Chess South Africa Ratings Database

PLAYER PAGE

Personal

Serfontein, C (Christiaan Jacobus)

Chess SA id

1030105421

FIDE id

Date of birth

2003-04-25 (Adult)

Gender

Male

Region

Mangaung (FMB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-01-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1376.4	1373.8	1205.6	1176.4
Raw rating	1376.4	1373.8	1205.6	1176.4
Weighted rating	1376.4	1373.8	1205.6	1176.4
Weighted performance	485.2	364.5	0	0
Floor	883.4	884.2	705.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	129	129.4	164.5	171.5
Highest rating	1398.5 2019-10-01	1399.3 2019-10-01	1223.9 2022-01-01	1200 2018-10-01
Highest raw rating	1383.4 2019-12-01	1384.2 2019-12-01	1205.6 2024-02-01	1200 2019-12-01
Highest weighted rating	1383.4 2025-02-01	1384.2 2021-10-01	1205.6 2024-02-01	1200 2018-10-01
Highest weighted performance	1398.5 2019-10-01	1399.3 2019-10-01	1223.9 2022-01-01	1200 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1376.4	1373.8	1205.6	1176.4
Analysis
Rating	1376.4	1373.8	1205.6	1176.4
Raw rating	1376.4	1373.8	1205.6	1176.4
Weighted rating	1376.4	1373.8	1205.6
Weighted performance	485.2	364.5	0
K-factor	36	36	36	36
Floor	883.4	884.2	705.6	700
Max/Min rating change allowed	129	129.4	164.5	171.5
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	1376.4	1373.8	1205.6	1176.4
New weighted rating	1376.4	1373.8	1205.6	1176.4
New weighted performance	477.4	356.4	0	0
Temp new rating	1376.4	1373.8	1205.6	1176.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1376.4	1373.8	1205.6	1176.4
New K-factor	36	36	36	36
New floor	883.4	884.2	705.6	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	5	0	5	0
	0	0	0	0
History	70	58	5	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Mangaung (FMB)
Province	Free State (FS)
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	70	36.5	52.14	18.2	1248.2	1266.4
Standard	58	31	53.45	29.3	1208.7	1238
Rapid	5	3.5	70	170	1259.7	1429.7
Blitz	7	2	28.57	-182.1	1566.9	1384.8

Date	Main	Standard	Rapid	Blitz
2025-11-01	1376.4	1373.8	1205.6	1176.4
2025-09-30	1376.4	1373.8	1205.6	1176.4
2025-09-01	1376.4	1373.8	1205.6	1176.4
2025-08-01	1376.4	1373.8	1205.6	1176.4
2025-07-01	1376.4	1373.8	1205.6	1176.4
2025-06-01	1376.4	1373.8	1205.6	1176.4
2025-05-01	1376.4	1373.8	1205.6	1176.4
2025-04-01	1376.4	1373.8	1205.6	1176.4
2025-03-01	1376.4	1373.8	1205.6	1176.4
2025-02-01	1376.4	1373.8	1205.6	1176.4
2025-01-01	1376.4	1373.8	1205.6	1176.4
2024-12-01	1376.4	1373.8	1205.6	1176.4
2024-11-01	1376.4	1373.8	1205.6	1176.4
2024-10-01	1376.4	1373.8	1205.6	1176.4
2024-09-01	1376.4	1373.8	1205.6	1176.4
2024-08-01	1376.4	1373.8	1205.6	1176.4
2024-07-01	1376.4	1373.8	1205.6	1176.4
2024-09-01	1376.4	1373.8	1205.6	1176.4
2024-05-01	1376.4	1373.8	1205.6	1176.4
2024-04-01	1376.4	1373.8	1205.6	1176.4
2024-03-01	1376.4	1373.8	1205.6	1176.4
2024-02-01	1376.4	1373.8	1205.6	1176.4
2024-01-01	1376.4	1373.8	1205.6	1176.4
2023-12-01	1376.4	1373.8	1205.6	1176.4

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	Mangaung Metro Chess 22 January 2022 (A)	2022-01-22	2022-01-22	Rapid	Mangaung (FMB)	5	5	3.5	Yes	Analysis
2	Mangaung Metro Chess February 2020 (A)	2020-02-21	2020-02-22	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
3	2019 South African Juior Blitz Championship (A)	2020-01-05	2020-01-05	Blitz	4 Knights (4K)	7	7	2	Yes	Analysis
4	2019 South African Junior Team Championships (U18A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
5	Mangaung Metro Chess October 2019 (B)	2019-10-11	2019-10-12	Standard	Mangaung (FMB)	5	5	4.5	Yes	Analysis
6	Mangaung Metro Chess 16-17 August 2019 (A+B)	2019-08-16	2019-08-17	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
7	Mangaung Metro July Trials 2019 (U18)	2019-07-19	2019-07-20	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
8	Inter Regional Chess Championship 2019 (U18)	2019-05-10	2019-05-11	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
9	Mangaung Metro Chess 15-16 March 2019 (B)	2019-03-15	2019-03-16	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
10	Mangaung Metro Chess 1-2 February 2019 (B)	2019-02-01	2019-02-02	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
11	Mangaung Metro Chess 18-19 January 2019 (C)	2019-01-18	2019-01-19	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
12	Courteney Page 2018 (U18+Open)	2018-09-07	2018-09-08	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
13	Free State Open 2018 (B)	2018-08-17	2018-08-18	Standard	Mangaung (FMB)	6	6	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament Mangaung Metro Chess 16-17 August 2019				Tournament Mangaung Metro Chess October 2019
		date 2019-08-17	rnd 4	type Standard	result 1	date 2019-10-12	rnd 5	type Standard	result 1
		Opponent Van Rooyen, H (Hanro)				Opponent Maile, E (Edward)
2	4	Tournament Mangaung Metro Chess 22 January 2022				Tournament Mangaung Metro Chess 22 January 2022
		date 2022-01-22	rnd 1	type Rapid	result 1	date 2022-01-22	rnd 4	type Rapid	result 1
		Opponent Mofokeng, N (Nyakalo)				Opponent Rossouw, J (Johrne)
3	3	Tournament Mangaung Metro Chess February 2020				Tournament Mangaung Metro Chess February 2020
		date 2020-02-21	rnd 2	type Standard	result 1	date 2020-02-22	rnd 4	type Standard	result 1
		Opponent Mutambala, B (Baraka)				Opponent Holsa, J (Jorma Holsa)

#	Games	Start				End
1	7	Tournament Mangaung Metro Chess 16-17 August 2019				Tournament Mangaung Metro Chess October 2019
		date 2019-08-17	rnd 4	type Standard	result 1	date 2019-10-12	rnd 5	type Standard	result 1
		Opponent Van Rooyen, H (Hanro)				Opponent Maile, E (Edward)
2	3	Tournament Mangaung Metro Chess February 2020				Tournament Mangaung Metro Chess February 2020
		date 2020-02-21	rnd 2	type Standard	result 1	date 2020-02-22	rnd 4	type Standard	result 1
		Opponent Mutambala, B (Baraka)				Opponent Holsa, J (Jorma Holsa)
3	3	Tournament Mangaung Metro July Trials 2019				Tournament Mangaung Metro July Trials 2019
		date 2019-07-20	rnd 3	type Standard	result 1	date 2019-07-20	rnd 5	type Standard	result 1
		Opponent Steenkamp, F (Fransien)				Opponent Moshoeshoe, M (Maletapata)

#	Games	Start				End
1	4	Tournament Mangaung Metro Chess 22 January 2022				Tournament Mangaung Metro Chess 22 January 2022
		date 2022-01-22	rnd 1	type Rapid	result 1	date 2022-01-22	rnd 4	type Rapid	result 1
		Opponent Mofokeng, N (Nyakalo)				Opponent Rossouw, J (Johrne)

#	Games	Start				End
1	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 7	type Blitz	result 0.5	date 2020-01-05	rnd 7	type Blitz	result 0.5
		Opponent Sopanam Prabha, A (Arjun)				Opponent Sopanam Prabha, A (Arjun)
2	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 4	type Blitz	result 1	date 2020-01-05	rnd 4	type Blitz	result 1
		Opponent Millard, C (Charlotte)				Opponent Millard, C (Charlotte)
3	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 2	type Blitz	result 0.5	date 2020-01-05	rnd 2	type Blitz	result 0.5
		Opponent Raubenheimer, D (Dian)				Opponent Raubenheimer, D (Dian)

#	Games	Start				End
1	5	Tournament Mangaung Metro Chess 16-17 August 2019				Tournament Mangaung Metro Chess October 2019
		date 2019-08-17	rnd 4	type Standard	result 1	date 2019-10-12	rnd 3	type Standard	result 1
		Opponent Van Rooyen, H (Hanro)				Opponent Eliades, AK (Alexandros)
2	3	Tournament Mangaung Metro Chess February 2020				Tournament Mangaung Metro Chess February 2020
		date 2020-02-21	rnd 2	type Standard	result 1	date 2020-02-22	rnd 4	type Standard	result 1
		Opponent Mutambala, B (Baraka)				Opponent Holsa, J (Jorma Holsa)
3	3	Tournament Mangaung Metro July Trials 2019				Tournament Mangaung Metro July Trials 2019
		date 2019-07-20	rnd 3	type Standard	result 1	date 2019-07-20	rnd 5	type Standard	result 1
		Opponent Steenkamp, F (Fransien)				Opponent Moshoeshoe, M (Maletapata)

#	Games	Start				End
1	5	Tournament Mangaung Metro Chess 16-17 August 2019				Tournament Mangaung Metro Chess October 2019
		date 2019-08-17	rnd 4	type Standard	result 1	date 2019-10-12	rnd 3	type Standard	result 1
		Opponent Van Rooyen, H (Hanro)				Opponent Eliades, AK (Alexandros)
2	3	Tournament Mangaung Metro Chess February 2020				Tournament Mangaung Metro Chess February 2020
		date 2020-02-21	rnd 2	type Standard	result 1	date 2020-02-22	rnd 4	type Standard	result 1
		Opponent Mutambala, B (Baraka)				Opponent Holsa, J (Jorma Holsa)
3	3	Tournament Mangaung Metro July Trials 2019				Tournament Mangaung Metro July Trials 2019
		date 2019-07-20	rnd 3	type Standard	result 1	date 2019-07-20	rnd 5	type Standard	result 1
		Opponent Steenkamp, F (Fransien)				Opponent Moshoeshoe, M (Maletapata)

#	Games	Start				End
1	2	Tournament Mangaung Metro Chess 22 January 2022				Tournament Mangaung Metro Chess 22 January 2022
		date 2022-01-22	rnd 1	type Rapid	result 1	date 2022-01-22	rnd 2	type Rapid	result 1
		Opponent Mofokeng, N (Nyakalo)				Opponent Du Toit, M (Mario)
2	1	Tournament Mangaung Metro Chess 22 January 2022				Tournament Mangaung Metro Chess 22 January 2022
		date 2022-01-22	rnd 4	type Rapid	result 1	date 2022-01-22	rnd 4	type Rapid	result 1
		Opponent Rossouw, J (Johrne)				Opponent Rossouw, J (Johrne)

#	Games	Start				End
1	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 4	type Blitz	result 1	date 2020-01-05	rnd 4	type Blitz	result 1
		Opponent Millard, C (Charlotte)				Opponent Millard, C (Charlotte)

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	Moshoeshoe ,M (Maletapata)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
1	Moshoeshoe ,M (Maletapata)	4	1053.6	1266.1	4	1058.2	1266.1	0	0	0	0	0	0
2	Coetzee ,J (Jeanre)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Coetzee ,J (Jeanre)	2	1176.2	751.2	2	1176	751.2	0	0	0	0	0	0
3	Botha ,E (Emma)	2	1	0	2	1	0	0	0	0	0	0	0
3	Botha ,E (Emma)	2	1179.1	1179.1	2	1180.4	1179.1	0	0	0	0	0	0
4	Arlow ,D (Daniel)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Arlow ,D (Daniel)	2	1161.1	736.1	2	1164.1	736.1	0	0	0	0	0	0
5	Manaba ,T (Thembani)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Manaba ,T (Thembani)	2	1610	1185	2	1616.7	1185	0	0	0	0	0	0
6	Sohe ,L (Lwandile)	2	1	0	2	1	0	0	0	0	0	0	0
6	Sohe ,L (Lwandile)	2	1150.9	1150.9	2	1163.8	1150.9	0	0	0	0	0	0
7	Steenkamp ,F (Fransien)	2	2	425	2	2	425	0	0	0	0	0	0
7	Steenkamp ,F (Fransien)	2	785.8	1210.8	2	784.7	1210.8	0	0	0	0	0	0
8	Mohlomi ,M (Mahlomola)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Mohlomi ,M (Mahlomola)	1	1232.9	807.9	1	1236.8	807.9	0	0	0	0	0	0
9	Lonake ,M (Mogomotsi)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Lonake ,M (Mogomotsi)	1	1278.3	853.3	1	1293.2	853.3	0	0	0	0	0	0
10	Makhele ,T (Thabo)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Makhele ,T (Thabo)	1	1224.9	799.9	1	1229.6	799.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Serfontein, C (Christiaan Jacobus)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms