Chess South Africa Ratings Database

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Personal

Jacobs, Q (Querin)

Chess SA id

1120140070

FIDE id

Date of birth

2012-10-09 (U14)

Gender

Male

Region

Cape Winelands (WCW)

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	1056.8	1059.6	1130.3	1200
Raw rating	1056	1059.6	1115.3	1200
Weighted rating	1056.8	1048.5	1130.3	1200
Weighted performance	916.6	818.2	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	203.6	202.5	187.1	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.6	0	-1.9	0
New rating	1057.4	1059.6	1128.4	1200
Analysis
Rating	1056.8	1059.6	1130.3	1200
Raw rating	1056	1059.6	1115.3	1200
Weighted rating	1056.8	1048.5	1130.3
Weighted performance	916.6	818.2	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	203.6	202.5	187.1	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	1056	1059.6	1115.3	1200
New weighted rating	1057.4	1050.5	1128.4	1200
New weighted performance	916.3	817.8	0	0
Temp new rating	1057.4	1059.6	1128.4	1200
Temp new rating +/-	0.6	0	-1.9	0
Final new rating +/-	0.6	0	-1.9	0
New rating	1057.4	1059.6	1128.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	4	0	4
	26	10	16
	4	4	0
	15	15	0
	0	0	0
History	49	29	20

Games since
	Main 30	Standard 10		Rapid 20		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	1858		942		170
Male	1393		689		118
U14	402		211		48
U14 Male	275		140		32
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	1	25	-212.5	1196.6	984.1
Standard	0	0	0	0	0	0
Rapid	4	1	25	-212.5	1196.6	984.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	49	14.5	29.59	-173.5	1184	1010.6
Standard	29	8.5	29.31	-175.9	1179	1003.1
Rapid	20	6	30	-170	1191.3	1021.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1056	1059.6	1115.3	1200
2025-09-01	1056	1059.6	1115.3	1200
2025-08-01	1064.7	1059.6	1140.3	1200
2025-07-01	1064.7	1059.6	1140.3	1200
2025-06-01	1064.7	1059.6	1140.3	1200
2025-05-01	1064.7	1059.6	1140.3	1200
2025-04-01	1064.7	1059.6	1140.3	1200
2025-03-01	1064.7	1059.6	1140.3	1200
2025-02-01	1064.7	1059.6	1139.9	1200
2025-01-01	1064.7	1059.6	1113.6	1200
2024-12-01	1064.7	1059.6	1113.6	1200
2024-11-01	1064.7	1059.6	1113.6	1200
2024-10-01	1064.7	1059.6	1113.6	1200
2024-09-01	1064.7	1059.6	1113.6	1200
2024-08-01	1028.8	999.2	1113.6	1200
2024-07-01	1028.8	999.2	1113.6	1200
2024-06-01	1028.8	999.2	1113.6	1200
2024-08-01	1039.1	999.2	1147.1	1200
2024-04-01	1039.1	999.2	1147.1	1200
2024-03-01	1008.1	999.2	1128.4	1200
2024-02-01	1028.2	999.2	1200	1200
2024-01-01	1028.2	999.2	1200	1200
2023-12-01	1028.2	999.2	1200	1200
2023-11-01	1028.2	999.2	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 Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	0	0	No	Analysis
2	Cape Winelands Schools Development 2025 (U13 Boys)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	0	0	No	Analysis
2	Cape Winelands Schools Development 2025 (U13 Boys)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	4	1	Yes	Analysis
3	Western Cape Women�s Championship 2024 (Intermediate)	2024-08-10	2024-08-10	Standard	West Coast (WCU)	5	5	2	Yes	Analysis
4	Western Cape Women�s Championship 2024 (U14)	2024-08-09	2024-08-09	Standard	West Coast (WCU)	5	5	2.5	Yes	Analysis
5	Robertson Strategema Chess May 2024 (U13)	2024-05-11	2024-05-11	Rapid	Cape Winelands (WCW)	5	4	1	Yes	Analysis
6	Brave Knights 2024 (U13)	2024-03-16	2024-03-16	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
7	Cape Winelands Schools - PS Trials 1 2024 (U13 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	1	Yes	Analysis
8	CW Top Schools 2023 (U12)	2023-08-12	2023-08-12	Standard	West Coast (WCU)	5	4	0.5	Yes	Analysis
9	Western Cape Woman`s Championship 2022 (Open)	2022-09-02	2022-09-04	Standard	West Coast (WCU)	5	5	0.5	Yes	Analysis
10	Cape Winelands Schools Top Schools 2022 (U13 Mix)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	5	3	0	Yes	Analysis
11	Ceres Open 2022 (U12)	2022-04-23	2022-04-23	Standard	Cape Winelands (WCW)	7	7	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-09	rnd 3	type Standard	result 1	date 2024-08-09	rnd 5	type Standard	result 1
		Opponent Rooi, C (Chantelle)				Opponent Sekoe, G (Gabriel)
2	2	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-10	rnd 3	type Standard	result 1	date 2024-08-10	rnd 4	type Standard	result 1
		Opponent Solitwasji, L (Lilitha)				Opponent Engeland, K (Keaton)
3	2	Tournament Brave Knights 2024				Tournament Brave Knights 2024
		date 2024-03-16	rnd 4	type Rapid	result 1	date 2024-03-16	rnd 5	type Rapid	result 1
		Opponent Van Rooyen, B (Beuton)				Opponent Kanyepa, A (Austin)

#	Games	Start				End
1	3	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-09	rnd 3	type Standard	result 1	date 2024-08-09	rnd 5	type Standard	result 1
		Opponent Rooi, C (Chantelle)				Opponent Sekoe, G (Gabriel)
2	2	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-10	rnd 3	type Standard	result 1	date 2024-08-10	rnd 4	type Standard	result 1
		Opponent Solitwasji, L (Lilitha)				Opponent Engeland, K (Keaton)
3	1	Tournament CW Top Schools 2023				Tournament CW Top Schools 2023
		date 2023-08-12	rnd 4	type Standard	result 0.5	date 2023-08-12	rnd 4	type Standard	result 0.5
		Opponent Nel, L (Luzelle)				Opponent Nel, L (Luzelle)

#	Games	Start				End
1	2	Tournament Brave Knights 2024				Tournament Brave Knights 2024
		date 2024-03-16	rnd 4	type Rapid	result 1	date 2024-03-16	rnd 5	type Rapid	result 1
		Opponent Van Rooyen, B (Beuton)				Opponent Kanyepa, A (Austin)
2	1	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Liebenberg, B (Breshade)				Opponent Liebenberg, B (Breshade)
3	1	Tournament Robertson Strategema Chess May 2024				Tournament Robertson Strategema Chess May 2024
		date 2024-05-11	rnd 5	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Koopman, M (Maronashia)				Opponent Koopman, M (Maronashia)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-10	rnd 3	type Standard	result 1	date 2024-08-10	rnd 4	type Standard	result 1
		Opponent Solitwasji, L (Lilitha)				Opponent Engeland, K (Keaton)
2	2	Tournament Brave Knights 2024				Tournament Brave Knights 2024
		date 2024-03-16	rnd 4	type Rapid	result 1	date 2024-03-16	rnd 5	type Rapid	result 1
		Opponent Van Rooyen, B (Beuton)				Opponent Kanyepa, A (Austin)
3	1	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Liebenberg, B (Breshade)				Opponent Liebenberg, B (Breshade)

#	Games	Start				End
1	2	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-10	rnd 3	type Standard	result 1	date 2024-08-10	rnd 4	type Standard	result 1
		Opponent Solitwasji, L (Lilitha)				Opponent Engeland, K (Keaton)
2	1	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-09	rnd 5	type Standard	result 1	date 2024-08-09	rnd 5	type Standard	result 1
		Opponent Sekoe, G (Gabriel)				Opponent Sekoe, G (Gabriel)
3	1	Tournament Western Cape Women�s Championship 2024				Tournament Western Cape Women�s Championship 2024
		date 2024-08-09	rnd 3	type Standard	result 1	date 2024-08-09	rnd 3	type Standard	result 1
		Opponent Rooi, C (Chantelle)				Opponent Rooi, C (Chantelle)

#	Games	Start				End
1	2	Tournament Brave Knights 2024				Tournament Brave Knights 2024
		date 2024-03-16	rnd 4	type Rapid	result 1	date 2024-03-16	rnd 5	type Rapid	result 1
		Opponent Van Rooyen, B (Beuton)				Opponent Kanyepa, A (Austin)
2	1	Tournament Cape Winelands Schools Development 2025				Tournament Cape Winelands Schools Development 2025
		date 2025-08-02	rnd 5	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Liebenberg, B (Breshade)				Opponent Liebenberg, B (Breshade)
3	1	Tournament Robertson Strategema Chess May 2024				Tournament Robertson Strategema Chess May 2024
		date 2024-05-11	rnd 5	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Koopman, M (Maronashia)				Opponent Koopman, M (Maronashia)

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	Van Rooyen ,B (Beuton)	3	1.5	0	1	0.5	0	2	1	0	0	0	0
1	Van Rooyen ,B (Beuton)	3	1104.8	1104.8	1	1121.2	1104.8	2	1139	1104.8	0	0	0
2	Rooi ,C (Chantelle)	2	1	0	2	1	0	0	0	0	0	0	0
2	Rooi ,C (Chantelle)	2	1192.8	1192.8	2	1187.5	1192.8	0	0	0	0	0	0
3	Sekoe ,G (Gabriel)	2	2	425	2	2	425	0	0	0	0	0	0
3	Sekoe ,G (Gabriel)	2	1093.6	1518.6	2	1080.8	1518.6	0	0	0	0	0	0
4	Nel ,L (Luzelle)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
4	Nel ,L (Luzelle)	2	1145.4	932.9	2	1136.4	932.9	0	0	0	0	0	0
5	Rooi ,J (Josh-Lee)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Rooi ,J (Josh-Lee)	2	1150.7	725.7	2	1141	725.7	0	0	0	0	0	0
6	Dolf ,A (Anjay)	2	0	-425	1	0	-425	1	0	-425	0	0	0
6	Dolf ,A (Anjay)	2	1172.7	747.7	1	1200	747.7	1	1176.4	747.7	0	0	0
7	Koopman ,M (Maronashia)	2	2	425	0	0	0	2	2	425	0	0	0
7	Koopman ,M (Maronashia)	2	1153.8	1578.8	0	0	0	2	1134	1578.8	0	0	0
8	Johnston ,R (Reece)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Johnston ,R (Reece)	1	1176.2	751.2	1	1214.4	751.2	0	0	0	0	0	0
9	Solitwasji ,L (Lilitha)	1	1	425	1	1	425	0	0	0	0	0	0
9	Solitwasji ,L (Lilitha)	1	1174.6	1599.6	1	1200	1599.6	0	0	0	0	0	0
10	Van Den Berg ,A (Aaron)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Van Den Berg ,A (Aaron)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Jacobs, Q (Querin)

Ratings

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Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms