Chess South Africa Ratings Database

PLAYER PAGE

Personal

Losper, Z (Zack)

Chess SA id

1130308023

FIDE id

Date of birth

2013-05-28 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1258.7	1272	1197.8	1200
Raw rating	1258.7	1272	1197.8	1200
Weighted rating	1208	1211.3	1197.4	1200
Weighted performance	0	0	0	0
Floor	758.7	772	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	152.5	149.7	166.3	165.8
Highest rating	1258.7 2025-09-01	1272 2025-09-01	1200 2024-07-01	1200 2024-07-01
Highest raw rating	1258.7 2025-09-01	1272 2025-09-01	1200 2024-07-01	1200 2024-07-01
Highest weighted rating	1203.4 2025-09-01	1205.8 2025-09-01	1200 2024-07-01	1200 2024-07-01
Highest weighted performance	1200 2024-12-01	1200 2024-07-01	1200 2024-12-01	1200 2024-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1258.7	1272	1197.8	1200
Analysis
Rating	1258.7	1272	1197.8	1200
Raw rating	1258.7	1272	1197.8	1200
Weighted rating	1208	1211.3	1197.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	758.7	772	700	700
Max/Min rating change allowed	152.5	149.7	166.3	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	1258.7	1272	1197.8	1200
New weighted rating	1212.4	1216.6	1197.4	1200
New weighted performance	0	0	0	0
Temp new rating	1258.7	1272	1197.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1258.7	1272	1197.8	1200
New K-factor	36	36	36	36
New floor	758.7	772	700	700

Item	Main	Standard	Rapid
	0	0	0
	4	4	0
	5	0	5
	0	0	0
	0	0	0
	0	0	0
History	9	4	5

Games since
	Main 9	Standard 4		Rapid 5		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
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	4	4	100	425	1199.9	1624.9
Standard	4	4	100	425	1199.9	1624.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	9	6	66.67	141.7	1240.8	1382.5
Standard	4	4	100	425	1199.9	1624.9
Rapid	5	2	40	-85	1273.5	1188.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1258.7	1272	1197.8	1200
2025-09-01	1258.7	1272	1197.8	1200
2025-08-01	1198.8	1200	1197.8	1200
2025-07-01	1198.8	1200	1197.8	1200
2025-06-01	1198.8	1200	1197.8	1200
2025-05-01	1198.8	1200	1197.8	1200
2025-04-01	1198.8	1200	1197.8	1200
2025-03-01	1198.8	1200	1197.8	1200
2025-02-01	1198.7	1200	1197.6	1200
2025-01-01	1197.4	1200	1195.2	1200
2024-12-01	1197.4	1200	1195.2	1200
2024-11-01	1197.4	1200	1195.2	1200
2024-10-01	1197.4	1200	1195.2	1200
2024-09-01	1197.4	1200	1195.2	1200
2024-08-01	1197.4	1200	1195.2	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	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
2023-11-01	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	Cape Town Metro North Top Schools 2025 (U13)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Metro North Top Schools 2025 (U13)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis
2	CT District North Top Schools 2024 (U11 Mixed)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-01	rnd 1	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Botha, J (Jason)				Opponent Jansen, T (Tirstan)
2	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2024-07-27	rnd 4	type Rapid	result 1
		Opponent Daniels, S (Shakur)				Opponent Daniels, S (Shakur)
3	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Faria, A (Adam)				Opponent Faria, A (Adam)

#	Games	Start				End
1	4	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-01	rnd 1	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Botha, J (Jason)				Opponent Jansen, T (Tirstan)

#	Games	Start				End
1	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2024-07-27	rnd 4	type Rapid	result 1
		Opponent Daniels, S (Shakur)				Opponent Daniels, S (Shakur)
2	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Faria, A (Adam)				Opponent Faria, A (Adam)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-01	rnd 1	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Botha, J (Jason)				Opponent Jansen, T (Tirstan)
2	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2024-07-27	rnd 4	type Rapid	result 1
		Opponent Daniels, S (Shakur)				Opponent Daniels, S (Shakur)
3	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Faria, A (Adam)				Opponent Faria, A (Adam)

#	Games	Start				End
1	4	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-01	rnd 1	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Botha, J (Jason)				Opponent Jansen, T (Tirstan)

#	Games	Start				End
1	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 4	type Rapid	result 1	date 2024-07-27	rnd 4	type Rapid	result 1
		Opponent Daniels, S (Shakur)				Opponent Daniels, S (Shakur)
2	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 2	type Rapid	result 1	date 2024-07-27	rnd 2	type Rapid	result 1
		Opponent Faria, A (Adam)				Opponent Faria, A (Adam)

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	Jansen ,T (Tirstan)	1	1	425	1	1	425	0	0	0	0	0	0
1	Jansen ,T (Tirstan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Spele ,I (Imange)	1	1	425	1	1	425	0	0	0	0	0	0
2	Spele ,I (Imange)	1	1199.8	1624.8	1	1200	1624.8	0	0	0	0	0	0
3	Johnson ,B (Breanna)	1	1	425	1	1	425	0	0	0	0	0	0
3	Johnson ,B (Breanna)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Botha ,J (Jason)	1	1	425	1	1	425	0	0	0	0	0	0
4	Botha ,J (Jason)	1	1199.8	1624.8	1	1199.7	1624.8	0	0	0	0	0	0
5	Calitz ,S (Steyn)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Calitz ,S (Steyn)	1	1335.7	910.7	0	0	0	1	1339.1	910.7	0	0	0
6	Louw ,L (Lukas)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Louw ,L (Lukas)	1	1473.6	1048.6	0	0	0	1	1421.5	1048.6	0	0	0
7	Faria ,A (Adam)	1	1	425	0	0	0	1	1	425	0	0	0
7	Faria ,A (Adam)	1	1181.2	1606.2	0	0	0	1	1200	1606.2	0	0	0
8	Singh ,A (Aadiv)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Singh ,A (Aadiv)	1	1177	752	0	0	0	1	1200	752	0	0	0
9	Daniels ,S (Shakur)	1	1	425	0	0	0	1	1	425	0	0	0
9	Daniels ,S (Shakur)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Losper, Z (Zack)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms