Chess South Africa Ratings Database

PLAYER PAGE

Personal

Visser, D (David)

Chess SA id

1120300267

FIDE id

Date of birth

2012-02-08 (U14)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1166.8	1162.8	1200	1200
Raw rating	1166.8	1162.8	1200	1200
Weighted rating	1159.3	1150.6	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	173.8	174.8	165.8	165.8
Highest rating	1200 2024-03-01	1200 2024-03-01	1200 2024-04-01	1200 2024-04-01
Highest raw rating	1200 2024-03-01	1200 2024-03-01	1200 2024-04-01	1200 2024-04-01
Highest weighted rating	1200 2024-03-01	1200 2024-03-01	1200 2024-04-01	1200 2024-04-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-04-01	1200 2024-04-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1166.8	1162.8	1200	1200
Analysis
Rating	1166.8	1162.8	1200	1200
Raw rating	1166.8	1162.8	1200	1200
Weighted rating	1159.3	1150.6	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	173.8	174.8	165.8	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	1166.8	1162.8	1200	1200
New weighted rating	1159.6	1151.3	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1166.8	1162.8	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1166.8	1162.8	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

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

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
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	5	2	40	-85	1280.7	1195.7
Standard	5	2	40	-85	1280.7	1195.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	3	30	-170	1226.8	1056.8
Standard	10	3	30	-170	1226.8	1056.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1166.8	1162.8	1200	1200
2025-09-30	1163	1154.9	1200	1200
2025-09-01	1163	1154.9	1200	1200
2025-08-01	1163	1154.9	1200	1200
2025-07-01	1163	1154.9	1200	1200
2025-06-01	1163	1154.9	1200	1200
2025-05-01	1163	1154.9	1200	1200
2025-04-01	1163	1154.9	1200	1200
2025-03-01	1163	1154.9	1200	1200
2025-02-01	1162.7	1154.6	1200	1200
2025-01-01	1146.5	1134.8	1200	1200
2024-12-01	1146.5	1134.8	1200	1200
2024-11-01	1146.5	1134.8	1200	1200
2024-10-01	1146.5	1134.8	1200	1200
2024-09-01	1146.5	1134.8	1200	1200
2024-08-01	1146.5	1134.8	1200	1200
2024-07-01	1146.5	1134.8	1200	1200
2024-09-01	1146.5	1134.8	1200	1200
2024-05-01	1146.5	1134.8	1200	1200
2024-04-01	1146.5	1134.8	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U13)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U13)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	JMC Unika School Tournament 2024 (D)	2024-03-02	2024-03-02	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis

#	Games	Start				End
1	1	Tournament 2025 Gauteng Top Schools Teams				Tournament 2025 Gauteng Top Schools Teams
		date 2025-08-29	rnd 5	type Standard	result 1	date 2025-08-29	rnd 5	type Standard	result 1
		Opponent Phakoago, N (Ntaka)				Opponent Phakoago, N (Ntaka)
2	1	Tournament 2025 Gauteng Top Schools Teams				Tournament 2025 Gauteng Top Schools Teams
		date 2025-08-29	rnd 2	type Standard	result 1	date 2025-08-29	rnd 2	type Standard	result 1
		Opponent Venter, D (Dian)				Opponent Venter, D (Dian)
3	1	Tournament JMC Unika School Tournament 2024				Tournament JMC Unika School Tournament 2024
		date 2024-03-02	rnd 5	type Standard	result 1	date 2024-03-02	rnd 5	type Standard	result 1
		Opponent Sibanda, A (Andile)				Opponent Sibanda, A (Andile)

#	Games	Start				End
1	1	Tournament JMC Unika School Tournament 2024				Tournament JMC Unika School Tournament 2024
		date 2024-03-02	rnd 5	type Standard	result 1	date 2024-03-02	rnd 5	type Standard	result 1
		Opponent Sibanda, A (Andile)				Opponent Sibanda, A (Andile)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament JMC Unika School Tournament 2024				Tournament JMC Unika School Tournament 2024
		date 2024-03-02	rnd 5	type Standard	result 1	date 2024-03-02	rnd 5	type Standard	result 1
		Opponent Sibanda, A (Andile)				Opponent Sibanda, A (Andile)

#	Games	Start				End
1	1	Tournament JMC Unika School Tournament 2024				Tournament JMC Unika School Tournament 2024
		date 2024-03-02	rnd 5	type Standard	result 1	date 2024-03-02	rnd 5	type Standard	result 1
		Opponent Sibanda, A (Andile)				Opponent Sibanda, A (Andile)

No games found.

#	Games	Start				End

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	Sibanda ,A (Andile)	1	1	425	1	1	425	0	0	0	0	0	0
1	Sibanda ,A (Andile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Collyer ,S (Sebastian)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Collyer ,S (Sebastian)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Phakoago ,N (Ntaka)	1	1	425	1	1	425	0	0	0	0	0	0
3	Phakoago ,N (Ntaka)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Lewis ,M (Mille)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Lewis ,M (Mille)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Meng ,X (Xiang)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Meng ,X (Xiang)	1	1257.7	832.7	1	1251.2	832.7	0	0	0	0	0	0
6	Venter ,D (Dian)	1	1	425	1	1	425	0	0	0	0	0	0
6	Venter ,D (Dian)	1	1209.8	1634.8	1	1212.5	1634.8	0	0	0	0	0	0
7	Sello ,T (Tumelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Sello ,T (Tumelo)	1	1390.6	965.6	1	1397.9	965.6	0	0	0	0	0	0
8	Chikwava ,R (Ronald)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Chikwava ,R (Ronald)	1	1006.2	581.2	1	997.2	581.2	0	0	0	0	0	0
9	Van Der Merwe ,H (Hendrik)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Van Der Merwe ,H (Hendrik)	1	1301.1	876.1	1	1306	876.1	0	0	0	0	0	0
10	Mphahlele ,B (Bizo)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mphahlele ,B (Bizo)	1	1302.1	877.1	1	1320.7	877.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Visser, D (David)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms