Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Diemen, B (Benjamin)

Chess SA id

1150308955

FIDE id

Date of birth

2015-07-08 (U12)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1208.5	1210.1	1200	1200
Raw rating	1184.2	1180.5	1200	1200
Weighted rating	1208.5	1210.1	1200	1200
Weighted performance	0	0	0	0
Floor	716.6	720	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	169.6	170.5	165.8	165.8
Highest rating	1307.1 2024-08-01	1307.1 2024-08-01	1200 2024-10-01	1200 2024-10-01
Highest raw rating	1216.6 2024-10-01	1220 2024-10-01	1200 2024-10-01	1200 2024-10-01
Highest weighted rating	1216.6 2024-10-01	1220 2024-10-01	1200 2024-10-01	1200 2024-10-01
Highest weighted performance	1307.1 2024-08-01	1307.1 2024-08-01	1200 2024-10-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.8	-2.2	0	0
New rating	1206.7	1207.9	1200	1200
Analysis
Rating	1208.5	1210.1	1200	1200
Raw rating	1184.2	1180.5	1200	1200
Weighted rating	1208.5	1210.1	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	716.6	720	700	700
Max/Min rating change allowed	169.6	170.5	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	1184.2	1180.5	1200	1200
New weighted rating	1206.7	1207.9	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1206.7	1207.9	1200	1200
Temp new rating +/-	-1.8	-2.2	0	0
Final new rating +/-	-1.8	-2.2	0	0
New rating	1206.7	1207.9	1200	1200
New K-factor	36	36	36	36
New floor	716.6	720	700	700

Item	Main	Standard
	0	0
	5	5
	4	4
	0	0
	0	0
	0	0
History	9	9

Games since
	Main 9	Standard 9		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	5	1.5	30	-170	1209.5	1039.5
Standard	5	1.5	30	-170	1209.5	1039.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	9	4	44.44	-47.2	1205.3	1158.1
Standard	9	4	44.44	-47.2	1205.3	1158.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1184.2	1180.5	1200	1200
2025-09-01	1184.2	1180.5	1200	1200
2025-08-01	1216.6	1220	1200	1200
2025-07-01	1216.6	1220	1200	1200
2025-06-01	1216.6	1220	1200	1200
2025-05-01	1216.6	1220	1200	1200
2025-04-01	1216.6	1220	1200	1200
2025-03-01	1216.6	1220	1200	1200
2025-02-01	1216.6	1220	1200	1200
2025-01-01	1216.6	1220	1200	1200
2024-12-01	1216.6	1220	1200	1200
2024-11-01	1216.6	1220	1200	1200
2024-10-01	1216.6	1220	1200	1200
2024-09-01	1216.6	1220	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	2025 Tshwane South School District CLOSED League Championship (U11A)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Tshwane South School District CLOSED League Championship (U11A)	2025-08-15	2025-08-15	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
2	D4 Tshwane South District Schools Teams Chess Tournament 2024 (U9B)	2024-08-03	2024-08-03	Standard	Tshwane (GTP)	5	4	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 3	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Du Toit, D (Duwahl)				Opponent Fisher, L (Louis)
2	1	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 5	type Standard	result 0.5	date 2025-08-15	rnd 5	type Standard	result 0.5
		Opponent Mamabolo, M (Makhudu)				Opponent Mamabolo, M (Makhudu)
3	1	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 3	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Moloi, R (Retshedisitswe)				Opponent Moloi, R (Retshedisitswe)

#	Games	Start				End
1	2	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 3	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Du Toit, D (Duwahl)				Opponent Fisher, L (Louis)
2	1	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 5	type Standard	result 0.5	date 2025-08-15	rnd 5	type Standard	result 0.5
		Opponent Mamabolo, M (Makhudu)				Opponent Mamabolo, M (Makhudu)
3	1	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 3	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Moloi, R (Retshedisitswe)				Opponent Moloi, R (Retshedisitswe)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 3	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Du Toit, D (Duwahl)				Opponent Fisher, L (Louis)
2	1	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 3	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Moloi, R (Retshedisitswe)				Opponent Moloi, R (Retshedisitswe)

#	Games	Start				End
1	2	Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024				Tournament D4 Tshwane South District Schools Teams Chess Tournament 2024
		date 2024-08-03	rnd 3	type Standard	result 1	date 2024-08-03	rnd 5	type Standard	result 1
		Opponent Du Toit, D (Duwahl)				Opponent Fisher, L (Louis)
2	1	Tournament 2025 Tshwane South School District CLOSED League Championship				Tournament 2025 Tshwane South School District CLOSED League Championship
		date 2025-08-15	rnd 3	type Standard	result 1	date 2025-08-15	rnd 3	type Standard	result 1
		Opponent Moloi, R (Retshedisitswe)				Opponent Moloi, R (Retshedisitswe)

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	Du Toit ,D (Duwahl)	1	1	425	1	1	425	0	0	0	0	0	0
1	Du Toit ,D (Duwahl)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Mamabolo ,M (Makhudu)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Mamabolo ,M (Makhudu)	1	1190.7	1190.7	1	1187.3	1190.7	0	0	0	0	0	0
3	Fisher ,L (Louis)	1	1	425	1	1	425	0	0	0	0	0	0
3	Fisher ,L (Louis)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Smart ,S (Sean)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Smart ,S (Sean)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
5	Moloi ,R (Retshedisitswe)	1	1	425	1	1	425	0	0	0	0	0	0
5	Moloi ,R (Retshedisitswe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Pienaar ,I (Izak)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Pienaar ,I (Izak)	1	1186	761	1	1182.7	761	0	0	0	0	0	0
7	Chaane ,D (David)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Chaane ,D (David)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Strydom ,D (Duncan)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Strydom ,D (Duncan)	1	1270.7	845.7	1	1281.5	845.7	0	0	0	0	0	0
9	Bothma ,M (Martin)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Bothma ,M (Martin)	1	1200	775	1	1200	775	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

Van Diemen, B (Benjamin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms