.5	Yes	Analysis
11	2021 Alekhine Open (A)	2021-08-14	2021-08-15	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
12	2020 Wynie Robbertse Open Chess Tournament (A)	2020-03-07	2020-03-07	Standard	Tshwane (GTP)	5	3	1	Yes	Analysis
13	JNW Club - Trinityhouse Little Falls Open 2020 (A)	2020-03-14	2020-03-14	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
14	2019 USSA Championships (Open)	2019-12-02	2019-12-06	Standard	Sarah Baartman (ESB)	9	9	6.5	Yes	Analysis
15	2019 USSA Championships (Blitz)	2019-12-04	2019-12-04	Blitz	Sarah Baartman (ESB)	9	9	7	Yes	Analysis
16	2019 Alekhine Open (A)	2019-08-09	2019-08-10	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
17	Eureka Chess Open 2019 (A)	2019-07-27	2019-07-27	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
18	2019 SWVG Arnold Classic (Rapid Open)	2019-05-18	2019-05-19	Rapid	Tshwane (GTP)	10	10	7	Yes	Analysis
19	2019 SWVG Arnold Classic (Blitz Open)	2019-05-19	2019-05-19	Blitz	Tshwane (GTP)	10	10	7	Yes	Analysis
20	Dirk de Koster Chess Open 2019 (A)	2019-04-13	2019-04-13	Standard	Sedibeng (GSV)	5	5	3.5	Yes	Analysis
21	2019 Hervormde Kerk (Open)	2019-03-09	2019-03-09	Standard	Dr Kenneth Kaunda (NWP)	5	5	5	Yes	Analysis
22	Wesvalia 2019 (A)	2019-02-16	2019-02-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	4.5	Yes	Analysis

#	Games	Start				End
1	12	Tournament Wesvalia 2019				Tournament Dirk de Koster Chess Open 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-04-13	rnd 2	type Standard	result 1
		Opponent Molaolwa, O (O)				Opponent Emanuel, P (Prithee)
2	10	Tournament Ussa Chess Championships 2022				Tournament 2023 USSA Championships
		date 2022-12-05	rnd 1	type Standard	result 1	date 2023-12-04	rnd 1	type Standard	result 1
		Opponent Manyate, F (Freddie)				Opponent Dlamini, R (Reginald)
3	9	Tournament West Coast & Mykonos Open 2024				Tournament CT League 2024
		date 2024-05-19	rnd 6	type Standard	result 1	date 2024-09-07	rnd 11	type Standard	result 1
		Opponent Klaase, S (Shane)				Opponent Mataramvura, S (Sure)

#	Games	Start				End
1	12	Tournament Wesvalia 2019				Tournament Dirk de Koster Chess Open 2019
		date 2019-02-16	rnd 1	type Standard	result 1	date 2019-04-13	rnd 2	type Standard	result 1
		Opponent Molaolwa, O (O)				Opponent Emanuel, P (Prithee)
2	10	Tournament Ussa Chess Championships 2022				Tournament 2023 USSA Championships
		date 2022-12-05	rnd 1	type Standard	result 1	date 2023-12-04	rnd 1	type Standard	result 1
		Opponent Manyate, F (Freddie)				Opponent Dlamini, R (Reginald)
3	9	Tournament West Coast & Mykonos Open 2024				Tournament CT League 2024
		date 2024-05-19	rnd 6	type Standard	result 1	date 2024-09-07	rnd 11	type Standard	result 1
		Opponent Klaase, S (Shane)				Opponent Mataramvura, S (Sure)

#	Games	Start				End
1	5	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 4	type Rapid	result 1	date 2019-05-19	rnd 8	type Rapid	result 1
		Opponent Li, J (Joseph)				Opponent Kgosimotswedi, AM (Aaron)
2	2	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 2	type Rapid	result 1
		Opponent Felix, H (Harrison)				Opponent Letshwenyo, KE (Kebalepile Edwin)
3	1	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 10	type Rapid	result 0.5	date 2019-05-19	rnd 10	type Rapid	result 0.5
		Opponent Ngobeni, V (Vusi)				Opponent Ngobeni, V (Vusi)

#	Games	Start				End
1	7	Tournament 2019 SWVG Arnold Classic				Tournament 2019 USSA Championships
		date 2019-05-19	rnd 10	type Blitz	result 1	date 2019-12-04	rnd 6	type Blitz	result 1
		Opponent Symanowitz, G (Gavin)				Opponent Mnguni, H (Happy)
2	3	Tournament 2019 USSA Championships				Tournament Steinitz Festival 2025
		date 2019-12-04	rnd 9	type Blitz	result 1	date 2025-03-14	rnd 2	type Blitz	result 1
		Opponent Gumede, A (Ayanda)				Opponent Rogov, E (Evgenij)
3	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 6	type Blitz	result 1	date 2019-05-19	rnd 8	type Blitz	result 1
		Opponent Burger, SW (Schalk)				Opponent Ntombela, NL (Lwazi)

#	Games	Start				End
1	7	Tournament 2019 USSA Championships				Tournament 2019 USSA Championships
		date 2019-12-03	rnd 4	type Standard	result 1	date 2019-12-04	rnd 6	type Blitz	result 1
		Opponent Gafane, H (Harry)				Opponent Mnguni, H (Happy)
2	7	Tournament 2019 Hervormde Kerk				Tournament Dirk de Koster Chess Open 2019
		date 2019-03-09	rnd 1	type Standard	result 1	date 2019-04-13	rnd 2	type Standard	result 1
		Opponent Raubenheimer, D (Dian)				Opponent Emanuel, P (Prithee)
3	6	Tournament 2024 Moja Chess Extravaganza				Tournament Western Cape Club Championship 2024
		date 2024-09-28	rnd 8	type Standard	result 1	date 2024-10-26	rnd 4	type Standard	result 1
		Opponent Adamson, LJ (Luke)				Opponent Wu, J (Jason)

#	Games	Start				End
1	7	Tournament 2019 Hervormde Kerk				Tournament Dirk de Koster Chess Open 2019
		date 2019-03-09	rnd 1	type Standard	result 1	date 2019-04-13	rnd 2	type Standard	result 1
		Opponent Raubenheimer, D (Dian)				Opponent Emanuel, P (Prithee)
2	6	Tournament 2024 Moja Chess Extravaganza				Tournament Western Cape Club Championship 2024
		date 2024-09-28	rnd 8	type Standard	result 1	date 2024-10-26	rnd 4	type Standard	result 1
		Opponent Adamson, LJ (Luke)				Opponent Wu, J (Jason)
3	4	Tournament CT League 2024				Tournament CT League 2024
		date 2024-08-17	rnd 5	type Standard	result 1	date 2024-08-24	rnd 8	type Standard	result 1
		Opponent Moodley, Y (Yudhisthira)				Opponent Masinga, A (Ayanda)

#	Games	Start				End
1	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 6	type Rapid	result 1	date 2019-05-19	rnd 8	type Rapid	result 1
		Opponent Phala, AGM (Arthur)				Opponent Kgosimotswedi, AM (Aaron)
2	2	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 2	type Rapid	result 1
		Opponent Felix, H (Harrison)				Opponent Letshwenyo, KE (Kebalepile Edwin)
3	1	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 4	type Rapid	result 1	date 2019-05-18	rnd 4	type Rapid	result 1
		Opponent Li, J (Joseph)				Opponent Li, J (Joseph)

#	Games	Start				End
1	7	Tournament 2019 SWVG Arnold Classic				Tournament 2019 USSA Championships
		date 2019-05-19	rnd 10	type Blitz	result 1	date 2019-12-04	rnd 6	type Blitz	result 1
		Opponent Symanowitz, G (Gavin)				Opponent Mnguni, H (Happy)
2	3	Tournament 2019 USSA Championships				Tournament Steinitz Festival 2025
		date 2019-12-04	rnd 9	type Blitz	result 1	date 2025-03-14	rnd 2	type Blitz	result 1
		Opponent Gumede, A (Ayanda)				Opponent Rogov, E (Evgenij)
3	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 6	type Blitz	result 1	date 2019-05-19	rnd 8	type Blitz	result 1
		Opponent Burger, SW (Schalk)				Opponent Ntombela, NL (Lwazi)

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	Govender ,Y (Yaduvir)	3	1	-141.7	1	0	-425	1	0	-425	1	1	425
1	Govender ,Y (Yaduvir)	3	1799.5	1657.8	1	1937.6	1374.5	1	1283.9	1374.5	1	1459.3	2224.5
2	Lodi ,K (Khotso)	2	2	425	2	2	425	0	0	0	0	0	0
2	Lodi ,K (Khotso)	2	1538.7	1963.7	2	1548.1	1963.7	0	0	0	0	0	0
3	Govender ,S (Shevern)	2	1	0	2	1	0	0	0	0	0	0	0
3	Govender ,S (Shevern)	2	1657.8	1657.8	2	1675.8	1657.8	0	0	0	0	0	0
4	Khumalo ,KB (Keith Babongile)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
4	Khumalo ,KB (Keith Babongile)	2	2125	1912.5	2	2157	1912.5	0	0	0	0	0	0
5	Rogov ,M (Matfey)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Rogov ,M (Matfey)	2	2219.5	2007	2	2328.1	2007	0	0	0	0	0	0
6	Mlahleki ,V (Vusimuzi)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Mlahleki ,V (Vusimuzi)	2	1973.5	1548.5	2	1987.3	1548.5	0	0	0	0	0	0
7	Vundla ,N (Mthandazo)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
7	Vundla ,N (Mthandazo)	2	1733.4	1520.9	2	1725.3	1520.9	0	0	0	0	0	0
8	Dinham ,J (James)	2	1	0	1	1	425	1	0	-425	0	0	0
8	Dinham ,J (James)	2	1767.8	1767.8	1	1936.1	2192.8	1	1484.8	1342.8	0	0	0
9	Masiya ,MA (Mfundo)	2	0	-425	1	0	-425	0	0	0	1	0	-425
9	Masiya ,MA (Mfundo)	2	1981.9	1556.9	1	1975.4	1556.9	0	0	0	1	1919.4	1556.9
10	Nkuna ,MJ (Moeletsi Jason)	2	1	0	1	0	-425	0	0	0	1	1	425
10	Nkuna ,MJ (Moeletsi Jason)	2	1164.6	1164.6	1	1602.8	739.6	0	0	0	1	777.6	1589.6

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Verhoef, J (Jan-Meyer)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms