Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Koker, D (Dillan)

Chess SA id

1060133461

FIDE id

Date of birth

2006-08-07 (U20)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-02-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1216.1	1180.2	1224.9	1200
Raw rating	1216.1	1180.2	1224.9	1200
Weighted rating	1216.1	1180.2	1224.9	1200
Weighted performance	776.2	709.2	750.6	0
Floor	718	700	724.9	700
K-factor	36	36	36	36
Min/Max rating change allowed	162.1	170.6	160	165.8
Highest rating	1234.8 2022-12-01	1200 2018-10-01	1224.9 2024-02-01	1200 2018-10-01
Highest raw rating	1218 2023-01-01	1200 2019-12-01	1224.9 2024-02-01	1200 2024-02-01
Highest weighted rating	1218 2025-02-01	1200 2018-10-01	1224.9 2025-02-01	1200 2018-10-01
Highest weighted performance	1234.8 2022-12-01	1200 2019-12-01	1203.4 2022-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1216.1	1180.2	1224.9	1200
Analysis
Rating	1216.1	1180.2	1224.9	1200
Raw rating	1216.1	1180.2	1224.9	1200
Weighted rating	1216.1	1180.2	1224.9
Weighted performance	776.2	709.2	750.6
K-factor	36	36	36	36
Floor	718	700	724.9	700
Max/Min rating change allowed	162.1	170.6	160	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	1216.1	1180.2	1224.9	1200
New weighted rating	1216.1	1180.2	1224.9	1200
New weighted performance	775.8	708.8	750.2	0
Temp new rating	1216.1	1180.2	1224.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1216.1	1180.2	1224.9	1200
New K-factor	36	36	36	36
New floor	718	700	724.9	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	9	4	5
	41	22	19
	0	0	0
History	55	26	29

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	55	24	43.64	-54.1	1211.8	1157.7
Standard	26	10	38.46	-98.1	1198.7	1100.6
Rapid	29	14	48.28	-14.7	1223.6	1208.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1216.1	1180.2	1224.9	1200
2025-09-01	1216.1	1180.2	1224.9	1200
2025-08-01	1216.1	1180.2	1224.9	1200
2025-07-01	1216.1	1180.2	1224.9	1200
2025-06-01	1216.1	1180.2	1224.9	1200
2025-05-01	1216.1	1180.2	1224.9	1200
2025-04-01	1216.1	1180.2	1224.9	1200
2025-03-01	1216.1	1180.2	1224.9	1200
2025-02-01	1216.1	1180.2	1224.9	1200
2025-01-01	1216.1	1180.2	1224.9	1200
2024-12-01	1216.1	1180.2	1224.9	1200
2024-11-01	1216.1	1180.2	1224.9	1200
2024-10-01	1216.1	1180.2	1224.9	1200
2024-09-01	1216.1	1180.2	1224.9	1200
2024-08-01	1216.1	1180.2	1224.9	1200
2024-07-01	1216.1	1180.2	1224.9	1200
2024-06-01	1216.1	1180.2	1224.9	1200
2024-08-01	1216.1	1180.2	1224.9	1200
2024-04-01	1216.1	1180.2	1224.9	1200
2024-03-01	1216.1	1180.2	1224.9	1200
2024-02-01	1216.1	1180.2	1224.9	1200
2024-01-01	1216.1	1180.2	1224.9	1200
2023-12-01	1216.1	1180.2	1224.9	1200
2023-11-01	1216.1	1180.2	1224.9	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	Langeberg Schools Chess Trials 2023 (U17 Boys+Girls)	2023-02-11	2023-02-11	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	Cape Winelands Schools Chess - Trials 1 2023 (U17 Boys)	2023-02-25	2023-02-25	Standard	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis
3	McGregor Chess December Festival 2022	2022-12-10	2022-12-10	Standard	Cape Winelands (WCW)	4	4	2.5	Yes	Analysis
4	Robertson Strategema Club 2022 (U19)	2022-10-29	2022-10-29	Standard	Cape Winelands (WCW)	5	4	3	Yes	Analysis
5	Strategema 2022 (U17)	2022-09-10	2022-09-10	Standard	Cape Winelands (WCW)	5	4	1	Yes	Analysis
6	McGregor Open 2022 (A)	2022-06-11	2022-06-11	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
7	Strategema Chess Festival 2022 (U18 Open)	2022-05-14	2022-05-14	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
8	McGregor Chess Freedom Day Rapid 2022 (U15+U18)	2022-04-27	2022-04-27	Rapid	Cape Winelands (WCW)	5	4	2	Yes	Analysis
9	McGregor Kings Chess Festival 2022 (U15+U18)	2022-04-09	2022-04-09	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
10	Cape Winelands Schools 2022 (U18 Boys)	2022-03-05	2022-03-05	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
11	Lanfeberg Schools Chess Trials 2022 (U18)	2022-02-26	2022-02-26	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
12	Robertson Chess 2020 (U15)	2020-03-07	2020-03-07	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament McGregor Chess December Festival 2022				Tournament Langeberg Schools Chess Trials 2023
		date 2022-12-10	rnd 3	type Standard	result 1	date 2023-02-11	rnd 1	type Rapid	result 1
		Opponent Van Wyk, I (Igshaan)				Opponent Morris, C (Cayden)
2	3	Tournament McGregor Kings Chess Festival 2022				Tournament McGregor Chess Freedom Day Rapid 2022
		date 2022-04-09	rnd 4	type Rapid	result 1	date 2022-04-27	rnd 1	type Rapid	result 1
		Opponent Chamba, R (Ruvarashe Sharon)				Opponent Snyman, C (Cradwin)
3	2	Tournament Robertson Strategema Club 2022				Tournament McGregor Chess December Festival 2022
		date 2022-10-29	rnd 5	type Standard	result 1	date 2022-12-10	rnd 1	type Standard	result 1
		Opponent Van Der Westhuizen, D (Dawid)				Opponent Erasmus, M (Maxwell)

#	Games	Start				End
1	2	Tournament McGregor Chess December Festival 2022				Tournament McGregor Chess December Festival 2022
		date 2022-12-10	rnd 3	type Standard	result 1	date 2022-12-10	rnd 4	type Standard	result 0.5
		Opponent Van Wyk, I (Igshaan)				Opponent Oostendorff, J (Juandre Keith)
2	2	Tournament Robertson Strategema Club 2022				Tournament McGregor Chess December Festival 2022
		date 2022-10-29	rnd 5	type Standard	result 1	date 2022-12-10	rnd 1	type Standard	result 1
		Opponent Van Der Westhuizen, D (Dawid)				Opponent Erasmus, M (Maxwell)
3	2	Tournament Robertson Strategema Club 2022				Tournament Robertson Strategema Club 2022
		date 2022-10-29	rnd 2	type Standard	result 1	date 2022-10-29	rnd 3	type Standard	result 1
		Opponent Du Plessis, J (Jahmal)				Opponent Cupido, M (Martin)

#	Games	Start				End
1	3	Tournament McGregor Kings Chess Festival 2022				Tournament McGregor Chess Freedom Day Rapid 2022
		date 2022-04-09	rnd 4	type Rapid	result 1	date 2022-04-27	rnd 1	type Rapid	result 1
		Opponent Chamba, R (Ruvarashe Sharon)				Opponent Snyman, C (Cradwin)
2	2	Tournament Strategema Chess Festival 2022				Tournament Strategema Chess Festival 2022
		date 2022-05-14	rnd 1	type Rapid	result 1	date 2022-05-14	rnd 2	type Rapid	result 1
		Opponent Du Plessis, J (Jahmal)				Opponent Visagie, J (Jermaine Franko)
3	2	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 3	type Rapid	result 1	date 2022-02-26	rnd 4	type Rapid	result 1
		Opponent Jacobs, C (Caley-Ann)				Opponent De Wet, C (Christiaan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament McGregor Kings Chess Festival 2022				Tournament McGregor Chess Freedom Day Rapid 2022
		date 2022-04-09	rnd 4	type Rapid	result 1	date 2022-04-27	rnd 1	type Rapid	result 1
		Opponent Chamba, R (Ruvarashe Sharon)				Opponent Snyman, C (Cradwin)
2	2	Tournament Robertson Strategema Club 2022				Tournament McGregor Chess December Festival 2022
		date 2022-10-29	rnd 5	type Standard	result 1	date 2022-12-10	rnd 1	type Standard	result 1
		Opponent Van Der Westhuizen, D (Dawid)				Opponent Erasmus, M (Maxwell)
3	2	Tournament Robertson Strategema Club 2022				Tournament Robertson Strategema Club 2022
		date 2022-10-29	rnd 2	type Standard	result 1	date 2022-10-29	rnd 3	type Standard	result 1
		Opponent Du Plessis, J (Jahmal)				Opponent Cupido, M (Martin)

#	Games	Start				End
1	2	Tournament Robertson Strategema Club 2022				Tournament McGregor Chess December Festival 2022
		date 2022-10-29	rnd 5	type Standard	result 1	date 2022-12-10	rnd 1	type Standard	result 1
		Opponent Van Der Westhuizen, D (Dawid)				Opponent Erasmus, M (Maxwell)
2	2	Tournament Robertson Strategema Club 2022				Tournament Robertson Strategema Club 2022
		date 2022-10-29	rnd 2	type Standard	result 1	date 2022-10-29	rnd 3	type Standard	result 1
		Opponent Du Plessis, J (Jahmal)				Opponent Cupido, M (Martin)
3	1	Tournament Cape Winelands Schools Chess - Trials 1 2023				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2023-02-25	rnd 5	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 1
		Opponent Hattingh, J (John)				Opponent Hattingh, J (John)

#	Games	Start				End
1	3	Tournament McGregor Kings Chess Festival 2022				Tournament McGregor Chess Freedom Day Rapid 2022
		date 2022-04-09	rnd 4	type Rapid	result 1	date 2022-04-27	rnd 1	type Rapid	result 1
		Opponent Chamba, R (Ruvarashe Sharon)				Opponent Snyman, C (Cradwin)
2	2	Tournament Strategema Chess Festival 2022				Tournament Strategema Chess Festival 2022
		date 2022-05-14	rnd 1	type Rapid	result 1	date 2022-05-14	rnd 2	type Rapid	result 1
		Opponent Du Plessis, J (Jahmal)				Opponent Visagie, J (Jermaine Franko)
3	2	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 3	type Rapid	result 1	date 2022-02-26	rnd 4	type Rapid	result 1
		Opponent Jacobs, C (Caley-Ann)				Opponent De Wet, C (Christiaan)

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	Fortuin ,J (Jemaine)	3	0	-425	0	0	0	3	0	-425	0	0	0
1	Fortuin ,J (Jemaine)	3	1288.6	863.6	0	0	0	3	1311.7	863.6	0	0	0
2	Robertson ,J (Jonah)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Robertson ,J (Jonah)	2	1432.5	1007.5	2	1370.2	1007.5	0	0	0	0	0	0
3	Du Plessis ,J (Jahmal)	2	2	425	1	1	425	1	1	425	0	0	0
3	Du Plessis ,J (Jahmal)	2	1182.6	1607.6	1	1180.4	1607.6	1	1200	1607.6	0	0	0
4	Visagie ,J (Jermaine Franko)	2	2	425	1	1	425	1	1	425	0	0	0
4	Visagie ,J (Jermaine Franko)	2	1173.7	1598.7	1	1200	1598.7	1	1200	1598.7	0	0	0
5	Van Zyl ,R (Rigter)	2	0	-425	1	0	-425	1	0	-425	0	0	0
5	Van Zyl ,R (Rigter)	2	1317.7	892.7	1	1179.4	892.7	1	1313.9	892.7	0	0	0
6	Lekay ,R (Remarko)	2	1	0	0	0	0	2	1	0	0	0	0
6	Lekay ,R (Remarko)	2	1202.7	1202.7	0	0	0	2	1149.8	1202.7	0	0	0
7	Snyman ,C (Cradwin)	2	1	0	0	0	0	2	1	0	0	0	0
7	Snyman ,C (Cradwin)	2	1217.6	1217.6	0	0	0	2	1231.1	1217.6	0	0	0
8	Kuhn ,J (John- Peter)	2	0	-425	0	0	0	2	0	-425	0	0	0
8	Kuhn ,J (John- Peter)	2	1207.8	782.8	0	0	0	2	1205.8	782.8	0	0	0
9	Chipps ,A (Alexa)	1	1	425	1	1	425	0	0	0	0	0	0
9	Chipps ,A (Alexa)	1	1245.2	1670.2	1	1227.9	1670.2	0	0	0	0	0	0
10	Oostendorff ,J (Juandre Keith)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Oostendorff ,J (Juandre Keith)	1	1253.8	1253.8	1	1260	1253.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

De Koker, D (Dillan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms