Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, R (Robin)

Chess SA id

1070308084

FIDE id

Date of birth

2007-02-05 (U20)

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

1204.2

Item	Main	Standard	Rapid	Blitz
Rating	1202.9	1211.7	1189.5	1200
Raw rating	1188.4	1190.4	1189.5	1200
Weighted rating	1202.9	1211.7	1188.1	1200
Weighted performance	0	0	0	0
Floor	711.8	724.4	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	168.6	168.1	168.3	165.8
Highest rating	1211.8 2024-12-01	1224.4 2024-12-01	1200 2024-07-01	1200 2024-10-01
Highest raw rating	1211.8 2024-12-01	1224.4 2024-12-01	1200 2024-07-01	1200 2024-10-01
Highest weighted rating	1211.8 2024-07-01	1214.6 2025-08-01	1200 2024-07-01	1200 2024-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-10-01	1200 2024-12-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.1	-1.4	0	0
New rating	1201.8	1210.2	1189.5	1200
Analysis
Rating	1202.9	1211.7	1189.5	1200
Raw rating	1188.4	1190.4	1189.5	1200
Weighted rating	1202.9	1211.7	1188.1
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	711.8	724.4	700	700
Max/Min rating change allowed	168.6	168.1	168.3	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	1188.4	1190.4	1189.5	1200
New weighted rating	1201.8	1210.2	1188	1200
New weighted performance	0	0	0	0
Temp new rating	1201.8	1210.2	1189.5	1200
Temp new rating +/-	-1.1	-1.4	0	0
Final new rating +/-	-1.1	-1.4	0	0
New rating	1201.8	1210.2	1189.5	1200
New K-factor	36	36	36	36
New floor	711.8	724.4	700	700

Item	Main	Standard	Rapid
	0	0	0
	4	4	0
	10	6	4
	0	0	0
	0	0	0
	0	0	0
History	14	10	4

Games since
	Main 14	Standard 10		Rapid 4		Blitz 0
Gender	Male
Age group	U20
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	1.5	37.5	-106.2	1186.8	1080.6
Standard	4	1.5	37.5	-106.2	1186.8	1080.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	14	6	42.86	-60.7	1236.4	1175.6
Standard	10	5	50	0	1203.8	1203.8
Rapid	4	1	25	-212.5	1317.8	1105.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1188.4	1190.4	1189.5	1200
2025-09-01	1188.4	1190.4	1189.5	1200
2025-08-01	1211.8	1224.4	1189.5	1200
2025-07-01	1211.8	1224.4	1189.5	1200
2025-06-01	1211.8	1224.4	1189.5	1200
2025-05-01	1211.8	1224.4	1189.5	1200
2025-04-01	1211.8	1224.4	1189.5	1200
2025-03-01	1211.8	1224.4	1189.5	1200
2025-02-01	1211.8	1224.4	1189	1200
2025-01-01	1211.8	1224.4	1177.6	1200
2024-12-01	1211.8	1224.4	1177.6	1200
2024-11-01	1189.2	1200	1177.6	1200
2024-10-01	1189.2	1200	1177.6	1200
2024-09-01	1189.2	1200	1177.6	1200
2024-08-01	1189.2	1200	1177.6	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 (U19)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	4	1.5	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 (U19)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	4	1.5	Yes	Analysis
2	Paarl Boys' High Chess Festival 2024 (C)	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
3	CT District North Top Schools 2024 (U18 Mixed)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	5	4	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament Paarl Boys' High Chess Festival 2024				Tournament Cape Town Metro North Top Schools 2025
		date 2024-10-05	rnd 4	type Standard	result 0.5	date 2025-08-01	rnd 1	type Standard	result 0.5
		Opponent Titus, M (Mcwillen)				Opponent Vermeulen, I (Inge)
2	3	Tournament CT District North Top Schools 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2024-10-04	rnd 2	type Standard	result 0.5
		Opponent Phaca, S (Sonezo)				Opponent Magwentshu, B (Bala)
3	2	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 0.5	date 2025-08-02	rnd 4	type Standard	result 0.5
		Opponent Ma, C (Chengyan)				Opponent Meyer, A (Adam)

#	Games	Start				End
1	4	Tournament Paarl Boys' High Chess Festival 2024				Tournament Cape Town Metro North Top Schools 2025
		date 2024-10-05	rnd 4	type Standard	result 0.5	date 2025-08-01	rnd 1	type Standard	result 0.5
		Opponent Titus, M (Mcwillen)				Opponent Vermeulen, I (Inge)
2	2	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 0.5	date 2025-08-02	rnd 4	type Standard	result 0.5
		Opponent Ma, C (Chengyan)				Opponent Meyer, A (Adam)
3	2	Tournament Paarl Boys' High Chess Festival 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-10-04	rnd 1	type Standard	result 1	date 2024-10-04	rnd 2	type Standard	result 0.5
		Opponent Zanato, D (Diego)				Opponent Magwentshu, B (Bala)

#	Games	Start				End
1	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2024-07-27	rnd 5	type Rapid	result 1
		Opponent Phaca, S (Sonezo)				Opponent Phaca, S (Sonezo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament CT District North Top Schools 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2024-10-04	rnd 1	type Standard	result 1
		Opponent Phaca, S (Sonezo)				Opponent Zanato, D (Diego)
2	1	Tournament Paarl Boys' High Chess Festival 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-10-05	rnd 5	type Standard	result 1	date 2024-10-05	rnd 5	type Standard	result 1
		Opponent Van Uytsel, H (Hanco)				Opponent Van Uytsel, H (Hanco)

#	Games	Start				End
1	1	Tournament Paarl Boys' High Chess Festival 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-10-05	rnd 5	type Standard	result 1	date 2024-10-05	rnd 5	type Standard	result 1
		Opponent Van Uytsel, H (Hanco)				Opponent Van Uytsel, H (Hanco)
2	1	Tournament Paarl Boys' High Chess Festival 2024				Tournament Paarl Boys' High Chess Festival 2024
		date 2024-10-04	rnd 1	type Standard	result 1	date 2024-10-04	rnd 1	type Standard	result 1
		Opponent Zanato, D (Diego)				Opponent Zanato, D (Diego)

#	Games	Start				End
1	1	Tournament CT District North Top Schools 2024				Tournament CT District North Top Schools 2024
		date 2024-07-27	rnd 5	type Rapid	result 1	date 2024-07-27	rnd 5	type Rapid	result 1
		Opponent Phaca, S (Sonezo)				Opponent Phaca, S (Sonezo)

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	Saaiman ,HF (Henri Frederik)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Saaiman ,HF (Henri Frederik)	1	1265.8	1265.8	1	1258.6	1265.8	0	0	0	0	0	0
2	Ma ,C (Chengyan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Ma ,C (Chengyan)	1	1031.3	1031.3	1	944.9	1031.3	0	0	0	0	0	0
3	Titus ,M (Mcwillen)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Titus ,M (Mcwillen)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
4	Vermeulen ,I (Inge)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Vermeulen ,I (Inge)	1	1306.3	1306.3	1	1315.7	1306.3	0	0	0	0	0	0
5	Zanato ,D (Diego)	1	1	425	1	1	425	0	0	0	0	0	0
5	Zanato ,D (Diego)	1	1204.3	1629.3	1	1204.4	1629.3	0	0	0	0	0	0
6	Meyer ,A (Adam)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Meyer ,A (Adam)	1	1207.2	1207.2	1	1200	1207.2	0	0	0	0	0	0
7	Magwentshu ,B (Bala)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Magwentshu ,B (Bala)	1	1210.3	1210.3	1	1212.8	1210.3	0	0	0	0	0	0
8	De Bruyn ,J (Jean-Paul)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	De Bruyn ,J (Jean-Paul)	1	1202.5	777.5	1	1199.4	777.5	0	0	0	0	0	0
9	Van Uytsel ,H (Hanco)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Uytsel ,H (Hanco)	1	1169.7	1594.7	1	1200	1594.7	0	0	0	0	0	0
10	Ebersohn ,D (Dewald)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Ebersohn ,D (Dewald)	1	1240.5	815.5	1	1218.4	815.5	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

Jacobs, R (Robin)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms