Chess South Africa Ratings Database

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Personal

Coetzer, R (Rossouw)

Chess SA id

1170159267

FIDE id

Date of birth

2017-02-01 (U10)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

59.7

Junior GPX Points

1202.1

Item	Main	Standard	Rapid	Blitz
Rating	1407.9	1369.6	1424.4	1298.5
Raw rating	1407.9	1369.6	1424.4	1298.5
Weighted rating	1398.3	1360.1	1390.1	1242.3
Weighted performance	1314.1	1276.4	1356.2	0
Floor	971.5	948.9	1014.7	798.5
K-factor	32	32	32	36
Min/Max rating change allowed	123.3	130.2	120.4	144.1
Highest rating	1471.5 2025-04-01	1513.9 2024-05-01	1514.7 2025-03-01	1298.5 2025-05-05
Highest raw rating	1471.5 2025-04-01	1448.9 2024-11-01	1514.7 2025-03-01	1298.5 2025-05-05
Highest weighted rating	1398.3 2025-09-30	1352.6 2025-08-01	1390.1 2025-09-30	1229.5 2025-08-01
Highest weighted performance	1471.4 2025-04-01	1513.9 2024-05-01	1514.7 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1407.9	1369.6	1424.4	1298.5
Analysis
Rating	1407.9	1369.6	1424.4	1298.5
Raw rating	1407.9	1369.6	1424.4	1298.5
Weighted rating	1398.3	1360.1	1390.1
Weighted performance	1314.1	1276.4	1356.2
K-factor	32	32	32	36
Floor	971.5	948.9	1014.7	798.5
Max/Min rating change allowed	123.3	130.2	120.4	144.1
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	1407.9	1369.6	1424.4	1298.5
New weighted rating	1401.9	1363.1	1396.9	1248.3
New weighted performance	1313.6	1275.9	1355.8	0
Temp new rating	1407.9	1369.6	1424.4	1298.5
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1407.9	1369.6	1424.4	1298.5
New K-factor	32	32	32	36
New floor	971.5	948.9	1014.7	798.5

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	79	20	48	11
	68	48	20	0
	5	5	0	0
	0	0	0	0
	0	0	0	0
History	152	73	68	11

Games since
	Main 147	Standard 68		Rapid 68		Blitz 11
Gender	Male
Age group	U10
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2086		632		36
Male	1723		496		24
U10	135		34		4
U10 Male	120		27		4
Standard
	RSA		Province		Region
Overall	2378		664		38
Male	1930		499		27
U10	173		46		5
U10 Male	147		34		5
Rapid
	RSA		Province		Region
Overall	416		205		14
Male	370		180		13
U10	20		10		2
U10 Male	17		7		2
Blitz
	RSA		Province		Region
Overall	289		116		3
Male	274		112		3
U10	2		1		1
U10 Male	2		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	79	47.5	60.13	86.1	1356	1442.1
Standard	20	11	55	42.5	1348.6	1391.1
Rapid	48	31.5	65.62	132.8	1331.9	1464.7
Blitz	11	5	45.45	-38.6	1474.7	1436.1
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	152	98	64.47	123	1301.4	1424.4
Standard	73	47	64.38	122.3	1277.3	1399.6
Rapid	68	46	67.65	150	1299.2	1449.2
Blitz	11	5	45.45	-38.6	1474.7	1436.1

Date	Main	Standard	Rapid	Blitz
2025-09-30	1407.9	1369.6	1424.4	1298.5
2025-09-01	1406.5	1369.6	1432.1	1298.5
2025-08-01	1406.5	1369.6	1432.1	1298.5
2025-07-01	1418.5	1369.6	1467.1	1298.5
2025-06-01	1418.5	1369.6	1467.1	1298.5
2025-05-01	1386.6	1343.6	1462.5	1298.5
2025-04-01	1471.5	1381.9	1514.7	1200
2025-03-01	1468.5	1373.4	1514.7	1200
2025-02-01	1377.1	1373.4	1330	1200
2025-01-01	1377.1	1373.4	1330	1200
2024-12-01	1381.9	1378.5	1330	1200
2024-11-01	1440.3	1448.9	1330	1200
2024-10-01	1406	1380.4	1330	1200
2024-09-01	1401.7	1343.3	1317	1200
2024-08-01	1401.7	1343.3	1317	1200
2024-07-01	1429.3	1375.3	1317	1200
2024-06-01	1422	1375.3	1281.4	1200
2024-08-01	1304.3	1269.8	1281.4	1200
2024-04-01	1304.3	1269.8	1281.4	1200
2024-03-01	1210.6	1218	1192.8	1200
2024-02-01	1210.6	1218	1192.8	1200
2024-01-01	1215.2	1218	1200	1200
2023-12-01	1215.2	1218	1200	1200
2023-11-01	1215.2	1218	1200	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	Kingsway Chess Open 2025 (U8)	2025-09-20	2025-09-20	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
2	4th Curro Durbanville Rapid Open 2025 (Intermediate)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	4	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
4	Brave Knights Rapid 2025 (U9)	2025-05-03	2025-05-03	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
5	FIDE World Cadet & Youth Rapid & Blitz Championships 2025 (Blitz)	2025-04-16	2025-04-17	Blitz	Geece (GRE)	11	11	5	Yes	Analysis
6	FIDE World Cadet & Youth Rapid & Blitz Championships 2025 (Rapid)	2025-04-13	2025-04-15	Rapid	Greece (GRE)	11	11	4	Yes	Analysis
7	South African Junior Closed Chess Championships 2025 (U8 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	3.5	Yes	Analysis
8	Overberg Schools - PS Closed 2025 (U9 Boys)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
9	Overberg Schools - PS Trials (Region 1) 2025 (U9 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
10	Curro Hermanus Summer Open 2025 (U9)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
11	Overberg Schools & Federation Open 2025 (U9)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	5.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Kingsway Chess Open 2025 (U8)	2025-09-20	2025-09-20	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
2	4th Curro Durbanville Rapid Open 2025 (Intermediate)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	4	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
4	Brave Knights Rapid 2025 (U9)	2025-05-03	2025-05-03	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
5	FIDE World Cadet & Youth Rapid & Blitz Championships 2025 (Blitz)	2025-04-16	2025-04-17	Blitz	Geece (GRE)	11	11	5	Yes	Analysis
6	FIDE World Cadet & Youth Rapid & Blitz Championships 2025 (Rapid)	2025-04-13	2025-04-15	Rapid	Greece (GRE)	11	11	4	Yes	Analysis
7	South African Junior Closed Chess Championships 2025 (U8 Open)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	3.5	Yes	Analysis
8	Overberg Schools - PS Closed 2025 (U9 Boys)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
9	Overberg Schools - PS Trials (Region 1) 2025 (U9 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
10	Curro Hermanus Summer Open 2025 (U9)	2025-02-08	2025-02-08	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
11	Overberg Schools & Federation Open 2025 (U9)	2025-02-01	2025-02-01	Rapid	Overberg (WOS)	6	6	5.5	Yes	Analysis
12	Mzansi Interprovincial Youth Chess Championships 2024 (U8 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3.5	Yes	Analysis
13	Helderberg Chess Club Open 2024 (B)	2024-11-09	2024-11-10	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
14	Strategema Chess October 2024 (U7)	2024-10-05	2024-10-05	Standard	Cape Winelands (WCW)	5	5	5	Yes	Analysis
15	Overberg GP Invitational Day 2 2024 (C)	2024-09-27	2024-09-27	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
16	Overberg GP Invitational Day 1 2024 (C)	2024-09-26	2024-09-26	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
17	Kleinmond Chess Club Open 2024 (U10)	2024-09-07	2024-09-07	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
18	Western Cape Top Schools Championship 2024 (U7 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	5	4	3	Yes	Analysis
19	Overberg Schools - Top Schools 2024 (U7+U9 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
20	Western Cape - Kings and Queens 2024 (Boys)	2024-06-08	2024-06-08	Rapid	Overberg (WOS)	5	4	3.5	Yes	Analysis
21	Western Cape PS Individuals Championship 2024 (U7 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	6	Yes	Analysis
22	Overberg Schools - PS Closed 2024 (U7 Mixed)	2024-03-16	2024-03-16	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
23	Overberg Schools - PS Trials Region 3 2024 (U7 Mixed)	2024-03-02	2024-03-02	Rapid	Overberg (WOS)	5	5	5	Yes	Analysis
24	Overberg Open Rapid 2024 (U7+U9)	2024-01-27	2024-01-27	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
25	Overberg Top Schools 2023 (U7+U9)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	13	Tournament Overberg Schools - PS Closed 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-03-16	rnd 4	type Standard	result 1	date 2024-07-27	rnd 1	type Standard	result 0.5
		Opponent Henning, A (Alex)				Opponent Lingenfelder, S (Stephanus)
2	10	Tournament Overberg Schools & Federation Open 2025				Tournament Curro Hermanus Summer Open 2025
		date 2025-02-01	rnd 1	type Rapid	result 1	date 2025-02-08	rnd 4	type Rapid	result 1
		Opponent Grobbelaar, M (Marlo)				Opponent Crafford, Q (Quade)
3	8	Tournament Overberg GP Invitational Day 2 2024				Tournament Strategema Chess October 2024
		date 2024-09-27	rnd 3	type Standard	result 1	date 2024-10-05	rnd 5	type Standard	result 1
		Opponent Fourie, C (Cj)				Opponent Edons, E (Elijah)

#	Games	Start				End
1	9	Tournament Overberg Schools - PS Closed 2024				Tournament Overberg Schools - Top Schools 2024
		date 2024-03-16	rnd 4	type Standard	result 1	date 2024-07-27	rnd 1	type Standard	result 0.5
		Opponent Henning, A (Alex)				Opponent Lingenfelder, S (Stephanus)
2	8	Tournament Overberg GP Invitational Day 2 2024				Tournament Strategema Chess October 2024
		date 2024-09-27	rnd 3	type Standard	result 1	date 2024-10-05	rnd 5	type Standard	result 1
		Opponent Fourie, C (Cj)				Opponent Edons, E (Elijah)
3	6	Tournament Helderberg Chess Club Open 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-11-10	rnd 5	type Standard	result 1	date 2024-12-17	rnd 4	type Standard	result 0.5
		Opponent Jansen Van Rensburg, RE (Rylee Edward)				Opponent Arries, T (Tristan)

#	Games	Start				End
1	13	Tournament Overberg Open Rapid 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-01-27	rnd 5	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Mackenzie, T (Tylo)				Opponent Scholtz, M (Miche)
2	11	Tournament Kleinmond Chess Club Open 2024				Tournament Curro Hermanus Summer Open 2025
		date 2024-09-07	rnd 6	type Rapid	result 1	date 2025-02-08	rnd 4	type Rapid	result 1
		Opponent Tshota, E (Enkosi)				Opponent Crafford, Q (Quade)
3	5	Tournament Curro Hermanus Summer Open 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-08	rnd 6	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Louw, S (Sarel Johannes)				Opponent Faasen, C (Charles)

#	Games	Start				End
1	3	Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025				Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025
		date 2025-04-17	rnd 8	type Blitz	result 1	date 2025-04-17	rnd 10	type Blitz	result 1
		Opponent Rens, Beauwin				Opponent Ramonyai, Mbhekeni
2	1	Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025				Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025
		date 2025-04-16	rnd 6	type Blitz	result 1	date 2025-04-16	rnd 6	type Blitz	result 1
		Opponent Ermekov, Khan				Opponent Ermekov, Khan
3	1	Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025				Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025
		date 2025-04-16	rnd 3	type Blitz	result 1	date 2025-04-16	rnd 3	type Blitz	result 1
		Opponent Margies, Odysseas				Opponent Margies, Odysseas

#	Games	Start				End
1	8	Tournament Overberg Schools - PS Closed 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-03-16	rnd 4	type Standard	result 1	date 2024-05-05	rnd 6	type Standard	result 1
		Opponent Henning, A (Alex)				Opponent Van Der Merwe, F (Finley)
2	8	Tournament Overberg Open Rapid 2024				Tournament Overberg Schools - PS Closed 2024
		date 2024-01-27	rnd 5	type Rapid	result 1	date 2024-03-16	rnd 2	type Standard	result 1
		Opponent Mackenzie, T (Tylo)				Opponent Oosthuizen, J (Joshua)
3	5	Tournament Curro Hermanus Summer Open 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-08	rnd 6	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Louw, S (Sarel Johannes)				Opponent Faasen, C (Charles)

#	Games	Start				End
1	8	Tournament Overberg Schools - PS Closed 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-03-16	rnd 4	type Standard	result 1	date 2024-05-05	rnd 6	type Standard	result 1
		Opponent Henning, A (Alex)				Opponent Van Der Merwe, F (Finley)
2	5	Tournament Strategema Chess October 2024				Tournament Strategema Chess October 2024
		date 2024-10-05	rnd 1	type Standard	result 1	date 2024-10-05	rnd 5	type Standard	result 1
		Opponent Llopis Thomas, M (Matisse)				Opponent Edons, E (Elijah)
3	4	Tournament Helderberg Chess Club Open 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-11-10	rnd 5	type Standard	result 1	date 2024-12-16	rnd 2	type Standard	result 1
		Opponent Jansen Van Rensburg, RE (Rylee Edward)				Opponent Van Der Merwe, F (Finley)

#	Games	Start				End
1	6	Tournament Kleinmond Chess Club Open 2024				Tournament Overberg Schools & Federation Open 2025
		date 2024-09-07	rnd 6	type Rapid	result 1	date 2025-02-01	rnd 5	type Rapid	result 1
		Opponent Tshota, E (Enkosi)				Opponent Badenhorst, R (Rouxan)
2	6	Tournament Western Cape - Kings and Queens 2024				Tournament Kleinmond Chess Club Open 2024
		date 2024-06-08	rnd 3	type Rapid	result 1	date 2024-09-07	rnd 3	type Rapid	result 1
		Opponent Niemand, J (Jano)				Opponent Scholtz, M (Miche)
3	6	Tournament Overberg Open Rapid 2024				Tournament Overberg Schools - PS Trials Region 3 2024
		date 2024-01-27	rnd 5	type Rapid	result 1	date 2024-03-02	rnd 5	type Rapid	result 1
		Opponent Mackenzie, T (Tylo)				Opponent Avenant, J (Jone)

#	Games	Start				End
1	3	Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025				Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025
		date 2025-04-17	rnd 8	type Blitz	result 1	date 2025-04-17	rnd 10	type Blitz	result 1
		Opponent Rens, Beauwin				Opponent Ramonyai, Mbhekeni
2	1	Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025				Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025
		date 2025-04-16	rnd 6	type Blitz	result 1	date 2025-04-16	rnd 6	type Blitz	result 1
		Opponent Ermekov, Khan				Opponent Ermekov, Khan
3	1	Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025				Tournament FIDE World Cadet & Youth Rapid & Blitz Championships 2025
		date 2025-04-16	rnd 3	type Blitz	result 1	date 2025-04-16	rnd 3	type Blitz	result 1
		Opponent Margies, Odysseas				Opponent Margies, Odysseas

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	Louw ,S (Sarel Johannes)	9	7	236.1	6	4	141.7	3	3	425	0	0	0
1	Louw ,S (Sarel Johannes)	9	1222.2	1458.4	6	1220.2	1363.9	3	1198.3	1647.2	0	0	0
2	Badenhorst ,R (Rouxan)	7	2	-182.1	2	0	-425	5	2	-85	0	0	0
2	Badenhorst ,R (Rouxan)	7	1478.1	1295.9	2	1376.4	1053.1	5	1482.2	1393.1	0	0	0
3	Lourens ,L (Lihan)	5	4	255	3	2	141.7	2	2	425	0	0	0
3	Lourens ,L (Lihan)	5	1283.4	1538.4	3	1288	1425.1	2	1263.4	1708.4	0	0	0
4	Lingenfelder ,S (Stephanus)	4	2.5	106.2	1	0.5	0	3	2	141.7	0	0	0
4	Lingenfelder ,S (Stephanus)	4	1284.2	1390.4	1	1255	1284.2	3	1332.7	1425.8	0	0	0
5	Van Der Merwe ,F (Finley)	3	3	425	3	3	425	0	0	0	0	0	0
5	Van Der Merwe ,F (Finley)	3	1336.8	1761.8	3	1338.5	1761.8	0	0	0	0	0	0
6	Rens ,D (Deauwin)	3	2	141.7	2	1.5	212.5	1	0.5	0	0	0	0
6	Rens ,D (Deauwin)	3	1405.9	1547.6	2	1429.5	1618.4	1	1200	1405.9	0	0	0
7	Smit ,G (Gerrit)	3	3	425	2	2	425	1	1	425	0	0	0
7	Smit ,G (Gerrit)	3	1206.9	1631.9	2	1220.6	1631.9	1	1183.6	1631.9	0	0	0
8	Barnard ,H (Hendrik)	3	3	425	2	2	425	1	1	425	0	0	0
8	Barnard ,H (Hendrik)	3	1247.9	1672.9	2	1198.6	1672.9	1	1232.5	1672.9	0	0	0
9	Fourie ,C (Cj)	3	3	425	1	1	425	2	2	425	0	0	0
9	Fourie ,C (Cj)	3	1184	1609	1	1176.8	1609	2	1218.2	1609	0	0	0
10	Faasen ,C (Charles)	3	2.5	283.3	1	0.5	0	2	2	425	0	0	0
10	Faasen ,C (Charles)	3	1272.2	1555.6	1	1251.4	1272.2	2	1249.4	1697.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Coetzer, R (Rossouw)

Ratings

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Last 24 raw ratings

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Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms