Chess South Africa Ratings Database

PLAYER PAGE

Personal

Johnson, S (Sergall)

Chess SA id

1070109631

FIDE id

Date of birth

2007-10-28 (U20)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1194.1	1201.6	1186.2	1200
Raw rating	1194.1	1201.6	1186.2	1200
Weighted rating	1192.9	1201.6	1184.5	1200
Weighted performance	0	0	0	0
Floor	703.3	701.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	167.2	165.4	169.1	165.8
Highest rating	1212.6 2019-02-01	1201.7 2019-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1203.3 2024-02-01	1201.6 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1203.3 2024-02-01	1201.6 2024-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1212.6 2019-02-01	1201.7 2019-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1194.1	1201.6	1186.2	1200
Analysis
Rating	1194.1	1201.6	1186.2	1200
Raw rating	1194.1	1201.6	1186.2	1200
Weighted rating	1192.9	1201.6	1184.5
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	703.3	701.6	700	700
Max/Min rating change allowed	167.2	165.4	169.1	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	1194.1	1201.6	1186.2	1200
New weighted rating	1192.9	1201.6	1184.4	1200
New weighted performance	0	0	0	0
Temp new rating	1194.1	1201.6	1186.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1194.1	1201.6	1186.2	1200
New K-factor	36	36	36	36
New floor	703.3	701.6	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	6	0	6
	0	0	0
	0	0	0
	0	0	0
History	11	5	6

Games since
	Main 6	Standard 0		Rapid 6		Blitz 0
Gender	Male
Age group	U20
Region	West Coast (WCU)
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	11	5	45.45	-38.6	1183.5	1144.9
Standard	5	3	60	85	1124.3	1209.3
Rapid	6	2	33.33	-141.7	1232.9	1091.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1194.1	1201.6	1186.2	1200
2025-09-01	1194.1	1201.6	1186.2	1200
2025-08-01	1194.1	1201.6	1186.2	1200
2025-07-01	1194.1	1201.6	1186.2	1200
2025-06-01	1194.1	1201.6	1186.2	1200
2025-05-01	1194.1	1201.6	1186.2	1200
2025-04-01	1194.1	1201.6	1186.2	1200
2025-03-01	1194.1	1201.6	1186.2	1200
2025-02-01	1193.9	1201.6	1186	1200
2025-01-01	1187.7	1201.6	1177.7	1200
2024-12-01	1187.7	1201.6	1177.7	1200
2024-11-01	1187.5	1201.6	1175.9	1200
2024-10-01	1187.5	1201.6	1175.9	1200
2024-09-01	1187.5	1201.6	1175.9	1200
2024-08-01	1187.5	1201.6	1175.9	1200
2024-07-01	1187.5	1201.6	1175.9	1200
2024-06-01	1187.5	1201.6	1175.9	1200
2024-08-01	1203.3	1201.6	1200	1200
2024-04-01	1203.3	1201.6	1200	1200
2024-03-01	1203.3	1201.6	1200	1200
2024-02-01	1203.3	1201.6	1200	1200
2024-01-01	1203.3	1201.6	1200	1200
2023-12-01	1203.3	1201.6	1200	1200
2023-11-01	1203.3	1201.6	1200	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	West Coast Grand Challange League 2024 (HS Development)	2024-10-26	2024-10-26	Rapid	West Coast (WCU)	5	4	2	Yes	Analysis
2	Lower West Top Schools 2024 (U18)	2024-05-11	2024-05-11	Rapid	West Coast (WCU)	5	2	0	Yes	Analysis
3	St Helenabaai Open 2019 (U12)	2019-02-09	2019-02-09	Standard	West Coast (WCU)	5	5	3	Yes	Analysis

#	Games	Start				End
1	2	Tournament St Helenabaai Open 2019				Tournament St Helenabaai Open 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Adams, T (Tayron)				Opponent Williams, L (Leslyn)
2	1	Tournament West Coast Grand Challange League 2024				Tournament West Coast Grand Challange League 2024
		date 2024-10-26	rnd 4	type Rapid	result 1	date 2024-10-26	rnd 4	type Rapid	result 1
		Opponent Elliott, M (Matayo)				Opponent Elliott, M (Matayo)
3	1	Tournament West Coast Grand Challange League 2024				Tournament West Coast Grand Challange League 2024
		date 2024-10-26	rnd 1	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Mgulwana, L (Lethu)				Opponent Mgulwana, L (Lethu)

#	Games	Start				End
1	2	Tournament St Helenabaai Open 2019				Tournament St Helenabaai Open 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Adams, T (Tayron)				Opponent Williams, L (Leslyn)
2	1	Tournament St Helenabaai Open 2019				Tournament St Helenabaai Open 2019
		date 2019-02-09	rnd 1	type Standard	result 1	date 2019-02-09	rnd 1	type Standard	result 1
		Opponent Theron, W (Wian)				Opponent Theron, W (Wian)

#	Games	Start				End
1	1	Tournament West Coast Grand Challange League 2024				Tournament West Coast Grand Challange League 2024
		date 2024-10-26	rnd 4	type Rapid	result 1	date 2024-10-26	rnd 4	type Rapid	result 1
		Opponent Elliott, M (Matayo)				Opponent Elliott, M (Matayo)
2	1	Tournament West Coast Grand Challange League 2024				Tournament West Coast Grand Challange League 2024
		date 2024-10-26	rnd 1	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Mgulwana, L (Lethu)				Opponent Mgulwana, L (Lethu)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament St Helenabaai Open 2019				Tournament St Helenabaai Open 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Adams, T (Tayron)				Opponent Williams, L (Leslyn)
2	1	Tournament West Coast Grand Challange League 2024				Tournament West Coast Grand Challange League 2024
		date 2024-10-26	rnd 4	type Rapid	result 1	date 2024-10-26	rnd 4	type Rapid	result 1
		Opponent Elliott, M (Matayo)				Opponent Elliott, M (Matayo)
3	1	Tournament West Coast Grand Challange League 2024				Tournament West Coast Grand Challange League 2024
		date 2024-10-26	rnd 1	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Mgulwana, L (Lethu)				Opponent Mgulwana, L (Lethu)

#	Games	Start				End
1	2	Tournament St Helenabaai Open 2019				Tournament St Helenabaai Open 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-02-09	rnd 4	type Standard	result 1
		Opponent Adams, T (Tayron)				Opponent Williams, L (Leslyn)
2	1	Tournament St Helenabaai Open 2019				Tournament St Helenabaai Open 2019
		date 2019-02-09	rnd 1	type Standard	result 1	date 2019-02-09	rnd 1	type Standard	result 1
		Opponent Theron, W (Wian)				Opponent Theron, W (Wian)

#	Games	Start				End
1	1	Tournament West Coast Grand Challange League 2024				Tournament West Coast Grand Challange League 2024
		date 2024-10-26	rnd 4	type Rapid	result 1	date 2024-10-26	rnd 4	type Rapid	result 1
		Opponent Elliott, M (Matayo)				Opponent Elliott, M (Matayo)
2	1	Tournament West Coast Grand Challange League 2024				Tournament West Coast Grand Challange League 2024
		date 2024-10-26	rnd 1	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Mgulwana, L (Lethu)				Opponent Mgulwana, L (Lethu)

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	Theron ,W (Wian)	1	1	425	1	1	425	0	0	0	0	0	0
1	Theron ,W (Wian)	1	1134.3	1559.3	1	1140	1559.3	0	0	0	0	0	0
2	Brooks ,L (Lehane)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Brooks ,L (Lehane)	1	1126.2	701.2	1	1116.9	701.2	0	0	0	0	0	0
3	Williams ,L (Leslyn)	1	1	425	1	1	425	0	0	0	0	0	0
3	Williams ,L (Leslyn)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Van Zyl ,M (Mea)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Van Zyl ,M (Mea)	1	960.8	535.8	1	909.9	535.8	0	0	0	0	0	0
5	Adams ,T (Tayron)	1	1	425	1	1	425	0	0	0	0	0	0
5	Adams ,T (Tayron)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Tshamlamba ,L (Lutho)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Tshamlamba ,L (Lutho)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Sithole ,D (Dylan)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Sithole ,D (Dylan)	1	1178.6	753.6	0	0	0	1	1200	753.6	0	0	0
8	Elliott ,M (Matayo)	1	1	425	0	0	0	1	1	425	0	0	0
8	Elliott ,M (Matayo)	1	1181.2	1606.2	0	0	0	1	1143.1	1606.2	0	0	0
9	Mgulwana ,L (Lethu)	1	1	425	0	0	0	1	1	425	0	0	0
9	Mgulwana ,L (Lethu)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	De Meillon ,K (Kian)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	De Meillon ,K (Kian)	1	1193.6	768.6	0	0	0	1	1253.8	768.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Johnson, S (Sergall)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms