Chess South Africa Ratings Database

PLAYER PAGE

Personal

Ariefdien, B (Bertram)

Chess SA id

171085148

FIDE id

Date of birth

1971-08-07 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	724.7	745.8	571.8	571.8
Raw rating	724.7	745.8	571.8	571.8
Weighted rating	724.7	745.8	571.8	571.8
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	326.4	316.7	405.8	405.8
Highest rating	1200 2018-01-01	1200 2018-01-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	725.9 2019-09-01	747 2019-09-01	571.8 2024-02-01	571.8 2024-02-01
Highest weighted rating	725.9 2024-11-01	747 2024-11-01	571.8 2024-11-01	571.8 2024-11-01
Highest weighted performance	1200 2018-01-01	1200 2018-01-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	724.7	745.8	571.8	571.8
Analysis
Rating	724.7	745.8	571.8	571.8
Raw rating	724.7	745.8	571.8	571.8
Weighted rating	724.7	745.8	571.8
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	326.4	316.7	405.8	405.8
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	724.7	745.8	571.8	571.8
New weighted rating	724.7	745.8	571.8	571.8
New weighted performance	0	0	0	0
Temp new rating	724.7	745.8	571.8	571.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	724.7	745.8	571.8	571.8
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	44	38	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	16	4.5	28.12	-185.9	1249.8	1063.9
Standard	16	4.5	28.12	-185.9	1249.8	1063.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	724.7	745.8	571.8	571.8
2025-09-01	724.7	745.8	571.8	571.8
2025-08-01	724.7	745.8	571.8	571.8
2025-07-01	724.7	745.8	571.8	571.8
2025-06-01	724.7	745.8	571.8	571.8
2025-05-01	724.7	745.8	571.8	571.8
2025-04-01	724.7	745.8	571.8	571.8
2025-03-01	724.7	745.8	571.8	571.8
2025-02-01	724.7	745.8	571.8	571.8
2025-01-01	724.7	745.8	571.8	571.8
2024-12-01	724.7	745.8	571.8	571.8
2024-11-01	724.7	745.8	571.8	571.8
2024-10-01	724.7	745.8	571.8	571.8
2024-09-01	724.7	745.8	571.8	571.8
2024-08-01	724.7	745.8	571.8	571.8
2024-07-01	724.7	745.8	571.8	571.8
2024-06-01	724.7	745.8	571.8	571.8
2024-08-01	724.7	745.8	571.8	571.8
2024-04-01	724.7	745.8	571.8	571.8
2024-03-01	724.7	745.8	571.8	571.8
2024-02-01	724.7	745.8	571.8	571.8
2024-01-01	724.7	745.8	571.8	571.8
2023-12-01	724.7	745.8	571.8	571.8
2023-11-01	724.7	745.8	571.8	571.8

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	2019 Western Province League (D)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	3	0	Yes	Analysis
2	2019 Western Province League (E)	2019-07-27	2019-08-10	Standard	Cape Town (WCT)	9	1	0.5	Yes	Analysis
3	2019 Elsies River Open (Open)	2019-06-22	2019-06-23	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
4	Crossroads Open Chess Championship 2019 (C)	2019-04-27	2019-04-28	Standard	Cape Town (WCT)	6	5	2	Yes	Analysis
5	2018 Western Province League (B)	2018-08-04	2018-09-15	Standard	Cape Town (WCT)	11	1	0	Yes	Analysis

#	Games	Start				End
1	1	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 3	type Standard	result 0.5	date 2019-07-27	rnd 3	type Standard	result 0.5
		Opponent Neutt, N (Nehum)				Opponent Neutt, N (Nehum)
2	1	Tournament 2019 Elsies River Open				Tournament 2019 Elsies River Open
		date 2019-06-23	rnd 5	type Standard	result 1	date 2019-06-23	rnd 5	type Standard	result 1
		Opponent Makhasi, A (Athule)				Opponent Makhasi, A (Athule)
3	1	Tournament 2019 Elsies River Open				Tournament 2019 Elsies River Open
		date 2019-06-22	rnd 3	type Standard	result 1	date 2019-06-22	rnd 3	type Standard	result 1
		Opponent Ebrahim, MB (Mumtaaz)				Opponent Ebrahim, MB (Mumtaaz)

#	Games	Start				End
1	1	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 3	type Standard	result 0.5	date 2019-07-27	rnd 3	type Standard	result 0.5
		Opponent Neutt, N (Nehum)				Opponent Neutt, N (Nehum)
2	1	Tournament 2019 Elsies River Open				Tournament 2019 Elsies River Open
		date 2019-06-23	rnd 5	type Standard	result 1	date 2019-06-23	rnd 5	type Standard	result 1
		Opponent Makhasi, A (Athule)				Opponent Makhasi, A (Athule)
3	1	Tournament 2019 Elsies River Open				Tournament 2019 Elsies River Open
		date 2019-06-22	rnd 3	type Standard	result 1	date 2019-06-22	rnd 3	type Standard	result 1
		Opponent Ebrahim, MB (Mumtaaz)				Opponent Ebrahim, MB (Mumtaaz)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament 2019 Elsies River Open				Tournament 2019 Elsies River Open
		date 2019-06-23	rnd 5	type Standard	result 1	date 2019-06-23	rnd 5	type Standard	result 1
		Opponent Makhasi, A (Athule)				Opponent Makhasi, A (Athule)
2	1	Tournament 2019 Elsies River Open				Tournament 2019 Elsies River Open
		date 2019-06-22	rnd 3	type Standard	result 1	date 2019-06-22	rnd 3	type Standard	result 1
		Opponent Ebrahim, MB (Mumtaaz)				Opponent Ebrahim, MB (Mumtaaz)
3	1	Tournament Crossroads Open Chess Championship 2019				Tournament Crossroads Open Chess Championship 2019
		date 2019-04-27	rnd 3	type Standard	result 1	date 2019-04-27	rnd 3	type Standard	result 1
		Opponent Booysen, C (Chadlin)				Opponent Booysen, C (Chadlin)

#	Games	Start				End
1	1	Tournament 2019 Elsies River Open				Tournament 2019 Elsies River Open
		date 2019-06-23	rnd 5	type Standard	result 1	date 2019-06-23	rnd 5	type Standard	result 1
		Opponent Makhasi, A (Athule)				Opponent Makhasi, A (Athule)
2	1	Tournament 2019 Elsies River Open				Tournament 2019 Elsies River Open
		date 2019-06-22	rnd 3	type Standard	result 1	date 2019-06-22	rnd 3	type Standard	result 1
		Opponent Ebrahim, MB (Mumtaaz)				Opponent Ebrahim, MB (Mumtaaz)
3	1	Tournament Crossroads Open Chess Championship 2019				Tournament Crossroads Open Chess Championship 2019
		date 2019-04-27	rnd 3	type Standard	result 1	date 2019-04-27	rnd 3	type Standard	result 1
		Opponent Booysen, C (Chadlin)				Opponent Booysen, C (Chadlin)

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	Van Beeck ,T (Trinity)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Van Beeck ,T (Trinity)	1	1248.6	823.6	1	1226.4	823.6	0	0	0	0	0	0
2	Forbes ,D (Dale)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Forbes ,D (Dale)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Theunissen ,J (Joshua)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Theunissen ,J (Joshua)	1	1288.8	863.8	1	1285.2	863.8	0	0	0	0	0	0
4	Gcuze ,K (Khanya)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Gcuze ,K (Khanya)	1	1184.5	759.5	1	1168.1	759.5	0	0	0	0	0	0
5	Van Staaden ,BH (Burton)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Staaden ,BH (Burton)	1	1259.8	834.8	1	1231.2	834.8	0	0	0	0	0	0
6	Herder ,J (Jovanne)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Herder ,J (Jovanne)	1	1176.2	751.2	1	1172.7	751.2	0	0	0	0	0	0
7	Makhasi ,A (Athule)	1	1	425	1	1	425	0	0	0	0	0	0
7	Makhasi ,A (Athule)	1	1172.5	1597.5	1	1176.7	1597.5	0	0	0	0	0	0
8	Witbooi ,L (Lee-Roy)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Witbooi ,L (Lee-Roy)	1	1362.6	937.6	1	1382.5	937.6	0	0	0	0	0	0
9	Jaffer ,U (Uzair)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Jaffer ,U (Uzair)	1	1171.1	746.1	1	1195	746.1	0	0	0	0	0	0
10	Opperman ,N (Natasha)	1	1	425	1	1	425	0	0	0	0	0	0
10	Opperman ,N (Natasha)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Ariefdien, B (Bertram)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms