Chess South Africa Ratings Database

PLAYER PAGE

Personal

Calitz, J (Joey)

Chess SA id

1100109823

FIDE id

Date of birth

2010-02-17 (U16)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

27.5

Junior GPX Points

1159.6

Item	Main	Standard	Rapid	Blitz
Rating	1336.7	1321.1	1278.9	1200
Raw rating	1336.7	1320.8	1278.9	1200
Weighted rating	1330	1321.1	1261.2	1200
Weighted performance	1215.3	1151.8	1105.7	0
Floor	880.5	862.9	795.3	700
K-factor	36	36	36	36
Min/Max rating change allowed	136.5	139.6	148.2	165.8
Highest rating	1408.7 2023-08-01	1362.9 2024-08-01	1295.3 2024-02-01	1200 2018-10-01
Highest raw rating	1380.5 2023-09-01	1362.9 2024-08-01	1295.3 2024-02-01	1200 2024-02-01
Highest weighted rating	1380.5 2024-08-01	1362.9 2024-09-01	1295.3 2024-07-01	1200 2018-10-01
Highest weighted performance	1408.7 2023-08-01	1357 2023-08-01	1286.7 2019-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	-0.3	0	0
New rating	1336.7	1320.8	1278.9	1200
Analysis
Rating	1336.7	1321.1	1278.9	1200
Raw rating	1336.7	1320.8	1278.9	1200
Weighted rating	1330	1321.1	1261.2
Weighted performance	1215.3	1151.8	1105.7
K-factor	36	36	36	36
Floor	880.5	862.9	795.3	700
Max/Min rating change allowed	136.5	139.6	148.2	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	1336.7	1320.8	1278.9	1200
New weighted rating	1329.7	1320.4	1262.1	1200
New weighted performance	1214.8	1151.3	1105.3	0
Temp new rating	1336.7	1320.8	1278.9	1200
Temp new rating +/-	0	-0.3	0	0
Final new rating +/-	0	-0.3	0	0
New rating	1336.7	1320.8	1278.9	1200
New K-factor	36	36	36	36
New floor	880.5	862.9	795.3	700

Item	Main	Standard	Rapid
	0	0	0
	29	18	11
	24	18	6
	34	23	11
	24	0	24
	0	0	0
History	186	90	96

Games since
	Main 53	Standard 36		Rapid 17		Blitz 0
Gender	Male
Age group	U16
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2812		900		134
Male	2259		674		96
U16	444		154		29
U16 Male	334		107		20
Standard
	RSA		Province		Region
Overall	2870		812		114
Male	2285		593		78
U16	459		151		28
U16 Male	344		104		19
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	29	14.5	50	0	1255.8	1255.8
Standard	18	9	50	0	1258.4	1258.4
Rapid	11	5.5	50	0	1251.6	1251.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	186	95.5	51.34	11.4	1257.9	1269.3
Standard	90	44.5	49.44	-4.7	1288	1283.2
Rapid	96	51	53.12	26.6	1229.7	1256.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1336.7	1320.8	1278.9	1200
2025-09-01	1336.7	1320.8	1278.9	1200
2025-08-01	1329.4	1320.8	1262	1200
2025-07-01	1334.1	1324.8	1262	1200
2025-06-01	1334.1	1324.8	1262	1200
2025-05-01	1334.1	1324.8	1262	1200
2025-04-01	1333	1323.6	1262	1200
2025-03-01	1333.9	1325.6	1260.2	1200
2025-02-01	1332.4	1322.2	1261.2	1200
2025-01-01	1279.5	1275.1	1228.7	1200
2024-12-01	1279.5	1275.1	1228.7	1200
2024-11-01	1279.5	1275.1	1228.7	1200
2024-10-01	1282	1285.2	1228.7	1200
2024-09-01	1314.3	1329.8	1228.7	1200
2024-08-01	1333.1	1362.9	1228.7	1200
2024-07-01	1377.6	1354.3	1295.3	1200
2024-06-01	1377.6	1354.3	1295.3	1200
2024-08-01	1377.6	1354.3	1295.3	1200
2024-04-01	1377.6	1354.3	1295.3	1200
2024-03-01	1377.6	1354.3	1295.3	1200
2024-02-01	1377.6	1354.3	1295.3	1200
2024-01-01	1377.6	1354.3	1295.3	1200
2023-12-01	1377.6	1354.3	1295.3	1200
2023-11-01	1377.6	1354.3	1295.3	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	Cape Winelands Top Schools 2025 (U15)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	2.5	Yes	Analysis
2	Cape Winelands Open 2025 (Intermediate)	2025-07-19	2025-07-20	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
3	Cape Town Open Chess Festival 2025 (C)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
4	Western Cape Closed 2025 (C)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
5	Cape of Good Hope Open 2025 (Open Rapid)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	7	7	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Winelands Top Schools 2025 (U15)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	2.5	Yes	Analysis
2	Cape Winelands Open 2025 (Intermediate)	2025-07-19	2025-07-20	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
3	Cape Town Open Chess Festival 2025 (C)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
4	Western Cape Closed 2025 (C)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
5	Cape of Good Hope Open 2025 (Open Rapid)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	7	7	3	Yes	Analysis
6	Western Cape Club Championship 2024 (Tier 2)	2024-10-25	2024-10-27	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
7	Western Cape Top Schools Championship 2024 (U15 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	5	1	Yes	Analysis
8	Western Cape Women�s Championship 2024 (Intermediate)	2024-08-10	2024-08-10	Standard	West Coast (WCU)	5	5	2	Yes	Analysis
9	Cape Winelands - Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Standard	Cape Winelands (WCW)	5	3	2	Yes	Analysis
10	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	1.5	Yes	Analysis
11	Western Cape Closed Championship 2023 (U14)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
12	CW Top Schools 2023 (U14)	2023-08-12	2023-08-12	Standard	West Coast (WCU)	5	5	4	Yes	Analysis
13	Western Cape PS Individuals 2023 (U13 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
14	Midas Paints Chess Cup Term 2 2023 (U14)	2023-04-15	2023-04-15	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
15	Cape Town Metro Schools Chess Closed Individuals 2023 (U13 Boys)	2023-02-03	2023-03-04	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
16	North District School Trials 2023 (U13 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
17	Kenridge Rapid 2022 (U14)	2022-11-05	2022-11-05	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
18	Curro Durbanville Chess Open Rapid 2022 (U14)	2022-07-02	2022-07-02	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
19	Stellenberg Chess Championship 2022 (U14)	2022-06-25	2022-06-25	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
20	District North 2022 (U13)	2022-03-05	2022-03-05	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
21	2020 Western Province Open (Development)	2020-03-07	2020-03-07	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
22	Metro North Individual Trials 2020 (U11)	2020-02-07	2020-02-08	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
23	Nelson Mandela Rapid 2020 (Primary School)	2020-02-01	2020-02-01	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
24	2020 Welgemoed Chess Challenge (U12)	2020-02-29	2020-02-29	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
25	2020 Cape Of Good Hope Open (Open)	2020-02-21	2020-02-23	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
26	The Manhattan Sweets & Super C National Chess Tournament 2019 (U9)	2019-09-06	2019-09-07	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
27	Curro Durbanville Chess Tournament 2019 (Junior)	2019-08-24	2019-08-24	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
28	2019 WP Youth Open (D)	2019-07-13	2019-07-13	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
29	DSK Chess Tournament 2019 (U9)	2019-06-08	2019-06-08	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
30	Stellenberg Youth Chess Championship 2019 (E)	2019-05-01	2019-05-01	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
31	2019 Western Province Open (Junior)	2019-05-25	2019-05-25	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
32	Rhenish Primary Chess Tournament 2019 (U10)	2019-05-11	2019-05-11	Rapid	Cape Winelands (WCW)	7	7	5	Yes	Analysis
33	Courtrai Young Master Festival 2019 (U9)	2019-03-02	2019-03-02	Rapid	Cape Winelands (WCW)	6	5	3	Yes	Analysis
34	Welgemoed Chess Challenge 2019 (U10)	2019-02-23	2019-02-23	Rapid	Cape Town (WCT)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Bosman, R (Ruan)				Opponent Conradie, A (Andre)
2	3	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Winelands Open 2025
		date 2025-03-23	rnd 6	type Standard	result 0.5	date 2025-07-19	rnd 2	type Standard	result 1
		Opponent Truter, A (Albert)				Opponent Kotze, J (Johann)
3	3	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-09	rnd 5	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Fani, Z (Zimi)				Opponent De La Rey, C (Callum)

#	Games	Start				End
1	4	Tournament CW Top Schools 2023				Tournament Cape Winelands - Top Schools 2024
		date 2023-08-12	rnd 4	type Standard	result 1	date 2024-07-27	rnd 4	type Standard	result 1
		Opponent Rooi, C (Chantelle)				Opponent Ferreira, H (Hercu)
2	3	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Winelands Open 2025
		date 2025-03-23	rnd 6	type Standard	result 0.5	date 2025-07-19	rnd 2	type Standard	result 1
		Opponent Truter, A (Albert)				Opponent Kotze, J (Johann)
3	3	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-09	rnd 5	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Fani, Z (Zimi)				Opponent De La Rey, C (Callum)

#	Games	Start				End
1	3	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Bosman, R (Ruan)				Opponent Conradie, A (Andre)
2	3	Tournament Kenridge Rapid 2022				Tournament Kenridge Rapid 2022
		date 2022-11-05	rnd 3	type Rapid	result 1	date 2022-11-05	rnd 5	type Rapid	result 1
		Opponent Singh, A (Ashil)				Opponent O`connell, G (Geordan)
3	3	Tournament Rhenish Primary Chess Tournament 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-05-11	rnd 1	type Rapid	result 1	date 2019-05-11	rnd 3	type Rapid	result 1
		Opponent Lindoor, A (Aqeelah)				Opponent Samuels, T (Tatum)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-09	rnd 5	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Fani, Z (Zimi)				Opponent De La Rey, C (Callum)
2	3	Tournament CW Top Schools 2023				Tournament Western Cape Closed Championship 2023
		date 2023-08-12	rnd 4	type Standard	result 1	date 2023-09-23	rnd 1	type Rapid	result 1
		Opponent Rooi, C (Chantelle)				Opponent Matthee, A (Alexa)
3	3	Tournament Western Cape PS Individuals 2023				Tournament CW Top Schools 2023
		date 2023-05-06	rnd 6	type Standard	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Hagis, M (Methyle)				Opponent Claassen, U (Uthan)

#	Games	Start				End
1	4	Tournament CW Top Schools 2023				Tournament Cape Winelands - Top Schools 2024
		date 2023-08-12	rnd 4	type Standard	result 1	date 2024-07-27	rnd 4	type Standard	result 1
		Opponent Rooi, C (Chantelle)				Opponent Ferreira, H (Hercu)
2	3	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-09	rnd 5	type Standard	result 1	date 2025-03-22	rnd 1	type Standard	result 1
		Opponent Fani, Z (Zimi)				Opponent De La Rey, C (Callum)
3	3	Tournament Western Cape PS Individuals 2023				Tournament CW Top Schools 2023
		date 2023-05-06	rnd 6	type Standard	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Hagis, M (Methyle)				Opponent Claassen, U (Uthan)

#	Games	Start				End
1	3	Tournament Rhenish Primary Chess Tournament 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-05-11	rnd 1	type Rapid	result 1	date 2019-05-11	rnd 3	type Rapid	result 1
		Opponent Lindoor, A (Aqeelah)				Opponent Samuels, T (Tatum)
2	3	Tournament Welgemoed Chess Challenge 2019				Tournament Courtrai Young Master Festival 2019
		date 2019-02-23	rnd 5	type Rapid	result 1	date 2019-03-02	rnd 2	type Rapid	result 1
		Opponent Hanekom, R (Ricus)				Opponent Louw, W (Wynand)
3	2	Tournament Cape of Good Hope Open 2025				Tournament Cape of Good Hope Open 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Willenburgh, M (Micah)				Opponent Chambers, C (Connor)

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	Strydom ,H (Henroux)	3	0	-425	1	0	-425	2	0	-425	0	0	0
1	Strydom ,H (Henroux)	3	1402.3	977.3	1	1428.7	977.3	2	1396.4	977.3	0	0	0
2	Kotze ,J (Johann)	2	1	0	2	1	0	0	0	0	0	0	0
2	Kotze ,J (Johann)	2	1284.3	1284.3	2	1283.2	1284.3	0	0	0	0	0	0
3	De Waal ,E (Erik)	2	1	0	2	1	0	0	0	0	0	0	0
3	De Waal ,E (Erik)	2	1426.7	1426.7	2	1383.6	1426.7	0	0	0	0	0	0
4	Matima ,L (Lee-Anne)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Matima ,L (Lee-Anne)	2	1487.1	1062.1	2	1481	1062.1	0	0	0	0	0	0
5	Weinreich ,C (Connor)	2	1	0	1	0	-425	1	1	425	0	0	0
5	Weinreich ,C (Connor)	2	1336.4	1336.4	1	1454.2	911.4	1	1200	1761.4	0	0	0
6	Meyer ,M (Matthew)	2	0	-425	1	0	-425	1	0	-425	0	0	0
6	Meyer ,M (Matthew)	2	1566.3	1141.3	1	1586.9	1141.3	1	1384.6	1141.3	0	0	0
7	Beech ,K (Kael)	2	0	-425	1	0	-425	1	0	-425	0	0	0
7	Beech ,K (Kael)	2	1195.4	770.4	1	1133.8	770.4	1	1248.4	770.4	0	0	0
8	Pfaff ,R (Ruben)	2	0	-425	1	0	-425	1	0	-425	0	0	0
8	Pfaff ,R (Ruben)	2	1227.1	802.1	1	1187.2	802.1	1	1260.1	802.1	0	0	0
9	Grove ,E (Emily)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Grove ,E (Emily)	2	1221.8	796.8	1	1173.3	796.8	1	1091.2	796.8	0	0	0
10	Wetzl ,A (Alexander)	2	2	425	0	0	0	2	2	425	0	0	0
10	Wetzl ,A (Alexander)	2	1203.1	1628.1	0	0	0	2	1206.6	1628.1	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Calitz, J (Joey)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms