Chess South Africa Ratings Database

PLAYER PAGE

Personal

Davidse, Z (Zac)

Chess SA id

1110149777

FIDE id

Date of birth

2011-03-23 (U16)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-02-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1099.4	1162.4	1083.2	1200
Raw rating	1099.4	1162.4	1083.2	1200
Weighted rating	1097	1162.4	1080.2	1200
Weighted performance	718	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	191.4	174.9	195.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1099.4	1162.4	1083.2	1200
Analysis
Rating	1099.4	1162.4	1083.2	1200
Raw rating	1099.4	1162.4	1083.2	1200
Weighted rating	1097	1162.4	1080.2
Weighted performance	718	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	191.4	174.9	195.8	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	1099.4	1162.4	1083.2	1200
New weighted rating	1097.2	1162.4	1080.6	1200
New weighted performance	717.7	0	0	0
Temp new rating	1099.4	1162.4	1083.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1099.4	1162.4	1083.2	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	6	0	6
	21	5	16
	0	0	0
	0	0	0
History	27	5	22

Games since
	Main 11	Standard 0		Rapid 11		Blitz 0
Gender	Male
Age group	U16
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	27	8	29.63	-173.1	1198.2	1025
Standard	5	1.5	30	-170	1210	1040
Rapid	22	6.5	29.55	-173.9	1195.5	1021.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1099.4	1162.4	1083.2	1200
2025-09-01	1099.4	1162.4	1083.2	1200
2025-08-01	1099.4	1162.4	1083.2	1200
2025-07-01	1099.4	1162.4	1083.2	1200
2025-06-01	1099.4	1162.4	1083.2	1200
2025-05-01	1099.4	1162.4	1083.2	1200
2025-04-01	1099.4	1162.4	1083.2	1200
2025-03-01	1099.4	1162.4	1083.2	1200
2025-02-01	1099.4	1162.4	1083.2	1200
2025-01-01	1092.7	1162.4	1076	1200
2024-12-01	1092.7	1162.4	1076	1200
2024-11-01	1092.7	1162.4	1076	1200
2024-10-01	1092.7	1162.4	1076	1200
2024-09-01	1092.7	1162.4	1076	1200
2024-08-01	1092.7	1162.4	1076	1200
2024-07-01	1092.7	1162.4	1076	1200
2024-06-01	1092.7	1162.4	1076	1200
2024-08-01	1092.7	1162.4	1076	1200
2024-04-01	1092.7	1162.4	1076	1200
2024-03-01	1092.7	1162.4	1076	1200
2024-02-01	1099.6	1162.4	1072	1200
2024-01-01	1099.6	1162.4	1072	1200
2023-12-01	1099.6	1162.4	1072	1200
2023-11-01	1099.6	1162.4	1072	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 - PS Trials 1 2024 (U13 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis
2	Worcester Knock-Out 2023 (U13 Boys)	2023-10-14	2023-10-14	Rapid	Cape Winelands (WCW)	6	5	0	Yes	Analysis
3	Stellenbosch Primary Chess Tournament 2023 (U14)	2023-08-19	2023-08-19	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	Rhenish Primary Tournament 2023 (U14)	2023-05-13	2023-05-13	Rapid	Cape Winelands (WCW)	6	5	1.5	Yes	Analysis
5	Cape Winelands Schools Chess - Trials 1 2023 (U13 Boys)	2023-02-18	2023-02-18	Standard	Cape Winelands (WCW)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 2	type Rapid	result 1	date 2023-08-19	rnd 3	type Rapid	result 1
		Opponent Zulu, L (Lwazi)				Opponent Adams, T (Tariq)
2	2	Tournament Cape Winelands Schools Chess - Trials 1 2023				Tournament Rhenish Primary Tournament 2023
		date 2023-02-18	rnd 5	type Standard	result 0.5	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Hamann, L (Louis)				Opponent Kadji, S (Somila)
3	1	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 5	type Rapid	result 1
		Opponent Muvumbi, L (Leeroy)				Opponent Muvumbi, L (Leeroy)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Chess - Trials 1 2023				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2023-02-18	rnd 5	type Standard	result 0.5	date 2023-02-18	rnd 5	type Standard	result 0.5
		Opponent Hamann, L (Louis)				Opponent Hamann, L (Louis)
2	1	Tournament Cape Winelands Schools Chess - Trials 1 2023				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Van Der Walt, S (Sebastian)				Opponent Van Der Walt, S (Sebastian)

#	Games	Start				End
1	2	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 2	type Rapid	result 1	date 2023-08-19	rnd 3	type Rapid	result 1
		Opponent Zulu, L (Lwazi)				Opponent Adams, T (Tariq)
2	1	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 5	type Rapid	result 1
		Opponent Muvumbi, L (Leeroy)				Opponent Muvumbi, L (Leeroy)
3	1	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 1	type Rapid	result 1	date 2024-02-10	rnd 1	type Rapid	result 1
		Opponent Jeacocks, E (Ezhekiel)				Opponent Jeacocks, E (Ezhekiel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 2	type Rapid	result 1	date 2023-08-19	rnd 3	type Rapid	result 1
		Opponent Zulu, L (Lwazi)				Opponent Adams, T (Tariq)
2	1	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 5	type Rapid	result 1
		Opponent Muvumbi, L (Leeroy)				Opponent Muvumbi, L (Leeroy)
3	1	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 1	type Rapid	result 1	date 2024-02-10	rnd 1	type Rapid	result 1
		Opponent Jeacocks, E (Ezhekiel)				Opponent Jeacocks, E (Ezhekiel)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Chess - Trials 1 2023				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2023-02-18	rnd 2	type Standard	result 1	date 2023-02-18	rnd 2	type Standard	result 1
		Opponent Van Der Walt, S (Sebastian)				Opponent Van Der Walt, S (Sebastian)

#	Games	Start				End
1	2	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 2	type Rapid	result 1	date 2023-08-19	rnd 3	type Rapid	result 1
		Opponent Zulu, L (Lwazi)				Opponent Adams, T (Tariq)
2	1	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 5	type Rapid	result 1	date 2024-02-10	rnd 5	type Rapid	result 1
		Opponent Muvumbi, L (Leeroy)				Opponent Muvumbi, L (Leeroy)
3	1	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 1	type Rapid	result 1	date 2024-02-10	rnd 1	type Rapid	result 1
		Opponent Jeacocks, E (Ezhekiel)				Opponent Jeacocks, E (Ezhekiel)

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	Hamann ,L (Louis)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Hamann ,L (Louis)	1	1188.2	1188.2	1	1200	1188.2	0	0	0	0	0	0
2	Springveldt ,L (Lael)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Springveldt ,L (Lael)	1	1283.9	858.9	1	1277.6	858.9	0	0	0	0	0	0
3	Fourie ,X (Xavier)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Fourie ,X (Xavier)	1	1164.9	739.9	1	1187.5	739.9	0	0	0	0	0	0
4	Adams ,T (Tariq)	1	1	425	0	0	0	1	1	425	0	0	0
4	Adams ,T (Tariq)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
5	Swanepoel ,L (Leighton)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Swanepoel ,L (Leighton)	1	1200	775	0	0	0	1	1200	775	0	0	0
6	Kaji ,S (Somila)	1	1	425	0	0	0	1	1	425	0	0	0
6	Kaji ,S (Somila)	1	1169.8	1594.8	0	0	0	1	1140	1594.8	0	0	0
7	Kemp ,F (Francois)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Kemp ,F (Francois)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Small ,Q (Quade)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Small ,Q (Quade)	1	1403.1	978.1	0	0	0	1	1379.7	978.1	0	0	0
9	Alford ,N (Nathan)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
9	Alford ,N (Nathan)	1	1159.7	1159.7	0	0	0	1	1138	1159.7	0	0	0
10	Blaauws ,J (Joshua)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Blaauws ,J (Joshua)	1	1150.4	725.4	0	0	0	1	1115.6	725.4	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Davidse, Z (Zac)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms