Chess South Africa Ratings Database

PLAYER PAGE

Personal

Claassen, A (Arno)

Chess SA id

1110312150

FIDE id

Date of birth

2011-05-28 (U16)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1255.1	1265.6	1200	1200
Raw rating	1255.1	1265.6	1200	1200
Weighted rating	1224.9	1229	1200	1200
Weighted performance	0	0	0	0
Floor	755.1	765.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	153.3	151	165.8	165.8
Highest rating	1257.7 2024-10-01	1265.6 2025-11-01	1200 2024-10-01	1200 2024-10-01
Highest raw rating	1255.1 2025-11-01	1265.6 2025-11-01	1200 2024-10-01	1200 2024-10-01
Highest weighted rating	1218 2025-11-01	1220.8 2025-11-01	1200 2024-10-01	1200 2024-10-01
Highest weighted performance	1257.7 2024-10-01	1255.7 2024-10-01	1200 2024-10-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1255.1	1265.6	1200	1200
Analysis
Rating	1255.1	1265.6	1200	1200
Raw rating	1255.1	1265.6	1200	1200
Weighted rating	1224.9	1229	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	755.1	765.6	700	700
Max/Min rating change allowed	153.3	151	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	1255.1	1265.6	1200	1200
New weighted rating	1228	1232.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1255.1	1265.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1255.1	1265.6	1200	1200
New K-factor	36	36	36	36
New floor	755.1	765.6	700	700

Item	Main	Standard
	0	0
	16	16
	5	5
	0	0
	0	0
	0	0
History	21	21

Games since
	Main 21	Standard 21		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	16	9	56.25	53.1	1263.8	1316.9
Standard	16	9	56.25	53.1	1263.8	1316.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	21	11	52.38	20.2	1282.3	1302.5
Standard	21	11	52.38	20.2	1282.3	1302.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1255.1	1265.6	1200	1200
2025-11-30	1255.1	1265.6	1200	1200
2025-11-01	1255.1	1265.6	1200	1200
2025-09-30	1240.8	1247.9	1200	1200
2025-09-01	1240.8	1247.9	1200	1200
2025-08-01	1240.8	1247.9	1200	1200
2025-07-01	1209.6	1210.4	1200	1200
2025-06-01	1209.6	1210.4	1200	1200
2025-05-01	1209.6	1210.4	1200	1200
2025-04-01	1209.6	1210.4	1200	1200
2025-03-01	1209.6	1210.4	1200	1200
2025-02-01	1209.6	1210.4	1200	1200
2025-01-01	1209.6	1210.4	1200	1200
2024-12-01	1209.6	1210.4	1200	1200
2024-11-01	1209.6	1210.4	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	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

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	2025 Gauteng Top Schools Teams (U15)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	Paarl Boys' High School Chess Festival 2025 (C)	2025-10-17	2025-10-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
3	2025 D2 Schools League Finals (U15)	2025-07-26	2025-07-26	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
4	Gauteng Top Schools 2024 (U13 Open)	2024-10-04	2024-10-04	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2025 D2 Schools League Finals				Tournament 2025 Gauteng Top Schools Teams
		date 2025-07-26	rnd 3	type Standard	result 1	date 2025-08-30	rnd 1	type Standard	result 1
		Opponent Moruledi, N (Naledi)				Opponent Malepa, K (Kekaetswe)
2	3	Tournament 2025 Gauteng Top Schools Teams				Tournament Paarl Boys' High School Chess Festival 2025
		date 2025-08-30	rnd 4	type Standard	result 1	date 2025-10-17	rnd 1	type Standard	result 1
		Opponent Jikinqina, S (Simphiwe Zusakhe)				Opponent Schepers, D (Deegan)
3	2	Tournament Paarl Boys' High School Chess Festival 2025				Tournament Paarl Boys' High School Chess Festival 2025
		date 2025-10-17	rnd 3	type Standard	result 1	date 2025-10-17	rnd 4	type Standard	result 1
		Opponent Joseph, C (Chlo� Elizabeth)				Opponent Hammond-Aryee, Z (Zaffery)

#	Games	Start				End
1	3	Tournament 2025 D2 Schools League Finals				Tournament 2025 D2 Schools League Finals
		date 2025-07-26	rnd 3	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Moruledi, N (Naledi)				Opponent Viljoen, J (Johandre)
2	2	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-04	rnd 3	type Standard	result 1	date 2024-10-04	rnd 4	type Standard	result 1
		Opponent Myburgh, V (Vaughn)				Opponent Jonker, R (Reagan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2025 D2 Schools League Finals				Tournament 2025 D2 Schools League Finals
		date 2025-07-26	rnd 3	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Moruledi, N (Naledi)				Opponent Viljoen, J (Johandre)
2	2	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-04	rnd 3	type Standard	result 1	date 2024-10-04	rnd 4	type Standard	result 1
		Opponent Myburgh, V (Vaughn)				Opponent Jonker, R (Reagan)

#	Games	Start				End
1	3	Tournament 2025 D2 Schools League Finals				Tournament 2025 D2 Schools League Finals
		date 2025-07-26	rnd 3	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Moruledi, N (Naledi)				Opponent Viljoen, J (Johandre)
2	2	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-04	rnd 3	type Standard	result 1	date 2024-10-04	rnd 4	type Standard	result 1
		Opponent Myburgh, V (Vaughn)				Opponent Jonker, R (Reagan)

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	Ndlovu ,S (Siphesihle)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Ndlovu ,S (Siphesihle)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Limba ,N (Neo)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Limba ,N (Neo)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Joseph ,C (Chlo� Elizabeth)	1	1	425	1	1	425	0	0	0	0	0	0
3	Joseph ,C (Chlo� Elizabeth)	1	1268.6	1693.6	1	1314.8	1693.6	0	0	0	0	0	0
4	Pengele ,M (Mboyo Belesi)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Pengele ,M (Mboyo Belesi)	1	1276.5	851.5	1	1268.4	851.5	0	0	0	0	0	0
5	Jonker ,T (Tertius)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Jonker ,T (Tertius)	1	1399.7	974.7	1	1381.6	974.7	0	0	0	0	0	0
6	Jonker ,R (Reagan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Jonker ,R (Reagan)	1	1332.5	1757.5	1	1320.8	1757.5	0	0	0	0	0	0
7	Semwogerere ,J (Joseph)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Semwogerere ,J (Joseph)	1	1383.1	958.1	1	1412.2	958.1	0	0	0	0	0	0
8	Myburgh ,V (Vaughn)	1	1	425	1	1	425	0	0	0	0	0	0
8	Myburgh ,V (Vaughn)	1	1370.9	1795.9	1	1367.6	1795.9	0	0	0	0	0	0
9	Tisana ,K (Kwazokuhle)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Tisana ,K (Kwazokuhle)	1	1153.4	728.4	1	1200	728.4	0	0	0	0	0	0
10	Mothupi ,R (Reotshepile)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mothupi ,R (Reotshepile)	1	1173.8	748.8	1	1173.1	748.8	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

Claassen, A (Arno)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms