Chess South Africa Ratings Database

PLAYER PAGE

Personal

Arends, SJ (Sergio Junior)

Chess SA id

106067337

FIDE id

Date of birth

2006-04-28 (U20)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2021-10-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1136.8	1134.2	847.4	783
Raw rating	1136.8	1134.2	847.4	783
Weighted rating	1136.8	1134.2	847.4	783
Weighted performance	343.6	222.6	0	0
Floor	642.3	637.9	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	181.4	182.1	274	300.4
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2019-12-01	1200 2024-02-01
Highest raw rating	1142.3 2019-05-01	1137.9 2019-05-01	847.4 2024-02-01	783 2024-02-01
Highest weighted rating	1142.3 2024-11-01	1137.9 2024-11-01	847.4 2024-11-01	783 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1136.8	1134.2	847.4	783
Analysis
Rating	1136.8	1134.2	847.4	783
Raw rating	1136.8	1134.2	847.4	783
Weighted rating	1136.8	1134.2	847.4
Weighted performance	343.6	222.6	0
K-factor	40	40	40	40
Floor	642.3	637.9	500	500
Max/Min rating change allowed	181.4	182.1	274	300.4
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	1136.8	1134.2	847.4	783
New weighted rating	1136.8	1134.2	847.4	783
New weighted performance	343.3	222.2	0	0
Temp new rating	1136.8	1134.2	847.4	783
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1136.8	1134.2	847.4	783
New K-factor	40	40	40	40
New floor	642.3	637.9	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	6	0	6
History	175	144	31

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
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	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	50	25.5	51	8.5	1071.7	1080.2
Standard	44	23.5	53.41	29	1037.5	1066.5
Rapid	6	2	33.33	-141.7	1322.8	1181.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1136.8	1134.2	847.4	783
2025-09-01	1136.8	1134.2	847.4	783
2025-08-01	1136.8	1134.2	847.4	783
2025-07-01	1136.8	1134.2	847.4	783
2025-06-01	1136.8	1134.2	847.4	783
2025-05-01	1136.8	1134.2	847.4	783
2025-04-01	1136.8	1134.2	847.4	783
2025-03-01	1136.8	1134.2	847.4	783
2025-02-01	1136.8	1134.2	847.4	783
2025-01-01	1136.8	1134.2	847.4	783
2024-12-01	1136.8	1134.2	847.4	783
2024-11-01	1136.8	1134.2	847.4	783
2024-10-01	1136.8	1134.2	847.4	783
2024-09-01	1136.8	1134.2	847.4	783
2024-08-01	1136.8	1134.2	847.4	783
2024-07-01	1136.8	1134.2	847.4	783
2024-06-01	1136.8	1134.2	847.4	783
2024-08-01	1136.8	1134.2	847.4	783
2024-04-01	1136.8	1134.2	847.4	783
2024-03-01	1136.8	1134.2	847.4	783
2024-02-01	1136.8	1134.2	847.4	783
2024-01-01	1136.8	1134.2	847.4	783
2023-12-01	1136.8	1134.2	847.4	783
2023-11-01	1136.8	1134.2	847.4	783

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	Alekhine Chess Club Rapid 2021	2021-10-02	2021-10-02	Rapid	Nelson Mandela Bay (ENM)	7	6	2	Yes	Analysis
2	NMBYCC Closed 2019 (U14)	2019-07-26	2019-07-27	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
3	Nelson Mandela Bay Junior Trials 4 2019 (U14)	2019-07-12	2019-07-13	Standard	Nelson Mandela Bay (ENM)	6	5	3	Yes	Analysis
4	NMBJCU Trials 3 2019 (U14)	2019-05-10	2019-05-11	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
5	Nelson Mandela Bay Junior Chess Trials 2 2019 (U14)	2019-04-05	2019-04-06	Standard	Nelson Mandela Bay (ENM)	6	4	4	Yes	Analysis
6	NMBCU Trials 1 2019 (U14)	2019-03-08	2019-03-09	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
7	Alekhine Open Chess Tournament 2018 (B)	2018-05-04	2018-05-05	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
8	NMB First Trails 2018 (U14)	2018-03-23	2018-03-24	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
9	South African Junior Team Championships 2017 (U12B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	1.5	Yes	Analysis

#	Games	Start				End
1	7	Tournament Nelson Mandela Bay Junior Chess Trials 2 2019				Tournament NMBJCU Trials 3 2019
		date 2019-04-06	rnd 3	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Hickman, K (Kayla)				Opponent Bruintjies, HC (Hailey)
2	2	Tournament Nelson Mandela Bay Junior Trials 4 2019				Tournament Nelson Mandela Bay Junior Trials 4 2019
		date 2019-07-13	rnd 4	type Standard	result 1	date 2019-07-13	rnd 5	type Standard	result 1
		Opponent Venter, S (Sarah)				Opponent Bhika, Z (Zunaid)
3	2	Tournament NMBCU Trials 1 2019				Tournament NMBCU Trials 1 2019
		date 2019-03-09	rnd 3	type Standard	result 1	date 2019-03-09	rnd 4	type Standard	result 1
		Opponent Rotherham, M (Michael)				Opponent Reddy, E (Evania)

#	Games	Start				End
1	7	Tournament Nelson Mandela Bay Junior Chess Trials 2 2019				Tournament NMBJCU Trials 3 2019
		date 2019-04-06	rnd 3	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Hickman, K (Kayla)				Opponent Bruintjies, HC (Hailey)
2	2	Tournament Nelson Mandela Bay Junior Trials 4 2019				Tournament Nelson Mandela Bay Junior Trials 4 2019
		date 2019-07-13	rnd 4	type Standard	result 1	date 2019-07-13	rnd 5	type Standard	result 1
		Opponent Venter, S (Sarah)				Opponent Bhika, Z (Zunaid)
3	2	Tournament NMBCU Trials 1 2019				Tournament NMBCU Trials 1 2019
		date 2019-03-09	rnd 3	type Standard	result 1	date 2019-03-09	rnd 4	type Standard	result 1
		Opponent Rotherham, M (Michael)				Opponent Reddy, E (Evania)

#	Games	Start				End
1	1	Tournament Alekhine Chess Club Rapid 2021				Tournament Alekhine Chess Club Rapid 2021
		date 2021-10-02	rnd 6	type Rapid	result 1	date 2021-10-02	rnd 6	type Rapid	result 1
		Opponent Balfour, A (Anesipho)				Opponent Balfour, A (Anesipho)
2	1	Tournament Alekhine Chess Club Rapid 2021				Tournament Alekhine Chess Club Rapid 2021
		date 2021-10-02	rnd 4	type Rapid	result 1	date 2021-10-02	rnd 4	type Rapid	result 1
		Opponent Lottering, D (David)				Opponent Lottering, D (David)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Nelson Mandela Bay Junior Chess Trials 2 2019				Tournament NMBJCU Trials 3 2019
		date 2019-04-06	rnd 3	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Hickman, K (Kayla)				Opponent Bruintjies, HC (Hailey)
2	2	Tournament Nelson Mandela Bay Junior Trials 4 2019				Tournament Nelson Mandela Bay Junior Trials 4 2019
		date 2019-07-13	rnd 4	type Standard	result 1	date 2019-07-13	rnd 5	type Standard	result 1
		Opponent Venter, S (Sarah)				Opponent Bhika, Z (Zunaid)
3	2	Tournament NMBCU Trials 1 2019				Tournament NMBCU Trials 1 2019
		date 2019-03-09	rnd 3	type Standard	result 1	date 2019-03-09	rnd 4	type Standard	result 1
		Opponent Rotherham, M (Michael)				Opponent Reddy, E (Evania)

#	Games	Start				End
1	7	Tournament Nelson Mandela Bay Junior Chess Trials 2 2019				Tournament NMBJCU Trials 3 2019
		date 2019-04-06	rnd 3	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Hickman, K (Kayla)				Opponent Bruintjies, HC (Hailey)
2	2	Tournament Nelson Mandela Bay Junior Trials 4 2019				Tournament Nelson Mandela Bay Junior Trials 4 2019
		date 2019-07-13	rnd 4	type Standard	result 1	date 2019-07-13	rnd 5	type Standard	result 1
		Opponent Venter, S (Sarah)				Opponent Bhika, Z (Zunaid)
3	2	Tournament NMBCU Trials 1 2019				Tournament NMBCU Trials 1 2019
		date 2019-03-09	rnd 3	type Standard	result 1	date 2019-03-09	rnd 4	type Standard	result 1
		Opponent Rotherham, M (Michael)				Opponent Reddy, E (Evania)

#	Games	Start				End
1	1	Tournament Alekhine Chess Club Rapid 2021				Tournament Alekhine Chess Club Rapid 2021
		date 2021-10-02	rnd 6	type Rapid	result 1	date 2021-10-02	rnd 6	type Rapid	result 1
		Opponent Balfour, A (Anesipho)				Opponent Balfour, A (Anesipho)
2	1	Tournament Alekhine Chess Club Rapid 2021				Tournament Alekhine Chess Club Rapid 2021
		date 2021-10-02	rnd 4	type Rapid	result 1	date 2021-10-02	rnd 4	type Rapid	result 1
		Opponent Lottering, D (David)				Opponent Lottering, D (David)

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	Reddy ,E (Evania)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Reddy ,E (Evania)	3	850.5	992.2	3	876.3	992.2	0	0	0	0	0	0
2	Magadla ,L (Lathitha)	2	1	0	2	1	0	0	0	0	0	0	0
2	Magadla ,L (Lathitha)	2	1082.8	1082.8	2	1073.8	1082.8	0	0	0	0	0	0
3	Ramaele ,LL (Lerato Lunje)	2	1	0	2	1	0	0	0	0	0	0	0
3	Ramaele ,LL (Lerato Lunje)	2	750.5	750.5	2	765.6	750.5	0	0	0	0	0	0
4	Bruintjies ,HC (Hailey Carla)	2	1	0	1	1	425	1	0	-425	0	0	0
4	Bruintjies ,HC (Hailey Carla)	2	1371.8	1371.8	1	1331.5	1796.8	1	1070.4	946.8	0	0	0
5	Leeson ,CL (Calib Lee)	1	1	425	1	1	425	0	0	0	0	0	0
5	Leeson ,CL (Calib Lee)	1	1012.9	1437.9	1	1016.2	1437.9	0	0	0	0	0	0
6	Meise ,K (Keagen)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Meise ,K (Keagen)	1	1139.3	714.3	1	1139.3	714.3	0	0	0	0	0	0
7	Keuler ,WG (Wouter Gert)	1	1	425	1	1	425	0	0	0	0	0	0
7	Keuler ,WG (Wouter Gert)	1	770.8	1195.8	1	768.1	1195.8	0	0	0	0	0	0
8	Govindsamy ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Govindsamy ,M (Matthew)	1	1265.5	840.5	1	1240.1	840.5	0	0	0	0	0	0
9	Geyser ,K (Kobus)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Geyser ,K (Kobus)	1	1129	704	1	1129	704	0	0	0	0	0	0
10	Bosch ,MD (Michael Delenn)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Bosch ,MD (Michael Delenn)	1	1154	729	1	1158.9	729	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

Arends, SJ (Sergio Junior)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms