Chess South Africa Ratings Database

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Personal

Dubbeld, B (Benjamin)

Chess SA id

1090157940

FIDE id

Date of birth

2009-05-16 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-12

Personal details last changed

1900-01-01

Junior GPX Games

89.2

Junior GPX Points

1330.2

Item	Main	Standard	Rapid	Blitz
Rating	1527.5	1554.2	1365.3	1200
Raw rating	1527.5	1554.2	1336.4	1200
Weighted rating	1395.2	1392.5	1365.3	1200
Weighted performance	1433.2	1538.4	1231.5	0
Floor	1027.5	1054.2	927.8	700
K-factor	32	32	32	36
Min/Max rating change allowed	104	100.1	136.5	165.8
Highest rating	1527.5 2025-11-01	1554.2 2025-11-01	1427.8 2025-05-05	1200 2018-10-01
Highest raw rating	1527.5 2025-11-01	1554.2 2025-11-01	1427.8 2025-05-05	1200 2024-02-01
Highest weighted rating	1395.2 2025-11-01	1392.5 2025-11-01	1427.8 2025-07-01	1200 2018-10-01
Highest weighted performance	1488 2025-07-01	1538.4 2025-11-01	1417.5 2024-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-0.6	0
New rating	1527.5	1554.2	1364.7	1200
Analysis
Rating	1527.5	1554.2	1365.3	1200
Raw rating	1527.5	1554.2	1336.4	1200
Weighted rating	1395.2	1392.5	1365.3
Weighted performance	1433.2	1538.4	1231.5
K-factor	32	32	32	36
Floor	1027.5	1054.2	927.8	700
Max/Min rating change allowed	104	100.1	136.5	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	1527.5	1554.2	1336.4	1200
New weighted rating	1408.3	1408.9	1364.7	1200
New weighted performance	1431.7	1536.7	1230.2	0
Temp new rating	1527.5	1554.2	1364.7	1200
Temp new rating +/-	0	0	-0.6	0
Final new rating +/-	0	0	-0.6	0
New rating	1527.5	1554.2	1364.7	1200
New K-factor	32	32	32	36
New floor	1027.5	1054.2	927.8	700

Item	Main	Standard	Rapid
	0	0	0
	95	62	33
	77	42	35
	24	5	19
	0	0	0
	0	0	0
History	196	109	87

Games since
	Main 183	Standard 109		Rapid 74		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1075		334		190
Male	936		288		163
U18	168		50		24
U18 Male	149		44		20
Standard
	RSA		Province		Region
Overall	843		229		146
Male	742		198		129
U18	124		33		20
U18 Male	112		29		17
Rapid
	RSA		Province		Region
Overall	701		363		167
Male	584		301		152
U18	85		47		18
U18 Male	75		41		18
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	95	49.5	52.11	17.9	1431.8	1449.7
Standard	62	37	59.68	82.3	1393.3	1475.6
Rapid	33	12.5	37.88	-103	1504.2	1401.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	196	105.5	53.83	32.5	1363.2	1395.7
Standard	109	61.5	56.42	54.6	1359	1413.6
Rapid	87	44	50.57	4.9	1368.5	1373.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1527.5	1554.2	1336.4	1200
2025-09-30	1439.3	1491.2	1356.9	1200
2025-09-01	1439.3	1491.2	1356.9	1200
2025-08-01	1439.3	1491.2	1356.9	1200
2025-07-01	1488	1491.2	1427.8	1200
2025-06-01	1424	1407.6	1427.8	1200
2025-05-01	1424	1407.6	1427.8	1200
2025-04-01	1404.9	1393.1	1418.5	1200
2025-03-01	1384	1332.1	1418.5	1200
2025-02-01	1405	1334.8	1418.5	1200
2025-01-01	1318.9	1283.7	1358	1200
2024-12-01	1276.8	1267.1	1321.6	1200
2024-11-01	1276.8	1267.1	1321.6	1200
2024-10-01	1289.7	1298.4	1312.2	1200
2024-09-01	1317.3	1302.9	1312.2	1200
2024-08-01	1316	1302.9	1306.4	1200
2024-07-01	1339.5	1302.9	1341	1200
2024-09-01	1337.9	1293.5	1341	1200
2024-05-01	1325.2	1293.5	1291	1200
2024-04-01	1325.2	1293.5	1291	1200
2024-03-01	1325.1	1283.8	1291	1200
2024-02-01	1301.6	1262.6	1273.4	1200
2024-01-01	1301.6	1262.6	1273.4	1200
2023-12-01	1301.6	1262.6	1273.4	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 Town Chess Federation Club League 2025 (C)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	7	4.5	Yes	Analysis
2	Cape Town Chess Federation Club League 2025 (D)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	0	0	No	Analysis
3	UCT Open Chess Championship 2025 (Advanced)	2025-10-10	2025-10-12	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
4	Royal Rapid Challenge 2025 (A)	2025-10-04	2025-10-04	Rapid	Cape Town (WCT)	7	7	2	Yes	Analysis
5	4th Curro Durbanville Rapid Open 2025 (Advanced)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	2	Yes	Analysis
6	Bellville Rapid 2025 (A)	2025-06-07	2025-06-07	Rapid	Cape Town (WCT)	6	6	1	Yes	Analysis
7	Cape Town Chess Junior League 2025 (U16)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis
8	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	2.5	Yes	Analysis
9	Hermanus Chess Club Open 2025 (Intermediate)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	4.5	Yes	Analysis
10	Cape Town Open Chess Festival 2025 (C)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
11	Western Cape Closed 2025 (C)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
12	CT Metro Schools Individual Closed 2025 (U17 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
13	Cape of Good Hope Open 2025 (Advanced)	2025-02-22	2025-02-23	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
14	2025 District Central Schools Chess Individual Trials (U18 Open)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
15	Cape Town Masters Challenge 2025 (Advanced)	2025-01-06	2025-01-11	Standard	Cape Town (WCT)	9	9	4	Yes	Analysis
16	2025 Kraaifontein Open Chess Championships (Rapid Open)	2025-01-05	2025-01-05	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (C)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	7	4.5	Yes	Analysis
2	Cape Town Chess Federation Club League 2025 (D)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	0	0	No	Analysis
3	UCT Open Chess Championship 2025 (Advanced)	2025-10-10	2025-10-12	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
4	Royal Rapid Challenge 2025 (A)	2025-10-04	2025-10-04	Rapid	Cape Town (WCT)	7	7	2	Yes	Analysis
5	4th Curro Durbanville Rapid Open 2025 (Advanced)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	2	Yes	Analysis
6	Bellville Rapid 2025 (A)	2025-06-07	2025-06-07	Rapid	Cape Town (WCT)	6	6	1	Yes	Analysis
7	Cape Town Chess Junior League 2025 (U16)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis
8	Western Cape Schools Individual Championship 2025 (U17 Boys)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	2.5	Yes	Analysis
9	Hermanus Chess Club Open 2025 (Intermediate)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	4.5	Yes	Analysis
10	Cape Town Open Chess Festival 2025 (C)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
11	Western Cape Closed 2025 (C)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
12	CT Metro Schools Individual Closed 2025 (U17 Open)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
13	Cape of Good Hope Open 2025 (Advanced)	2025-02-22	2025-02-23	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
14	2025 District Central Schools Chess Individual Trials (U18 Open)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
15	Cape Town Masters Challenge 2025 (Advanced)	2025-01-06	2025-01-11	Standard	Cape Town (WCT)	9	9	4	Yes	Analysis
16	2025 Kraaifontein Open Chess Championships (Rapid Open)	2025-01-05	2025-01-05	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
17	2nd Strategize To Win Round-Robin Tournament ACL 2024 (G)	2024-12-07	2024-12-07	Standard	Cape Town (WCT)	5	4	2.5	Yes	Analysis
18	Rylib Summer Slam 2024 (Open)	2024-12-03	2024-12-03	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
19	UCT Open Chess Championship 2024 (Intermediate)	2024-10-12	2024-10-13	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
20	Spring Slam 2024 (B)	2024-10-05	2024-10-05	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
21	CT League 2024 (C)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	6	1	Yes	Analysis
22	CT League 2024 (D)	2024-08-03	2024-08-03	Standard	Cape Town (WCT)	6	3	3	Yes	Analysis
23	Westerford Chess Challenger 2024 (U15)	2024-07-25	2024-07-25	Rapid	Cape Town (WCT)	6	5	2.5	Yes	Analysis
24	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
25	Cape Town Chess Federation Closed Chess Championships 2024 (U16)	2024-06-15	2024-06-16	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
26	Steinitz Chess Festival 2024 (Open Rapid)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
27	Cape Town Open Chess Championship 2024 (Intermediate)	2024-03-16	2024-03-17	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
28	Cape Town Metro Schools Chess Closed Individuals 2024 (U15 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
29	CT Metro Central District Schools Chess Individuals Trials 2024 (U15 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
30	Cape of Good Hope Open Chess Tournament 2024 (Open)	2024-02-18	2024-02-18	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
31	Rylib Summer Slam 2023 (Development)	2023-12-12	2023-12-12	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
32	Chess Elevation Series 2023 (Level 1A)	2023-11-03	2023-11-04	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
33	Chess Challengers Championship � High School 2023 (U15)	2023-10-14	2023-10-14	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
34	GPCA Rapid 2023 (Advanced)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	7	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament UCT Open Chess Championship 2025				Tournament UCT Open Chess Championship 2025
		date 2025-10-11	rnd 2	type Standard	result 1	date 2025-10-12	rnd 6	type Standard	result 1
		Opponent Vengeni, A (Asanda)				Opponent Baron, D (Dylan)
2	5	Tournament Rylib Summer Slam 2024				Tournament Rylib Summer Slam 2024
		date 2024-12-03	rnd 1	type Rapid	result 1	date 2024-12-03	rnd 5	type Rapid	result 1
		Opponent Smit, M (Mario)				Opponent Webber, CPS (Colin)
3	5	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Cape Town Open Chess Championship 2024
		date 2024-03-03	rnd 6	type Standard	result 0.5	date 2024-03-16	rnd 4	type Standard	result 1
		Opponent Oliphant, E (Ehan)				Opponent Cockin, R (Ruan)

#	Games	Start				End
1	5	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Cape Town Open Chess Championship 2024
		date 2024-03-03	rnd 6	type Standard	result 0.5	date 2024-03-16	rnd 4	type Standard	result 1
		Opponent Oliphant, E (Ehan)				Opponent Cockin, R (Ruan)
2	4	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-10	rnd 1	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Rubusana, N (Nina)				Opponent Sinclair, D (Dino)
3	4	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 2	type Standard	result 1
		Opponent Mtati, W (Wazo)				Opponent Mangali, O (Ongama)

#	Games	Start				End
1	5	Tournament Rylib Summer Slam 2024				Tournament Rylib Summer Slam 2024
		date 2024-12-03	rnd 1	type Rapid	result 1	date 2024-12-03	rnd 5	type Rapid	result 1
		Opponent Smit, M (Mario)				Opponent Webber, CPS (Colin)
2	4	Tournament Hermanus Chess Club Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-04-12	rnd 4	type Rapid	result 1	date 2025-04-12	rnd 7	type Rapid	result 1
		Opponent Jara, I (Iviwe)				Opponent Butau, G (George)
3	4	Tournament Chess Challengers Championship � High School 2023				Tournament Rylib Summer Slam 2023
		date 2023-10-14	rnd 6	type Rapid	result 1	date 2023-12-12	rnd 3	type Rapid	result 1
		Opponent Koegelenberg, U (Ulrich)				Opponent Temoore, A (Ameer)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Chess Elevation Series 2023				Tournament Rylib Summer Slam 2023
		date 2023-11-04	rnd 4	type Standard	result 1	date 2023-12-12	rnd 3	type Rapid	result 1
		Opponent Calitz, Z (Zandre)				Opponent Temoore, A (Ameer)
2	4	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-10	rnd 1	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Rubusana, N (Nina)				Opponent Sinclair, D (Dino)
3	4	Tournament Hermanus Chess Club Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-04-12	rnd 4	type Rapid	result 1	date 2025-04-12	rnd 7	type Rapid	result 1
		Opponent Jara, I (Iviwe)				Opponent Butau, G (George)

#	Games	Start				End
1	4	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-10	rnd 1	type Standard	result 1	date 2025-05-31	rnd 5	type Standard	result 1
		Opponent Rubusana, N (Nina)				Opponent Sinclair, D (Dino)
2	4	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 2	type Standard	result 1
		Opponent Mtati, W (Wazo)				Opponent Mangali, O (Ongama)
3	4	Tournament CT Metro Schools Individual Closed 2025				Tournament Western Cape Closed 2025
		date 2025-03-02	rnd 5	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Mkabile, O (Olwethu)				Opponent Green, L (Lyndon)

#	Games	Start				End
1	4	Tournament Hermanus Chess Club Open 2025				Tournament Hermanus Chess Club Open 2025
		date 2025-04-12	rnd 4	type Rapid	result 1	date 2025-04-12	rnd 7	type Rapid	result 1
		Opponent Jara, I (Iviwe)				Opponent Butau, G (George)
2	4	Tournament Chess Challengers Championship � High School 2023				Tournament Rylib Summer Slam 2023
		date 2023-10-14	rnd 6	type Rapid	result 1	date 2023-12-12	rnd 3	type Rapid	result 1
		Opponent Koegelenberg, U (Ulrich)				Opponent Temoore, A (Ameer)
3	3	Tournament Rylib Summer Slam 2023				Tournament Cape of Good Hope Open Chess Tournament 2024
		date 2023-12-12	rnd 5	type Rapid	result 1	date 2024-02-18	rnd 1	type Rapid	result 1
		Opponent Mtintsilana, A (Athabile)				Opponent Zotwana, A (Asimanye)

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	Webber ,CPS (Colin Peter Slade)	3	2	141.7	0	0	0	3	2	141.7	0	0	0
1	Webber ,CPS (Colin Peter Slade)	3	1340.7	1482.3	0	0	0	3	1372.4	1482.3	0	0	0
2	Kieser ,M (Michael)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
2	Kieser ,M (Michael)	2	1222.3	1434.8	2	1205.8	1434.8	0	0	0	0	0	0
3	Hagan ,T (Tristin)	2	2	425	2	2	425	0	0	0	0	0	0
3	Hagan ,T (Tristin)	2	1284.1	1709.1	2	1247.3	1709.1	0	0	0	0	0	0
4	Mtati ,W (Wazo)	2	1	0	2	1	0	0	0	0	0	0	0
4	Mtati ,W (Wazo)	2	1297	1297	2	1265.3	1297	0	0	0	0	0	0
5	Green ,L (Lyndon)	2	1	0	2	1	0	0	0	0	0	0	0
5	Green ,L (Lyndon)	2	1320.9	1320.9	2	1322.7	1320.9	0	0	0	0	0	0
6	Mangali ,O (Ongama)	2	1	0	2	1	0	0	0	0	0	0	0
6	Mangali ,O (Ongama)	2	1224.4	1224.4	2	1246.3	1224.4	0	0	0	0	0	0
7	Snyman ,MM (Mila Marie)	2	1	0	2	1	0	0	0	0	0	0	0
7	Snyman ,MM (Mila Marie)	2	1631.2	1631.2	2	1630.6	1631.2	0	0	0	0	0	0
8	Cockin ,R (Ruan)	2	1	0	2	1	0	0	0	0	0	0	0
8	Cockin ,R (Ruan)	2	1485.9	1485.9	2	1467.7	1485.9	0	0	0	0	0	0
9	Pugh ,J (Jacob)	2	1	0	1	1	425	1	0	-425	0	0	0
9	Pugh ,J (Jacob)	2	1241.6	1241.6	1	1181.2	1666.6	1	1318.8	816.6	0	0	0
10	Preston ,W (Waylon)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Preston ,W (Waylon)	2	1391.4	966.4	1	1320.3	966.4	1	1445.6	966.4	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Dubbeld, B (Benjamin)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms