Chess South Africa Ratings Database

PLAYER PAGE

Personal

Claassen, J (Jan)

Chess SA id

1120301269

FIDE id

Date of birth

2012-02-09 (U14)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1048.1

Item	Main	Standard	Rapid	Blitz
Rating	1202.8	1199.9	1209.7	1200
Raw rating	1202.8	1199.9	1209.7	1200
Weighted rating	1183.6	1199.9	1174.1	1200
Weighted performance	1053.7	0	0	0
Floor	702.8	700	709.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	165.2	165.8	163.5	165.8
Highest rating	1202.8 2025-09-01	1200 2024-03-01	1209.7 2025-09-01	1200 2024-03-01
Highest raw rating	1202.8 2025-09-01	1200 2024-03-01	1209.7 2025-09-01	1200 2024-03-01
Highest weighted rating	1200 2024-03-01	1200 2024-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted performance	1200 2024-12-01	1200 2024-03-01	1200 2024-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1202.8	1199.9	1209.7	1200
Analysis
Rating	1202.8	1199.9	1209.7	1200
Raw rating	1202.8	1199.9	1209.7	1200
Weighted rating	1183.6	1199.9	1174.1
Weighted performance	1053.7	0	0
K-factor	36	36	36	36
Floor	702.8	700	709.7	700
Max/Min rating change allowed	165.2	165.8	163.5	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	1202.8	1199.9	1209.7	1200
New weighted rating	1185	1199.9	1176.9	1200
New weighted performance	1053.3	0	0	0
Temp new rating	1202.8	1199.9	1209.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1202.8	1199.9	1209.7	1200
New K-factor	36	36	36	36
New floor	702.8	700	709.7	700

Item	Main	Standard	Rapid
	0	0	0
	15	5	10
	10	0	10
	0	0	0
	0	0	0
	0	0	0
History	25	5	20

Games since
	Main 25	Standard 5		Rapid 20		Blitz 0
Gender	Male
Age group	U14
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1577		265		87
Male	1226		206		53
U14	347		46		24
U14 Male	242		27		11
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	15	7.5	50	0	1200.5	1200.5
Standard	5	2	40	-85	1200	1115
Rapid	10	5.5	55	42.5	1200.7	1243.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	25	10.5	42	-68	1198.6	1130.6
Standard	5	2	40	-85	1200	1115
Rapid	20	8.5	42.5	-63.8	1198.3	1134.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1202.8	1199.9	1209.7	1200
2025-09-01	1202.8	1199.9	1209.7	1200
2025-08-01	1181.3	1199.9	1171.1	1200
2025-07-01	1181.3	1199.9	1171.1	1200
2025-06-01	1181.3	1199.8	1171.1	1200
2025-05-01	1181	1198.7	1171.1	1200
2025-04-01	1182.6	1200	1171.1	1200
2025-03-01	1182.6	1200	1171.1	1200
2025-02-01	1182.1	1200	1170.5	1200
2025-01-01	1175	1200	1158.4	1200
2024-12-01	1175	1200	1158.4	1200
2024-11-01	1175	1200	1158.4	1200
2024-10-01	1175	1200	1158.4	1200
2024-09-01	1175	1200	1158.4	1200
2024-08-01	1175	1200	1158.4	1200
2024-07-01	1175	1200	1158.4	1200
2024-06-01	1175	1200	1158.4	1200
2024-08-01	1175	1200	1158.4	1200
2024-04-01	1175	1200	1158.4	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	Benoni Primary School Cluster Teams 2025 (U13B)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
2	Benoni Primary School Cluster 12 April 2025 (U13 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	LS Northmead Trials 2025 (U13)	2025-01-25	2025-01-25	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Benoni Primary School Cluster Teams 2025 (U13B)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
2	Benoni Primary School Cluster 12 April 2025 (U13 Open)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	LS Northmead Trials 2025 (U13)	2025-01-25	2025-01-25	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
4	Benoni Primary School Cluster Individuals 2024 (U13 Boys)	2024-03-09	2024-03-09	Rapid	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
5	Laerskool Northmead Proewe 2024 (U13)	2024-02-10	2024-02-10	Rapid	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Theart, D (Declan)				Opponent Nadeson, T (Tyler)
2	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Gouws, J (Julian)				Opponent Smith, D (Dandre)
3	2	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 3	type Rapid	result 1	date 2024-03-09	rnd 4	type Rapid	result 0.5
		Opponent Grobler, R (Reinhardt)				Opponent Van Eeden, J (Johan)

#	Games	Start				End
1	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Gouws, J (Julian)				Opponent Smith, D (Dandre)

#	Games	Start				End
1	4	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Theart, D (Declan)				Opponent Nadeson, T (Tyler)
2	2	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 3	type Rapid	result 1	date 2024-03-09	rnd 4	type Rapid	result 0.5
		Opponent Grobler, R (Reinhardt)				Opponent Van Eeden, J (Johan)
3	1	Tournament LS Northmead Trials 2025				Tournament LS Northmead Trials 2025
		date 2025-01-25	rnd 5	type Rapid	result 1	date 2025-01-25	rnd 5	type Rapid	result 1
		Opponent O Bryan, A (Ava)				Opponent O Bryan, A (Ava)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Van Der Walt, J (Juandre)				Opponent Nadeson, T (Tyler)
2	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Gouws, J (Julian)				Opponent Smith, D (Dandre)
3	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Theart, D (Declan)				Opponent Theart, D (Declan)

#	Games	Start				End
1	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Gouws, J (Julian)				Opponent Smith, D (Dandre)

#	Games	Start				End
1	2	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 4	type Rapid	result 1	date 2025-08-02	rnd 5	type Rapid	result 1
		Opponent Van Der Walt, J (Juandre)				Opponent Nadeson, T (Tyler)
2	1	Tournament Benoni Primary School Cluster Teams 2025				Tournament Benoni Primary School Cluster Teams 2025
		date 2025-08-02	rnd 2	type Rapid	result 1	date 2025-08-02	rnd 2	type Rapid	result 1
		Opponent Theart, D (Declan)				Opponent Theart, D (Declan)
3	1	Tournament LS Northmead Trials 2025				Tournament LS Northmead Trials 2025
		date 2025-01-25	rnd 5	type Rapid	result 1	date 2025-01-25	rnd 5	type Rapid	result 1
		Opponent O Bryan, A (Ava)				Opponent O Bryan, A (Ava)

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	Kleinhans ,S (Siela)	2	1	0	0	0	0	2	1	0	0	0	0
1	Kleinhans ,S (Siela)	2	1196.2	1196.2	0	0	0	2	1193.3	1196.2	0	0	0
2	Gouws ,J (Julian)	1	1	425	1	1	425	0	0	0	0	0	0
2	Gouws ,J (Julian)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Ndala ,G (Gift)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Ndala ,G (Gift)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Smith ,D (Dandre)	1	1	425	1	1	425	0	0	0	0	0	0
4	Smith ,D (Dandre)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Van Der Walt ,J (Juandre)	1	1	425	0	0	0	1	1	425	0	0	0
5	Van Der Walt ,J (Juandre)	1	1166.8	1591.8	0	0	0	1	1153.5	1591.8	0	0	0
6	Nadeson ,T (Tyler)	1	1	425	0	0	0	1	1	425	0	0	0
6	Nadeson ,T (Tyler)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
7	O Bryan ,A (Ava)	1	1	425	0	0	0	1	1	425	0	0	0
7	O Bryan ,A (Ava)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Lowings ,M (Michael)	1	1	425	0	0	0	1	1	425	0	0	0
8	Lowings ,M (Michael)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Theart ,D (Declan)	1	1	425	0	0	0	1	1	425	0	0	0
9	Theart ,D (Declan)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Botha ,Z (Zanroux)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Botha ,Z (Zanroux)	1	1234.8	809.8	0	0	0	1	1258.5	809.8	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Claassen, J (Jan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms