Chess South Africa Ratings Database

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Personal

Claassen, R (Ruwaldo)

Chess SA id

1060118499

FIDE id

Date of birth

2006-04-26 (U20)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1577.6	1573.4	1301.3	1399
Raw rating	1576.3	1573.4	1301.3	1399
Weighted rating	1577.6	1567.3	1256.9	1385.9
Weighted performance	1369.6	1344.9	0	1080.7
Floor	1093.7	1073.4	801.3	899
K-factor	32	32	36	36
Min/Max rating change allowed	97	97.4	143.5	124.9
Highest rating	1593.7 2024-11-01	1579.6 2024-04-01	1345.3 2019-08-01	1399 2024-11-01
Highest raw rating	1593.7 2024-11-01	1573.4 2024-10-01	1301.3 2025-08-01	1399 2024-11-01
Highest weighted rating	1574.7 2025-08-01	1562.8 2025-08-01	1246.9 2025-08-01	1380.6 2025-08-01
Highest weighted performance	1591.2 2024-04-01	1579.6 2024-04-01	0 2025-01-01	1522.5 2025-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	1.1	0	0	0
New rating	1578.7	1573.4	1301.3	1399
Analysis
Rating	1577.6	1573.4	1301.3	1399
Raw rating	1576.3	1573.4	1301.3	1399
Weighted rating	1577.6	1567.3	1256.9
Weighted performance	1369.6	1344.9	0
K-factor	32	32	36	36
Floor	1093.7	1073.4	801.3	899
Max/Min rating change allowed	97	97.4	143.5	124.9
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	1576.3	1573.4	1301.3	1399
New weighted rating	1578.7	1569.1	1261.6	1388.1
New weighted performance	1369.1	1344.4	0	1080.2
Temp new rating	1578.7	1573.4	1301.3	1399
Temp new rating +/-	1.1	0	0	0
Final new rating +/-	1.1	0	0	0
New rating	1578.7	1573.4	1301.3	1399
New K-factor	32	32	36	36
New floor	1093.7	1073.4	801.3	899

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	12	0	12	0
	49	37	0	12
	87	54	0	33
	48	31	5	12
	0	0	0	0
History	215	137	21	57

Games since
	Main 83	Standard 46		Rapid 12		Blitz 25
Gender	Male
Age group	U20
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	748		214		42
Male	667		187		38
U20	67		21		4
U20 Male	60		20		4
Standard
	RSA		Province		Region
Overall	717		192		39
Male	637		164		33
U20	67		21		4
U20 Male	58		19		3
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	188		77		26
Male	180		73		25
U20	18		8		3
U20 Male	17		7		3


	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	12	7	58.33	70.8	1452.1	1523
Standard	0	0	0	0	0	0
Rapid	12	7	58.33	70.8	1452.1	1523
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	215	146.5	68.14	154.2	1338.9	1493
Standard	137	92	67.15	145.8	1319	1464.8
Rapid	21	13	61.9	101.2	1396.3	1497.5
Blitz	57	41.5	72.81	193.9	1365.4	1559.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	1576.3	1573.4	1301.3	1399
2025-09-01	1576.3	1573.4	1301.3	1399
2025-08-01	1576.3	1573.4	1301.3	1399
2025-07-01	1583.6	1573.4	1272.7	1399
2025-06-01	1583.6	1573.4	1272.7	1399
2025-05-01	1583.6	1573.4	1272.7	1399
2025-04-01	1583.6	1573.4	1272.7	1399
2025-03-01	1583.6	1573.4	1272.7	1399
2025-02-01	1593.7	1573.4	1223.4	1399
2025-01-01	1593.7	1573.4	1223.4	1399
2024-12-01	1593.7	1573.4	1223.4	1399
2024-11-01	1593.7	1573.4	1223.4	1399
2024-10-01	1589.8	1573.4	1223.4	1369.5
2024-09-01	1577.6	1572.4	1223.4	1345.4
2024-08-01	1574.7	1569.8	1223.4	1345.4
2024-07-01	1574.7	1569.8	1223.4	1345.4
2024-06-01	1574.7	1569.8	1223.4	1345.4
2024-08-01	1574.7	1569.8	1223.4	1345.4
2024-04-01	1541.5	1537.5	1223.4	1345.4
2024-03-01	1487.1	1465.2	1223.4	1345.4
2024-02-01	1500.2	1479	1223.4	1345.4
2024-01-01	1500.2	1479	1223.4	1345.4
2023-12-01	1500.2	1479	1223.4	1345.4
2023-11-01	1488	1474.8	1223.4	1302.9

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	Knysna Oyster Festival Rapid 2025 (Open)	2025-07-12	2025-07-12	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
2	Eden Rapid 2025 (A)	2025-02-23	2025-02-23	Rapid	Eden (WEG)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Knysna Oyster Festival Rapid 2025 (Open)	2025-07-12	2025-07-12	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
2	Eden Rapid 2025 (A)	2025-02-23	2025-02-23	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
3	InterClub Blitz 5 2024	2024-10-07	2024-10-07	Blitz	Eden (WEG)	6	4	4	Yes	Analysis
4	Western Cape Top Schools Championship 2024 (U18 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	4	Yes	Analysis
5	InterClub Blitz 4 2024	2024-09-04	2024-09-04	Blitz	Eden (WEG)	10	8	7	Yes	Analysis
6	Eden Top Schools 2024 (U18 Open)	2024-08-17	2024-08-17	Standard	Eden (WEG)	5	5	4	Yes	Analysis
7	Eden Chess Trials 2 2024 (U20)	2024-04-13	2024-04-20	Standard	Eden (WEG)	10	10	8	Yes	Analysis
8	Western Cape HS Individuals Championship 2024 (U20 Boys+Girls)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	5.5	Yes	Analysis
9	Eden School Chess Trials 1 2024 (U20 Mix)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	4.5	Yes	Analysis
10	Mossel Bay Schools Trials 2 2024 (U19)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	4	Yes	Analysis
11	2023 Western Cape Rural Cup (U18)	2023-12-09	2023-12-10	Standard	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis
12	2023 Western Cape Rural Cup (Blitz)	2023-12-08	2023-12-08	Blitz	Cape Winelands (WCW)	7	7	4.5	Yes	Analysis
13	Eden Chess Union League 2023 (1st Division)	2023-11-11	2023-11-11	Standard	Eden (WEG)	5	5	3	Yes	Analysis
14	InterClub Blitz 2023	2023-10-11	2023-10-11	Blitz	Eden (WEG)	6	6	3	Yes	Analysis
15	Mossel Bay Open 2023 (A)	2023-09-30	2023-10-01	Standard	Eden (WEG)	6	6	3	Yes	Analysis
16	Mossel Bay Open 2023 (Blitz)	2023-09-29	2023-09-29	Blitz	Eden (WEG)	6	6	2.5	Yes	Analysis
17	Western Cape Top Schools 2023 (U18 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
18	Eden Top Schools 2023 (U18 Mix)	2023-08-19	2023-08-19	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
19	InterClub Blitz 3 2023	2023-07-20	2023-07-20	Blitz	Eden (WEG)	10	6	5	Yes	Analysis
20	Inter Club Blitz 2 2023 (Open)	2023-06-21	2023-06-21	Blitz	Eden (WEG)	10	8	7.5	Yes	Analysis
21	Eden Trials 2+3 2023 (U18)	2023-04-15	2023-05-13	Standard	Eden (WEG)	10	10	7.5	Yes	Analysis
22	Heidelberg Big Pumpkin Chess Tournament 2023 (A+B)	2023-04-01	2023-04-01	Standard	Eden (WEG)	5	4	1	Yes	Analysis
23	Eden Trails 1 2023 (U17 Boys)	2023-03-11	2023-03-11	Standard	Eden (WEG)	5	4	2	Yes	Analysis
24	Mossel Bay Schools Trials 2 2023 (U17 Boys)	2023-02-18	2023-02-18	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
25	Mossel Bay Schools Trials 1 2023 (U17 Boys)	2023-01-28	2023-01-28	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
26	Mossel Bay Open 2022 (B)	2022-09-30	2022-10-02	Standard	Eden (WEG)	6	6	4.5	Yes	Analysis
27	Interclub Blitz Evening (Mossel Bay)	2022-10-26	2022-10-26	Blitz	Eden (WEG)	6	6	4	Yes	Analysis
28	Western Cape Top Schools 2022 (U18 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
29	Knysna Oyster Festival Rapid Chess 2022 (A)	2022-07-02	2022-07-02	Rapid	Eden (WEG)	5	5	3	Yes	Analysis
30	Interclub Blitz Evening 2022	2022-06-08	2022-06-08	Blitz	Eden (WEG)	6	6	4	Yes	Analysis
31	George Open 2022 (B)	2022-06-11	2022-06-11	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
32	Eden Proewe 2 2022 (O18 Seuns)	2022-04-09	2022-04-09	Standard	Eden (WEG)	5	5	3	Yes	Analysis
33	Eden Proewe 1 2022 (O18 Seuns)	2022-03-12	2022-03-12	Standard	Eden (WEG)	5	5	3	Yes	Analysis
34	Mosselbaai Skole Skaak Proewe 1 2022 (U18 Open)	2022-01-29	2022-01-29	Standard	Eden (WEG)	5	5	3	Yes	Analysis
35	Eden Schools Closed Trials 1 2020 (U15 Boys)	2020-03-07	2020-03-07	Standard	Eden (WEG)	5	5	2	Yes	Analysis
36	Mossel Bay Trials 2 2020 (U15)	2020-02-15	2020-02-15	Standard	Eden (WEG)	5	5	4	Yes	Analysis
37	Mossel Bay Trials 1 2020 (U15)	2020-02-01	2020-02-01	Standard	Eden (WEG)	5	5	3	Yes	Analysis
38	Eden Chess League 2019 (3rd Division)	2019-08-24	2019-08-24	Rapid	Eden (WEG)	5	4	3	Yes	Analysis

#	Games	Start				End
1	16	Tournament Mossel Bay Schools Trials 2 2024				Tournament Eden Chess Trials 2 2024
		date 2024-02-17	rnd 5	type Standard	result 1	date 2024-04-13	rnd 4	type Standard	result 1
		Opponent De Vries, L (Logan)				Opponent Taute, C (Clayden)
2	12	Tournament Western Cape Top Schools Championship 2024				Tournament InterClub Blitz 4 2024
		date 2024-08-30	rnd 2	type Standard	result 1	date 2024-09-04	rnd 9	type Blitz	result 1
		Opponent Africa, G (Gillmore)				Opponent Scholtz, H (Hanko)
3	12	Tournament Inter Club Blitz 2 2023				Tournament InterClub Blitz 3 2023
		date 2023-06-21	rnd 1	type Blitz	result 1	date 2023-07-20	rnd 6	type Blitz	result 1
		Opponent Oktober, D (Dimitri)				Opponent Reynolds, E (Erwee)

#	Games	Start				End
1	16	Tournament Mossel Bay Schools Trials 2 2024				Tournament Eden Chess Trials 2 2024
		date 2024-02-17	rnd 5	type Standard	result 1	date 2024-04-13	rnd 4	type Standard	result 1
		Opponent De Vries, L (Logan)				Opponent Taute, C (Clayden)
2	14	Tournament George Open 2022				Tournament Mossel Bay Open 2022
		date 2022-06-11	rnd 2	type Standard	result 1	date 2022-10-02	rnd 5	type Standard	result 1
		Opponent Stafford, P (Paul)				Opponent Michaels, A (Antonio)
3	7	Tournament Eden Top Schools 2023				Tournament Western Cape Top Schools 2023
		date 2023-08-19	rnd 3	type Standard	result 1	date 2023-09-02	rnd 4	type Standard	result 1
		Opponent Taute, C (Clayden)				Opponent Geyser, K (Kobus)

#	Games	Start				End
1	3	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Eden Rapid 2025
		date 2022-07-02	rnd 4	type Rapid	result 1	date 2025-02-23	rnd 1	type Rapid	result 1
		Opponent Valentine, J (Jaden)				Opponent Eksteen, L (Leigh Quin)
2	2	Tournament Knysna Oyster Festival Rapid 2025				Tournament Knysna Oyster Festival Rapid 2025
		date 2025-07-12	rnd 3	type Rapid	result 1	date 2025-07-12	rnd 4	type Rapid	result 1
		Opponent Fredericks, R (Ritlee)				Opponent Bowen, AJ (Anthony John)
3	2	Tournament Eden Rapid 2025				Tournament Knysna Oyster Festival Rapid 2025
		date 2025-02-23	rnd 6	type Rapid	result 1	date 2025-07-12	rnd 1	type Rapid	result 1
		Opponent Stembok, E (Embrose)				Opponent Hermanus, P (Peter)

#	Games	Start				End
1	13	Tournament Interclub Blitz Evening				Tournament InterClub Blitz 3 2023
		date 2022-10-26	rnd 6	type Blitz	result 1	date 2023-07-20	rnd 6	type Blitz	result 1
		Opponent Jafta, S (Shaunley)				Opponent Reynolds, E (Erwee)
2	7	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 1	type Blitz	result 1	date 2024-09-04	rnd 9	type Blitz	result 1
		Opponent Marner, L (Loannes)				Opponent Scholtz, H (Hanko)
3	4	Tournament InterClub Blitz 5 2024				Tournament InterClub Blitz 5 2024
		date 2024-10-07	rnd 3	type Blitz	result 1	date 2024-10-07	rnd 6	type Blitz	result 1
		Opponent Lewis, M (Mark)				Opponent Reynolds, E (Erwee)

#	Games	Start				End
1	10	Tournament Inter Club Blitz 2 2023				Tournament InterClub Blitz 3 2023
		date 2023-06-21	rnd 3	type Blitz	result 1	date 2023-07-20	rnd 6	type Blitz	result 1
		Opponent Claassen, M (Maurice)				Opponent Reynolds, E (Erwee)
2	9	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Mossel Bay Open 2022
		date 2022-07-02	rnd 4	type Rapid	result 1	date 2022-10-01	rnd 2	type Standard	result 1
		Opponent Valentine, J (Jaden)				Opponent Jacobs, S (Shaquille)
3	8	Tournament Western Cape Top Schools Championship 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-01	rnd 6	type Standard	result 1	date 2024-09-04	rnd 9	type Blitz	result 1
		Opponent Sadan, D (Dayaan)				Opponent Scholtz, H (Hanko)

#	Games	Start				End
1	7	Tournament Western Cape Top Schools 2022				Tournament Mossel Bay Open 2022
		date 2022-09-16	rnd 1	type Standard	result 1	date 2022-10-01	rnd 2	type Standard	result 1
		Opponent Hogan, L (Lee)				Opponent Jacobs, S (Shaquille)
2	5	Tournament Western Cape HS Individuals Championship 2024				Tournament Eden Chess Trials 2 2024
		date 2024-03-22	rnd 6	type Standard	result 1	date 2024-04-13	rnd 4	type Standard	result 1
		Opponent Goliath, P (Peterianho)				Opponent Taute, C (Clayden)
3	5	Tournament Eden School Chess Trials 1 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-09	rnd 5	type Standard	result 1	date 2024-03-21	rnd 4	type Standard	result 1
		Opponent Goliath, P (Peterianho)				Opponent Yacoob, A (Ameera)

#	Games	Start				End
1	3	Tournament Knysna Oyster Festival Rapid Chess 2022				Tournament Eden Rapid 2025
		date 2022-07-02	rnd 4	type Rapid	result 1	date 2025-02-23	rnd 1	type Rapid	result 1
		Opponent Valentine, J (Jaden)				Opponent Eksteen, L (Leigh Quin)
2	2	Tournament Knysna Oyster Festival Rapid 2025				Tournament Knysna Oyster Festival Rapid 2025
		date 2025-07-12	rnd 3	type Rapid	result 1	date 2025-07-12	rnd 4	type Rapid	result 1
		Opponent Fredericks, R (Ritlee)				Opponent Bowen, AJ (Anthony John)
3	2	Tournament Eden Rapid 2025				Tournament Knysna Oyster Festival Rapid 2025
		date 2025-02-23	rnd 6	type Rapid	result 1	date 2025-07-12	rnd 1	type Rapid	result 1
		Opponent Stembok, E (Embrose)				Opponent Hermanus, P (Peter)

#	Games	Start				End
1	10	Tournament Inter Club Blitz 2 2023				Tournament InterClub Blitz 3 2023
		date 2023-06-21	rnd 3	type Blitz	result 1	date 2023-07-20	rnd 6	type Blitz	result 1
		Opponent Claassen, M (Maurice)				Opponent Reynolds, E (Erwee)
2	7	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 4 2024
		date 2024-09-04	rnd 1	type Blitz	result 1	date 2024-09-04	rnd 9	type Blitz	result 1
		Opponent Marner, L (Loannes)				Opponent Scholtz, H (Hanko)
3	4	Tournament InterClub Blitz 5 2024				Tournament InterClub Blitz 5 2024
		date 2024-10-07	rnd 3	type Blitz	result 1	date 2024-10-07	rnd 6	type Blitz	result 1
		Opponent Lewis, M (Mark)				Opponent Reynolds, E (Erwee)

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	Joubert ,K (Kyle)	6	3	0	6	3	0	0	0	0	0	0	0
1	Joubert ,K (Kyle)	6	1328.5	1328.5	6	1323.3	1328.5	0	0	0	0	0	0
2	Michaels ,A (Antonio)	4	2	0	4	2	0	0	0	0	0	0	0
2	Michaels ,A (Antonio)	4	1448.9	1448.9	4	1425.8	1448.9	0	0	0	0	0	0
3	De Lange ,G (Gebhart)	4	4	425	4	4	425	0	0	0	0	0	0
3	De Lange ,G (Gebhart)	4	1187.8	1612.8	4	1175.7	1612.8	0	0	0	0	0	0
4	Taute ,C (Clayden)	4	3	212.5	3	2	141.7	0	0	0	1	1	425
4	Taute ,C (Clayden)	4	1603.4	1815.9	3	1522	1745.1	0	0	0	1	1548.3	2028.4
5	Daniels ,R (Reuben)	4	1	-212.5	2	1	0	1	0	-425	1	0	-425
5	Daniels ,R (Reuben)	4	1569.1	1356.6	2	1521	1569.1	1	1478.8	1144.1	1	1399.3	1144.1
6	Reynolds ,E (Erwee)	4	4	425	0	0	0	0	0	0	4	4	425
6	Reynolds ,E (Erwee)	4	1240.2	1665.2	0	0	0	0	0	0	4	1001.2	1665.2
7	Lewis ,M (Mark)	4	4	425	0	0	0	0	0	0	4	4	425
7	Lewis ,M (Mark)	4	1301.7	1726.7	0	0	0	0	0	0	4	1208	1726.7
8	Jafta ,S (Shaunley)	4	2.5	106.2	0	0	0	0	0	0	4	2.5	106.2
8	Jafta ,S (Shaunley)	4	1346.6	1452.8	0	0	0	0	0	0	4	1147.1	1452.8
9	Spies ,J (Jereldo)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
9	Spies ,J (Jereldo)	3	1055.8	1339.1	3	1034.3	1339.1	0	0	0	0	0	0
10	De Villiers ,C (Cohen)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
10	De Villiers ,C (Cohen)	3	1163.7	1022	3	1156.5	1022	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Claassen, R (Ruwaldo)

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Last 24 raw ratings

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Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms