Chess South Africa Ratings Database

PLAYER PAGE

Personal

Korf, A (Arie)

Chess SA id

1870134606

FIDE id

Date of birth

1987-08-13 (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	1255.7	1194.8	1335.9	1287.5
Raw rating	1224.9	1171.8	1335.9	1286
Weighted rating	1255.7	1194.8	1319.5	1287.5
Weighted performance	1140.7	0	0	0
Floor	766.8	720.4	835.9	800
K-factor	36	36	36	36
Min/Max rating change allowed	160	172.6	136.6	146.7
Highest rating	1274.3 2024-09-01	1229.9 2022-02-01	1354.1 2024-09-01	1300 2024-02-01
Highest raw rating	1266.8 2024-09-01	1220.4 2024-09-01	1335.9 2024-11-01	1300 2024-02-01
Highest weighted rating	1256.5 2025-08-01	1220.4 2024-09-01	1308.3 2025-08-01	1286 2025-08-01
Highest weighted performance	1274.3 2024-09-01	1229.9 2022-02-01	1354.1 2024-09-01	1258.6 2024-08-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.2	-2.2	0	-0.1
New rating	1253.4	1192.6	1335.9	1287.5
Analysis
Rating	1255.7	1194.8	1335.9	1287.5
Raw rating	1224.9	1171.8	1335.9	1286
Weighted rating	1255.7	1194.8	1319.5
Weighted performance	1140.7	0	0
K-factor	36	36	36	36
Floor	766.8	720.4	835.9	800
Max/Min rating change allowed	160	172.6	136.6	146.7
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	1224.9	1171.8	1335.9	1286
New weighted rating	1253.4	1192.6	1322.6	1287.5
New weighted performance	1132.9	0	0	0
Temp new rating	1253.4	1192.6	1335.9	1287.5
Temp new rating +/-	-2.2	-2.2	0	-0.1
Final new rating +/-	-2.2	-2.2	0	-0.1
New rating	1253.4	1192.6	1335.9	1287.5
New K-factor	36	36	36	36
New floor	766.8	720.4	835.9	800

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	3	3	0	0
	35	10	18	7
	0	0	0	0
	32	26	6	0
	4	4	0	0
History	74	43	24	7

Games since
	Main 38	Standard 13		Rapid 18		Blitz 7
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	3	0.5	16.67	-283.3	1270.5	987.2
Standard	3	0.5	16.67	-283.3	1270.5	987.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	30.5	41.22	-74.7	1360.1	1285.4
Standard	43	13	30.23	-168	1365.3	1197.2
Rapid	24	14	58.33	70.8	1342.4	1413.2
Blitz	7	3.5	50	0	1388.8	1388.8

Date	Main	Standard	Rapid	Blitz
2025-11-01	1224.9	1171.8	1335.9	1286
2025-09-30	1261.3	1199.5	1335.9	1286
2025-09-01	1261.3	1199.5	1335.9	1286
2025-08-01	1261.3	1199.5	1335.9	1286
2025-07-01	1261.3	1199.5	1335.9	1285.6
2025-06-01	1261.3	1199.5	1335.9	1285.6
2025-05-01	1261.3	1199.5	1335.9	1285.6
2025-04-01	1261.3	1199.5	1335.9	1285.6
2025-03-01	1261.3	1199.5	1335.9	1285.6
2025-02-01	1261.3	1197.8	1335.9	1285.6
2025-01-01	1261.3	1167.1	1335.9	1285.6
2024-12-01	1261.3	1167.1	1335.9	1285.6
2024-11-01	1261.3	1167.1	1335.9	1285.6
2024-10-01	1246.3	1167.1	1328	1285.6
2024-09-01	1266.8	1220.4	1266.4	1285.6
2024-08-01	1263.4	1215	1266.4	1300
2024-07-01	1241.1	1215	1238.7	1300
2024-09-01	1241.1	1215	1238.7	1300
2024-05-01	1241.1	1215	1238.7	1300
2024-04-01	1241.1	1215	1238.7	1300
2024-03-01	1241.1	1215	1238.7	1300
2024-02-01	1241.1	1215	1238.7	1300
2024-01-01	1241.1	1215	1238.7	1300
2023-12-01	1241.1	1215	1235.6	1200

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 (D)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	3	0.5	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 (D)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	3	0.5	Yes	Analysis
2	Laerskool Welgemoed Rapid 2024 (Parents)	2024-10-19	2024-10-19	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
3	CT League 2024 (A)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	6	0	Yes	Analysis
4	Kleinmond Chess Club Open 2024 (Advanced)	2024-09-07	2024-09-07	Rapid	Overberg (WOS)	6	6	4.5	Yes	Analysis
5	2nd Young Minds Classic 2024 (Intermediate)	2024-08-10	2024-08-11	Standard	Cape Town (WCT)	5	4	1.5	Yes	Analysis
6	2nd Young Minds Classic 2024 (Blitz)	2024-08-09	2024-08-09	Blitz	Cape Town (WCT)	7	7	3.5	Yes	Analysis
7	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
8	2022 Western Province Club League (Premier)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	2	0	Yes	Analysis
9	South African Open 2022 (B)	2022-07-09	2022-07-17	Standard	Cape Town (WCT)	11	11	4	Yes	Analysis
10	Curro Durbanville Chess Open Rapid 2022 (A)	2022-07-02	2022-07-02	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
11	ACL Matrix FM Invitational 2022 (Challengers)	2022-06-10	2022-06-12	Standard	Cape Town (WCT)	7	7	2	Yes	Analysis
12	Western Province Open 2022 (Intermediate)	2022-02-26	2022-02-27	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
13	CWP Closed 2021 (Open)	2021-09-18	2021-09-19	Standard	Cape Town (WCT)	6	4	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament Kleinmond Chess Club Open 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-09-07	rnd 1	type Rapid	result 1	date 2024-09-07	rnd 4	type Rapid	result 1
		Opponent Geerlings, WGF (Willem)				Opponent Jayiya, L (Lihle)
2	3	Tournament Western Province Open 2022				Tournament ACL Matrix FM Invitational 2022
		date 2022-02-27	rnd 5	type Standard	result 1	date 2022-06-10	rnd 1	type Standard	result 1
		Opponent Ntengemntu, L (Liyabonga)				Opponent Salimu, C (Chase)
3	3	Tournament CWP Closed 2021				Tournament Western Province Open 2022
		date 2021-09-19	rnd 4	type Standard	result 0.5	date 2022-02-26	rnd 1	type Standard	result 1
		Opponent Desai, H (Harshalkumar)				Opponent Nazo, A (Andisiwe)

#	Games	Start				End
1	3	Tournament Western Province Open 2022				Tournament ACL Matrix FM Invitational 2022
		date 2022-02-27	rnd 5	type Standard	result 1	date 2022-06-10	rnd 1	type Standard	result 1
		Opponent Ntengemntu, L (Liyabonga)				Opponent Salimu, C (Chase)
2	3	Tournament CWP Closed 2021				Tournament Western Province Open 2022
		date 2021-09-19	rnd 4	type Standard	result 0.5	date 2022-02-26	rnd 1	type Standard	result 1
		Opponent Desai, H (Harshalkumar)				Opponent Nazo, A (Andisiwe)
3	2	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-10	rnd 3	type Standard	result 1	date 2024-08-11	rnd 4	type Standard	result 0.5
		Opponent Els, A (Aiden)				Opponent Wilson, EM (Emlyn)

#	Games	Start				End
1	4	Tournament Kleinmond Chess Club Open 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-09-07	rnd 1	type Rapid	result 1	date 2024-09-07	rnd 4	type Rapid	result 1
		Opponent Geerlings, WGF (Willem)				Opponent Jayiya, L (Lihle)
2	3	Tournament Kleinmond Chess Club Open 2024				Tournament Laerskool Welgemoed Rapid 2024
		date 2024-09-07	rnd 6	type Rapid	result 0.5	date 2024-10-19	rnd 2	type Rapid	result 1
		Opponent Laubscher, E (Erick)				Opponent Mnyandu, A (Asanda)
3	2	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 2	type Rapid	result 1
		Opponent Wilson, EM (Emlyn)				Opponent Zheng, Y (Yi)

#	Games	Start				End
1	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 7	type Blitz	result 0.5	date 2024-08-09	rnd 7	type Blitz	result 0.5
		Opponent Ntini, S (Sibusiso)				Opponent Ntini, S (Sibusiso)
2	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 5	type Blitz	result 1	date 2024-08-09	rnd 5	type Blitz	result 1
		Opponent Kala, S (Shivani)				Opponent Kala, S (Shivani)
3	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 3	type Blitz	result 1	date 2024-08-09	rnd 3	type Blitz	result 1
		Opponent Gumbo, N (Nyasha)				Opponent Gumbo, N (Nyasha)

#	Games	Start				End
1	4	Tournament Kleinmond Chess Club Open 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-09-07	rnd 1	type Rapid	result 1	date 2024-09-07	rnd 4	type Rapid	result 1
		Opponent Geerlings, WGF (Willem)				Opponent Jayiya, L (Lihle)
2	3	Tournament Western Province Open 2022				Tournament ACL Matrix FM Invitational 2022
		date 2022-02-27	rnd 5	type Standard	result 1	date 2022-06-10	rnd 1	type Standard	result 1
		Opponent Ntengemntu, L (Liyabonga)				Opponent Salimu, C (Chase)
3	2	Tournament Laerskool Welgemoed Rapid 2024				Tournament Laerskool Welgemoed Rapid 2024
		date 2024-10-19	rnd 1	type Rapid	result 1	date 2024-10-19	rnd 2	type Rapid	result 1
		Opponent Baron, M (Melissa)				Opponent Mnyandu, A (Asanda)

#	Games	Start				End
1	3	Tournament Western Province Open 2022				Tournament ACL Matrix FM Invitational 2022
		date 2022-02-27	rnd 5	type Standard	result 1	date 2022-06-10	rnd 1	type Standard	result 1
		Opponent Ntengemntu, L (Liyabonga)				Opponent Salimu, C (Chase)
2	2	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-13	rnd 7	type Standard	result 1	date 2022-07-15	rnd 8	type Standard	result 1
		Opponent Slippers, S (Sonja)				Opponent Yusuf, Z (Zain)
3	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-10	rnd 3	type Standard	result 1	date 2024-08-10	rnd 3	type Standard	result 1
		Opponent Els, A (Aiden)				Opponent Els, A (Aiden)

#	Games	Start				End
1	4	Tournament Kleinmond Chess Club Open 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-09-07	rnd 1	type Rapid	result 1	date 2024-09-07	rnd 4	type Rapid	result 1
		Opponent Geerlings, WGF (Willem)				Opponent Jayiya, L (Lihle)
2	2	Tournament Laerskool Welgemoed Rapid 2024				Tournament Laerskool Welgemoed Rapid 2024
		date 2024-10-19	rnd 1	type Rapid	result 1	date 2024-10-19	rnd 2	type Rapid	result 1
		Opponent Baron, M (Melissa)				Opponent Mnyandu, A (Asanda)
3	2	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 2	type Rapid	result 1
		Opponent Wilson, EM (Emlyn)				Opponent Zheng, Y (Yi)

#	Games	Start				End
1	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 5	type Blitz	result 1	date 2024-08-09	rnd 5	type Blitz	result 1
		Opponent Kala, S (Shivani)				Opponent Kala, S (Shivani)
2	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 3	type Blitz	result 1	date 2024-08-09	rnd 3	type Blitz	result 1
		Opponent Gumbo, N (Nyasha)				Opponent Gumbo, N (Nyasha)
3	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 1	type Blitz	result 1	date 2024-08-09	rnd 1	type Blitz	result 1
		Opponent Mbamje, M (Myles)				Opponent Mbamje, M (Myles)

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	Salimu ,C (Chase)	3	2	141.7	1	1	425	1	1	425	1	0	-425
1	Salimu ,C (Chase)	3	1636.1	1777.7	1	1569.8	2061.1	1	1546.7	2061.1	1	1198.8	1211.1
2	Wilson ,EM (Emlyn Marissa)	2	1.5	212.5	1	0.5	0	1	1	425	0	0	0
2	Wilson ,EM (Emlyn Marissa)	2	1309.2	1521.8	1	1307	1309.2	1	1417.3	1734.2	0	0	0
3	Desai ,H (Harshalkumar)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Desai ,H (Harshalkumar)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
4	Van Zyl ,A (Albrecht)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Van Zyl ,A (Albrecht)	1	1846.5	1421.5	1	1851.3	1421.5	0	0	0	0	0	0
5	Yusuf ,Z (Zain)	1	1	425	1	1	425	0	0	0	0	0	0
5	Yusuf ,Z (Zain)	1	1406.3	1831.3	1	1399.6	1831.3	0	0	0	0	0	0
6	Mhembere ,M (Munashe)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Mhembere ,M (Munashe)	1	1567.9	1142.9	1	1529.3	1142.9	0	0	0	0	0	0
7	Du Preez ,L (Lienke)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Du Preez ,L (Lienke)	1	1354.7	929.7	1	1364	929.7	0	0	0	0	0	0
8	Mbele ,D (Dumisani)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mbele ,D (Dumisani)	1	1255	830	1	1237.5	830	0	0	0	0	0	0
9	Ntengemntu ,L (Liyabonga)	1	1	425	1	1	425	0	0	0	0	0	0
9	Ntengemntu ,L (Liyabonga)	1	1171.2	1596.2	1	1200	1596.2	0	0	0	0	0	0
10	Ressel ,T (Tane)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Ressel ,T (Tane)	1	1613.9	1188.9	1	1603.8	1188.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Korf, A (Arie)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms