Chess South Africa Ratings Database

PLAYER PAGE

Personal

Serfontein, J (Jacques)

Chess SA id

1080315320

FIDE id

Date of birth

2008-09-22 (U18)

Gender

Male

Region

Sarah Baartman (ESB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1145.7

Item	Main	Standard	Rapid	Blitz
Rating	1214.3	1217	1200	1200
Raw rating	1214.3	1217	1200	1200
Weighted rating	1205	1206	1200	1200
Weighted performance	0	0	0	0
Floor	714.3	717	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	162.5	161.8	165.8	165.8
Highest rating	1214.3 2025-06-01	1217 2025-06-01	1200 2025-03-01	1200 2025-03-01
Highest raw rating	1214.3 2025-06-01	1217 2025-06-01	1200 2025-03-01	1200 2025-03-01
Highest weighted rating	1203.1 2025-08-01	1203.6 2025-08-01	1200 2025-03-01	1200 2025-03-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1214.3	1217	1200	1200
Analysis
Rating	1214.3	1217	1200	1200
Raw rating	1214.3	1217	1200	1200
Weighted rating	1205	1206	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	714.3	717	700	700
Max/Min rating change allowed	162.5	161.8	165.8	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	1214.3	1217	1200	1200
New weighted rating	1206	1207.1	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1214.3	1217	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1214.3	1217	1200	1200
New K-factor	36	36	36	36
New floor	714.3	717	700	700

Item	Main	Standard
	0	0
	10	10
	0	0
	0	0
	0	0
	0	0
History	10	10

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Sarah Baartman (ESB)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	10	3.5	35	-127.5	1269.8	1142.3
Standard	10	3.5	35	-127.5	1269.8	1142.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	3.5	35	-127.5	1269.8	1142.3
Standard	10	3.5	35	-127.5	1269.8	1142.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1214.3	1217	1200	1200
2025-09-01	1214.3	1217	1200	1200
2025-08-01	1214.3	1217	1200	1200
2025-07-01	1214.3	1217	1200	1200
2025-06-01	1214.3	1217	1200	1200
2025-05-01	1199.7	1199.7	1200	1200
2025-04-01	1199.5	1199.4	1200	1200
2025-03-01	1197.1	1196.5	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	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	SBDCA Closed 2025 (U18 Boys)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	6	5	2	Yes	Analysis
2	SBD Trials Graaff Reinet 12 April 2025 (U18)	2025-04-12	2025-04-12	Standard	Sarah Baartman (ESB)	5	0	0	No	Analysis
3	SBDCU Graaff-Reinet Trials 2025 (U18)	2025-02-15	2025-02-15	Standard	Sarah Baartman (ESB)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SBDCA Closed 2025 (U18 Boys)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	6	5	2	Yes	Analysis
2	SBD Trials Graaff Reinet 12 April 2025 (U18)	2025-04-12	2025-04-12	Standard	Sarah Baartman (ESB)	5	0	0	No	Analysis
3	SBDCU Graaff-Reinet Trials 2025 (U18)	2025-02-15	2025-02-15	Standard	Sarah Baartman (ESB)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	1	Tournament SBDCA Closed 2025				Tournament SBDCA Closed 2025
		date 2025-05-10	rnd 6	type Standard	result 1	date 2025-05-10	rnd 6	type Standard	result 1
		Opponent Mostert, M (Michyle)				Opponent Mostert, M (Michyle)
2	1	Tournament SBDCA Closed 2025				Tournament SBDCA Closed 2025
		date 2025-05-10	rnd 4	type Standard	result 1	date 2025-05-10	rnd 4	type Standard	result 1
		Opponent Nteyi, A (Abenathi)				Opponent Nteyi, A (Abenathi)
3	1	Tournament SBDCU Graaff-Reinet Trials 2025				Tournament SBDCU Graaff-Reinet Trials 2025
		date 2025-02-15	rnd 5	type Standard	result 1	date 2025-02-15	rnd 5	type Standard	result 1
		Opponent Uddin, S (Shurnesh)				Opponent Uddin, S (Shurnesh)

#	Games	Start				End
1	1	Tournament SBDCA Closed 2025				Tournament SBDCA Closed 2025
		date 2025-05-10	rnd 6	type Standard	result 1	date 2025-05-10	rnd 6	type Standard	result 1
		Opponent Mostert, M (Michyle)				Opponent Mostert, M (Michyle)
2	1	Tournament SBDCA Closed 2025				Tournament SBDCA Closed 2025
		date 2025-05-10	rnd 4	type Standard	result 1	date 2025-05-10	rnd 4	type Standard	result 1
		Opponent Nteyi, A (Abenathi)				Opponent Nteyi, A (Abenathi)
3	1	Tournament SBDCU Graaff-Reinet Trials 2025				Tournament SBDCU Graaff-Reinet Trials 2025
		date 2025-02-15	rnd 5	type Standard	result 1	date 2025-02-15	rnd 5	type Standard	result 1
		Opponent Uddin, S (Shurnesh)				Opponent Uddin, S (Shurnesh)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament SBDCA Closed 2025				Tournament SBDCA Closed 2025
		date 2025-05-10	rnd 6	type Standard	result 1	date 2025-05-10	rnd 6	type Standard	result 1
		Opponent Mostert, M (Michyle)				Opponent Mostert, M (Michyle)
2	1	Tournament SBDCA Closed 2025				Tournament SBDCA Closed 2025
		date 2025-05-10	rnd 4	type Standard	result 1	date 2025-05-10	rnd 4	type Standard	result 1
		Opponent Nteyi, A (Abenathi)				Opponent Nteyi, A (Abenathi)
3	1	Tournament SBDCU Graaff-Reinet Trials 2025				Tournament SBDCU Graaff-Reinet Trials 2025
		date 2025-02-15	rnd 5	type Standard	result 1	date 2025-02-15	rnd 5	type Standard	result 1
		Opponent Uddin, S (Shurnesh)				Opponent Uddin, S (Shurnesh)

#	Games	Start				End
1	1	Tournament SBDCA Closed 2025				Tournament SBDCA Closed 2025
		date 2025-05-10	rnd 6	type Standard	result 1	date 2025-05-10	rnd 6	type Standard	result 1
		Opponent Mostert, M (Michyle)				Opponent Mostert, M (Michyle)
2	1	Tournament SBDCA Closed 2025				Tournament SBDCA Closed 2025
		date 2025-05-10	rnd 4	type Standard	result 1	date 2025-05-10	rnd 4	type Standard	result 1
		Opponent Nteyi, A (Abenathi)				Opponent Nteyi, A (Abenathi)
3	1	Tournament SBDCU Graaff-Reinet Trials 2025				Tournament SBDCU Graaff-Reinet Trials 2025
		date 2025-02-15	rnd 5	type Standard	result 1	date 2025-02-15	rnd 5	type Standard	result 1
		Opponent Uddin, S (Shurnesh)				Opponent Uddin, S (Shurnesh)

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	Kruger ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Kruger ,M (Matthew)	1	1219.8	794.8	1	1219.6	794.8	0	0	0	0	0	0
2	Powell ,D (Dominic)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Powell ,D (Dominic)	1	1625.6	1200.6	1	1609.5	1200.6	0	0	0	0	0	0
3	Uddin ,S (Shurnesh)	1	1	425	1	1	425	0	0	0	0	0	0
3	Uddin ,S (Shurnesh)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Papu ,B (Bunakho)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Papu ,B (Bunakho)	1	1417.5	992.5	1	1417.7	992.5	0	0	0	0	0	0
5	Nteyi ,A (Abenathi)	1	1	425	1	1	425	0	0	0	0	0	0
5	Nteyi ,A (Abenathi)	1	1205.8	1630.8	1	1206.4	1630.8	0	0	0	0	0	0
6	Mostert ,M (Michyle)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Mostert ,M (Michyle)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Tadesse ,L (Lina)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Tadesse ,L (Lina)	1	1097.8	672.8	1	1078.9	672.8	0	0	0	0	0	0
8	Mostert ,M (Michyle)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mostert ,M (Michyle)	1	1251.4	1676.4	1	1262	1676.4	0	0	0	0	0	0
9	Booi ,J (Junior)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Booi ,J (Junior)	1	1300.9	875.9	1	1289.1	875.9	0	0	0	0	0	0
10	Jacobus ,M (Mordegai)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Jacobus ,M (Mordegai)	1	1179.8	1179.8	1	1172.4	1179.8	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

Serfontein, J (Jacques)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms