Chess South Africa Ratings Database

PLAYER PAGE

Personal

Johnston, S (Samuel)

Chess SA id

1080096089

FIDE id

Date of birth

2008-05-02 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-02-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1140.4	1102.8	1216.4	1200
Raw rating	1140.4	1102.8	1216.4	1200
Weighted rating	1140.4	1102.8	1216.4	1200
Weighted performance	0	0	0	0
Floor	700	700	716.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	180.5	190.4	162	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1272.8 2019-02-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1216.4 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1216.4 2024-02-01	1200 2018-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1272.8 2019-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1140.4	1102.8	1216.4	1200
Analysis
Rating	1140.4	1102.8	1216.4	1200
Raw rating	1140.4	1102.8	1216.4	1200
Weighted rating	1140.4	1102.8	1216.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	716.4	700
Max/Min rating change allowed	180.5	190.4	162	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	1140.4	1102.8	1216.4	1200
New weighted rating	1140.4	1102.8	1216.4	1200
New weighted performance	0	0	0	0
Temp new rating	1140.4	1102.8	1216.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1140.4	1102.8	1216.4	1200
New K-factor	36	36	36	36
New floor	700	700	716.4	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	12	7	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	12	5	41.67	-70.8	1101.2	1030.3
Standard	7	2	28.57	-182.1	1047.3	865.1
Rapid	5	3	60	85	1176.6	1261.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1140.4	1102.8	1216.4	1200
2025-09-30	1140.4	1102.8	1216.4	1200
2025-09-01	1140.4	1102.8	1216.4	1200
2025-08-01	1140.4	1102.8	1216.4	1200
2025-07-01	1140.4	1102.8	1216.4	1200
2025-06-01	1140.4	1102.8	1216.4	1200
2025-05-01	1140.4	1102.8	1216.4	1200
2025-04-01	1140.4	1102.8	1216.4	1200
2025-03-01	1140.4	1102.8	1216.4	1200
2025-02-01	1140.4	1102.8	1216.4	1200
2025-01-01	1140.4	1102.8	1216.4	1200
2024-12-01	1140.4	1102.8	1216.4	1200
2024-11-01	1140.4	1102.8	1216.4	1200
2024-10-01	1140.4	1102.8	1216.4	1200
2024-09-01	1140.4	1102.8	1216.4	1200
2024-08-01	1140.4	1102.8	1216.4	1200
2024-07-01	1140.4	1102.8	1216.4	1200
2024-09-01	1140.4	1102.8	1216.4	1200
2024-05-01	1140.4	1102.8	1216.4	1200
2024-04-01	1140.4	1102.8	1216.4	1200
2024-03-01	1140.4	1102.8	1216.4	1200
2024-02-01	1140.4	1102.8	1216.4	1200
2024-01-01	1140.4	1102.8	1216.4	1200
2023-12-01	1140.4	1102.8	1216.4	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	Welgemoed Chess Challenge 2019 (U12)	2019-02-23	2019-02-23	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
2	WP District South 2018 (U11)	2018-02-01	2018-02-02	Standard	Cape Town (WCT)	6	1	0	Yes	Analysis
3	2018 Central District Trials (U11)	2018-02-02	2018-02-03	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis

#	Games	Start				End
1	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-02-23	rnd 5	type Rapid	result 1
		Opponent Dibden, C (Cameron)				Opponent Dibden, C (Cameron)
2	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 3	type Rapid	result 1	date 2019-02-23	rnd 3	type Rapid	result 1
		Opponent Siwa, I (Inako)				Opponent Siwa, I (Inako)
3	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 1	type Rapid	result 1	date 2019-02-23	rnd 1	type Rapid	result 1
		Opponent Hugo, E (Emil)				Opponent Hugo, E (Emil)

#	Games	Start				End
1	1	Tournament 2018 Central District Trials				Tournament 2018 Central District Trials
		date 2018-02-03	rnd 5	type Standard	result 1	date 2018-02-03	rnd 5	type Standard	result 1
		Opponent Gamzana, S (Simthandile)				Opponent Gamzana, S (Simthandile)
2	1	Tournament 2018 Central District Trials				Tournament 2018 Central District Trials
		date 2018-02-03	rnd 3	type Standard	result 1	date 2018-02-03	rnd 3	type Standard	result 1
		Opponent Siyo, O (Owethu)				Opponent Siyo, O (Owethu)

#	Games	Start				End
1	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-02-23	rnd 5	type Rapid	result 1
		Opponent Dibden, C (Cameron)				Opponent Dibden, C (Cameron)
2	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 3	type Rapid	result 1	date 2019-02-23	rnd 3	type Rapid	result 1
		Opponent Siwa, I (Inako)				Opponent Siwa, I (Inako)
3	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 1	type Rapid	result 1	date 2019-02-23	rnd 1	type Rapid	result 1
		Opponent Hugo, E (Emil)				Opponent Hugo, E (Emil)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-02-23	rnd 5	type Rapid	result 1
		Opponent Dibden, C (Cameron)				Opponent Dibden, C (Cameron)
2	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 3	type Rapid	result 1	date 2019-02-23	rnd 3	type Rapid	result 1
		Opponent Siwa, I (Inako)				Opponent Siwa, I (Inako)
3	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 1	type Rapid	result 1	date 2019-02-23	rnd 1	type Rapid	result 1
		Opponent Hugo, E (Emil)				Opponent Hugo, E (Emil)

#	Games	Start				End
1	1	Tournament 2018 Central District Trials				Tournament 2018 Central District Trials
		date 2018-02-03	rnd 5	type Standard	result 1	date 2018-02-03	rnd 5	type Standard	result 1
		Opponent Gamzana, S (Simthandile)				Opponent Gamzana, S (Simthandile)
2	1	Tournament 2018 Central District Trials				Tournament 2018 Central District Trials
		date 2018-02-03	rnd 3	type Standard	result 1	date 2018-02-03	rnd 3	type Standard	result 1
		Opponent Siyo, O (Owethu)				Opponent Siyo, O (Owethu)

#	Games	Start				End
1	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-02-23	rnd 5	type Rapid	result 1
		Opponent Dibden, C (Cameron)				Opponent Dibden, C (Cameron)
2	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 3	type Rapid	result 1	date 2019-02-23	rnd 3	type Rapid	result 1
		Opponent Siwa, I (Inako)				Opponent Siwa, I (Inako)
3	1	Tournament Welgemoed Chess Challenge 2019				Tournament Welgemoed Chess Challenge 2019
		date 2019-02-23	rnd 1	type Rapid	result 1	date 2019-02-23	rnd 1	type Rapid	result 1
		Opponent Hugo, E (Emil)				Opponent Hugo, E (Emil)

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	Karsten ,JD (Jan Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Karsten ,JD (Jan Daniel)	1	830.8	405.8	1	830.8	405.8	0	0	0	0	0	0
2	Bake ,Z (Zenzo Alessandro)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Bake ,Z (Zenzo Alessandro)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Siyo ,O (Owethu)	1	1	425	1	1	425	0	0	0	0	0	0
3	Siyo ,O (Owethu)	1	500	925	1	500	925	0	0	0	0	0	0
4	Chen ,P (Po-Hao)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Chen ,P (Po-Hao)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Matthews ,L (Luke)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Matthews ,L (Luke)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Rabinowitz ,A (Adam)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Rabinowitz ,A (Adam)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Gamzana ,S (Simthandile)	1	1	425	1	1	425	0	0	0	0	0	0
7	Gamzana ,S (Simthandile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Dibden ,C (Cameron)	1	1	425	0	0	0	1	1	425	0	0	0
8	Dibden ,C (Cameron)	1	1120.9	1545.9	0	0	0	1	1200	1545.9	0	0	0
9	Hugo ,E (Emil)	1	1	425	0	0	0	1	1	425	0	0	0
9	Hugo ,E (Emil)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Spiller ,C (Caden)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Spiller ,C (Caden)	1	1222.9	797.9	0	0	0	1	1194.2	797.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Johnston, S (Samuel)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms