Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzee, J (Joshua)

Chess SA id

1060097998

FIDE id

Date of birth

2006-03-03 (U20)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-03-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1078.3	1128	1097.2	1200
Raw rating	1078.3	1128	1097.2	1200
Weighted rating	1078.3	1128	1097.2	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	197.2	183.7	192	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1078.3	1128	1097.2	1200
Analysis
Rating	1078.3	1128	1097.2	1200
Raw rating	1078.3	1128	1097.2	1200
Weighted rating	1078.3	1128	1097.2
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	197.2	183.7	192	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	1078.3	1128	1097.2	1200
New weighted rating	1078.3	1128	1097.2	1200
New weighted performance	0	0	0	0
Temp new rating	1078.3	1128	1097.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1078.3	1128	1097.2	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	13	7	6

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	13	3.5	26.92	-196.2	1105.3	909.1
Standard	7	2.5	35.71	-121.4	1076.6	955.2
Rapid	6	1	16.67	-283.3	1138.7	855.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1078.3	1128	1097.2	1200
2025-09-01	1078.3	1128	1097.2	1200
2025-08-01	1078.3	1128	1097.2	1200
2025-07-01	1078.3	1128	1097.2	1200
2025-06-01	1078.3	1128	1097.2	1200
2025-05-01	1078.3	1128	1097.2	1200
2025-04-01	1078.3	1128	1097.2	1200
2025-03-01	1078.3	1128	1097.2	1200
2025-02-01	1078.3	1128	1097.2	1200
2025-01-01	1078.3	1128	1097.2	1200
2024-12-01	1078.3	1128	1097.2	1200
2024-11-01	1078.3	1128	1097.2	1200
2024-10-01	1078.3	1128	1097.2	1200
2024-09-01	1078.3	1128	1097.2	1200
2024-08-01	1078.3	1128	1097.2	1200
2024-07-01	1078.3	1128	1097.2	1200
2024-06-01	1078.3	1128	1097.2	1200
2024-08-01	1078.3	1128	1097.2	1200
2024-04-01	1078.3	1128	1097.2	1200
2024-03-01	1078.3	1128	1097.2	1200
2024-02-01	1078.3	1128	1097.2	1200
2024-01-01	1078.3	1128	1097.2	1200
2023-12-01	1078.3	1128	1097.2	1200
2023-11-01	1078.3	1128	1097.2	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	Cape Winelands Schools Trials 1 2018 (U13 Boys)	2018-03-03	2018-03-03	Rapid	Cape Winelands (WCW)	6	6	1	Yes	Analysis
2	Cape Winelands Schools Prestige 2018 (U13 Boys)	2018-03-24	2018-03-25	Standard	Cape Winelands (WCW)	7	7	2.5	Yes	Analysis

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-25	rnd 7	type Standard	result 1	date 2018-03-25	rnd 7	type Standard	result 1
		Opponent Swanepoel, M (Marcus)				Opponent Swanepoel, M (Marcus)
2	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Opperman, E (Enrico)				Opponent Opperman, E (Enrico)
3	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 1	type Standard	result 0.5	date 2018-03-24	rnd 1	type Standard	result 0.5
		Opponent De Wet, WJ (Wouter)				Opponent De Wet, WJ (Wouter)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-25	rnd 7	type Standard	result 1	date 2018-03-25	rnd 7	type Standard	result 1
		Opponent Swanepoel, M (Marcus)				Opponent Swanepoel, M (Marcus)
2	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Opperman, E (Enrico)				Opponent Opperman, E (Enrico)
3	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 1	type Standard	result 0.5	date 2018-03-24	rnd 1	type Standard	result 0.5
		Opponent De Wet, WJ (Wouter)				Opponent De Wet, WJ (Wouter)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 3	type Rapid	result 1	date 2018-03-03	rnd 3	type Rapid	result 1
		Opponent Van Rooyen, D (De Villiers)				Opponent Van Rooyen, D (De Villiers)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-25	rnd 7	type Standard	result 1	date 2018-03-25	rnd 7	type Standard	result 1
		Opponent Swanepoel, M (Marcus)				Opponent Swanepoel, M (Marcus)
2	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Opperman, E (Enrico)				Opponent Opperman, E (Enrico)
3	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 3	type Rapid	result 1	date 2018-03-03	rnd 3	type Rapid	result 1
		Opponent Van Rooyen, D (De Villiers)				Opponent Van Rooyen, D (De Villiers)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-25	rnd 7	type Standard	result 1	date 2018-03-25	rnd 7	type Standard	result 1
		Opponent Swanepoel, M (Marcus)				Opponent Swanepoel, M (Marcus)
2	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Opperman, E (Enrico)				Opponent Opperman, E (Enrico)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 3	type Rapid	result 1	date 2018-03-03	rnd 3	type Rapid	result 1
		Opponent Van Rooyen, D (De Villiers)				Opponent Van Rooyen, D (De Villiers)

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	Opperman ,E (Enrico)	2	1	0	1	1	425	1	0	-425	0	0	0
1	Opperman ,E (Enrico)	2	1132.4	1132.4	1	1200	1557.4	1	1082.4	707.4	0	0	0
2	De Wet ,WJ (Wouter Johannes)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	De Wet ,WJ (Wouter Johannes)	1	917.1	917.1	1	890.2	917.1	0	0	0	0	0	0
3	Baron ,R (Rowan-Lee)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Baron ,R (Rowan-Lee)	1	754	329	1	754	329	0	0	0	0	0	0
4	Swanepoel ,M (Marcus)	1	1	425	1	1	425	0	0	0	0	0	0
4	Swanepoel ,M (Marcus)	1	1163.3	1588.3	1	1200	1588.3	0	0	0	0	0	0
5	Segelaar ,G (Geriant)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Segelaar ,G (Geriant)	1	1187.8	762.8	1	1200	762.8	0	0	0	0	0	0
6	Ruiters ,D (Dehiaano)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Ruiters ,D (Dehiaano)	1	1199.3	774.3	1	1200	774.3	0	0	0	0	0	0
7	Smith ,JC (Juan Cornel)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Smith ,JC (Juan Cornel)	1	1182.4	757.4	1	1178.8	757.4	0	0	0	0	0	0
8	Didloff ,T (Tristan)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Didloff ,T (Tristan)	1	1003.2	578.2	0	0	0	1	1003.2	578.2	0	0	0
9	Van Rooyen ,D (De Villiers)	1	1	425	0	0	0	1	1	425	0	0	0
9	Van Rooyen ,D (De Villiers)	1	1174.3	1599.3	0	0	0	1	1157.2	1599.3	0	0	0
10	Minnaar ,M (Marquin)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Minnaar ,M (Marquin)	1	1187	762	0	0	0	1	1178.4	762	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Coetzee, J (Joshua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms