Chess South Africa Ratings Database

PLAYER PAGE

Personal

Korf, R (Ruben)

Chess SA id

199016265

FIDE id

Date of birth

1999-06-14 (Adult)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-04-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1372	1372	1308.9	1304.2
Raw rating	1372	1372	1308.9	1304.2
Weighted rating	1371.8	1371.9	1308.9	1304.2
Weighted performance	0	0	0	0
Floor	872	872	808.9	841.7
K-factor	36	36	36	36
Min/Max rating change allowed	129.8	129.8	142	142.9
Highest rating	1372 2024-02-01	1388.4 2018-03-01	1308.9 2024-02-01	1459.5 2018-01-01
Highest raw rating	1372 2024-02-01	1372 2024-02-01	1308.9 2024-02-01	1341.7 2018-02-01
Highest weighted rating	1370.5 2025-08-01	1370.7 2025-08-01	1308.9 2024-02-01	1341.7 2018-04-01
Highest weighted performance	1358.1 2018-03-01	1388.4 2018-03-01	1200 2024-02-01	1459.5 2018-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1372	1372	1308.9	1304.2
Analysis
Rating	1372	1372	1308.9	1304.2
Raw rating	1372	1372	1308.9	1304.2
Weighted rating	1371.8	1371.9	1308.9
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	872	872	808.9	841.7
Max/Min rating change allowed	129.8	129.8	142	142.9
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	1372	1372	1308.9	1304.2
New weighted rating	1372	1372	1308.9	1304.2
New weighted performance	0	0	0	0
Temp new rating	1372	1372	1308.9	1304.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1372	1372	1308.9	1304.2
New K-factor	36	36	36	36
New floor	872	872	808.9	841.7

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	204	177	11	16

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
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	29	13	44.83	-44	1398.4	1354.4
Standard	13	6.5	50	0	1352.3	1352.3
Rapid	0	0	0	0	0	0
Blitz	16	6.5	40.62	-79.7	1435.9	1356.2

Date	Main	Standard	Rapid	Blitz
2025-11-01	1372	1372	1308.9	1304.2
2025-09-30	1372	1372	1308.9	1304.2
2025-09-01	1372	1372	1308.9	1304.2
2025-08-01	1372	1372	1308.9	1304.2
2025-07-01	1372	1372	1308.9	1304.2
2025-06-01	1372	1372	1308.9	1304.2
2025-05-01	1372	1372	1308.9	1304.2
2025-04-01	1372	1372	1308.9	1304.2
2025-03-01	1372	1372	1308.9	1304.2
2025-02-01	1372	1372	1308.9	1304.2
2025-01-01	1372	1372	1308.9	1304.2
2024-12-01	1372	1372	1308.9	1304.2
2024-11-01	1372	1372	1308.9	1304.2
2024-10-01	1372	1372	1308.9	1304.2
2024-09-01	1372	1372	1308.9	1304.2
2024-08-01	1372	1372	1308.9	1304.2
2024-07-01	1372	1372	1308.9	1304.2
2024-09-01	1372	1372	1308.9	1304.2
2024-05-01	1372	1372	1308.9	1304.2
2024-04-01	1372	1372	1308.9	1304.2
2024-03-01	1372	1372	1308.9	1304.2
2024-02-01	1372	1372	1308.9	1304.2
2024-01-01	1372	1372	1308.9	1304.2
2023-12-01	1326.9	1331.6	1308.9	1292.7

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	King Cars PECC Grand Prix Second Leg 2018	2018-04-14	2018-04-14	Blitz	Nelson Mandela Bay (ENM)	9	9	4	Yes	Analysis
2	King Cars PECC Grand Prix First Leg 2018	2018-03-03	2018-03-10	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
3	South African Junior Blitz 2017 Championships (A)	2018-01-07	2018-01-07	Blitz	4 Knights (4K)	7	7	2.5	Yes	Analysis
4	South African Junior Team Championships 2017 (U20A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	2.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2017 Championships				Tournament King Cars PECC Grand Prix First Leg 2018
		date 2018-01-07	rnd 7	type Blitz	result 1	date 2018-03-03	rnd 2	type Standard	result 0.5
		Opponent Mantje, K (Katleho)				Opponent Nasilowski, R (Rinus)
2	3	Tournament King Cars PECC Grand Prix Second Leg 2018				Tournament King Cars PECC Grand Prix Second Leg 2018
		date 2018-04-14	rnd 5	type Blitz	result 1	date 2018-04-14	rnd 7	type Blitz	result 0.5
		Opponent Holroyd, K (Kea)				Opponent Govindsamy, M (Matthew)
3	3	Tournament King Cars PECC Grand Prix First Leg 2018				Tournament King Cars PECC Grand Prix First Leg 2018
		date 2018-03-10	rnd 4	type Standard	result 1	date 2018-03-10	rnd 6	type Standard	result 1
		Opponent Freeman, V (Vianco)				Opponent Kruger, MJ (Matthew)

#	Games	Start				End
1	3	Tournament King Cars PECC Grand Prix First Leg 2018				Tournament King Cars PECC Grand Prix First Leg 2018
		date 2018-03-10	rnd 4	type Standard	result 1	date 2018-03-10	rnd 6	type Standard	result 1
		Opponent Freeman, V (Vianco)				Opponent Kruger, MJ (Matthew)
2	3	Tournament South African Junior Team Championships 2017				Tournament King Cars PECC Grand Prix First Leg 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-03-03	rnd 2	type Standard	result 0.5
		Opponent Swart, D (Dewald)				Opponent Nasilowski, R (Rinus)
3	1	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-01-05	rnd 4	type Standard	result 1
		Opponent Jordaan, C (Chandre)				Opponent Jordaan, C (Chandre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament King Cars PECC Grand Prix Second Leg 2018				Tournament King Cars PECC Grand Prix Second Leg 2018
		date 2018-04-14	rnd 5	type Blitz	result 1	date 2018-04-14	rnd 7	type Blitz	result 0.5
		Opponent Holroyd, K (Kea)				Opponent Govindsamy, M (Matthew)
2	2	Tournament King Cars PECC Grand Prix Second Leg 2018				Tournament King Cars PECC Grand Prix Second Leg 2018
		date 2018-04-14	rnd 2	type Blitz	result 1	date 2018-04-14	rnd 3	type Blitz	result 0.5
		Opponent Coetzer, Q (Quinn)				Opponent Lagardien, I (Ismaeel)
3	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 7	type Blitz	result 1	date 2018-01-07	rnd 7	type Blitz	result 1
		Opponent Mantje, K (Katleho)				Opponent Mantje, K (Katleho)

#	Games	Start				End
1	3	Tournament South African Junior Blitz 2017 Championships				Tournament King Cars PECC Grand Prix First Leg 2018
		date 2018-01-07	rnd 7	type Blitz	result 1	date 2018-03-03	rnd 1	type Standard	result 1
		Opponent Mantje, K (Katleho)				Opponent Baboo, MS (Muhammad)
2	2	Tournament King Cars PECC Grand Prix Second Leg 2018				Tournament King Cars PECC Grand Prix Second Leg 2018
		date 2018-04-14	rnd 5	type Blitz	result 1	date 2018-04-14	rnd 6	type Blitz	result 1
		Opponent Holroyd, K (Kea)				Opponent Van Der Merwe, G (Gustav)
3	1	Tournament King Cars PECC Grand Prix Second Leg 2018				Tournament King Cars PECC Grand Prix Second Leg 2018
		date 2018-04-14	rnd 2	type Blitz	result 1	date 2018-04-14	rnd 2	type Blitz	result 1
		Opponent Coetzer, Q (Quinn)				Opponent Coetzer, Q (Quinn)

#	Games	Start				End
1	2	Tournament South African Junior Team Championships 2017				Tournament King Cars PECC Grand Prix First Leg 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-03-03	rnd 1	type Standard	result 1
		Opponent Swart, D (Dewald)				Opponent Baboo, MS (Muhammad)
2	1	Tournament King Cars PECC Grand Prix First Leg 2018				Tournament King Cars PECC Grand Prix First Leg 2018
		date 2018-03-10	rnd 6	type Standard	result 1	date 2018-03-10	rnd 6	type Standard	result 1
		Opponent Kruger, MJ (Matthew)				Opponent Kruger, MJ (Matthew)
3	1	Tournament King Cars PECC Grand Prix First Leg 2018				Tournament King Cars PECC Grand Prix First Leg 2018
		date 2018-03-10	rnd 4	type Standard	result 1	date 2018-03-10	rnd 4	type Standard	result 1
		Opponent Freeman, V (Vianco)				Opponent Freeman, V (Vianco)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament King Cars PECC Grand Prix Second Leg 2018				Tournament King Cars PECC Grand Prix Second Leg 2018
		date 2018-04-14	rnd 5	type Blitz	result 1	date 2018-04-14	rnd 6	type Blitz	result 1
		Opponent Holroyd, K (Kea)				Opponent Van Der Merwe, G (Gustav)
2	1	Tournament King Cars PECC Grand Prix Second Leg 2018				Tournament King Cars PECC Grand Prix Second Leg 2018
		date 2018-04-14	rnd 2	type Blitz	result 1	date 2018-04-14	rnd 2	type Blitz	result 1
		Opponent Coetzer, Q (Quinn)				Opponent Coetzer, Q (Quinn)
3	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 7	type Blitz	result 1	date 2018-01-07	rnd 7	type Blitz	result 1
		Opponent Mantje, K (Katleho)				Opponent Mantje, K (Katleho)

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	Nevin ,TW (Tyler William)	2	0.5	-212.5	1	0.5	0	0	0	0	1	0	-425
1	Nevin ,TW (Tyler William)	2	1459.2	1246.7	1	1486.9	1459.2	0	0	0	1	1421.6	1034.2
2	Nasilowski ,R (Rinus)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Nasilowski ,R (Rinus)	1	1650.2	1650.2	1	1642.8	1650.2	0	0	0	0	0	0
3	Steyn ,A (Alicia)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Steyn ,A (Alicia)	1	1396	971	1	1396	971	0	0	0	0	0	0
4	Conradie ,AS (Andre Stephanus)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Conradie ,AS (Andre Stephanus)	1	1879.2	1879.2	1	1879.2	1879.2	0	0	0	0	0	0
5	Schoombie ,V (Vian)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Schoombie ,V (Vian)	1	1412.8	987.8	1	1415.3	987.8	0	0	0	0	0	0
6	Baboo ,MS (Muhammad Saeed)	1	1	425	1	1	425	0	0	0	0	0	0
6	Baboo ,MS (Muhammad Saeed)	1	898.6	1323.6	1	898.6	1323.6	0	0	0	0	0	0
7	Jordaan ,C (Chandre)	1	1	425	1	1	425	0	0	0	0	0	0
7	Jordaan ,C (Chandre)	1	893	1318	1	893	1318	0	0	0	0	0	0
8	Freeman ,V (Vianco)	1	1	425	1	1	425	0	0	0	0	0	0
8	Freeman ,V (Vianco)	1	1049.7	1474.7	1	1057.8	1474.7	0	0	0	0	0	0
9	Van Zyl-Rudd ,J (Jack)	1	0	-425	0	0	0	0	0	0	1	0	-425
9	Van Zyl-Rudd ,J (Jack)	1	2168.8	1743.8	0	0	0	0	0	0	1	2124.4	1743.8
10	Mthunzi ,C (Clive)	1	0	-425	0	0	0	0	0	0	1	0	-425
10	Mthunzi ,C (Clive)	1	1900.6	1475.6	0	0	0	0	0	0	1	1900.6	1475.6

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Korf, R (Ruben)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms