Chess South Africa Ratings Database

PLAYER PAGE

Personal

Vallejo, A (Alexander)

Chess SA id

105078965

FIDE id

Date of birth

2005-07-01 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-08-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	872.1	906.2	500	500
Raw rating	872.1	906.2	500	500
Weighted rating	871.9	906.1	500	500
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	264.6	252	449.5	449.5
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	872.1 2024-02-01	906.2 2024-02-01	500 2024-02-01	500 2024-02-01
Highest weighted rating	872.1 2024-11-01	906.2 2024-11-01	500 2024-11-01	500 2024-11-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	872.1	906.2	500	500
Analysis
Rating	872.1	906.2	500	500
Raw rating	872.1	906.2	500	500
Weighted rating	871.9	906.1	500
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	264.6	252	449.5	449.5
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	872.1	906.2	500	500
New weighted rating	872.1	906.2	500	500
New weighted performance	0	0	0	0
Temp new rating	872.1	906.2	500	500
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	872.1	906.2	500	500
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard
	0	0
	0	0
	0	0
	10	10
	5	5
	0	0
History	28	28

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	19	10	52.63	22.4	1190.3	1212.7
Standard	19	10	52.63	22.4	1190.3	1212.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	872.1	906.2	500	500
2025-09-30	872.1	906.2	500	500
2025-09-01	872.1	906.2	500	500
2025-08-01	872.1	906.2	500	500
2025-07-01	872.1	906.2	500	500
2025-06-01	872.1	906.2	500	500
2025-05-01	872.1	906.2	500	500
2025-04-01	872.1	906.2	500	500
2025-03-01	872.1	906.2	500	500
2025-02-01	872.1	906.2	500	500
2025-01-01	872.1	906.2	500	500
2024-12-01	872.1	906.2	500	500
2024-11-01	872.1	906.2	500	500
2024-10-01	872.1	906.2	500	500
2024-09-01	872.1	906.2	500	500
2024-08-01	872.1	906.2	500	500
2024-07-01	872.1	906.2	500	500
2024-09-01	872.1	906.2	500	500
2024-05-01	872.1	906.2	500	500
2024-04-01	872.1	906.2	500	500
2024-03-01	872.1	906.2	500	500
2024-02-01	872.1	906.2	500	500
2024-01-01	872.1	906.2	500	500
2023-12-01	806.1	863.6	500	500

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	Gauteng D7 Teams 2023 (U19)	2023-08-12	2023-08-12	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
2	Gauteng Schools D7 2023 (U18 Boys)	2023-05-20	2023-05-20	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
3	D7 Teams 2022 (U17+U19 Mixed)	2022-08-13	2022-08-13	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
4	D7 Primary School League 2023 (U13 Boys+Mixed)	2018-04-21	2018-04-21	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament D7 Teams 2022				Tournament Gauteng Schools D7 2023
		date 2022-08-13	rnd 4	type Standard	result 1	date 2023-05-20	rnd 2	type Standard	result 1
		Opponent Strydom, G (Giovanni)				Opponent Gafoor, Z (Zunade)
2	2	Tournament Gauteng D7 Teams 2023				Tournament Gauteng D7 Teams 2023
		date 2023-08-12	rnd 2	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Nyembe, L (Lidokuhle)				Opponent Mavuso, A (Albert)
3	2	Tournament D7 Primary School League 2023				Tournament D7 Primary School League 2023
		date 2018-04-21	rnd 3	type Standard	result 1	date 2018-04-21	rnd 4	type Standard	result 1
		Opponent Coetzer, L (Levi)				Opponent Cilliers, J (Janco)

#	Games	Start				End
1	4	Tournament D7 Teams 2022				Tournament Gauteng Schools D7 2023
		date 2022-08-13	rnd 4	type Standard	result 1	date 2023-05-20	rnd 2	type Standard	result 1
		Opponent Strydom, G (Giovanni)				Opponent Gafoor, Z (Zunade)
2	2	Tournament Gauteng D7 Teams 2023				Tournament Gauteng D7 Teams 2023
		date 2023-08-12	rnd 2	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Nyembe, L (Lidokuhle)				Opponent Mavuso, A (Albert)
3	2	Tournament D7 Primary School League 2023				Tournament D7 Primary School League 2023
		date 2018-04-21	rnd 3	type Standard	result 1	date 2018-04-21	rnd 4	type Standard	result 1
		Opponent Coetzer, L (Levi)				Opponent Cilliers, J (Janco)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament D7 Teams 2022				Tournament Gauteng Schools D7 2023
		date 2022-08-13	rnd 4	type Standard	result 1	date 2023-05-20	rnd 2	type Standard	result 1
		Opponent Strydom, G (Giovanni)				Opponent Gafoor, Z (Zunade)
2	2	Tournament Gauteng D7 Teams 2023				Tournament Gauteng D7 Teams 2023
		date 2023-08-12	rnd 2	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Nyembe, L (Lidokuhle)				Opponent Mavuso, A (Albert)
3	2	Tournament D7 Primary School League 2023				Tournament D7 Primary School League 2023
		date 2018-04-21	rnd 3	type Standard	result 1	date 2018-04-21	rnd 4	type Standard	result 1
		Opponent Coetzer, L (Levi)				Opponent Cilliers, J (Janco)

#	Games	Start				End
1	4	Tournament D7 Teams 2022				Tournament Gauteng Schools D7 2023
		date 2022-08-13	rnd 4	type Standard	result 1	date 2023-05-20	rnd 2	type Standard	result 1
		Opponent Strydom, G (Giovanni)				Opponent Gafoor, Z (Zunade)
2	2	Tournament Gauteng D7 Teams 2023				Tournament Gauteng D7 Teams 2023
		date 2023-08-12	rnd 2	type Standard	result 1	date 2023-08-12	rnd 3	type Standard	result 1
		Opponent Nyembe, L (Lidokuhle)				Opponent Mavuso, A (Albert)
3	2	Tournament D7 Primary School League 2023				Tournament D7 Primary School League 2023
		date 2018-04-21	rnd 3	type Standard	result 1	date 2018-04-21	rnd 4	type Standard	result 1
		Opponent Coetzer, L (Levi)				Opponent Cilliers, J (Janco)

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	Strydom ,G (Giovanni)	1	1	425	1	1	425	0	0	0	0	0	0
1	Strydom ,G (Giovanni)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Serobele ,K (Karabo)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Serobele ,K (Karabo)	1	1132.9	707.9	1	1119.2	707.9	0	0	0	0	0	0
3	Reichert ,JP (Johannes Petrus)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Reichert ,JP (Johannes Petrus)	1	1215.4	790.4	1	1217.2	790.4	0	0	0	0	0	0
4	Ngwane ,N (Ndabenhle)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Ngwane ,N (Ndabenhle)	1	1467.9	1042.9	1	1462.5	1042.9	0	0	0	0	0	0
5	Huisamen ,BB (Botha Brandt)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Huisamen ,BB (Botha Brandt)	1	1507.4	1082.4	1	1503.4	1082.4	0	0	0	0	0	0
6	Modisane ,O (Oratilwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Modisane ,O (Oratilwe)	1	1070.5	645.5	1	1044	645.5	0	0	0	0	0	0
7	Skasa ,T (Thando)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Skasa ,T (Thando)	1	1190.7	765.7	1	1187.2	765.7	0	0	0	0	0	0
8	Gafoor ,Z (Zunade)	1	1	425	1	1	425	0	0	0	0	0	0
8	Gafoor ,Z (Zunade)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Morake ,K (Kagiso)	1	1	425	1	1	425	0	0	0	0	0	0
9	Morake ,K (Kagiso)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Mpharoane ,C (Conny)	1	1	425	1	1	425	0	0	0	0	0	0
10	Mpharoane ,C (Conny)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Vallejo, A (Alexander)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms