Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koen, K (Koos)

Chess SA id

1110158776

FIDE id

Date of birth

2011-12-20 (U16)

Gender

Male

Region

Gert Sibande (MGS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1212.9	1200	1222.9	1200
Raw rating	1212.9	1200	1222.9	1200
Weighted rating	1210.8	1200	1220.1	1200
Weighted performance	0	0	0	0
Floor	730.5	700	747.5	700
K-factor	36	36	36	36
Min/Max rating change allowed	162.8	165.8	160.5	165.8
Highest rating	1362.7 2023-07-01	1200 2018-10-01	1440.4 2023-07-01	1200 2018-10-01
Highest raw rating	1230.5 2024-03-01	1200 2024-03-01	1247.5 2024-03-01	1200 2024-03-01
Highest weighted rating	1230.5 2024-08-01	1200 2018-10-01	1247.5 2024-08-01	1200 2018-10-01
Highest weighted performance	1362.7 2023-07-01	1200 2024-03-01	1440.4 2023-07-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1212.9	1200	1222.9	1200
Analysis
Rating	1212.9	1200	1222.9	1200
Raw rating	1212.9	1200	1222.9	1200
Weighted rating	1210.8	1200	1220.1
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	730.5	700	747.5	700
Max/Min rating change allowed	162.8	165.8	160.5	165.8
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	1212.9	1200	1222.9	1200
New weighted rating	1210.6	1200	1219.8	1200
New weighted performance	0	0	0	0
Temp new rating	1212.9	1200	1222.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1212.9	1200	1222.9	1200
New K-factor	36	36	36	36
New floor	730.5	700	747.5	700

Item	Main	Rapid
	0	0
	0	0
	10	10
	9	9
	0	0
	0	0
History	19	19

Games since
	Main 10	Standard 0		Rapid 10		Blitz 0
Gender	Male
Age group	U16
Region	Gert Sibande (MGS)
Province	Mpumalanga (MP)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	19	9	47.37	-22.4	1219.5	1197.1
Standard	0	0	0	0	0	0
Rapid	19	9	47.37	-22.4	1219.5	1197.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1212.9	1200	1222.9	1200
2025-09-01	1212.9	1200	1222.9	1200
2025-08-01	1212.9	1200	1222.9	1200
2025-07-01	1212.9	1200	1222.9	1200
2025-06-01	1212.9	1200	1222.9	1200
2025-05-01	1212.9	1200	1222.9	1200
2025-04-01	1212.9	1200	1222.9	1200
2025-03-01	1212.9	1200	1222.9	1200
2025-02-01	1211.4	1200	1220.8	1200
2025-01-01	1188.8	1200	1189.5	1200
2024-12-01	1188.8	1200	1189.5	1200
2024-11-01	1188.8	1200	1189.5	1200
2024-10-01	1188.8	1200	1189.5	1200
2024-09-01	1188.8	1200	1189.5	1200
2024-08-01	1230.5	1200	1247.5	1200
2024-07-01	1230.5	1200	1247.5	1200
2024-06-01	1230.5	1200	1247.5	1200
2024-08-01	1230.5	1200	1247.5	1200
2024-04-01	1230.5	1200	1247.5	1200
2024-03-01	1230.5	1200	1247.5	1200
2024-02-01	1230.5	1200	1247.5	1200
2024-01-01	1230.5	1200	1247.5	1200
2023-12-01	1230.5	1200	1247.5	1200
2023-11-01	1230.5	1200	1247.5	1200

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	Top Schools Gert Sibande 2024 (U13)	2024-08-16	2024-08-16	Rapid	Gert Sibande (MGS)	5	5	2	Yes	Analysis
2	Govan Mbeki 2024 (U13)	2024-08-02	2024-08-02	Rapid	Gert Sibande (MGS)	5	5	1	Yes	Analysis
3	Govin Mbeki Teams Chess Tournament 2023 (U13 Boys)	2023-08-18	2023-08-18	Rapid	Gert Sibande (MGS)	5	5	3	Yes	Analysis
4	Ho�veldgroep 2023 (O13 B-Spanne)	2023-07-28	2023-07-28	Rapid	Gert Sibande (MGS)	5	4	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Govin Mbeki Teams Chess Tournament 2023				Tournament Govin Mbeki Teams Chess Tournament 2023
		date 2023-08-18	rnd 2	type Rapid	result 1	date 2023-08-18	rnd 4	type Rapid	result 1
		Opponent Cebekhulu, H (Hlelolenkasi)				Opponent Viljoen, F (Fg)
2	3	Tournament Ho�veldgroep 2023				Tournament Ho�veldgroep 2023
		date 2023-07-28	rnd 3	type Rapid	result 1	date 2023-07-28	rnd 5	type Rapid	result 1
		Opponent Wels, J (Juan)				Opponent Magubane, P (Phila)
3	2	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 1	type Rapid	result 1	date 2024-08-16	rnd 2	type Rapid	result 1
		Opponent Mhlambi, T (Themba)				Opponent Mbambo, L (Lukhanyo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Govin Mbeki Teams Chess Tournament 2023				Tournament Govin Mbeki Teams Chess Tournament 2023
		date 2023-08-18	rnd 2	type Rapid	result 1	date 2023-08-18	rnd 4	type Rapid	result 1
		Opponent Cebekhulu, H (Hlelolenkasi)				Opponent Viljoen, F (Fg)
2	3	Tournament Ho�veldgroep 2023				Tournament Ho�veldgroep 2023
		date 2023-07-28	rnd 3	type Rapid	result 1	date 2023-07-28	rnd 5	type Rapid	result 1
		Opponent Wels, J (Juan)				Opponent Magubane, P (Phila)
3	2	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 1	type Rapid	result 1	date 2024-08-16	rnd 2	type Rapid	result 1
		Opponent Mhlambi, T (Themba)				Opponent Mbambo, L (Lukhanyo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Govin Mbeki Teams Chess Tournament 2023				Tournament Govin Mbeki Teams Chess Tournament 2023
		date 2023-08-18	rnd 2	type Rapid	result 1	date 2023-08-18	rnd 4	type Rapid	result 1
		Opponent Cebekhulu, H (Hlelolenkasi)				Opponent Viljoen, F (Fg)
2	3	Tournament Ho�veldgroep 2023				Tournament Ho�veldgroep 2023
		date 2023-07-28	rnd 3	type Rapid	result 1	date 2023-07-28	rnd 5	type Rapid	result 1
		Opponent Wels, J (Juan)				Opponent Magubane, P (Phila)
3	2	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 1	type Rapid	result 1	date 2024-08-16	rnd 2	type Rapid	result 1
		Opponent Mhlambi, T (Themba)				Opponent Mbambo, L (Lukhanyo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Govin Mbeki Teams Chess Tournament 2023				Tournament Govin Mbeki Teams Chess Tournament 2023
		date 2023-08-18	rnd 2	type Rapid	result 1	date 2023-08-18	rnd 4	type Rapid	result 1
		Opponent Cebekhulu, H (Hlelolenkasi)				Opponent Viljoen, F (Fg)
2	3	Tournament Ho�veldgroep 2023				Tournament Ho�veldgroep 2023
		date 2023-07-28	rnd 3	type Rapid	result 1	date 2023-07-28	rnd 5	type Rapid	result 1
		Opponent Wels, J (Juan)				Opponent Magubane, P (Phila)
3	2	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 1	type Rapid	result 1	date 2024-08-16	rnd 2	type Rapid	result 1
		Opponent Mhlambi, T (Themba)				Opponent Mbambo, L (Lukhanyo)

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	Zikalala ,O (Oluhle)	2	0	-425	0	0	0	2	0	-425	0	0	0
1	Zikalala ,O (Oluhle)	2	1179.5	754.5	0	0	0	2	1167.2	754.5	0	0	0
2	Sechaba ,A (Abongile)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Sechaba ,A (Abongile)	2	1342.3	917.3	0	0	0	2	1537.2	917.3	0	0	0
3	Herbst ,A (Anthony)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Herbst ,A (Anthony)	2	1244	819	0	0	0	2	1262.4	819	0	0	0
4	Mahlangu ,B (Bongani)	1	1	425	0	0	0	1	1	425	0	0	0
4	Mahlangu ,B (Bongani)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
5	Van Zyl ,F (Franco)	1	1	425	0	0	0	1	1	425	0	0	0
5	Van Zyl ,F (Franco)	1	1186.7	1611.7	0	0	0	1	1175.5	1611.7	0	0	0
6	Magubane ,P (Phila)	1	1	425	0	0	0	1	1	425	0	0	0
6	Magubane ,P (Phila)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
7	Mhlambi ,T (Themba)	1	1	425	0	0	0	1	1	425	0	0	0
7	Mhlambi ,T (Themba)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Sundstrom ,C (Craig)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Sundstrom ,C (Craig)	1	1235	810	0	0	0	1	1258.8	810	0	0	0
9	Cebekhulu ,H (Hlelolenkasi)	1	1	425	0	0	0	1	1	425	0	0	0
9	Cebekhulu ,H (Hlelolenkasi)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Dangra ,L (Lakshit)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Dangra ,L (Lakshit)	1	1309.3	884.3	0	0	0	1	1353.8	884.3	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Koen, K (Koos)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms