Chess South Africa Ratings Database

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Personal

Calitz, Z (Zandre)

Chess SA id

1090146165

FIDE id

Date of birth

2009-06-11 (U18)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

45.7

Junior GPX Points

1349.4

Item	Main	Standard	Rapid	Blitz
Rating	1461	1408.8	1357.6	1181.4
Raw rating	1445.1	1408.8	1357.6	1181.4
Weighted rating	1376.4	1340.6	1291.1	1180.8
Weighted performance	1461	1386.5	1257.3	0
Floor	945.1	908.8	857.6	700
K-factor	32	32	36	36
Min/Max rating change allowed	116.9	123.1	132.5	170.3
Highest rating	1639.7 2022-08-01	1638.8 2022-08-01	1357.6 2025-09-01	1200 2018-10-01
Highest raw rating	1445.1 2025-09-30	1408.8 2025-09-30	1357.6 2025-09-01	1200 2020-01-01
Highest weighted rating	1376.4 2025-09-30	1394.2 2024-10-01	1283.8 2025-09-01	1200 2018-10-01
Highest weighted performance	1639.7 2022-08-01	1638.8 2022-08-01	1286.3 2024-03-01	1200 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	0	0	0
New rating	1460.5	1408.8	1357.6	1181.4
Analysis
Rating	1461	1408.8	1357.6	1181.4
Raw rating	1445.1	1408.8	1357.6	1181.4
Weighted rating	1376.4	1340.6	1291.1
Weighted performance	1461	1386.5	1257.3
K-factor	32	32	36	36
Floor	945.1	908.8	857.6	700
Max/Min rating change allowed	116.9	123.1	132.5	170.3
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	1445.1	1408.8	1357.6	1181.4
New weighted rating	1384	1348.3	1297.8	1180.9
New weighted performance	1460.5	1386	1256.8	0
Temp new rating	1460.5	1408.8	1357.6	1181.4
Temp new rating +/-	-0.5	0	0	0
Final new rating +/-	-0.5	0	0	0
New rating	1460.5	1408.8	1357.6	1181.4
New K-factor	32	32	36	36
New floor	945.1	908.8	857.6	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	37	32	5	0
	54	36	18	0
	50	26	17	7
	10	10	0	0
	0	0	0	0
History	151	104	40	7

Games since
	Main 114	Standard 79		Rapid 35		Blitz 0
Gender	Male
Age group	U18
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1557		476		70
Male	1316		389		55
U18	250		78		17
U18 Male	221		67		14
Standard
	RSA		Province		Region
Overall	1964		536		76
Male	1612		417		57
U18	325		84		15
U18 Male	280		68		12
Rapid
	RSA		Province		Region
Overall	702		364		50
Male	589		304		40
U18	91		50		5
U18 Male	83		45		4
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	37	25	67.57	149.3	1329.5	1478.8
Standard	32	20	62.5	106.2	1344.7	1450.9
Rapid	5	5	100	425	1232.3	1657.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	151	82.5	54.64	39.4	1327.2	1366.6
Standard	104	59	56.73	57.2	1312	1369.2
Rapid	40	21.5	53.75	31.9	1337.7	1369.6
Blitz	7	2	28.57	-182.1	1492.3	1310.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	1445.1	1408.8	1357.6	1181.4
2025-09-01	1423.1	1365.3	1357.6	1181.4
2025-08-01	1390.4	1365.3	1283	1181.4
2025-07-01	1399.7	1377.4	1283	1181.4
2025-06-01	1399.7	1377.4	1283	1181.4
2025-05-01	1399.7	1377.4	1283	1181.4
2025-04-01	1408.9	1394.2	1283	1181.4
2025-03-01	1363.9	1340.9	1283	1181.4
2025-02-01	1336.8	1300.6	1283	1181.4
2025-01-01	1336.8	1300.6	1283	1180
2024-12-01	1336.8	1300.6	1283	1180
2024-11-01	1327.5	1289.1	1283	1180
2024-10-01	1395.8	1365.8	1283	1180
2024-09-01	1358.5	1310.6	1283	1180
2024-08-01	1358.5	1310.6	1283	1180
2024-07-01	1361.3	1293	1280.1	1180
2024-06-01	1361.3	1293	1280.1	1180
2024-08-01	1361.3	1293	1280.1	1180
2024-04-01	1361.3	1293	1280.1	1180
2024-03-01	1266	1213.8	1252.4	1180
2024-02-01	1252.8	1233.2	1198.8	1180
2024-01-01	1252.8	1233.2	1198.8	1180
2023-12-01	1252.8	1233.2	1198.8	1180
2023-11-01	1253.4	1233.2	1198.4	1180

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	Western Cape Schools - Top Schools 2025 (U19)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U17+U19)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
3	Cape Winelands Open 2025 (Advanced)	2025-07-19	2025-07-20	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
5	Cape Winelands Schools Prestige 2025 (U17 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
6	Grey College Team Championship 2025 (A)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	4	2	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U17 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U19)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U17+U19)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
3	Cape Winelands Open 2025 (Advanced)	2025-07-19	2025-07-20	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
5	Cape Winelands Schools Prestige 2025 (U17 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
6	Grey College Team Championship 2025 (A)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	4	2	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U17 Boys)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
8	Paarl Boys' High Chess Festival 2024	2024-10-04	2024-10-05	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
9	UCT Open Chess Championship 2024 (Intermediate)	2024-10-12	2024-10-13	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
10	Western Cape Top Schools Championship 2024 (U15 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	4	Yes	Analysis
11	Cape Winelands - Top Schools 2024 (U15 Mixed)	2024-07-27	2024-07-27	Standard	Cape Winelands (WCW)	5	4	2.5	Yes	Analysis
12	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
13	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	2.5	Yes	Analysis
14	Cape Town Open Rapid Chess Championship 2024 (Open)	2024-03-17	2024-03-17	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
15	Cape Winelands Schools - Prestige 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
16	Cape Winelands Schools - HS Trials 1 2024 (U15 Boys)	2024-02-17	2024-02-17	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
17	Grey College Team Championship 2024 (B)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	4	1.5	Yes	Analysis
18	Kraaifontein Open 2023 (Open)	2023-12-10	2023-12-10	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
19	Chess Elevation Series 2023 (Level 1A)	2023-11-03	2023-11-04	Standard	Cape Town (WCT)	5	5	1.5	Yes	Analysis
20	Paarl Boys High Chess Festival 2023 (2nd Division)	2023-10-13	2023-10-14	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
21	Bonnievale Open Rapid 2023 (Intermediate)	2023-10-21	2023-10-21	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
22	Western Cape Closed Championship 2023 (Blitz)	2023-09-23	2023-09-25	Blitz	Cape Town (WCT)	7	7	2	Yes	Analysis
23	Cape Winelands Open 2023 (Intermediate)	2023-07-22	2023-07-23	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
24	Cape Town Open 2023 (Rapid)	2023-03-26	2023-03-26	Rapid	Cape Town (WCT)	6	5	1	Yes	Analysis
25	Cape Winelands Schools Prestige 2023 (U15 Boys)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	4	2.5	Yes	Analysis
26	Cape Winelands Schools Chess - Trials 1 2023 (U15 Boys)	2023-02-25	2023-02-25	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
27	Western Cape Top Schools 2022 (U13 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
28	Cape Winelands Schools Top Schools 2022 (U13 Mix)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	5	5	5	Yes	Analysis

#	Games	Start				End
1	6	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-07-20	rnd 6	type Standard	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Keyster, W (Wayleetho)				Opponent Ntunta, I (Iminathi)
2	6	Tournament Cape Winelands Schools Top Schools 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-09-16	rnd 1	type Standard	result 1
		Opponent Crotz, E (Euodia)				Opponent Gouws, G (Garlan)
3	5	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 2	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Sassman, E (Evan)				Opponent Van Wyk, R (Rudzani)

#	Games	Start				End
1	6	Tournament Cape Winelands Schools Top Schools 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-09-16	rnd 1	type Standard	result 1
		Opponent Crotz, E (Euodia)				Opponent Gouws, G (Garlan)
2	5	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 2	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Sassman, E (Evan)				Opponent Van Wyk, R (Rudzani)
3	5	Tournament Grey College Team Championship 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Mulder, A (Adriaan)				Opponent Louw, W (Walt)

#	Games	Start				End
1	6	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Cape Winelands Top Schools 2025
		date 2024-07-13	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Marais, E (Enzo)				Opponent Ntunta, I (Iminathi)
2	4	Tournament Cape Winelands Schools - HS Trials 1 2024				Tournament Cape Town Open Rapid Chess Championship 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-03-17	rnd 1	type Rapid	result 1
		Opponent Lawrence, H (Henley)				Opponent Mchontsi, A (Ayabonga)
3	4	Tournament Bonnievale Open Rapid 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-10-21	rnd 1	type Rapid	result 0.5	date 2023-10-21	rnd 4	type Rapid	result 1
		Opponent Choli, T (Thimwa Angel)				Opponent Oosthuizen, E (Eben)

#	Games	Start				End
1	1	Tournament Western Cape Closed Championship 2023				Tournament Western Cape Closed Championship 2023
		date 2023-09-24	rnd 4	type Blitz	result 1	date 2023-09-24	rnd 4	type Blitz	result 1
		Opponent Maruma, K (Katlego)				Opponent Maruma, K (Katlego)
2	1	Tournament Western Cape Closed Championship 2023				Tournament Western Cape Closed Championship 2023
		date 2023-09-23	rnd 1	type Blitz	result 1	date 2023-09-23	rnd 1	type Blitz	result 1
		Opponent Chizeya, D (Daniellle)				Opponent Chizeya, D (Daniellle)

#	Games	Start				End
1	6	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-07-20	rnd 6	type Standard	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Keyster, W (Wayleetho)				Opponent Ntunta, I (Iminathi)
2	6	Tournament Cape Winelands Schools Top Schools 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-09-16	rnd 1	type Standard	result 1
		Opponent Crotz, E (Euodia)				Opponent Gouws, G (Garlan)
3	5	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 2	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Sassman, E (Evan)				Opponent Van Wyk, R (Rudzani)

#	Games	Start				End
1	6	Tournament Cape Winelands Schools Top Schools 2022				Tournament Western Cape Top Schools 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-09-16	rnd 1	type Standard	result 1
		Opponent Crotz, E (Euodia)				Opponent Gouws, G (Garlan)
2	5	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 2	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Sassman, E (Evan)				Opponent Van Wyk, R (Rudzani)
3	5	Tournament Grey College Team Championship 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Mulder, A (Adriaan)				Opponent Louw, W (Walt)

#	Games	Start				End
1	6	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Cape Winelands Top Schools 2025
		date 2024-07-13	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 5	type Rapid	result 1
		Opponent Marais, E (Enzo)				Opponent Ntunta, I (Iminathi)
2	3	Tournament Bonnievale Open Rapid 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-10-21	rnd 2	type Rapid	result 1	date 2023-10-21	rnd 4	type Rapid	result 1
		Opponent Van Niekerk, J (Johan)				Opponent Oosthuizen, E (Eben)
3	2	Tournament Cape Winelands Schools - HS Trials 1 2024				Tournament Cape Winelands Schools - HS Trials 1 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Lawrence, H (Henley)				Opponent De Klerk, H (Hanro)

#	Games	Start				End
1	1	Tournament Western Cape Closed Championship 2023				Tournament Western Cape Closed Championship 2023
		date 2023-09-24	rnd 4	type Blitz	result 1	date 2023-09-24	rnd 4	type Blitz	result 1
		Opponent Maruma, K (Katlego)				Opponent Maruma, K (Katlego)
2	1	Tournament Western Cape Closed Championship 2023				Tournament Western Cape Closed Championship 2023
		date 2023-09-23	rnd 1	type Blitz	result 1	date 2023-09-23	rnd 1	type Blitz	result 1
		Opponent Chizeya, D (Daniellle)				Opponent Chizeya, D (Daniellle)

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	Karsten ,K (Keagan)	2	1	0	2	1	0	0	0	0	0	0	0
1	Karsten ,K (Keagan)	2	1538.1	1538.1	2	1510.6	1538.1	0	0	0	0	0	0
2	Cooper ,H (Hayden)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
2	Cooper ,H (Hayden)	2	1284.2	1071.8	2	1278.8	1071.8	0	0	0	0	0	0
3	Milhomem ,D (Daniel)	2	2	425	2	2	425	0	0	0	0	0	0
3	Milhomem ,D (Daniel)	2	1322.5	1747.5	2	1263.9	1747.5	0	0	0	0	0	0
4	Smith ,K (Kayden)	2	2	425	2	2	425	0	0	0	0	0	0
4	Smith ,K (Kayden)	2	1230.1	1655.1	2	1229.8	1655.1	0	0	0	0	0	0
5	Liu ,F (Furui)	2	0	-425	1	0	-425	1	0	-425	0	0	0
5	Liu ,F (Furui)	2	1421.9	996.9	1	1353.7	996.9	1	1387.5	996.9	0	0	0
6	De Klerk ,H (Hanro)	2	2	425	1	1	425	1	1	425	0	0	0
6	De Klerk ,H (Hanro)	2	1316.8	1741.8	1	1250.8	1741.8	1	1291.4	1741.8	0	0	0
7	Lawrence ,H (Henley)	2	2	425	1	1	425	1	1	425	0	0	0
7	Lawrence ,H (Henley)	2	1202	1627	1	1200	1627	1	1200	1627	0	0	0
8	Bester ,C (Christoff)	2	1	0	1	0	-425	1	1	425	0	0	0
8	Bester ,C (Christoff)	2	1287.9	1287.9	1	1168.4	862.9	1	1281.2	1712.9	0	0	0
9	Jenkins ,T (Tauriq)	2	0	-425	1	0	-425	0	0	0	1	0	-425
9	Jenkins ,T (Tauriq)	2	1497.9	1072.9	1	1481.2	1072.9	0	0	0	1	1575.7	1072.9
10	Schroeder ,L (Liam)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Schroeder ,L (Liam)	1	1497.5	1497.5	1	1495.8	1497.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Calitz, Z (Zandre)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms