Chess South Africa Ratings Database

PLAYER PAGE

Personal

Claassens, J (John)

Chess SA id

1070110597

FIDE id

Date of birth

2007-07-17 (U20)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-02-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1171.8	1178.4	1180.4	1200
Raw rating	1171.8	1178.4	1180.4	1200
Weighted rating	1171.8	1178.4	1180.4	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.6	171	170.5	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2019-12-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2019-12-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1171.8	1178.4	1180.4	1200
Analysis
Rating	1171.8	1178.4	1180.4	1200
Raw rating	1171.8	1178.4	1180.4	1200
Weighted rating	1171.8	1178.4	1180.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	172.6	171	170.5	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	1171.8	1178.4	1180.4	1200
New weighted rating	1171.8	1178.4	1180.4	1200
New weighted performance	0	0	0	0
Temp new rating	1171.8	1178.4	1180.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1171.8	1178.4	1180.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	8	1	7

Games since
	Main 0	Standard 0		Rapid 0		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	8	3.5	43.75	-53.1	1148.4	1095.2
Standard	1	0	0	-425	1200	775
Rapid	7	3.5	50	0	1141	1141
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1171.8	1178.4	1180.4	1200
2025-09-30	1171.8	1178.4	1180.4	1200
2025-09-01	1171.8	1178.4	1180.4	1200
2025-08-01	1171.8	1178.4	1180.4	1200
2025-07-01	1171.8	1178.4	1180.4	1200
2025-06-01	1171.8	1178.4	1180.4	1200
2025-05-01	1171.8	1178.4	1180.4	1200
2025-04-01	1171.8	1178.4	1180.4	1200
2025-03-01	1171.8	1178.4	1180.4	1200
2025-02-01	1171.8	1178.4	1180.4	1200
2025-01-01	1171.8	1178.4	1180.4	1200
2024-12-01	1171.8	1178.4	1180.4	1200
2024-11-01	1171.8	1178.4	1180.4	1200
2024-10-01	1171.8	1178.4	1180.4	1200
2024-09-01	1171.8	1178.4	1180.4	1200
2024-08-01	1171.8	1178.4	1180.4	1200
2024-07-01	1171.8	1178.4	1180.4	1200
2024-09-01	1171.8	1178.4	1180.4	1200
2024-05-01	1171.8	1178.4	1180.4	1200
2024-04-01	1171.8	1178.4	1180.4	1200
2024-03-01	1171.8	1178.4	1180.4	1200
2024-02-01	1171.8	1178.4	1180.4	1200
2024-01-01	1171.8	1178.4	1180.4	1200
2023-12-01	1171.8	1178.4	1180.4	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	Bo-Weskus Skole Prestige 2020 (O15 Seuns)	2020-02-15	2020-02-15	Standard	West Coast (WCU)	6	1	0	Yes	Analysis
2	Bo-Weskus Skole Skaak Prestige 2019 (O13 Seuns)	2019-02-16	2019-02-16	Rapid	West Coast (WCU)	7	7	3.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 1	type Rapid	result 0.5	date 2019-02-16	rnd 2	type Rapid	result 1
		Opponent Thiart, A (Arno)				Opponent Witbooi, K (Keathon-Leigh)
2	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 6	type Rapid	result 1	date 2019-02-16	rnd 6	type Rapid	result 1
		Opponent Witbooi, R (Ryan)				Opponent Witbooi, R (Ryan)
3	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 4	type Rapid	result 1	date 2019-02-16	rnd 4	type Rapid	result 1
		Opponent Basson, F (Furnell)				Opponent Basson, F (Furnell)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 1	type Rapid	result 0.5	date 2019-02-16	rnd 2	type Rapid	result 1
		Opponent Thiart, A (Arno)				Opponent Witbooi, K (Keathon-Leigh)
2	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 6	type Rapid	result 1	date 2019-02-16	rnd 6	type Rapid	result 1
		Opponent Witbooi, R (Ryan)				Opponent Witbooi, R (Ryan)
3	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 4	type Rapid	result 1	date 2019-02-16	rnd 4	type Rapid	result 1
		Opponent Basson, F (Furnell)				Opponent Basson, F (Furnell)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 6	type Rapid	result 1	date 2019-02-16	rnd 6	type Rapid	result 1
		Opponent Witbooi, R (Ryan)				Opponent Witbooi, R (Ryan)
2	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 4	type Rapid	result 1	date 2019-02-16	rnd 4	type Rapid	result 1
		Opponent Basson, F (Furnell)				Opponent Basson, F (Furnell)
3	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 2	type Rapid	result 1	date 2019-02-16	rnd 2	type Rapid	result 1
		Opponent Witbooi, K (Keathon-Leigh)				Opponent Witbooi, K (Keathon-Leigh)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 6	type Rapid	result 1	date 2019-02-16	rnd 6	type Rapid	result 1
		Opponent Witbooi, R (Ryan)				Opponent Witbooi, R (Ryan)
2	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 4	type Rapid	result 1	date 2019-02-16	rnd 4	type Rapid	result 1
		Opponent Basson, F (Furnell)				Opponent Basson, F (Furnell)
3	1	Tournament Bo-Weskus Skole Skaak Prestige 2019				Tournament Bo-Weskus Skole Skaak Prestige 2019
		date 2019-02-16	rnd 2	type Rapid	result 1	date 2019-02-16	rnd 2	type Rapid	result 1
		Opponent Witbooi, K (Keathon-Leigh)				Opponent Witbooi, K (Keathon-Leigh)

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	Tekani ,J (Jacques)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Tekani ,J (Jacques)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Pretorius ,JB (Johnny Barend)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Pretorius ,JB (Johnny Barend)	1	787	362	0	0	0	1	618	362	0	0	0
3	Deiven ,A (Angel)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Deiven ,A (Angel)	1	1200	775	0	0	0	1	1200	775	0	0	0
4	Groenewald ,R (Randuaan)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Groenewald ,R (Randuaan)	1	1200	775	0	0	0	1	1200	775	0	0	0
5	Basson ,F (Furnell)	1	1	425	0	0	0	1	1	425	0	0	0
5	Basson ,F (Furnell)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Thiart ,A (Arno)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
6	Thiart ,A (Arno)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
7	Witbooi ,R (Ryan)	1	1	425	0	0	0	1	1	425	0	0	0
7	Witbooi ,R (Ryan)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Witbooi ,K (Keathon-Leigh)	1	1	425	0	0	0	1	1	425	0	0	0
8	Witbooi ,K (Keathon-Leigh)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Claassens, J (John)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms