Chess South Africa Ratings Database

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Personal

Prinsloo, W (Willem)

Chess SA id

1140192801

FIDE id

Date of birth

2014-11-03 (U12)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-30

Personal details last changed

1900-01-01

Junior GPX Games

33.7

Junior GPX Points

1285.2

Item	Main	Standard	Rapid	Blitz
Rating	1547.6	1302	1574	1200
Raw rating	1480	1302	1380	1200
Weighted rating	1285.8	1223.2	1243.8	1200
Weighted performance	1547.6	1274	1574	0
Floor	980	802	880	700
K-factor	32	36	36	36
Min/Max rating change allowed	111.3	143.4	128.3	165.8
Highest rating	1480 2025-09-01	1302 2025-08-01	1380 2025-09-01	1200 2024-02-01
Highest raw rating	1480 2025-09-01	1302 2025-08-01	1380 2025-09-01	1200 2024-02-01
Highest weighted rating	1326.7 2024-02-01	1271.5 2024-02-01	1260.6 2024-10-01	1200 2024-02-01
Highest weighted performance	1563.2 2025-09-01	1302 2024-02-01	1589.9 2025-09-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.6	0	-1.6	0
New rating	1546	1302	1572.3	1200
Analysis
Rating	1547.6	1302	1574	1200
Raw rating	1480	1302	1380	1200
Weighted rating	1285.8	1223.2	1243.8
Weighted performance	1547.6	1274	1574
K-factor	32	36	36	36
Floor	980	802	880	700
Max/Min rating change allowed	111.3	143.4	128.3	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	1480	1302	1380	1200
New weighted rating	1304.6	1231.2	1255.9	1200
New weighted performance	1546	1272.6	1572.3	0
Temp new rating	1546	1302	1572.3	1200
Temp new rating +/-	-1.6	0	-1.6	0
Final new rating +/-	-1.6	0	-1.6	0
New rating	1546	1302	1572.3	1200
New K-factor	32	36	36	36
New floor	980	802	880	700

Item	Main	Standard	Rapid
	0	0	0
	43	21	22
	22	5	17
	0	0	0
	0	0	0
	0	0	0
History	65	26	39

Games since
	Main 65	Standard 26		Rapid 39		Blitz 0
Gender	Male
Age group	U12
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	903		263		31
Male	800		225		23
U12	80		25		2
U12 Male	63		19		1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	127		56		8
Male	123		54		8
U12	7		6		2
U12 Male	6		5		2
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	43	30.5	70.93	177.9	1346.2	1524.1
Standard	21	11.5	54.76	40.5	1340.6	1381.1
Rapid	22	19	86.36	309.1	1351.6	1660.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	65	40.5	62.31	104.6	1308.2	1412.9
Standard	26	12.5	48.08	-16.3	1326.6	1310.2
Rapid	39	28	71.79	185.3	1296	1481.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1480	1302	1380	1200
2025-09-01	1480	1302	1380	1200
2025-08-01	1345.2	1302	1218.5	1200
2025-07-01	1326.7	1271.5	1218.5	1200
2025-06-01	1326.7	1271.5	1218.5	1200
2025-05-01	1326.7	1271.5	1218.5	1200
2025-04-01	1326.7	1271.5	1218.5	1200
2025-03-01	1276.7	1244.7	1218.5	1200
2025-02-01	1188.3	1161.3	1218.5	1200
2025-01-01	1194.2	1144.8	1218.5	1200
2024-12-01	1194.2	1144.8	1218.5	1200
2024-11-01	1194.2	1144.8	1218.5	1200
2024-10-01	1206.1	1144.8	1260.6	1200
2024-09-01	1206.1	1144.8	1260.6	1200
2024-08-01	1162.9	1144.8	1200.8	1200
2024-07-01	1162.9	1144.8	1200.8	1200
2024-06-01	1162.9	1144.8	1200.8	1200
2024-08-01	1162.9	1144.8	1200.8	1200
2024-04-01	1162.9	1144.8	1200.8	1200
2024-03-01	1197.4	1200	1200.8	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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	Kleinmond Chess Club Open 2025 (U12)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
2	Curro Chess Open Rapid 2025 (U12)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
3	Stellenbosch Primary 2025 (U11)	2025-08-16	2025-08-16	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
4	Cape Winelands Schools Development 2025 (U11 Boys)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
5	Cape Winelands Open 2025 (U12)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
6	Cape Winelands Schools Prestige 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U11 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
8	Marie Delport Memorial 2025 (U12 Boys)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Kleinmond Chess Club Open 2025 (U12)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
2	Curro Chess Open Rapid 2025 (U12)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
3	Stellenbosch Primary 2025 (U11)	2025-08-16	2025-08-16	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
4	Cape Winelands Schools Development 2025 (U11 Boys)	2025-08-02	2025-08-02	Rapid	Cape Winelands (WCW)	5	5	5	Yes	Analysis
5	Cape Winelands Open 2025 (U12)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
6	Cape Winelands Schools Prestige 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
7	Cape Winelands Schools - Trials 1 2025 (U11 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
8	Marie Delport Memorial 2025 (U12 Boys)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
9	Laerskool Welgemoed Rapid 2024 (U12)	2024-10-19	2024-10-19	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
10	Stellenbosch Primary 2024 (U11)	2024-08-17	2024-08-17	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
11	Cape Winelands Schools - Prestige 2024 (U11 Boys)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
12	Cape Winelands Schools - PS Trials 1 2024 (U11 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis

#	Games	Start				End
1	11	Tournament Cape Winelands Schools Development 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Andrews, J (Jerahn)				Opponent Amoraal, S (Simeon)
2	7	Tournament Curro Chess Open Rapid 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-23	rnd 6	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Rockman Gonzales, K (Kendal)				Opponent Snyman, V (Van Zyl)
3	5	Tournament Marie Delport Memorial 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-01-26	rnd 6	type Standard	result 0.5	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Venter, L (Logan)				Opponent Robertson, M (Marvin)

#	Games	Start				End
1	5	Tournament Marie Delport Memorial 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-01-26	rnd 6	type Standard	result 0.5	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Venter, L (Logan)				Opponent Robertson, M (Marvin)
2	3	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Open 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-07-19	rnd 2	type Standard	result 1
		Opponent Meisel, M (Michael)				Opponent Johnson, B (Brian)
3	1	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 3	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Arendse, D (Diego)				Opponent Arendse, D (Diego)

#	Games	Start				End
1	12	Tournament Laerskool Welgemoed Rapid 2024				Tournament Curro Chess Open Rapid 2025
		date 2024-10-19	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Smith, L (Llewellyn)				Opponent Amoraal, S (Simeon)
2	7	Tournament Curro Chess Open Rapid 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-23	rnd 6	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Rockman Gonzales, K (Kendal)				Opponent Snyman, V (Van Zyl)
3	3	Tournament Stellenbosch Primary 2024				Tournament Stellenbosch Primary 2024
		date 2024-08-17	rnd 3	type Rapid	result 1	date 2024-08-17	rnd 5	type Rapid	result 1
		Opponent Jumat, M (Mj)				Opponent Nagel, A (Alexander)

No games found.

#	Games	Start				End

#	Games	Start				End
1	11	Tournament Cape Winelands Schools Development 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-02	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Andrews, J (Jerahn)				Opponent Amoraal, S (Simeon)
2	4	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Smit, N (Nicolai)				Opponent Robertson, M (Marvin)
3	3	Tournament Curro Chess Open Rapid 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-23	rnd 6	type Rapid	result 1	date 2025-08-30	rnd 2	type Rapid	result 1
		Opponent Rockman Gonzales, K (Kendal)				Opponent Van Der Walt, T (Tristan)

#	Games	Start				End
1	4	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Smit, N (Nicolai)				Opponent Robertson, M (Marvin)
2	3	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Open 2025
		date 2025-03-08	rnd 5	type Standard	result 1	date 2025-07-19	rnd 2	type Standard	result 1
		Opponent Meisel, M (Michael)				Opponent Johnson, B (Brian)
3	1	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 3	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Arendse, D (Diego)				Opponent Arendse, D (Diego)

#	Games	Start				End
1	12	Tournament Laerskool Welgemoed Rapid 2024				Tournament Curro Chess Open Rapid 2025
		date 2024-10-19	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Smith, L (Llewellyn)				Opponent Amoraal, S (Simeon)
2	3	Tournament Curro Chess Open Rapid 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-23	rnd 6	type Rapid	result 1	date 2025-08-30	rnd 2	type Rapid	result 1
		Opponent Rockman Gonzales, K (Kendal)				Opponent Van Der Walt, T (Tristan)
3	3	Tournament Stellenbosch Primary 2024				Tournament Stellenbosch Primary 2024
		date 2024-08-17	rnd 3	type Rapid	result 1	date 2024-08-17	rnd 5	type Rapid	result 1
		Opponent Jumat, M (Mj)				Opponent Nagel, A (Alexander)

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	Viljoen ,A (Adrihan)	2	1	0	2	1	0	0	0	0	0	0	0
1	Viljoen ,A (Adrihan)	2	1345.2	1345.2	2	1319.1	1345.2	0	0	0	0	0	0
2	Van Wyk ,M (Micaile)	2	0.5	-212.5	1	0	-425	1	0.5	0	0	0	0
2	Van Wyk ,M (Micaile)	2	1493.7	1281.2	1	1362.3	1068.7	1	1587	1493.7	0	0	0
3	Visser ,D (David)	2	1	0	1	0	-425	1	1	425	0	0	0
3	Visser ,D (David)	2	1220.8	1220.8	1	1200	795.8	1	1245	1645.8	0	0	0
4	Smit ,N (Nicolai)	2	2	425	1	1	425	1	1	425	0	0	0
4	Smit ,N (Nicolai)	2	1199.8	1624.8	1	1200	1624.8	1	1200	1624.8	0	0	0
5	Bekker ,T (Thian)	2	2	425	0	0	0	2	2	425	0	0	0
5	Bekker ,T (Thian)	2	1302.2	1727.2	0	0	0	2	1197.5	1727.2	0	0	0
6	Stevens ,C (Caleb)	1	1	425	1	1	425	0	0	0	0	0	0
6	Stevens ,C (Caleb)	1	1157.2	1582.2	1	1149.6	1582.2	0	0	0	0	0	0
7	Lambrechts ,M (Madison)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Lambrechts ,M (Madison)	1	1500.6	1075.6	1	1498.9	1075.6	0	0	0	0	0	0
8	Van Aarde ,M (Morne)	1	1	425	1	1	425	0	0	0	0	0	0
8	Van Aarde ,M (Morne)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	De Koker ,L (Lloyd)	1	1	425	1	1	425	0	0	0	0	0	0
9	De Koker ,L (Lloyd)	1	1247.9	1672.9	1	1228.8	1672.9	0	0	0	0	0	0
10	Arendse ,D (Diego)	1	1	425	1	1	425	0	0	0	0	0	0
10	Arendse ,D (Diego)	1	1197.8	1622.8	1	1197	1622.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Prinsloo, W (Willem)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms