Chess South Africa Ratings Database

PLAYER PAGE

Personal

Willenberg, A (Athon)

Chess SA id

173042909

FIDE id

Date of birth

1973-10-03 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

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	1792.2	1817.7	1887.3	1782.8
Raw rating	1777.5	1799.2	1886.5	1782.8
Weighted rating	1792.2	1817.7	1887.3	1778.3
Weighted performance	1475.5	1325.7	1196.6	1291.9
Floor	1367.8	1369.8	1389.6	1399
K-factor	24	24	24	24
Min/Max rating change allowed	72.8	70.6	62.4	72.3
Highest rating	1867.8 2018-12-01	1869.8 2024-01-01	1889.6 2024-02-01	2071.3 2018-11-01
Highest raw rating	1867.8 2018-12-01	1869.8 2024-01-01	1889.6 2024-02-01	1899 2018-12-01
Highest weighted rating	1867.8 2019-04-01	1869.8 2019-04-01	1889.6 2025-03-01	1899 2020-02-01
Highest weighted performance	1820.3 2018-11-01	1867.8 2018-03-01	1855.3 2018-11-01	2071.3 2018-11-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.4	-1.6	0	0
New rating	1790.9	1816.1	1887.3	1782.8
Analysis
Rating	1792.2	1817.7	1887.3	1782.8
Raw rating	1777.5	1799.2	1886.5	1782.8
Weighted rating	1792.2	1817.7	1887.3
Weighted performance	1475.5	1325.7	1196.6
K-factor	24	24	24	24
Floor	1367.8	1369.8	1389.6	1399
Max/Min rating change allowed	72.8	70.6	62.4	72.3
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	1777.5	1799.2	1886.5	1782.8
New weighted rating	1790.9	1816.1	1887.3	1778.6
New weighted performance	1466	1316	1186.5	1282.8
Temp new rating	1790.9	1816.1	1887.3	1782.8
Temp new rating +/-	-1.4	-1.6	0	0
Final new rating +/-	-1.4	-1.6	0	0
New rating	1790.9	1816.1	1887.3	1782.8
New K-factor	24	24	24	24
New floor	1367.8	1369.8	1389.6	1399

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	29	9	6	14
	17	8	0	9
	30	12	11	7
	13	13	0	0
	0	0	0	0
History	677	455	97	125

Games since
	Main 57	Standard 21		Rapid 6		Blitz 30
Gender	Male
Age group	Adult
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	167		55		4
Male	160		54		4
Adult	112		40		3
Adult Male	108		39		3
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	56		28		2
Male	54		28		2
Adult	49		24		2
Adult Male	47		24		2


	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	29	17.5	60.34	87.9	1622.5	1710.4
Standard	9	5	55.56	47.2	1545.9	1593.2
Rapid	6	4	66.67	141.7	1686.4	1828.1
Blitz	14	8.5	60.71	91.1	1644.3	1735.4
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	233	141	60.52	89.4	1677.2	1766.6
Standard	82	48	58.54	72.6	1660.1	1732.6
Rapid	82	51.5	62.8	108.8	1675.3	1784.1
Blitz	69	41.5	60.14	86.2	1699.9	1786.2

Date	Main	Standard	Rapid	Blitz
2025-11-01	1777.5	1799.2	1886.5	1782.8
2025-09-30	1794.8	1819.2	1886.5	1782.8
2025-09-01	1794.8	1819.2	1886.5	1782.8
2025-08-01	1794.8	1819.2	1886.5	1782.8
2025-07-01	1794.8	1819	1886	1782.8
2025-06-01	1794.8	1818.7	1885.4	1782.8
2025-05-01	1794.8	1818.2	1884.6	1782.8
2025-04-01	1794.8	1817.6	1882.9	1782.8
2025-03-01	1794.7	1816.6	1889.6	1785
2025-02-01	1792.3	1813.5	1889.6	1782.9
2025-01-01	1790.5	1820.6	1889.6	1767.9
2024-12-01	1790.5	1820.6	1889.6	1767.9
2024-11-01	1790.5	1820.6	1889.6	1767.9
2024-10-01	1790.5	1820.6	1889.6	1767.9
2024-09-01	1790.5	1820.6	1889.6	1767.9
2024-08-01	1790.5	1820.6	1889.6	1767.9
2024-07-01	1790.5	1820.6	1889.6	1767.9
2024-09-01	1790.5	1820.6	1889.6	1767.9
2024-05-01	1790.5	1820.6	1889.6	1767.9
2024-04-01	1790.5	1820.6	1889.6	1767.9
2024-03-01	1790.5	1820.6	1889.6	1767.9
2024-02-01	1790.5	1820.6	1889.6	1767.9
2024-01-01	1850.5	1869.8	1889.6	1828.6
2023-12-01	1805.4	1789.5	1847.4	1828.6

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	0	0	No	Analysis
2	Cape Town Chess Federation Club League 2025 (B)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	3	1	Yes	Analysis
3	Steinitz Festival 2025 (Open)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	6	4	Yes	Analysis
4	Steinitz Festival 2025 (Blitz)	2025-03-14	2025-03-14	Blitz	Cape Town (WCT)	7	7	4	Yes	Analysis
5	Marie Delport Memorial 2025 (Open)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
6	Cape Town Masters Challenge 2025 (Blitz)	2025-01-09	2025-01-09	Blitz	Cape Town (WCT)	7	7	4.5	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	0	0	No	Analysis
2	Cape Town Chess Federation Club League 2025 (B)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	3	1	Yes	Analysis
3	Steinitz Festival 2025 (Open)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	6	4	Yes	Analysis
4	Steinitz Festival 2025 (Blitz)	2025-03-14	2025-03-14	Blitz	Cape Town (WCT)	7	7	4	Yes	Analysis
5	Marie Delport Memorial 2025 (Open)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
6	Cape Town Masters Challenge 2025 (Blitz)	2025-01-09	2025-01-09	Blitz	Cape Town (WCT)	7	7	4.5	Yes	Analysis
7	Cape Town Masters Challenge 2024 (Masters)	2024-01-03	2024-01-07	Standard	Cape Town (WCT)	9	8	2.5	Yes	Analysis
8	Cape Town Chess Club Annual Blitz Championship 2024	2024-01-07	2024-01-07	Blitz	Cape Town (WCT)	9	9	4.5	Yes	Analysis
9	2023 Western Cape Rural Cup (Open)	2023-12-09	2023-12-10	Standard	Cape Winelands (WCW)	5	4	2.5	Yes	Analysis
10	2023 Western Cape Rural Cup (Blitz)	2023-12-08	2023-12-08	Blitz	Cape Winelands (WCW)	7	7	5.5	Yes	Analysis
11	Midas Chess Youth 2023 (Open)	2023-09-09	2023-09-09	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
12	WP Club League 2023 (A)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	2	2	Yes	Analysis
13	Cape Winelands Open 2023 (Championship)	2023-07-22	2023-07-23	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
14	Courtrai Midas Rapid 2023 (Open)	2023-03-04	2023-03-04	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
15	George Open 2022 (A)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	5	3	Yes	Analysis
16	2022 Western Province Club League (B)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	3	3	Yes	Analysis
17	Steinitz Open 2022 (C)	2022-05-21	2022-05-22	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
18	Drakenstein Pioneers Inaugural 2020 (A)	2020-03-14	2020-03-14	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
19	Paul Roos Blitz 2020	2020-02-22	2020-02-22	Blitz	Cape Winelands (WCW)	9	9	6	Yes	Analysis
20	Nelson Mandela Rapid 2020 (Open)	2020-02-01	2020-02-01	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
21	2019 Western Province League (Premier)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	9	3.5	Yes	Analysis
22	Condorgreen Mitchell`s Plain Chess Open Tournament 2019	2019-06-01	2019-06-02	Rapid	Cape Town (WCT)	9	9	6.5	Yes	Analysis
23	South African Open Chess Championships 2019 (A)	2019-06-15	2019-06-22	Standard	Frances Baard (NCF)	9	9	5.5	Yes	Analysis
24	South African Open Chess Championships 2019 (Rapid)	2019-06-17	2019-06-17	Rapid	Frances Baard (NCF)	5	5	3	Yes	Analysis
25	Steinitz Chess Festival 2019 (A)	2019-04-05	2019-04-07	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
26	West Coast Open 2019 (A)	2019-04-27	2019-04-27	Standard	West Coast (WCU)	5	5	4	Yes	Analysis
27	2019 Cape Town Classic Chess Festival (Rapid)	2019-03-30	2019-03-30	Rapid	Cape Town (WCT)	7	6	3	Yes	Analysis
28	2019 Cape Town Classic Chess Festival (Blitz)	2019-03-29	2019-03-29	Blitz	Cape Town (WCT)	9	9	6	Yes	Analysis
29	Paul Roos Blitz 2019	2019-02-23	2019-02-23	Blitz	Cape Winelands (WCW)	9	9	6	Yes	Analysis
30	Drakenstein Dragons Rapid 2019 (Open)	2019-01-19	2019-01-19	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
31	Graham Solomon Memorial 2018 (Rapid)	2018-11-24	2018-11-24	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
32	Graham Solomon Memorial 2018 (Blitz)	2018-11-25	2018-11-25	Blitz	Cape Town (WCT)	12	12	5	Yes	Analysis
33	Jakes Gerwel Aurecon 2018 (Prestige)	2018-10-13	2018-10-13	Rapid	Cape Town (WCT)	7	7	4	Yes	Analysis
34	Eldo Smart Memorial Rapid Tournament 2018	2018-06-16	2018-06-16	Rapid	Cape Town (WCT)	7	7	5	Yes	Analysis
35	Drakenstein Dragons Rapid 2018 (Open)	2018-06-09	2018-06-09	Rapid	Cape Winelands (WCW)	7	7	4.5	Yes	Analysis
36	2018 Steinitz Chess Festival (Prestige)	2018-03-21	2018-03-25	Standard	Cape Town (WCT)	7	6	3	Yes	Analysis
37	Mandela Drakenstein Mgt Area Rapid Chess 2018 (Open)	2018-02-03	2018-02-03	Rapid	Cape Winelands (WCW)	7	6	3	Yes	Analysis

#	Games	Start				End
1	10	Tournament WP Club League 2023				Tournament 2023 Western Cape Rural Cup
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-12-08	rnd 3	type Blitz	result 1
		Opponent Williams, E (Enrico)				Opponent Basson, JE (Jacques)
2	10	Tournament Steinitz Open 2022				Tournament George Open 2022
		date 2022-05-21	rnd 1	type Standard	result 1	date 2022-12-03	rnd 2	type Standard	result 1
		Opponent Sihamba, S (Somila)				Opponent Johnson, A (Azriel)
3	8	Tournament West Coast Open 2019				Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019
		date 2019-04-27	rnd 1	type Standard	result 1	date 2019-06-01	rnd 3	type Rapid	result 0.5
		Opponent Titus, D (Dominique)				Opponent Gluckman, P (Paul)

#	Games	Start				End
1	10	Tournament Steinitz Open 2022				Tournament George Open 2022
		date 2022-05-21	rnd 1	type Standard	result 1	date 2022-12-03	rnd 2	type Standard	result 1
		Opponent Sihamba, S (Somila)				Opponent Johnson, A (Azriel)
2	6	Tournament West Coast Open 2019				Tournament South African Open Chess Championships 2019
		date 2019-04-27	rnd 1	type Standard	result 1	date 2019-06-15	rnd 1	type Standard	result 1
		Opponent Titus, D (Dominique)				Opponent Ahjum, SHA (Savannah)
3	5	Tournament 2019 Western Province League				Tournament Drakenstein Pioneers Inaugural 2020
		date 2019-08-24	rnd 9	type Standard	result 1	date 2020-03-14	rnd 2	type Standard	result 1
		Opponent Blaauw, GM (Gavin)				Opponent Africa, G (Gillmore)

#	Games	Start				End
1	8	Tournament Courtrai Midas Rapid 2023				Tournament Steinitz Festival 2025
		date 2023-03-04	rnd 6	type Rapid	result 1	date 2025-03-15	rnd 2	type Rapid	result 1
		Opponent Willenberg, GI (Glen)				Opponent Gaffoor, E (Eesa)
2	6	Tournament 2019 Cape Town Classic Chess Festival				Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019
		date 2019-03-30	rnd 5	type Rapid	result 1	date 2019-06-01	rnd 3	type Rapid	result 0.5
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Gluckman, P (Paul)
3	4	Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019				Tournament South African Open Chess Championships 2019
		date 2019-06-02	rnd 9	type Rapid	result 1	date 2019-06-17	rnd 3	type Rapid	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Lewis, MMM (Mark)

#	Games	Start				End
1	6	Tournament 2019 Cape Town Classic Chess Festival				Tournament Paul Roos Blitz 2020
		date 2019-03-29	rnd 8	type Blitz	result 1	date 2020-02-22	rnd 4	type Blitz	result 1
		Opponent Aguirre, B (Bryan)				Opponent Geyser, G (Gavin)
2	4	Tournament Cape Town Masters Challenge 2025				Tournament Steinitz Festival 2025
		date 2025-01-09	rnd 5	type Blitz	result 0.5	date 2025-03-14	rnd 1	type Blitz	result 1
		Opponent Williams, E (Elegeaux)				Opponent Mahomed, A (Amaan)
3	4	Tournament 2023 Western Cape Rural Cup				Tournament Cape Town Chess Club Annual Blitz Championship 2024
		date 2023-12-08	rnd 5	type Blitz	result 1	date 2024-01-07	rnd 1	type Blitz	result 1
		Opponent Kariem, S (Shakir)				Opponent Gluckman, L (Levi)

#	Games	Start				End
1	10	Tournament WP Club League 2023				Tournament 2023 Western Cape Rural Cup
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-12-08	rnd 3	type Blitz	result 1
		Opponent Williams, E (Enrico)				Opponent Basson, JE (Jacques)
2	10	Tournament Steinitz Open 2022				Tournament George Open 2022
		date 2022-05-21	rnd 1	type Standard	result 1	date 2022-12-03	rnd 2	type Standard	result 1
		Opponent Sihamba, S (Somila)				Opponent Johnson, A (Azriel)
3	4	Tournament Cape Town Masters Challenge 2025				Tournament Marie Delport Memorial 2025
		date 2025-01-09	rnd 6	type Blitz	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Claassen, SM (Stephanus Meyer)				Opponent Johannes, L (Llewellyn)

#	Games	Start				End
1	10	Tournament Steinitz Open 2022				Tournament George Open 2022
		date 2022-05-21	rnd 1	type Standard	result 1	date 2022-12-03	rnd 2	type Standard	result 1
		Opponent Sihamba, S (Somila)				Opponent Johnson, A (Azriel)
2	4	Tournament Cape Town Masters Challenge 2024				Tournament Marie Delport Memorial 2025
		date 2024-01-06	rnd 8	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Bell, L (Luke)				Opponent Johannes, L (Llewellyn)
3	3	Tournament WP Club League 2023				Tournament 2023 Western Cape Rural Cup
		date 2023-07-29	rnd 1	type Standard	result 1	date 2023-12-09	rnd 1	type Standard	result 1
		Opponent Williams, E (Enrico)				Opponent De Vries, C (Cheslin)

#	Games	Start				End
1	8	Tournament Courtrai Midas Rapid 2023				Tournament Steinitz Festival 2025
		date 2023-03-04	rnd 6	type Rapid	result 1	date 2025-03-15	rnd 2	type Rapid	result 1
		Opponent Willenberg, GI (Glen)				Opponent Gaffoor, E (Eesa)
2	4	Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019				Tournament South African Open Chess Championships 2019
		date 2019-06-02	rnd 9	type Rapid	result 1	date 2019-06-17	rnd 3	type Rapid	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Lewis, MMM (Mark)
3	3	Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019				Tournament Condorgreen Mitchell`s Plain Chess Open Tournament 2019
		date 2019-06-01	rnd 5	type Rapid	result 1	date 2019-06-02	rnd 7	type Rapid	result 1
		Opponent Lentit, G (Gershwin)				Opponent Goredema, D (Dione)

#	Games	Start				End
1	6	Tournament 2019 Cape Town Classic Chess Festival				Tournament Paul Roos Blitz 2020
		date 2019-03-29	rnd 8	type Blitz	result 1	date 2020-02-22	rnd 4	type Blitz	result 1
		Opponent Aguirre, B (Bryan)				Opponent Geyser, G (Gavin)
2	3	Tournament Cape Town Masters Challenge 2025				Tournament Steinitz Festival 2025
		date 2025-01-09	rnd 6	type Blitz	result 1	date 2025-03-14	rnd 1	type Blitz	result 1
		Opponent Claassen, SM (Stephanus Meyer)				Opponent Mahomed, A (Amaan)
3	3	Tournament 2023 Western Cape Rural Cup				Tournament 2023 Western Cape Rural Cup
		date 2023-12-08	rnd 1	type Blitz	result 1	date 2023-12-08	rnd 3	type Blitz	result 1
		Opponent Africa, L (Lindsay)				Opponent Basson, JE (Jacques)

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	Willenberg ,KS (Kenneth Sean)	9	1.5	-283.3	2	0.5	-212.5	3	1	-141.7	4	0	-425
1	Willenberg ,KS (Kenneth Sean)	9	1955.8	1672.5	2	1988.3	1743.3	3	2011.8	1814.1	4	2005.2	1530.8
2	Mncwabe ,M (Minenhle Junior)	4	4	425	1	1	425	2	2	425	1	1	425
2	Mncwabe ,M (Minenhle Junior)	4	1710.8	2135.8	1	1718.7	2135.8	2	1671.9	2135.8	1	1589.6	2135.8
3	Amini ,D (Daud)	4	0	-425	0	0	0	3	0	-425	1	0	-425
3	Amini ,D (Daud)	4	2070.9	1645.9	0	0	0	3	2096.7	1645.9	1	2082.2	1645.9
4	Erlank ,WK (Warrick)	3	1	-141.7	1	0	-425	1	0	-425	1	1	425
4	Erlank ,WK (Warrick)	3	2060.3	1918.6	1	2096.9	1635.3	1	2140.7	1635.3	1	2046.3	2485.3
5	De Jager ,LJ (Luan Johannes)	3	1.5	0	1	0	-425	1	1	425	1	0.5	0
5	De Jager ,LJ (Luan Johannes)	3	1850.4	1850.4	1	1884	1425.4	1	1846.8	2275.4	1	1837.7	1850.4
6	Salimu ,R (Reuben)	3	0	-425	1	0	-425	1	0	-425	1	0	-425
6	Salimu ,R (Reuben)	3	1929.1	1504.1	1	1912.8	1504.1	1	1955.6	1504.1	1	1893.3	1504.1
7	Goredema ,D (Dione)	3	1.5	0	1	0.5	0	1	1	425	1	0	-425
7	Goredema ,D (Dione)	3	1784.1	1784.1	1	1761.9	1784.1	1	1774.6	2209.1	1	1822.8	1359.1
8	Bhawoodien ,SH (Shabier Husain)	3	1	-141.7	0	0	0	3	1	-141.7	0	0	0
8	Bhawoodien ,SH (Shabier Husain)	3	2083.5	1941.9	0	0	0	3	2085.5	1941.9	0	0	0
9	Lewis ,MMM (Mark Martin)	3	3	425	0	0	0	2	2	425	1	1	425
9	Lewis ,MMM (Mark Martin)	3	1918.4	2343.4	0	0	0	2	2013.2	2343.4	1	1842	2343.4
10	De Villiers ,CCA (Charles)	3	0	-425	0	0	0	2	0	-425	1	0	-425
10	De Villiers ,CCA (Charles)	3	2212.3	1787.3	0	0	0	2	2241.9	1787.3	1	2255	1787.3

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Willenberg, A (Athon)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms