Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Koker, R (Reginald)

Chess SA id

1110117489

FIDE id

Date of birth

2011-04-15 (U16)

Gender

Male

Region

Gert Sibande (MGS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1389.6	1200	1462.5	1200
Raw rating	1389.6	1200	1462.5	1200
Weighted rating	1387.4	1200	1460.3	1200
Weighted performance	1075.6	0	1146.9	0
Floor	889.6	700	962.5	700
K-factor	36	36	32	36
Min/Max rating change allowed	126.6	165.8	114.1	165.8
Highest rating	1534.4 2019-08-01	1200 2018-10-01	1609 2019-08-01	1200 2018-10-01
Highest raw rating	1389.6 2024-09-01	1200 2024-02-01	1462.5 2024-09-01	1200 2024-02-01
Highest weighted rating	1385.8 2025-08-01	1200 2018-10-01	1458.8 2025-08-01	1200 2018-10-01
Highest weighted performance	1534.4 2019-08-01	1200 2024-02-01	1609 2019-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1389.6	1200	1462.5	1200
Analysis
Rating	1389.6	1200	1462.5	1200
Raw rating	1389.6	1200	1462.5	1200
Weighted rating	1387.4	1200	1460.3
Weighted performance	1075.6	0	1146.9
K-factor	36	36	32	36
Floor	889.6	700	962.5	700
Max/Min rating change allowed	126.6	165.8	114.1	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	1389.6	1200	1462.5	1200
New weighted rating	1387.9	1200	1460.8	1200
New weighted performance	1067.5	0	1138.2	0
Temp new rating	1389.6	1200	1462.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1389.6	1200	1462.5	1200
New K-factor	36	36	32	36
New floor	889.6	700	962.5	700

Item	Main	Rapid
	0	0
	0	0
	5	5
	20	20
	14	14
	0	0
History	44	44

Games since
	Main 5	Standard 0		Rapid 5		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	44	34.5	78.41	241.5	1214.9	1456.4
Standard	0	0	0	0	0	0
Rapid	44	34.5	78.41	241.5	1214.9	1456.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1389.6	1200	1462.5	1200
2025-09-30	1389.6	1200	1462.5	1200
2025-09-01	1389.6	1200	1462.5	1200
2025-08-01	1389.6	1200	1462.5	1200
2025-07-01	1389.6	1200	1462.5	1200
2025-06-01	1389.6	1200	1462.5	1200
2025-05-01	1389.6	1200	1462.5	1200
2025-04-01	1389.6	1200	1462.5	1200
2025-03-01	1389.6	1200	1462.5	1200
2025-02-01	1389.6	1200	1462.5	1200
2025-01-01	1389.6	1200	1462.5	1200
2024-12-01	1389.6	1200	1462.5	1200
2024-11-01	1389.6	1200	1462.5	1200
2024-10-01	1389.6	1200	1462.5	1200
2024-09-01	1389.6	1200	1462.5	1200
2024-08-01	1375.1	1200	1448.1	1200
2024-07-01	1375.1	1200	1448.1	1200
2024-09-01	1375.1	1200	1448.1	1200
2024-05-01	1375.1	1200	1448.1	1200
2024-04-01	1375.1	1200	1448.1	1200
2024-03-01	1375.1	1200	1448.1	1200
2024-02-01	1375.1	1200	1448.1	1200
2024-01-01	1375.1	1200	1448.1	1200
2023-12-01	1375.1	1200	1448.1	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	Govan Mbeki 2024 (U13)	2024-08-02	2024-08-02	Rapid	Gert Sibande (MGS)	5	5	4	Yes	Analysis
2	Mpumalanga Final 2023 (U13)	2023-09-02	2023-09-02	Rapid	Gert Sibande (MGS)	5	5	4	Yes	Analysis
3	Govin Mbeki Teams Chess Tournament 2023 (U13 Open)	2023-08-18	2023-08-18	Rapid	Gert Sibande (MGS)	5	5	3.5	Yes	Analysis
4	2023 Gert Sibande League (U13)	2023-08-25	2023-08-25	Rapid	Gert Sibande (MGS)	5	5	4	Yes	Analysis
5	Ho�veldgroep 2023 (O13)	2023-07-28	2023-07-28	Rapid	Gert Sibande (MGS)	5	5	4.5	Yes	Analysis
6	Govan Mbeki Uitspele 2022 (O11)	2022-08-12	2022-08-12	Rapid	Gert Sibande (MGS)	5	5	4	Yes	Analysis
7	Gert Sibande Finaal 2022 (O11)	2022-08-19	2022-08-19	Rapid	Gert Sibande (MGS)	5	5	4	Yes	Analysis
8	Hoeveldgroep 2022 (O11)	2022-07-29	2022-07-29	Rapid	Gert Sibande (MGS)	5	4	1.5	Yes	Analysis
9	Gert Sibande Laerskole Finaal 2019 (O9)	2019-08-02	2019-08-02	Rapid	Gert Sibande (MGS)	5	5	5	Yes	Analysis

#	Games	Start				End
1	10	Tournament Gert Sibande Finaal 2022				Tournament Govin Mbeki Teams Chess Tournament 2023
		date 2022-08-19	rnd 4	type Rapid	result 1	date 2023-08-18	rnd 3	type Rapid	result 1
		Opponent Fourie, J (Janelle)				Opponent Skosana, N (Nhlanhla)
2	7	Tournament Gert Sibande Laerskole Finaal 2019				Tournament Hoeveldgroep 2022
		date 2019-08-02	rnd 1	type Rapid	result 1	date 2022-07-29	rnd 3	type Rapid	result 1
		Opponent Van Niekerk, L (Lohan)				Opponent Ndlovu, S (Sya)
3	6	Tournament Mpumalanga Final 2023				Tournament Govan Mbeki 2024
		date 2023-09-02	rnd 4	type Rapid	result 1	date 2024-08-02	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Logan)				Opponent Daniel, E (Ehren)

No games found.

#	Games	Start				End

#	Games	Start				End
1	10	Tournament Gert Sibande Finaal 2022				Tournament Govin Mbeki Teams Chess Tournament 2023
		date 2022-08-19	rnd 4	type Rapid	result 1	date 2023-08-18	rnd 3	type Rapid	result 1
		Opponent Fourie, J (Janelle)				Opponent Skosana, N (Nhlanhla)
2	7	Tournament Gert Sibande Laerskole Finaal 2019				Tournament Hoeveldgroep 2022
		date 2019-08-02	rnd 1	type Rapid	result 1	date 2022-07-29	rnd 3	type Rapid	result 1
		Opponent Van Niekerk, L (Lohan)				Opponent Ndlovu, S (Sya)
3	6	Tournament Mpumalanga Final 2023				Tournament Govan Mbeki 2024
		date 2023-09-02	rnd 4	type Rapid	result 1	date 2024-08-02	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Logan)				Opponent Daniel, E (Ehren)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Mpumalanga Final 2023				Tournament Govan Mbeki 2024
		date 2023-09-02	rnd 4	type Rapid	result 1	date 2024-08-02	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Logan)				Opponent Daniel, E (Ehren)
2	6	Tournament 2023 Gert Sibande League				Tournament Mpumalanga Final 2023
		date 2023-08-25	rnd 2	type Rapid	result 1	date 2023-09-02	rnd 2	type Rapid	result 1
		Opponent Mkhabela, M (Minenhle)				Opponent Skosana, N (Nhlanhla)
3	5	Tournament Gert Sibande Finaal 2022				Tournament Ho�veldgroep 2023
		date 2022-08-19	rnd 4	type Rapid	result 1	date 2023-07-28	rnd 3	type Rapid	result 1
		Opponent Fourie, J (Janelle)				Opponent Du Preez, J (Jacques)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Mpumalanga Final 2023				Tournament Govan Mbeki 2024
		date 2023-09-02	rnd 4	type Rapid	result 1	date 2024-08-02	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Logan)				Opponent Daniel, E (Ehren)
2	6	Tournament 2023 Gert Sibande League				Tournament Mpumalanga Final 2023
		date 2023-08-25	rnd 2	type Rapid	result 1	date 2023-09-02	rnd 2	type Rapid	result 1
		Opponent Mkhabela, M (Minenhle)				Opponent Skosana, N (Nhlanhla)
3	5	Tournament Gert Sibande Finaal 2022				Tournament Ho�veldgroep 2023
		date 2022-08-19	rnd 4	type Rapid	result 1	date 2023-07-28	rnd 3	type Rapid	result 1
		Opponent Fourie, J (Janelle)				Opponent Du Preez, J (Jacques)

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	Coetzee ,M (Markus)	3	0	-425	0	0	0	3	0	-425	0	0	0
1	Coetzee ,M (Markus)	3	1209.7	784.7	0	0	0	3	1217.3	784.7	0	0	0
2	Skosana ,N (Nhlanhla)	3	3	425	0	0	0	3	3	425	0	0	0
2	Skosana ,N (Nhlanhla)	3	1248.4	1673.4	0	0	0	3	1329.4	1673.4	0	0	0
3	Aucamp ,A (Anru)	2	1	0	0	0	0	2	1	0	0	0	0
3	Aucamp ,A (Anru)	2	1213.3	1213.3	0	0	0	2	1225.4	1213.3	0	0	0
4	Nkosi ,T (Thando)	2	2	425	0	0	0	2	2	425	0	0	0
4	Nkosi ,T (Thando)	2	1189.9	1614.9	0	0	0	2	1182	1614.9	0	0	0
5	Rikhotso ,S (Sungulo)	2	1.5	212.5	0	0	0	2	1.5	212.5	0	0	0
5	Rikhotso ,S (Sungulo)	2	1269.6	1482.1	0	0	0	2	1317.6	1482.1	0	0	0
6	De Graaff ,K (Kian)	2	2	425	0	0	0	2	2	425	0	0	0
6	De Graaff ,K (Kian)	2	1237	1662	0	0	0	2	1261.6	1662	0	0	0
7	Daniel ,E (Ehren)	2	2	425	0	0	0	2	2	425	0	0	0
7	Daniel ,E (Ehren)	2	1249.2	1674.2	0	0	0	2	1280.1	1674.2	0	0	0
8	Verwey ,J (Jayden)	1	1	425	0	0	0	1	1	425	0	0	0
8	Verwey ,J (Jayden)	1	1159.7	1584.7	0	0	0	1	1134.8	1584.7	0	0	0
9	Erasmus ,C (Carli)	1	1	425	0	0	0	1	1	425	0	0	0
9	Erasmus ,C (Carli)	1	1097.5	1522.5	0	0	0	1	896	1522.5	0	0	0
10	Coetzee ,L (Logan)	1	1	425	0	0	0	1	1	425	0	0	0
10	Coetzee ,L (Logan)	1	1174.1	1599.1	0	0	0	1	1154.4	1599.1	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

De Koker, R (Reginald)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms