Chess South Africa Ratings Database

PLAYER PAGE

Personal

Marais, A (Alexander)

Chess SA id

1150140699

FIDE id

Date of birth

2015-05-17 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-07

Personal details last changed

2025-01-03

Junior GPX Games

Junior GPX Points

1401.1

Item	Main	Standard	Rapid	Blitz
Rating	1543.4	1513.1	1500.7	1200
Raw rating	1543.4	1513.1	1500.7	1200
Weighted rating	1497.9	1452.5	1492.9	1200
Weighted performance	1464	1435.9	1340.1	0
Floor	1075.1	1048.4	1007.7	700
K-factor	32	32	32	36
Min/Max rating change allowed	101.7	106.1	108	165.8
Highest rating	1575.1 2025-04-01	1548.4 2025-04-01	1507.7 2024-09-01	1200 2018-10-01
Highest raw rating	1575.1 2025-04-01	1548.4 2025-04-01	1507.7 2024-09-01	1200 2024-02-01
Highest weighted rating	1482.4 2025-08-01	1432.8 2025-08-01	1486.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1575.1 2025-04-01	1548.4 2024-06-01	1496.3 2024-08-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1543.4	1513.1	1500.7	1200
Analysis
Rating	1543.4	1513.1	1500.7	1200
Raw rating	1543.4	1513.1	1500.7	1200
Weighted rating	1497.9	1452.5	1492.9
Weighted performance	1464	1435.9	1340.1
K-factor	32	32	32	36
Floor	1075.1	1048.4	1007.7	700
Max/Min rating change allowed	101.7	106.1	108	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	1543.4	1513.1	1500.7	1200
New weighted rating	1504.4	1461.1	1495.1	1200
New weighted performance	1463.5	1435.4	1339.6	0
Temp new rating	1543.4	1513.1	1500.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1543.4	1513.1	1500.7	1200
New K-factor	32	32	32	36
New floor	1075.1	1048.4	1007.7	700

Item	Main	Standard	Rapid
	0	0	0
	55	49	6
	61	39	22
	78	16	62
	11	0	11
	0	0	0
History	205	104	101

Games since
	Main 128	Standard 88		Rapid 40		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	937		275		157
Male	826		233		134
U12	85		26		13
U12 Male	68		20		11
Standard
	RSA		Province		Region
Overall	1077		294		159
Male	922		240		134
U12	108		30		15
U12 Male	78		20		11
Rapid
	RSA		Province		Region
Overall	220		103		55
Male	206		96		54
U12	23		14		9
U12 Male	22		13		9
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	55	37	67.27	146.8	1383.2	1530
Standard	49	33	67.35	147.4	1387.3	1534.8
Rapid	6	4	66.67	141.7	1349.6	1491.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	205	136	66.34	138.9	1285.4	1424.3
Standard	104	70	67.31	147.1	1332.2	1479.3
Rapid	101	66	65.35	130.4	1237.2	1367.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1543.4	1513.1	1500.7	1200
2025-09-01	1543.4	1513.1	1500.7	1200
2025-08-01	1543.4	1513.1	1500.7	1200
2025-07-01	1543.4	1513.1	1500.7	1200
2025-06-01	1527.3	1489.7	1500.7	1200
2025-05-01	1566.5	1546.6	1500.7	1200
2025-04-01	1575.1	1548.4	1500.7	1200
2025-03-01	1478.2	1434.8	1500.7	1200
2025-02-01	1482.1	1436	1497.5	1200
2025-01-01	1486.8	1437.5	1497.5	1200
2024-12-01	1415.4	1351.1	1497.5	1200
2024-11-01	1455.2	1388.5	1497.5	1200
2024-10-01	1455.2	1388.5	1507.7	1200
2024-09-01	1455.2	1388.5	1507.7	1200
2024-08-01	1434.5	1388.5	1480.2	1200
2024-07-01	1445.4	1392.5	1480.2	1200
2024-06-01	1440.9	1373.5	1480.2	1200
2024-08-01	1458.7	1387.9	1480.2	1200
2024-04-01	1458.7	1387.9	1480.2	1200
2024-03-01	1459	1342.1	1480.2	1200
2024-02-01	1330.4	1252.8	1360.4	1200
2024-01-01	1330.4	1252.8	1360.4	1200
2023-12-01	1330.4	1252.8	1360.4	1200
2023-11-01	1333.9	1252.8	1355.9	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	Helderberg Chess Club Open 2025 (U11)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	0	0	No	Analysis
3	Western Cape Schools Individual Championship 2025 (U11 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	South African Junior Closed Chess Championships 2025 (U10 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	5	Yes	Analysis
5	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
6	Western Cape Closed 2025 (U12)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
7	CT Metro Schools Individual Closed 2025 (U11 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
8	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
9	CT Metro District East Schools Chess Individuals Trials 2025 (U11 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
10	Helderberg Chess Club PS Development Tournament 2025 (U11 Boys)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2025 (U11)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	0	0	No	Analysis
3	Western Cape Schools Individual Championship 2025 (U11 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	South African Junior Closed Chess Championships 2025 (U10 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	5	Yes	Analysis
5	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
6	Western Cape Closed 2025 (U12)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
7	CT Metro Schools Individual Closed 2025 (U11 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
8	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
9	CT Metro District East Schools Chess Individuals Trials 2025 (U11 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
10	Helderberg Chess Club PS Development Tournament 2025 (U11 Boys)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
11	Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Candidates)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	6.5	Yes	Analysis
12	Helderberg Chess Club Open 2024 (B)	2024-11-09	2024-11-10	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
13	UCT Open Chess Championship 2024 (U10)	2024-10-12	2024-10-13	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
14	Stellenbosch Primary 2024 (U9)	2024-08-17	2024-08-17	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
15	CT Metro District East Top Schools Chess 2024 (U9 Mixed)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
16	Cape Town Chess Federation Closed Chess Championships 2024 (U10)	2024-06-15	2024-06-15	Standard	Cape Town (WCT)	5	4	3	Yes	Analysis
17	Western Cape PS Individuals Championship 2024 (U9 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
18	Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
19	Mary-Anne Bartels Closed Chess Tournament 2024 (U7+U9 Mixed)	2024-02-24	2024-02-24	Rapid	Cape Town (WCT)	5	5	5	Yes	Analysis
20	CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
21	Cape of Good Hope Open Chess Tournament 2024 (U10)	2024-02-17	2024-02-17	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
22	Kraaifontein Open 2023 (U10)	2023-12-09	2023-12-09	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
23	Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
24	Western Cape Closed Championship 2023 (U10)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
25	Stellenbosch Primary Chess Tournament 2023 (U10)	2023-08-19	2023-08-19	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
26	Cape Winelands Open 2023 (U10)	2023-07-23	2023-07-23	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
27	WP Closed 2023 (U10)	2023-06-17	2023-06-17	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
28	GPCA Rapid 2023 (U10)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	7	4	Yes	Analysis
29	Western Cape PS Individuals 2023 (U9 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
30	Steinitz Open 2023 (U10)	2023-05-27	2023-05-27	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
31	Rhenish Primary Tournament 2023 (U10)	2023-05-13	2023-05-13	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
32	Cape Town Open 2023 (U10)	2023-03-25	2023-03-25	Rapid	Cape Town (WCT)	6	0	0	No	Analysis
33	Cape Town Metro Schools Chess Closed Individuals 2023 (U9 Boys)	2023-03-04	2023-03-04	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
34	Mary-Anne Bartels Chess Tournament 2023 (U7+U9)	2023-02-21	2023-02-21	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
35	Laerskool Welgemoed Rapid 2023 (U10)	2023-02-11	2023-02-11	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
36	District East Schools Chess Individual Trials 2023 (U7+U9 Mixed)	2023-02-04	2023-02-04	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
37	Stellenbosch Primary 2022 (U7)	2022-08-13	2022-08-13	Rapid	Cape Winelands (WCW)	6	6	5	Yes	Analysis
38	Rhenish Primary Tournament 2022 (U10)	2022-05-14	2022-05-14	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis

#	Games	Start				End
1	11	Tournament CT Metro Schools Individual Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-02	rnd 5	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Fourie, S (Steph)				Opponent Zwartz, Z (Zeke)
2	10	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Helderberg Chess Club PS Development Tournament 2025
		date 2024-12-16	rnd 1	type Standard	result 0.5	date 2025-01-25	rnd 3	type Standard	result 0.5
		Opponent Moodley, K (Kai)				Opponent Van Der Merwe, S (Schalk Wolf)
3	9	Tournament Stellenbosch Primary 2024				Tournament UCT Open Chess Championship 2024
		date 2024-08-17	rnd 1	type Rapid	result 1	date 2024-10-13	rnd 4	type Rapid	result 1
		Opponent Carter, C (Cullen)				Opponent Kirthan, V (Venya)

#	Games	Start				End
1	11	Tournament CT Metro Schools Individual Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-02	rnd 5	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Fourie, S (Steph)				Opponent Zwartz, Z (Zeke)
2	10	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Helderberg Chess Club PS Development Tournament 2025
		date 2024-12-16	rnd 1	type Standard	result 0.5	date 2025-01-25	rnd 3	type Standard	result 0.5
		Opponent Moodley, K (Kai)				Opponent Van Der Merwe, S (Schalk Wolf)
3	6	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament CT Metro District East Top Schools Chess 2024
		date 2024-06-15	rnd 3	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Levin, J (Jamie)				Opponent Schepers, T (Thomas)

#	Games	Start				End
1	17	Tournament Cape of Good Hope Open Chess Tournament 2024				Tournament UCT Open Chess Championship 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-10-13	rnd 4	type Rapid	result 1
		Opponent He, L (Lily)				Opponent Kirthan, V (Venya)
2	4	Tournament Cape of Good Hope Open 2025				Tournament Cape of Good Hope Open 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Sattar, Y (Yusuf)				Opponent Davids, Z (Zachary)
3	4	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Kraaifontein Open 2023
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2023-12-09	rnd 3	type Rapid	result 1
		Opponent Pfukwa, R (Rujeko)				Opponent Beukes, B (Benjamin)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament Stellenbosch Primary 2024				Tournament UCT Open Chess Championship 2024
		date 2024-08-17	rnd 1	type Rapid	result 1	date 2024-10-13	rnd 4	type Rapid	result 1
		Opponent Carter, C (Cullen)				Opponent Kirthan, V (Venya)
2	8	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Helderberg Chess Club PS Development Tournament 2025
		date 2024-12-16	rnd 2	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Clifford, B (Benedict)				Opponent Zhang, M (Ming Xuan Jesse)
3	7	Tournament CT District East Schools Chess Individuals Trails 2024				Tournament Cape of Good Hope Open Chess Tournament 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-17	rnd 2	type Rapid	result 1
		Opponent Dudhia, H (Hamza)				Opponent Lin, J (Junming)

#	Games	Start				End
1	8	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Helderberg Chess Club PS Development Tournament 2025
		date 2024-12-16	rnd 2	type Standard	result 1	date 2025-01-25	rnd 2	type Standard	result 1
		Opponent Clifford, B (Benedict)				Opponent Zhang, M (Ming Xuan Jesse)
2	6	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament CT Metro District East Top Schools Chess 2024
		date 2024-06-15	rnd 3	type Standard	result 1	date 2024-07-27	rnd 3	type Standard	result 1
		Opponent Levin, J (Jamie)				Opponent Schepers, T (Thomas)
3	5	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 3	type Standard	result 1
		Opponent Beukes, B (Benjamin)				Opponent Zwartz, Z (Zeke)

#	Games	Start				End
1	15	Tournament Cape of Good Hope Open Chess Tournament 2024				Tournament UCT Open Chess Championship 2024
		date 2024-02-17	rnd 6	type Rapid	result 1	date 2024-10-13	rnd 4	type Rapid	result 1
		Opponent Blom, L (Liam)				Opponent Kirthan, V (Venya)
2	4	Tournament Cape of Good Hope Open 2025				Tournament Cape of Good Hope Open 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Sattar, Y (Yusuf)				Opponent Davids, Z (Zachary)
3	4	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 1	type Rapid	result 1	date 2023-11-04	rnd 4	type Rapid	result 1
		Opponent Africa, C (Caleb)				Opponent Koen, G (Gustav)

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	Van Der Merwe ,S (Schalk Wolf)	6	0.5	-354.2	2	0.5	-212.5	4	0	-425	0	0	0
1	Van Der Merwe ,S (Schalk Wolf)	6	1533.5	1179.3	2	1524.6	1321	4	1622.8	1108.5	0	0	0
2	Klopper ,B (Ben)	5	0	-425	3	0	-425	2	0	-425	0	0	0
2	Klopper ,B (Ben)	5	1475.4	1050.4	3	1471.2	1050.4	2	1479.4	1050.4	0	0	0
3	Lin ,J (Junming)	4	3	212.5	3	2	141.7	1	1	425	0	0	0
3	Lin ,J (Junming)	4	1333.2	1545.8	3	1359.7	1474.9	1	1252	1758.2	0	0	0
4	Kruger ,J (Josua Baruch)	4	2	0	2	1	0	2	1	0	0	0	0
4	Kruger ,J (Josua Baruch)	4	1410.4	1410.4	2	1387.6	1410.4	2	1400.8	1410.4	0	0	0
5	Stern ,M (Mason)	4	0	-425	2	0	-425	2	0	-425	0	0	0
5	Stern ,M (Mason)	4	1481.5	1056.5	2	1433	1056.5	2	1496.3	1056.5	0	0	0
6	Nel ,J (Joshua)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
6	Nel ,J (Joshua)	3	1431.8	1431.8	3	1395.8	1431.8	0	0	0	0	0	0
7	Zhang ,M (Ming Xuan Jesse)	3	3	425	2	2	425	1	1	425	0	0	0
7	Zhang ,M (Ming Xuan Jesse)	3	1335.3	1760.3	2	1311.2	1760.3	1	1231.5	1760.3	0	0	0
8	Small ,W (Wyatt)	3	2	141.7	2	1	0	1	1	425	0	0	0
8	Small ,W (Wyatt)	3	1182.3	1324	2	1151.2	1182.3	1	1200	1607.3	0	0	0
9	Whyatt ,B (Benji)	3	0	-425	2	0	-425	1	0	-425	0	0	0
9	Whyatt ,B (Benji)	3	1383.7	958.7	2	1294.6	958.7	1	1436	958.7	0	0	0
10	Foster ,B (Bjorn)	3	3	425	2	2	425	1	1	425	0	0	0
10	Foster ,B (Bjorn)	3	1219	1644	2	1263.1	1644	1	1122.4	1644	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Marais, A (Alexander)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms