Chess South Africa Ratings Database

PLAYER PAGE

Personal

Wasserman, JF (Johan Frederik)

Chess SA id

190042446

FIDE id

Date of birth

1990-06-09 (Adult)

Gender

Male

Region

Lejweleputswa (FLW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-08-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1914.9	1886.7	1912.1	1846.4
Raw rating	1914.9	1886.7	1912.1	1846.4
Weighted rating	1914.7	1886.5	1912	1846.4
Weighted performance	1106.1	782.5	0	0
Floor	1414.9	1403.5	1412.1	1346.4
K-factor	24	24	24	24
Min/Max rating change allowed	59.9	62.3	60.1	66
Highest rating	1992.9 2019-02-01	1996.1 2019-02-01	1912.1 2024-02-01	1846.4 2018-03-01
Highest raw rating	1914.9 2024-02-01	1903.5 2020-03-01	1912.1 2024-02-01	1846.4 2024-02-01
Highest weighted rating	1913 2025-08-01	1885.1 2025-08-01	1911.5 2025-08-01	1846.4 2018-03-01
Highest weighted performance	1992.9 2019-02-01	1996.1 2019-02-01	1790.9 2023-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1914.9	1886.7	1912.1	1846.4
Analysis
Rating	1914.9	1886.7	1912.1	1846.4
Raw rating	1914.9	1886.7	1912.1	1846.4
Weighted rating	1914.7	1886.5	1912
Weighted performance	1106.1	782.5	0
K-factor	24	24	24	24
Floor	1414.9	1403.5	1412.1	1346.4
Max/Min rating change allowed	59.9	62.3	60.1	66
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	1914.9	1886.7	1912.1	1846.4
New weighted rating	1914.9	1886.7	1912.1	1846.4
New weighted performance	1095.7	772.5	0	0
Temp new rating	1914.9	1886.7	1912.1	1846.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1914.9	1886.7	1912.1	1846.4
New K-factor	24	24	24	24
New floor	1414.9	1403.5	1412.1	1346.4

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	7	0	7
	10	5	5
	5	5	0
History	263	251	12

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Lejweleputswa (FLW)
Province	Free State (FS)
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	101	77.5	76.73	227.2	1597.9	1825.2
Standard	89	66.5	74.72	210.1	1601.3	1811.4
Rapid	12	11	91.67	354.2	1572.9	1927
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1914.9	1886.7	1912.1	1846.4
2025-09-30	1914.9	1886.7	1912.1	1846.4
2025-09-01	1914.9	1886.7	1912.1	1846.4
2025-08-01	1914.9	1886.7	1912.1	1846.4
2025-07-01	1914.9	1886.7	1912.1	1846.4
2025-06-01	1914.9	1886.7	1912.1	1846.4
2025-05-01	1914.9	1886.7	1912.1	1846.4
2025-04-01	1914.9	1886.7	1912.1	1846.4
2025-03-01	1914.9	1886.7	1912.1	1846.4
2025-02-01	1914.9	1886.7	1912.1	1846.4
2025-01-01	1914.9	1886.7	1912.1	1846.4
2024-12-01	1914.9	1886.7	1912.1	1846.4
2024-11-01	1914.9	1886.7	1912.1	1846.4
2024-10-01	1914.9	1886.7	1912.1	1846.4
2024-09-01	1914.9	1886.7	1912.1	1846.4
2024-08-01	1914.9	1886.7	1912.1	1846.4
2024-07-01	1914.9	1886.7	1912.1	1846.4
2024-09-01	1914.9	1886.7	1912.1	1846.4
2024-05-01	1914.9	1886.7	1912.1	1846.4
2024-04-01	1914.9	1886.7	1912.1	1846.4
2024-03-01	1914.9	1886.7	1912.1	1846.4
2024-02-01	1914.9	1886.7	1912.1	1846.4
2024-01-01	1914.9	1886.7	1912.1	1846.4
2023-12-01	1858	1837.6	1896.3	1846.4

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	Kiriakos Michalakis Rapid 2023 (Prestige)	2023-08-05	2023-08-05	Rapid	Mangaung (FMB)	7	7	6	Yes	Analysis
2	DCS Rapid 2022 (A)	2022-10-15	2022-10-15	Rapid	Lejweleputswa (FLW)	5	5	5	Yes	Analysis
3	Kiriakos Michalakis Chess Festival 2022 (A)	2022-09-23	2022-09-23	Standard	Mangaung (FMB)	5	5	4.5	Yes	Analysis
4	2021 Gauteng North Open Tournament (A)	2021-08-28	2021-08-29	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
5	2020 Wynie Robbertse Open Chess Tournament (A)	2020-03-07	2020-03-07	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
6	2020 Waterkloof Open (A)	2020-02-29	2020-03-01	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
7	2020 Piet Robbertse (A)	2020-01-31	2020-02-02	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
8	Morris Club Tournament 2020	2020-02-15	2020-02-15	Standard	Mangaung (FMB)	5	4	4	Yes	Analysis
9	Midvaal Chess Open 2020 (A)	2020-01-25	2020-01-25	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
10	2019 Lardies Open (A)	2019-10-26	2019-10-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
11	Free State Closed 2019 (A)	2019-09-27	2019-09-28	Standard	Mangaung (FMB)	5	5	4.5	Yes	Analysis
12	2019 Kiri Michalakis (A)	2019-09-24	2019-09-24	Standard	Mangaung (FMB)	5	5	4.5	Yes	Analysis
13	Free State Open Tournament 2019 (A)	2019-08-30	2019-08-31	Standard	Mangaung (FMB)	5	5	4.5	Yes	Analysis
14	2019 Capablanca Chess Festival (RR B)	2019-04-18	2019-04-22	Standard	Tshwane (GTP)	9	8	4.5	Yes	Analysis
15	Lejweleputswa 5th Qualifier 2019 (Open)	2019-04-13	2019-04-13	Standard	Lejweleputswa (FLW)	5	5	4	Yes	Analysis
16	Moja Chess Club FIDE Open 2019 (A)	2019-03-21	2019-03-24	Standard	Frances Baard (NCF)	7	7	4.5	Yes	Analysis
17	Lejweleputswa 4th Qualifying Swiss Open Tournament 2019 (A)	2019-03-16	2019-03-16	Standard	Lejweleputswa (FLW)	5	5	4	Yes	Analysis
18	2019 Constantia Park Open (A)	2019-02-09	2019-02-09	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
19	Lejweleputswa 2nd Qualifying Swiss Open Tournament 2019 (A)	2019-01-26	2019-01-26	Standard	Lejweleputswa (FLW)	5	5	5	Yes	Analysis

#	Games	Start				End
1	29	Tournament 2019 Capablanca Chess Festival				Tournament Midvaal Chess Open 2020
		date 2019-04-20	rnd 5	type Standard	result 0.5	date 2020-01-25	rnd 5	type Standard	result 1
		Opponent Smit, D (Devon)				Opponent Theron, A (Andre)
2	15	Tournament Kiriakos Michalakis Chess Festival 2022				Tournament Kiriakos Michalakis Rapid 2023
		date 2022-09-23	rnd 1	type Standard	result 1	date 2023-08-05	rnd 5	type Rapid	result 1
		Opponent Kgang, D (Daniel)				Opponent Vermeulen, GB (George)
3	11	Tournament 2020 Piet Robbertse				Tournament 2020 Waterkloof Open
		date 2020-02-01	rnd 2	type Standard	result 1	date 2020-02-29	rnd 3	type Standard	result 0.5
		Opponent Tissot Van Patot, A (Anton)				Opponent Wolmarans, R (Riekie)

#	Games	Start				End
1	29	Tournament 2019 Capablanca Chess Festival				Tournament Midvaal Chess Open 2020
		date 2019-04-20	rnd 5	type Standard	result 0.5	date 2020-01-25	rnd 5	type Standard	result 1
		Opponent Smit, D (Devon)				Opponent Theron, A (Andre)
2	11	Tournament 2020 Piet Robbertse				Tournament 2020 Waterkloof Open
		date 2020-02-01	rnd 2	type Standard	result 1	date 2020-02-29	rnd 3	type Standard	result 0.5
		Opponent Tissot Van Patot, A (Anton)				Opponent Wolmarans, R (Riekie)
3	9	Tournament 2019 Constantia Park Open				Tournament Moja Chess Club FIDE Open 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-03-21	rnd 1	type Standard	result 1
		Opponent Govender, Y (Yaduvir)				Opponent Flink, M (Michael)

#	Games	Start				End
1	10	Tournament DCS Rapid 2022				Tournament Kiriakos Michalakis Rapid 2023
		date 2022-10-15	rnd 1	type Rapid	result 1	date 2023-08-05	rnd 5	type Rapid	result 1
		Opponent Mangoejane, K (Katleho)				Opponent Vermeulen, GB (George)
2	1	Tournament Kiriakos Michalakis Rapid 2023				Tournament Kiriakos Michalakis Rapid 2023
		date 2023-08-05	rnd 7	type Rapid	result 1	date 2023-08-05	rnd 7	type Rapid	result 1
		Opponent Venter, TG (Tertius)				Opponent Venter, TG (Tertius)

No games found.

#	Games	Start				End

#	Games	Start				End
1	11	Tournament Kiriakos Michalakis Chess Festival 2022				Tournament Kiriakos Michalakis Rapid 2023
		date 2022-09-23	rnd 5	type Standard	result 1	date 2023-08-05	rnd 5	type Rapid	result 1
		Opponent Brink, A (Albertus)				Opponent Vermeulen, GB (George)
2	9	Tournament 2020 Piet Robbertse				Tournament 2020 Waterkloof Open
		date 2020-02-01	rnd 2	type Standard	result 1	date 2020-02-29	rnd 1	type Standard	result 1
		Opponent Tissot Van Patot, A (Anton)				Opponent Nkuna, A (Andrew)
3	6	Tournament Lejweleputswa 2nd Qualifying Swiss Open Tournament 2019				Tournament 2019 Constantia Park Open
		date 2019-01-26	rnd 1	type Standard	result 1	date 2019-02-09	rnd 1	type Standard	result 1
		Opponent Buba, V (Vukile)				Opponent Claassen, J (Jean-Daniel)

#	Games	Start				End
1	9	Tournament 2020 Piet Robbertse				Tournament 2020 Waterkloof Open
		date 2020-02-01	rnd 2	type Standard	result 1	date 2020-02-29	rnd 1	type Standard	result 1
		Opponent Tissot Van Patot, A (Anton)				Opponent Nkuna, A (Andrew)
2	6	Tournament Lejweleputswa 2nd Qualifying Swiss Open Tournament 2019				Tournament 2019 Constantia Park Open
		date 2019-01-26	rnd 1	type Standard	result 1	date 2019-02-09	rnd 1	type Standard	result 1
		Opponent Buba, V (Vukile)				Opponent Claassen, J (Jean-Daniel)
3	4	Tournament 2019 Kiri Michalakis				Tournament Free State Closed 2019
		date 2019-09-24	rnd 4	type Standard	result 1	date 2019-09-27	rnd 2	type Standard	result 1
		Opponent Roberts, TB (Tieho)				Opponent Modirwa, O (Ofentse)

#	Games	Start				End
1	10	Tournament DCS Rapid 2022				Tournament Kiriakos Michalakis Rapid 2023
		date 2022-10-15	rnd 1	type Rapid	result 1	date 2023-08-05	rnd 5	type Rapid	result 1
		Opponent Mangoejane, K (Katleho)				Opponent Vermeulen, GB (George)
2	1	Tournament Kiriakos Michalakis Rapid 2023				Tournament Kiriakos Michalakis Rapid 2023
		date 2023-08-05	rnd 7	type Rapid	result 1	date 2023-08-05	rnd 7	type Rapid	result 1
		Opponent Venter, TG (Tertius)				Opponent Venter, TG (Tertius)

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	Wium ,DJ (Daniel Jacobus)	4	2.5	106.2	3	1.5	0	1	1	425	0	0	0
1	Wium ,DJ (Daniel Jacobus)	4	1914.1	2020.3	3	1913.7	1914.1	1	1904.4	2339.1	0	0	0
2	Mukumbwa ,A (Allen)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	Mukumbwa ,A (Allen)	3	1368.3	1651.6	3	1375.2	1651.6	0	0	0	0	0	0
3	Sisa ,E (Eddy)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
3	Sisa ,E (Eddy)	3	1619.9	1619.9	3	1627.3	1619.9	0	0	0	0	0	0
4	Mwale ,J (Joseph)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Mwale ,J (Joseph)	3	2160.4	2018.7	3	2159	2018.7	0	0	0	0	0	0
5	Stott ,RC (Robert Carl)	2	2	425	2	2	425	0	0	0	0	0	0
5	Stott ,RC (Robert Carl)	2	1625.5	2050.5	2	1623.2	2050.5	0	0	0	0	0	0
6	Tsholo ,B (Boitumelo)	2	2	425	2	2	425	0	0	0	0	0	0
6	Tsholo ,B (Boitumelo)	2	1263.9	1688.9	2	1266.9	1688.9	0	0	0	0	0	0
7	Nkuna ,A (Andrew)	2	2	425	2	2	425	0	0	0	0	0	0
7	Nkuna ,A (Andrew)	2	1508.6	1933.6	2	1512.2	1933.6	0	0	0	0	0	0
8	Fourie ,B (Brandon)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Fourie ,B (Brandon)	2	1656.4	1443.9	2	1664.2	1443.9	0	0	0	0	0	0
9	Choko ,AD (Andile David)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
9	Choko ,AD (Andile David)	2	1767.3	1979.8	2	1762.1	1979.8	0	0	0	0	0	0
10	Jacobs ,CN (Calvin Nicholas)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Jacobs ,CN (Calvin Nicholas)	2	1525.6	1738.1	2	1523.3	1738.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Wasserman, JF (Johan Frederik)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms