Chess South Africa Ratings Database

PLAYER PAGE

Personal

Calitz, R (Ruben)

Chess SA id

1140152599

FIDE id

Date of birth

2014-09-12 (U12)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

16.7

Junior GPX Points

1340.8

Item	Main	Standard	Rapid	Blitz
Rating	1330.8	1347.9	1196.1	1200
Raw rating	1330.8	1347.9	1196.1	1200
Weighted rating	1270.7	1277	1195.5	1200
Weighted performance	1204.7	1183.8	0	0
Floor	830.8	847.9	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	137.6	134.3	166.7	165.8
Highest rating	1410.7 2023-03-01	1428 2023-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1330.8 2025-09-01	1347.9 2025-09-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1256.2 2025-09-01	1260.2 2025-09-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1410.7 2023-03-01	1428 2023-03-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1330.8	1347.9	1196.1	1200
Analysis
Rating	1330.8	1347.9	1196.1	1200
Raw rating	1330.8	1347.9	1196.1	1200
Weighted rating	1270.7	1277	1195.5
Weighted performance	1204.7	1183.8	0
K-factor	36	36	36	36
Floor	830.8	847.9	700	700
Max/Min rating change allowed	137.6	134.3	166.7	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	1330.8	1347.9	1196.1	1200
New weighted rating	1277.3	1284.7	1195.5	1200
New weighted performance	1196.9	1175.9	0	0
Temp new rating	1330.8	1347.9	1196.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1330.8	1347.9	1196.1	1200
New K-factor	36	36	36	36
New floor	830.8	847.9	700	700

Item	Main	Standard	Rapid
	0	0	0
	15	15	0
	12	7	5
	11	11	0
	0	0	0
	0	0	0
History	38	33	5

Games since
	Main 27	Standard 22		Rapid 5		Blitz 0
Gender	Male
Age group	U12
Region	Eden (WEG)
Province	Western Cape (WC)
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	15	9	60	85	1347.8	1432.8
Standard	15	9	60	85	1347.8	1432.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	38	20	52.63	22.4	1302.7	1325.1
Standard	33	18	54.55	38.6	1293.3	1331.9
Rapid	5	2	40	-85	1365.2	1280.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1330.8	1347.9	1196.1	1200
2025-09-30	1330.8	1347.9	1196.1	1200
2025-09-01	1330.8	1347.9	1196.1	1200
2025-08-01	1301.9	1308.7	1196.1	1200
2025-07-01	1301.9	1308.7	1196.1	1200
2025-06-01	1301.9	1308.7	1196.1	1200
2025-05-01	1301.9	1308.7	1196.1	1200
2025-04-01	1249.2	1252.6	1196.1	1200
2025-03-01	1230.6	1229.2	1196.1	1200
2025-02-01	1230.6	1229.2	1195.5	1200
2025-01-01	1230.6	1229.2	1184.9	1200
2024-12-01	1230.6	1229.2	1184.9	1200
2024-11-01	1230.6	1229.2	1184.9	1200
2024-10-01	1224.5	1229.2	1200	1200
2024-09-01	1224.5	1229.2	1200	1200
2024-08-01	1221.5	1225.6	1200	1200
2024-07-01	1221.5	1225.6	1200	1200
2024-09-01	1221.5	1225.6	1200	1200
2024-05-01	1221.5	1225.6	1200	1200
2024-04-01	1221.5	1225.6	1200	1200
2024-03-01	1199.1	1197.5	1200	1200
2024-02-01	1199.1	1197.5	1200	1200
2024-01-01	1199.1	1197.5	1200	1200
2023-12-01	1199.1	1197.5	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	Eden Top Schools 2025 (U13)	2025-08-16	2025-08-16	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
2	Eden Chess Trials 2 2025 (U12)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	5	3.5	Yes	Analysis
3	Eden Schools Chess Trials 1 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eden Top Schools 2025 (U13)	2025-08-16	2025-08-16	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
2	Eden Chess Trials 2 2025 (U12)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	5	3.5	Yes	Analysis
3	Eden Schools Chess Trials 1 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	5	3	Yes	Analysis
4	George Suid Senior Skaaktoernooi 2024	2024-10-26	2024-10-26	Rapid	Eden (WEG)	5	5	2	Yes	Analysis
5	Eden Top Schools 2024 (U13 Open)	2024-08-17	2024-08-17	Standard	Eden (WEG)	5	2	1	Yes	Analysis
6	Eden School Chess Trials 1 2024 (U11 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	3	Yes	Analysis
7	Western Cape PS Individuals 2023 (U9 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	1.5	Yes	Analysis
8	Eden Trials 2+3 2023 (U10)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	0	0	No	Analysis
9	Eden Trails 1 2023 (U9 Boys)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	6	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-15	rnd 4	type Standard	result 1
		Opponent Meyer, R (Ryu)				Opponent Plaatjies, A (Ayren)
2	3	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Van Graan, L (Logan)				Opponent Grace, S (Shane-Lee)
3	3	Tournament Eden School Chess Trials 1 2024				Tournament Eden Top Schools 2024
		date 2024-03-09	rnd 4	type Standard	result 1	date 2024-08-17	rnd 1	type Standard	result 1
		Opponent Meyer, X (Xaydin)				Opponent Berry, L (Luthando)

#	Games	Start				End
1	6	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-15	rnd 4	type Standard	result 1
		Opponent Meyer, R (Ryu)				Opponent Plaatjies, A (Ayren)
2	3	Tournament Eden Top Schools 2025				Tournament Eden Top Schools 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Van Graan, L (Logan)				Opponent Grace, S (Shane-Lee)
3	3	Tournament Eden School Chess Trials 1 2024				Tournament Eden Top Schools 2024
		date 2024-03-09	rnd 4	type Standard	result 1	date 2024-08-17	rnd 1	type Standard	result 1
		Opponent Meyer, X (Xaydin)				Opponent Berry, L (Luthando)

#	Games	Start				End
1	2	Tournament George Suid Senior Skaaktoernooi 2024				Tournament George Suid Senior Skaaktoernooi 2024
		date 2024-10-26	rnd 2	type Rapid	result 1	date 2024-10-26	rnd 3	type Rapid	result 1
		Opponent Meyer, I (Isabella)				Opponent Brewis, F (Fox)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Meyer, R (Ryu)				Opponent Abrahams, M (Marshal)
2	3	Tournament Eden School Chess Trials 1 2024				Tournament Eden Top Schools 2024
		date 2024-03-09	rnd 4	type Standard	result 1	date 2024-08-17	rnd 1	type Standard	result 1
		Opponent Meyer, X (Xaydin)				Opponent Berry, L (Luthando)
3	2	Tournament George Suid Senior Skaaktoernooi 2024				Tournament George Suid Senior Skaaktoernooi 2024
		date 2024-10-26	rnd 2	type Rapid	result 1	date 2024-10-26	rnd 3	type Rapid	result 1
		Opponent Meyer, I (Isabella)				Opponent Brewis, F (Fox)

#	Games	Start				End
1	4	Tournament Eden Schools Chess Trials 1 2025				Tournament Eden Chess Trials 2 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-15	rnd 2	type Standard	result 1
		Opponent Meyer, R (Ryu)				Opponent Abrahams, M (Marshal)
2	3	Tournament Eden School Chess Trials 1 2024				Tournament Eden Top Schools 2024
		date 2024-03-09	rnd 4	type Standard	result 1	date 2024-08-17	rnd 1	type Standard	result 1
		Opponent Meyer, X (Xaydin)				Opponent Berry, L (Luthando)
3	2	Tournament Eden Trails 1 2023				Tournament Eden Trails 1 2023
		date 2023-03-11	rnd 3	type Standard	result 1	date 2023-03-11	rnd 4	type Standard	result 1
		Opponent Verster, J (Juan Marais)				Opponent Pietersen, L (Linsey)

#	Games	Start				End
1	2	Tournament George Suid Senior Skaaktoernooi 2024				Tournament George Suid Senior Skaaktoernooi 2024
		date 2024-10-26	rnd 2	type Rapid	result 1	date 2024-10-26	rnd 3	type Rapid	result 1
		Opponent Meyer, I (Isabella)				Opponent Brewis, F (Fox)

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	Holdsworth ,J (Jordan)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Holdsworth ,J (Jordan)	1	1256.5	831.5	1	1198.8	831.5	0	0	0	0	0	0
2	Amsterdam ,A (Anicke)	1	1	425	1	1	425	0	0	0	0	0	0
2	Amsterdam ,A (Anicke)	1	1085.5	1510.5	1	1081.1	1510.5	0	0	0	0	0	0
3	Van Graan ,L (Logan)	1	1	425	1	1	425	0	0	0	0	0	0
3	Van Graan ,L (Logan)	1	1061.1	1486.1	1	1200	1486.1	0	0	0	0	0	0
4	Fritz ,U (Ulysse)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Fritz ,U (Ulysse)	1	1441.9	1016.9	1	1444.2	1016.9	0	0	0	0	0	0
5	Abrahams ,L (Liam)	1	1	425	1	1	425	0	0	0	0	0	0
5	Abrahams ,L (Liam)	1	1213.6	1638.6	1	1218.4	1638.6	0	0	0	0	0	0
6	Lebatie ,T (Thorne)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Lebatie ,T (Thorne)	1	1204.8	779.8	1	1207.2	779.8	0	0	0	0	0	0
7	Da Camara ,S (Samuel)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Da Camara ,S (Samuel)	1	1226.2	801.2	1	1200	801.2	0	0	0	0	0	0
8	Cameron ,N (Noah)	1	1	425	1	1	425	0	0	0	0	0	0
8	Cameron ,N (Noah)	1	1243.5	1668.5	1	1251.2	1668.5	0	0	0	0	0	0
9	Moses ,D (Dominique)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Moses ,D (Dominique)	1	1381.3	956.3	1	1387.2	956.3	0	0	0	0	0	0
10	Muza ,B (Benjamin)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Muza ,B (Benjamin)	1	1410.9	1410.9	1	1407.4	1410.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Calitz, R (Ruben)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms