Chess South Africa Ratings Database

PLAYER PAGE

Personal

Visser, I (Izak)

Chess SA id

1120149762

FIDE id

Date of birth

2012-06-07 (U14)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

13.7

Junior GPX Points

1097.1

Item	Main	Standard	Rapid	Blitz
Rating	1193.7	1188	1216.1	1200
Raw rating	1169.9	1147.5	1216.1	1200
Weighted rating	1193.7	1188	1203.7	1200
Weighted performance	1032.1	0	0	0
Floor	716.6	718.8	716.1	700
K-factor	36	36	36	36
Min/Max rating change allowed	173.1	178.7	162.1	165.8
Highest rating	1286.1 2023-02-01	1281.3 2023-02-01	1216.1 2025-09-01	1200 2018-10-01
Highest raw rating	1216.6 2023-03-01	1218.8 2023-03-01	1216.1 2025-09-01	1200 2024-03-01
Highest weighted rating	1216.6 2023-03-01	1218.8 2023-03-01	1201.3 2025-09-01	1200 2018-10-01
Highest weighted performance	1286.1 2023-02-01	1281.3 2023-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.9	-3.4	0	0
New rating	1191.8	1184.6	1216.1	1200
Analysis
Rating	1193.7	1188	1216.1	1200
Raw rating	1169.9	1147.5	1216.1	1200
Weighted rating	1193.7	1188	1203.7
Weighted performance	1032.1	0	0
K-factor	36	36	36	36
Floor	716.6	718.8	716.1	700
Max/Min rating change allowed	173.1	178.7	162.1	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	1169.9	1147.5	1216.1	1200
New weighted rating	1191.8	1184.6	1204.8	1200
New weighted performance	1025.5	0	0	0
Temp new rating	1191.8	1184.6	1216.1	1200
Temp new rating +/-	-1.9	-3.4	0	0
Final new rating +/-	-1.9	-3.4	0	0
New rating	1191.8	1184.6	1216.1	1200
New K-factor	36	36	36	36
New floor	716.6	718.8	716.1	700

Item	Main	Standard	Rapid
	0	0	0
	16	11	5
	0	0	0
	10	10	0
	0	0	0
	0	0	0
History	26	21	5

Games since
	Main 16	Standard 11		Rapid 5		Blitz 0
Gender	Male
Age group	U14
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	16	6.5	40.62	-79.7	1239.6	1159.9
Standard	11	3.5	31.82	-154.5	1263.4	1108.8
Rapid	5	3	60	85	1187.4	1272.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	26	11	42.31	-65.4	1236.3	1170.9
Standard	21	8	38.1	-101.2	1247.9	1146.7
Rapid	5	3	60	85	1187.4	1272.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1169.9	1147.5	1216.1	1200
2025-09-30	1203.7	1191.8	1216.1	1200
2025-09-01	1203.7	1191.8	1216.1	1200
2025-08-01	1194.2	1191.8	1200	1200
2025-07-01	1194.2	1191.8	1200	1200
2025-06-01	1194.2	1191.8	1200	1200
2025-05-01	1194.2	1191.8	1200	1200
2025-04-01	1194.2	1191.8	1200	1200
2025-03-01	1194.2	1191.8	1200	1200
2025-02-01	1194.2	1191.1	1200	1200
2025-01-01	1194.2	1191.1	1200	1200
2024-12-01	1194.2	1191.1	1200	1200
2024-11-01	1194.2	1191.1	1200	1200
2024-10-01	1194.2	1191.1	1200	1200
2024-09-01	1194.2	1191.1	1200	1200
2024-08-01	1194.2	1191.1	1200	1200
2024-07-01	1194.2	1191.1	1200	1200
2024-09-01	1194.2	1191.1	1200	1200
2024-05-01	1194.2	1191.1	1200	1200
2024-04-01	1194.2	1191.1	1200	1200
2024-03-01	1194.2	1191.1	1200	1200
2024-02-01	1194.2	1191.1	1200	1200
2024-01-01	1194.2	1191.1	1200	1200
2023-12-01	1194.2	1191.1	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	Paarl Boys' High School Chess Festival 2025 (Primary Schools)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	1	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U13 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Paarl Boys' High School Chess Festival 2025 (Primary Schools)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	1	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U13 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
4	Cape Winelands Schools Prestige 2023 (U11 Boys)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	5	1.5	Yes	Analysis
5	Cape Winelands Schools Chess - Trials 1 2023 (U11 Boys)	2023-02-18	2023-02-18	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Leon)				Opponent Segals, K (Kenzo)
2	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 0.5
		Opponent Bergstedt, G (Grayson)				Opponent Erens, E (Ethan)
3	1	Tournament Paarl Boys' High School Chess Festival 2025				Tournament Paarl Boys' High School Chess Festival 2025
		date 2025-10-18	rnd 6	type Standard	result 1	date 2025-10-18	rnd 6	type Standard	result 1
		Opponent Brits, C (Connor)				Opponent Brits, C (Connor)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 0.5
		Opponent Bergstedt, G (Grayson)				Opponent Erens, E (Ethan)
2	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 2	type Standard	result 1
		Opponent Duncan, D (Dylan)				Opponent Duncan, D (Dylan)
3	1	Tournament Cape Winelands Schools Prestige 2023				Tournament Cape Winelands Schools Prestige 2023
		date 2023-03-11	rnd 5	type Standard	result 0.5	date 2023-03-11	rnd 5	type Standard	result 0.5
		Opponent Amsterdam, J (Jodan)				Opponent Amsterdam, J (Jodan)

#	Games	Start				End
1	3	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Leon)				Opponent Segals, K (Kenzo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Leon)				Opponent Segals, K (Kenzo)
2	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Bergstedt, G (Grayson)				Opponent Bergstedt, G (Grayson)
3	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 2	type Standard	result 1
		Opponent Duncan, D (Dylan)				Opponent Duncan, D (Dylan)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Bergstedt, G (Grayson)				Opponent Bergstedt, G (Grayson)
2	1	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 2	type Standard	result 1	date 2025-02-22	rnd 2	type Standard	result 1
		Opponent Duncan, D (Dylan)				Opponent Duncan, D (Dylan)
3	1	Tournament Cape Winelands Schools Prestige 2023				Tournament Cape Winelands Schools Prestige 2023
		date 2023-03-11	rnd 3	type Standard	result 1	date 2023-03-11	rnd 3	type Standard	result 1
		Opponent Jansen, M (Marloe)				Opponent Jansen, M (Marloe)

#	Games	Start				End
1	3	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Leon)				Opponent Segals, K (Kenzo)

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	Koert ,D (Dane)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Koert ,D (Dane)	1	1419.5	994.5	1	1414.3	994.5	0	0	0	0	0	0
2	Abrahams ,F (Frielano)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Abrahams ,F (Frielano)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	King ,C (Carlisle)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	King ,C (Carlisle)	1	1226.9	801.9	1	1232	801.9	0	0	0	0	0	0
4	Kuypers ,P (Parker)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Kuypers ,P (Parker)	1	1219.9	794.9	1	1200	794.9	0	0	0	0	0	0
5	Duncan ,D (Dylan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Duncan ,D (Dylan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Amsterdam ,J (Jodan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Amsterdam ,J (Jodan)	1	1183.4	1183.4	1	1198	1183.4	0	0	0	0	0	0
7	Jansen ,M (Marloe)	1	1	425	1	1	425	0	0	0	0	0	0
7	Jansen ,M (Marloe)	1	1252.1	1677.1	1	1259.3	1677.1	0	0	0	0	0	0
8	Julies ,D (Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Julies ,D (Daniel)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Erens ,E (Ethan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Erens ,E (Ethan)	1	1135.7	1135.7	1	1136	1135.7	0	0	0	0	0	0
10	Bergstedt ,G (Grayson)	1	1	425	1	1	425	0	0	0	0	0	0
10	Bergstedt ,G (Grayson)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Visser, I (Izak)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms