Chess South Africa Ratings Database

PLAYER PAGE

Personal

Foster, D (Derek)

Chess SA id

1120160157

FIDE id

Date of birth

2012-01-31 (U14)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-04-13

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1193.7	1195.6	1184.2	1200
Raw rating	1193.7	1195.6	1184.2	1200
Weighted rating	1193.7	1195.1	1183.9	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	167.3	166.8	169.6	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2024-03-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2024-03-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1193.7	1195.6	1184.2	1200
Analysis
Rating	1193.7	1195.6	1184.2	1200
Raw rating	1193.7	1195.6	1184.2	1200
Weighted rating	1193.7	1195.1	1183.9
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	167.3	166.8	169.6	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	1193.7	1195.6	1184.2	1200
New weighted rating	1193.7	1195.1	1184	1200
New weighted performance	0	0	0	0
Temp new rating	1193.7	1195.6	1184.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1193.7	1195.6	1184.2	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	5	5	0
	5	0	5
	0	0	0
	0	0	0
History	10	5	5

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Mangaung (FMB)
Province	Free State (FS)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	10	5	50	0	1155.6	1155.6
Standard	5	3	60	85	1119.5	1204.5
Rapid	5	2	40	-85	1191.6	1106.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1193.7	1195.6	1184.2	1200
2025-09-30	1193.7	1195.6	1184.2	1200
2025-09-01	1193.7	1195.6	1184.2	1200
2025-08-01	1193.7	1195.6	1184.2	1200
2025-07-01	1193.7	1195.6	1184.2	1200
2025-06-01	1193.7	1195.6	1184.2	1200
2025-05-01	1193.7	1195.6	1184.2	1200
2025-04-01	1193.7	1195.6	1184.2	1200
2025-03-01	1193.7	1195.6	1184.2	1200
2025-02-01	1193.7	1195.6	1184.2	1200
2025-01-01	1193.7	1193.2	1183.4	1200
2024-12-01	1193.7	1193.2	1183.4	1200
2024-11-01	1193.7	1193.2	1183.4	1200
2024-10-01	1193.7	1193.2	1183.4	1200
2024-09-01	1193.7	1193.2	1183.4	1200
2024-08-01	1193.7	1193.2	1183.4	1200
2024-07-01	1193.7	1193.2	1183.4	1200
2024-09-01	1193.7	1193.2	1183.4	1200
2024-05-01	1193.7	1193.2	1183.4	1200
2024-04-01	1192.8	1200	1183.4	1200
2024-03-01	1192.8	1200	1183.4	1200
2024-02-01	1192.8	1200	1183.4	1200
2024-01-01	1192.8	1200	1183.4	1200
2023-12-01	1192.8	1200	1183.4	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	Mangaung Metro Chess 12-13 April 2024 (C+D)	2024-04-12	2024-04-13	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
2	August Primary School Chess Festival 2023 (Grade 6+7 B)	2023-08-04	2023-08-04	Rapid	Mangaung (FMB)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament August Primary School Chess Festival 2023				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2023-08-04	rnd 5	type Rapid	result 1	date 2024-04-12	rnd 2	type Standard	result 1
		Opponent Mofutsanyana, M (Mpumelelo)				Opponent Mcpherson, L (Lilly)
2	1	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-04-13	rnd 4	type Standard	result 1
		Opponent Du Toit, C (Calem)				Opponent Du Toit, C (Calem)
3	1	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 1	type Rapid	result 1	date 2023-08-04	rnd 1	type Rapid	result 1
		Opponent Chabangu, L (Lethabo)				Opponent Chabangu, L (Lethabo)

#	Games	Start				End
1	2	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-12	rnd 1	type Standard	result 1	date 2024-04-12	rnd 2	type Standard	result 1
		Opponent Matiki, T (Thandeka)				Opponent Mcpherson, L (Lilly)
2	1	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-04-13	rnd 4	type Standard	result 1
		Opponent Du Toit, C (Calem)				Opponent Du Toit, C (Calem)

#	Games	Start				End
1	1	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 5	type Rapid	result 1	date 2023-08-04	rnd 5	type Rapid	result 1
		Opponent Mofutsanyana, M (Mpumelelo)				Opponent Mofutsanyana, M (Mpumelelo)
2	1	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 1	type Rapid	result 1	date 2023-08-04	rnd 1	type Rapid	result 1
		Opponent Chabangu, L (Lethabo)				Opponent Chabangu, L (Lethabo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament August Primary School Chess Festival 2023				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2023-08-04	rnd 5	type Rapid	result 1	date 2024-04-12	rnd 2	type Standard	result 1
		Opponent Mofutsanyana, M (Mpumelelo)				Opponent Mcpherson, L (Lilly)
2	1	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-04-13	rnd 4	type Standard	result 1
		Opponent Du Toit, C (Calem)				Opponent Du Toit, C (Calem)
3	1	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 1	type Rapid	result 1	date 2023-08-04	rnd 1	type Rapid	result 1
		Opponent Chabangu, L (Lethabo)				Opponent Chabangu, L (Lethabo)

#	Games	Start				End
1	2	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-12	rnd 1	type Standard	result 1	date 2024-04-12	rnd 2	type Standard	result 1
		Opponent Matiki, T (Thandeka)				Opponent Mcpherson, L (Lilly)
2	1	Tournament Mangaung Metro Chess 12-13 April 2024				Tournament Mangaung Metro Chess 12-13 April 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-04-13	rnd 4	type Standard	result 1
		Opponent Du Toit, C (Calem)				Opponent Du Toit, C (Calem)

#	Games	Start				End
1	1	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 5	type Rapid	result 1	date 2023-08-04	rnd 5	type Rapid	result 1
		Opponent Mofutsanyana, M (Mpumelelo)				Opponent Mofutsanyana, M (Mpumelelo)
2	1	Tournament August Primary School Chess Festival 2023				Tournament August Primary School Chess Festival 2023
		date 2023-08-04	rnd 1	type Rapid	result 1	date 2023-08-04	rnd 1	type Rapid	result 1
		Opponent Chabangu, L (Lethabo)				Opponent Chabangu, L (Lethabo)

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	Du Toit ,C (Calem)	1	1	425	1	1	425	0	0	0	0	0	0
1	Du Toit ,C (Calem)	1	1147.1	1572.1	1	1142.8	1572.1	0	0	0	0	0	0
2	Mcpherson ,L (Lilly)	1	1	425	1	1	425	0	0	0	0	0	0
2	Mcpherson ,L (Lilly)	1	1077.9	1502.9	1	1035.6	1502.9	0	0	0	0	0	0
3	Maritz ,J (Jandre)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Maritz ,J (Jandre)	1	1225.3	800.3	1	1191.2	800.3	0	0	0	0	0	0
4	Matiki ,T (Thandeka)	1	1	425	1	1	425	0	0	0	0	0	0
4	Matiki ,T (Thandeka)	1	974.7	1399.7	1	1014.8	1399.7	0	0	0	0	0	0
5	Mokhachane ,K (Kgalalelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mokhachane ,K (Kgalalelo)	1	1172.3	747.3	1	1051.2	747.3	0	0	0	0	0	0
6	Uwakwe ,C (Chibueze)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Uwakwe ,C (Chibueze)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Tromp ,D (Daniel)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Tromp ,D (Daniel)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Boje ,E (Ewald)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Boje ,E (Ewald)	1	1157.9	732.9	0	0	0	1	1204.2	732.9	0	0	0
9	Chabangu ,L (Lethabo)	1	1	425	0	0	0	1	1	425	0	0	0
9	Chabangu ,L (Lethabo)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Mofutsanyana ,M (Mpumelelo)	1	1	425	0	0	0	1	1	425	0	0	0
10	Mofutsanyana ,M (Mpumelelo)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Foster, D (Derek)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms