Chess South Africa Ratings Database

PLAYER PAGE

Personal

Rule, C (Calem)

Chess SA id

1100108988

FIDE id

Date of birth

2010-10-17 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1414.3	1394	1387.2	1200
Raw rating	1401.9	1383.9	1387.2	1200
Weighted rating	1414.3	1394	1385.1	1200
Weighted performance	1251.4	1238.4	1102.2	0
Floor	942.4	925.3	887.2	700
K-factor	32	32	36	36
Min/Max rating change allowed	124.4	127.6	127	165.8
Highest rating	1442.4 2025-04-01	1425.3 2025-04-01	1387.2 2024-10-01	1200 2018-10-01
Highest raw rating	1442.4 2025-04-01	1425.3 2025-04-01	1387.2 2024-10-01	1200 2024-02-01
Highest weighted rating	1442.4 2025-02-01	1425.3 2025-02-01	1383.3 2025-08-01	1200 2018-10-01
Highest weighted performance	1441.9 2025-07-01	1399.5 2024-06-01	1359.6 2023-11-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-4.4	-4.3	0	0
New rating	1409.9	1389.6	1387.2	1200
Analysis
Rating	1414.3	1394	1387.2	1200
Raw rating	1401.9	1383.9	1387.2	1200
Weighted rating	1414.3	1394	1385.1
Weighted performance	1251.4	1238.4	1102.2
K-factor	32	32	36	36
Floor	942.4	925.3	887.2	700
Max/Min rating change allowed	124.4	127.6	127	165.8
Games	5	5	0	0
Score	2	2	0	0
Expected score	3.25	3.42	0	0
Score-Expected	-1.25	-1.42	0	0
Temp raw +/-	-40.1	-45.4	0	0
Final raw +/-	-40.1	-45.4	0	0
New raw rating	1361.8	1338.4	1387.2	1200
New weighted rating	1409.9	1389.6	1385.4	1200
New weighted performance	1198.8	1188	1093.1	0
Temp new rating	1409.9	1389.6	1387.2	1200
Temp new rating +/-	-4.4	-4.3	0	0
Final new rating +/-	-4.4	-4.3	0	0
New rating	1409.9	1389.6	1387.2	1200
New K-factor	32	32	36	36
New floor	942.4	925.3	887.2	700

Item	Main	Standard	Rapid
	0	0	0
	46	46	0
	65	48	17
	40	23	17
	28	18	10
	0	0	0
History	245	196	49

Games since
	Main 111	Standard 94		Rapid 17		Blitz 0
Gender	Male
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2033		626		296
Male	1668		501		243
U16	299		93		36
U16 Male	231		71		27
Standard
	RSA		Province		Region
Overall	2148		593		286
Male	1744		461		229
U16	329		98		38
U16 Male	254		73		28
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	46	22	47.83	-18.5	1404	1385.5
Standard	46	22	47.83	-18.5	1404	1385.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	245	140.5	57.35	62.4	1289.3	1351.7
Standard	196	106.5	54.34	36.9	1295.3	1332.2
Rapid	49	34	69.39	164.8	1265	1429.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1401.9	1383.9	1387.2	1200
2025-11-30	1401.9	1383.9	1387.2	1200
2025-11-01	1401.9	1383.9	1387.2	1200
2025-09-30	1397.4	1375.2	1387.2	1200
2025-09-01	1397.4	1375.2	1387.2	1200
2025-08-01	1427	1412.6	1387.2	1200
2025-07-01	1427	1412.6	1387.2	1200
2025-06-01	1434.8	1419.5	1387.2	1200
2025-05-01	1434.8	1419.5	1387.2	1200
2025-04-01	1442.4	1425.3	1387.2	1200
2025-03-01	1409.5	1378	1387.2	1200
2025-02-01	1410.5	1379.2	1387.2	1200
2025-01-01	1380.3	1360.8	1387.2	1200
2024-12-01	1420.9	1396.6	1387.2	1200
2024-11-01	1424.1	1398.8	1387.2	1200
2024-10-01	1420.5	1393	1387.2	1200
2024-09-01	1423.9	1407.4	1363.4	1200
2024-11-01	1423.9	1407.4	1363.4	1200
2024-07-01	1423.9	1407.4	1363.4	1200
2024-06-01	1414.7	1394.1	1363.4	1200
2024-05-01	1424.7	1394.1	1386.4	1200
2024-04-01	1424.7	1394.1	1386.4	1200
2024-03-01	1421.8	1378.6	1386.4	1200
2024-02-01	1404.3	1345.8	1386.4	1200

Comming soon.

Tournaments

History

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (B)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (B)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (B)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
2	Cape Town Chess Federation Club League 2025 (D)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	2	1	Yes	Analysis
3	CT Metro District East Top Schools Chess 2025 (U15)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
4	Helderberg Chess Club Open 2025 (B)	2025-06-07	2025-06-08	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
5	Cape Town Chess Junior League 2025 (U16)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	5	4	3	Yes	Analysis
6	Western Cape Schools Individual Championship 2025 (U15 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
7	Western Cape Closed 2025 (B)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
8	CT Metro Schools Individual Closed 2025 (U15 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
9	Cape of Good Hope Open 2025 (Advanced)	2025-02-22	2025-02-23	Standard	Cape Town (WCT)	6	6	1	Yes	Analysis
10	CT Metro District East Schools Chess Individuals Trials 2025 (U15 Boys)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
11	Mzansi Interprovincial Youth Chess Championships 2024 (U16 Open Candidates)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	6	2.5	Yes	Analysis
12	Helderberg Chess Club Open 2024 (B)	2024-11-09	2024-11-10	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
13	Western Cape Club Championship 2024 (Tier 2)	2024-10-25	2024-10-27	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
14	CT League 2024 (D-Playoffs)	2024-09-07	2024-09-08	Standard	Cape Town (WCT)	5	2	0	Yes	Analysis
15	CT League 2024 (D)	2024-08-03	2024-08-03	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
16	Kingsway Chess Open 2024 (U14)	2024-09-14	2024-09-14	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
17	Cape Town Chess Federation Closed Chess Championships 2024 (U16)	2024-06-15	2024-06-16	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
18	Cape Town Junior League Finals 2024 (U15 Open A)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	5	5	2.5	Yes	Analysis
19	Cape Town Junior League - Qualifier 2 2024 (U15)	2024-04-20	2024-04-20	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
20	Western Cape HS Individuals Championship 2024 (U15 Boys)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	3.5	Yes	Analysis
21	Cape Town Metro Schools Chess Closed Individuals 2024 (U15 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
22	CT District East Schools Chess Individuals Trails 2024 (U15 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
23	Grant East Primary School Invitational Chess Tournament 2023 (U13 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
24	Curro Durbanville Chess Open Rapid 2023 (U14)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
25	Cape Winelands Open 2023 (U14)	2023-07-23	2023-07-23	Standard	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
26	Western Cape PS Individuals 2023 (U13 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
27	Cape Town Metro Schools Chess Closed Individuals 2023 (U13 Boys)	2023-02-03	2023-03-04	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
28	Mary-Anne Bartels Chess Tournament 2023 (U13)	2023-02-21	2023-02-21	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
29	District East Schools Chess Individual Trials 2023 (U13 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
30	Metro Rapid 2022 (U13 Boys)	2022-10-22	2022-10-22	Rapid	Cape Town (WCT)	5	4	2	Yes	Analysis
31	WP Closed 2022 (U14)	2022-06-16	2022-06-16	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
32	Western Cape Schools 2022 (U13 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
33	Metro WP Schools Chess Trials 2022 (U13 Boys)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
34	2022 East Dist Individuals (U13)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
35	2020 Western Province Open (Prestige)	2020-03-07	2020-03-08	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
36	2020 Metro Trials (U11 Boys)	2020-03-13	2020-03-14	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
37	Northern Chess Cadet Series 2020 (B)	2020-02-15	2020-02-15	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
38	2020 Welgemoed Chess Challenge (U12)	2020-02-29	2020-02-29	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
39	2020 East District Individuals (U11)	2020-01-31	2020-02-01	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
40	2020 Cape Of Good Hope Open (Open)	2020-02-21	2020-02-23	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
41	2019 South African Junior Team Championships (U10D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	3.5	Yes	Analysis
42	2019 Western Cape Closed Chess Championships (D)	2019-09-21	2019-09-22	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
43	2019 WP Youth Open (D)	2019-07-13	2019-07-13	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
44	Western Cape Schools Individuals 2019 (U9 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	3.5	Yes	Analysis
45	Metro School Chess Closed Individual Trials 2019 (U7+U9 Boys)	2019-03-01	2019-03-02	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
46	2019 Metro-East District Schools Trials (U9)	2019-02-01	2019-02-02	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament District East Schools Chess Individual Trials 2023				Tournament Mary-Anne Bartels Chess Tournament 2023
		date 2023-02-04	rnd 4	type Standard	result 0.5	date 2023-02-21	rnd 4	type Rapid	result 1
		Opponent Petersen, M (Mathew)				Opponent Van Coller, L (Liam)
2	6	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament CT League 2024
		date 2024-06-16	rnd 5	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Craig, M (Max)				Opponent Rossouw, J (Jan)
3	6	Tournament Western Cape HS Individuals Championship 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-03-21	rnd 4	type Standard	result 1	date 2024-04-20	rnd 3	type Rapid	result 1
		Opponent Brooks, L (Lehane)				Opponent Hagan, B (Bianca)

#	Games	Start				End
1	8	Tournament District East Schools Chess Individual Trials 2023				Tournament Western Cape PS Individuals 2023
		date 2023-02-04	rnd 4	type Standard	result 0.5	date 2023-05-05	rnd 1	type Standard	result 1
		Opponent Petersen, M (Mathew)				Opponent Lotter, M (Michael)
2	6	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament CT League 2024
		date 2024-06-16	rnd 5	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Craig, M (Max)				Opponent Rossouw, J (Jan)
3	4	Tournament Western Cape Club Championship 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-10-27	rnd 5	type Standard	result 1	date 2024-11-09	rnd 3	type Standard	result 1
		Opponent Matima, L (Lee-Anne)				Opponent Du Bois, L (Luke)

#	Games	Start				End
1	5	Tournament Metro Rapid 2022				Tournament Mary-Anne Bartels Chess Tournament 2023
		date 2022-10-22	rnd 5	type Rapid	result 1	date 2023-02-21	rnd 4	type Rapid	result 1
		Opponent Hollander, M (Matthew)				Opponent Van Coller, L (Liam)
2	4	Tournament Kingsway Chess Open 2024				Tournament Kingsway Chess Open 2024
		date 2024-09-14	rnd 3	type Rapid	result 1	date 2024-09-14	rnd 6	type Rapid	result 1
		Opponent Swart, J (Jayden)				Opponent Van Der Linde, L (Luandi)
3	4	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-04-20	rnd 3	type Rapid	result 1
		Opponent Amoraal, B (Benyamin)				Opponent Hagan, B (Bianca)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament District East Schools Chess Individual Trials 2023				Tournament Mary-Anne Bartels Chess Tournament 2023
		date 2023-02-04	rnd 5	type Standard	result 1	date 2023-02-21	rnd 4	type Rapid	result 1
		Opponent Schutte, D (Daniel)				Opponent Van Coller, L (Liam)
2	5	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament CT District East Schools Chess Individuals Trails 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-02-03	rnd 4	type Standard	result 1
		Opponent Amoraal, B (Benyamin)				Opponent Carstens, J (Joshua)
3	5	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-04	rnd 3	type Standard	result 1	date 2023-05-05	rnd 1	type Standard	result 1
		Opponent Prince, C (Cohen)				Opponent Lotter, M (Michael)

#	Games	Start				End
1	7	Tournament District East Schools Chess Individual Trials 2023				Tournament Western Cape PS Individuals 2023
		date 2023-02-04	rnd 5	type Standard	result 1	date 2023-05-05	rnd 1	type Standard	result 1
		Opponent Schutte, D (Daniel)				Opponent Lotter, M (Michael)
2	4	Tournament Western Cape Club Championship 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-10-27	rnd 5	type Standard	result 1	date 2024-11-09	rnd 3	type Standard	result 1
		Opponent Matima, L (Lee-Anne)				Opponent Du Bois, L (Luke)
3	4	Tournament CT League 2024				Tournament CT League 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Naidoo, Y (Yashenda)				Opponent Rossouw, J (Jan)

#	Games	Start				End
1	5	Tournament Metro Rapid 2022				Tournament Mary-Anne Bartels Chess Tournament 2023
		date 2022-10-22	rnd 5	type Rapid	result 1	date 2023-02-21	rnd 4	type Rapid	result 1
		Opponent Hollander, M (Matthew)				Opponent Van Coller, L (Liam)
2	4	Tournament Kingsway Chess Open 2024				Tournament Kingsway Chess Open 2024
		date 2024-09-14	rnd 3	type Rapid	result 1	date 2024-09-14	rnd 6	type Rapid	result 1
		Opponent Swart, J (Jayden)				Opponent Van Der Linde, L (Luandi)
3	4	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament Curro Durbanville Chess Open Rapid 2023
		date 2023-07-15	rnd 1	type Rapid	result 1	date 2023-07-15	rnd 4	type Rapid	result 1
		Opponent Samuels, J (Jean)				Opponent Shaw, O (Oliver)

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)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
1	Strydom ,H (Henroux)	4	1427.3	1214.8	4	1382.7	1214.8	0	0	0	0	0	0
2	Meyer ,M (Matthew)	4	0.5	-318.8	2	0.5	-212.5	2	0	-425	0	0	0
2	Meyer ,M (Matthew)	4	1481.9	1163.2	2	1341.5	1269.4	2	1543.8	1056.9	0	0	0
3	Solomon ,I (Izaiah)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Solomon ,I (Izaiah)	3	1452	1027	3	1410.5	1027	0	0	0	0	0	0
4	Matima ,L (Lee-Anne)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
4	Matima ,L (Lee-Anne)	3	1479.7	1763	3	1475.6	1763	0	0	0	0	0	0
5	Goliath ,Q (Quinn)	3	0.5	-283.3	2	0.5	-212.5	1	0	-425	0	0	0
5	Goliath ,Q (Quinn)	3	1251.4	968	2	1242.9	1038.9	1	944.2	826.4	0	0	0
6	Hibbins ,G (Graeme)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Hibbins ,G (Graeme)	2	1517.4	1092.4	2	1521.8	1092.4	0	0	0	0	0	0
7	Kruger ,A (Aiden)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Kruger ,A (Aiden)	2	1550.8	1125.8	2	1509.2	1125.8	0	0	0	0	0	0
8	Smith ,S (Shiloh)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Smith ,S (Shiloh)	2	1341.1	916.1	2	1349.2	916.1	0	0	0	0	0	0
9	Tsabola ,B (Bright)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Tsabola ,B (Bright)	2	1638.9	1213.9	2	1624.1	1213.9	0	0	0	0	0	0
10	Muller ,H (Helgard)	2	2	425	2	2	425	0	0	0	0	0	0
10	Muller ,H (Helgard)	2	1331.7	1756.7	2	1300.9	1756.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Rule, C (Calem)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms