Chess South Africa Ratings Database

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Williams, M (Mackenzy)

Chess SA id

2160137731

FIDE id

Date of birth

2016-01-27 (U10)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

55.9

Junior GPX Points

1234.5

Item	Main	Standard	Rapid	Blitz
Rating	1397.6	1382.7	1357.9	1200
Raw rating	1397.6	1382.7	1351.8	1200
Weighted rating	1335.1	1348.9	1244.2	1200
Weighted performance	1346.1	1308.7	1357.9	0
Floor	916.3	907	851.8	700
K-factor	32	32	36	36
Min/Max rating change allowed	125.1	127.8	133.6	165.8
Highest rating	1441 2023-05-01	1408.9 2023-05-01	1357.9 2025-11-01	1200 2018-10-01
Highest raw rating	1416.3 2023-06-01	1407 2025-04-01	1351.8 2025-11-01	1200 2024-03-01
Highest weighted rating	1416.3 2024-07-01	1407 2024-10-01	1244.2 2025-11-01	1200 2018-10-01
Highest weighted performance	1441 2023-05-01	1408.9 2023-05-01	1357.9 2025-11-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-6.1	0
New rating	1397.6	1382.7	1351.8	1200
Analysis
Rating	1397.6	1382.7	1357.9	1200
Raw rating	1397.6	1382.7	1351.8	1200
Weighted rating	1335.1	1348.9	1244.2
Weighted performance	1346.1	1308.7	1357.9
K-factor	32	32	36	36
Floor	916.3	907	851.8	700
Max/Min rating change allowed	125.1	127.8	133.6	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	1397.6	1382.7	1351.8	1200
New weighted rating	1341.5	1352.7	1254.2	1200
New weighted performance	1338	1300.5	1349.7	0
Temp new rating	1397.6	1382.7	1351.8	1200
Temp new rating +/-	0	0	-6.1	0
Final new rating +/-	0	0	-6.1	0
New rating	1397.6	1382.7	1351.8	1200
New K-factor	32	32	36	36
New floor	916.3	907	851.8	700

Item	Main	Standard	Rapid
	0	0	0
	54	31	23
	50	27	23
	35	20	15
	33	26	7
	0	0	0
History	172	104	68

Games since
	Main 109	Standard 58		Rapid 51		Blitz 0
Gender	Female
Age group	U10
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2207		687		103
Female	374		139		26
U10	148		37		4
U10 Female	16		8		1
Standard
	RSA		Province		Region
Overall	2289		634		94
Female	402		141		24
U10	164		36		4
U10 Female	21		8		1
Rapid
	RSA		Province		Region
Overall	731		378		60
Female	109		59		15
U10	48		23		3
U10 Female	9		6		1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U10	-1		-1		-1
U10 Female	-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	54	34.5	63.89	118.1	1288.4	1406.4
Standard	31	20	64.52	123.4	1280.6	1404
Rapid	23	14.5	63.04	110.9	1298.8	1409.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	172	99.5	57.85	66.7	1225.8	1292.5
Standard	104	62	59.62	81.7	1226.8	1308.5
Rapid	68	37.5	55.15	43.8	1224.4	1268.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1397.6	1382.7	1351.8	1200
2025-09-30	1367.9	1382.7	1284.1	1200
2025-09-01	1367.9	1382.7	1284.1	1200
2025-08-01	1363.9	1382.7	1256.5	1200
2025-07-01	1363.9	1382.7	1256.5	1200
2025-06-01	1370.8	1382.7	1252.8	1200
2025-05-01	1347.9	1346	1222.7	1200
2025-04-01	1404.4	1407	1222.7	1200
2025-03-01	1322.5	1340.7	1222.7	1200
2025-02-01	1299.9	1315.8	1222.7	1200
2025-01-01	1270.2	1275.4	1222.7	1200
2024-12-01	1285.2	1301.7	1222.7	1200
2024-11-01	1285.2	1301.7	1222.7	1200
2024-10-01	1284.2	1305.7	1202.9	1200
2024-09-01	1284.2	1305.7	1202.9	1200
2024-08-01	1282.9	1313.3	1202.9	1200
2024-07-01	1282.9	1313.3	1202.9	1200
2024-09-01	1282.9	1313.3	1202.9	1200
2024-05-01	1272	1309	1202.9	1200
2024-04-01	1272	1309	1202.9	1200
2024-03-01	1288.2	1324.5	1197.9	1200
2024-02-01	1301.1	1324.5	1192.9	1200
2024-01-01	1313.4	1324.5	1199.7	1200
2023-12-01	1313.4	1324.5	1199.7	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	Worcester Schools Knock-Out 2025 (U9)	2025-10-18	2025-10-18	Rapid	Cape Winelands (WCW)	6	6	5	Yes	Analysis
2	De Villiers PS 2025 (U12 Girls)	2025-08-16	2025-08-16	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Cape Winelands Queens 2025 (U9)	2025-06-21	2025-06-21	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U9 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
5	Brave Knights Rapid 2025 (U11)	2025-05-03	2025-05-03	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U10 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	2.5	Yes	Analysis
7	Cape Winelands Schools Prestige 2025 (U9 Girls)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	6	6	5.5	Yes	Analysis
8	Cape Winelands Schools - Trials 1 2025 (U9 Girls)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
9	Marie Delport Memorial 2025 (U10 Boys+Girls)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Worcester Schools Knock-Out 2025 (U9)	2025-10-18	2025-10-18	Rapid	Cape Winelands (WCW)	6	6	5	Yes	Analysis
2	De Villiers PS 2025 (U12 Girls)	2025-08-16	2025-08-16	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Cape Winelands Queens 2025 (U9)	2025-06-21	2025-06-21	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
4	Western Cape Schools Individual Championship 2025 (U9 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
5	Brave Knights Rapid 2025 (U11)	2025-05-03	2025-05-03	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
6	South African Junior Closed Chess Championships 2025 (U10 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	8	2.5	Yes	Analysis
7	Cape Winelands Schools Prestige 2025 (U9 Girls)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	6	6	5.5	Yes	Analysis
8	Cape Winelands Schools - Trials 1 2025 (U9 Girls)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
9	Marie Delport Memorial 2025 (U10 Boys+Girls)	2025-01-25	2025-01-26	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
10	Mzansi Interprovincial Youth Chess Championships 2024 (U10 Girls Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	6	2	Yes	Analysis
11	Worcester Knock-Out 2024 (U9 Girls)	2024-10-19	2024-10-19	Rapid	Cape Winelands (WCW)	6	5	3	Yes	Analysis
12	Strategema Chess October 2024 (U9)	2024-10-05	2024-10-05	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
13	De Villiers PS Tournament 2024 (U10)	2024-08-17	2024-08-17	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
14	Western Cape PS Individuals Championship 2024 (U9 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
15	Brave Knights 2024 (U9)	2024-03-16	2024-03-16	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
16	Cape Winelands Schools - Prestige 2024 (U9 Girls)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
17	Cape Winelands Schools - PS Trials 1 2024 (U9 Girls)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
18	Cape Winelands - Marie Delport Memorial 2024 (U10)	2024-01-27	2024-01-27	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
19	Ashton Skaakmat Rapid 2023 (U7)	2023-11-18	2023-11-18	Rapid	Cape Winelands (WCW)	6	5	2	Yes	Analysis
20	Robertson Chess Tournament Oct 2023 (U9)	2023-10-28	2023-10-28	Standard	Cape Winelands (WCW)	5	5	1.5	Yes	Analysis
21	Bonnievale Open Rapid 2023 (U8)	2023-10-21	2023-10-21	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
22	Western Cape PS Individuals 2023 (U7 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
23	Cape Winelands Schools Prestige 2023 (U7 Boys+Girls)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	4	4	Yes	Analysis
24	Langeberg Schools Chess Trials 2023 (U7 Boys+Girls)	2023-02-11	2023-02-11	Rapid	Cape Winelands (WCW)	5	4	3.5	Yes	Analysis
25	Cape Winelands Schools Chess - Trials 1 2023 (U7 Boys+Girls)	2023-02-18	2023-02-18	Standard	Cape Winelands (WCW)	5	5	4.5	Yes	Analysis
26	CW Grass Roots Tournament 2022 (U7 Boys+Girls)	2022-11-19	2022-11-19	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
27	Western Cape Top Schools 2022 (U7 Mix)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	6	4	2	Yes	Analysis
28	Cape Winelands Schools Top Schools 2022 (U7-U11 Mixed)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	6	5	1	Yes	Analysis
29	Western Cape Schools 2022 (U7 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
30	Strategema Chess Festival 2022 (U7+U9 Girls)	2022-05-14	2022-05-14	Rapid	Cape Winelands (WCW)	3	2	1	Yes	Analysis
31	Cape Winelands Schools 2022 (U7 Boys+Girls)	2022-03-12	2022-03-12	Standard	Cape Winelands (WCW)	7	6	3	Yes	Analysis
32	Lanfeberg Schools Chess Trials 2022 (U7+U9)	2022-02-26	2022-02-26	Rapid	Cape Winelands (WCW)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	17	Tournament CW Grass Roots Tournament 2022				Tournament Western Cape PS Individuals 2023
		date 2022-11-19	rnd 5	type Standard	result 1	date 2023-05-05	rnd 3	type Standard	result 1
		Opponent Willemse, N (Nieveah)				Opponent Hendricks, W (Willow)
2	8	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-03-08	rnd 6	type Standard	result 1
		Opponent Swanepoel, M (Mariaan)				Opponent Grovers, I (Isabella)
3	4	Tournament De Villiers PS 2025				Tournament Worcester Schools Knock-Out 2025
		date 2025-08-16	rnd 5	type Rapid	result 1	date 2025-10-18	rnd 3	type Rapid	result 1
		Opponent Du Toit, S (Shanika)				Opponent Edons, M (Mihandro)

#	Games	Start				End
1	13	Tournament CW Grass Roots Tournament 2022				Tournament Western Cape PS Individuals 2023
		date 2022-11-19	rnd 5	type Standard	result 1	date 2023-05-05	rnd 3	type Standard	result 1
		Opponent Willemse, N (Nieveah)				Opponent Hendricks, W (Willow)
2	8	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-03-08	rnd 6	type Standard	result 1
		Opponent Swanepoel, M (Mariaan)				Opponent Grovers, I (Isabella)
3	4	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 1	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Sgijimi, A (Asiphile)				Opponent Klopper, E (Elbe)

#	Games	Start				End
1	7	Tournament Strategema Chess Festival 2022				Tournament Bonnievale Open Rapid 2023
		date 2022-05-14	rnd 2	type Rapid	result 1	date 2023-10-21	rnd 2	type Rapid	result 1
		Opponent Davids, S (Stephanie)				Opponent Klopper, E (Elbe)
2	4	Tournament Cape Winelands Queens 2025				Tournament De Villiers PS 2025
		date 2025-06-21	rnd 4	type Rapid	result 1	date 2025-08-16	rnd 1	type Rapid	result 1
		Opponent Lambrechts, M (Mila)				Opponent Baadjies, Q (Qiana)
3	3	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 2	type Rapid	result 1	date 2024-02-10	rnd 4	type Rapid	result 1
		Opponent Mitchell, F (Falon)				Opponent Willemse, N (Nieveah)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Cape Winelands Schools Prestige 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-11	rnd 2	type Standard	result 1	date 2023-05-05	rnd 3	type Standard	result 1
		Opponent Barends, M (Matthew)				Opponent Hendricks, W (Willow)
2	5	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Swanepoel, M (Mariaan)				Opponent Swanepoel, M (Mariaan)
3	5	Tournament Langeberg Schools Chess Trials 2023				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2023-02-11	rnd 4	type Rapid	result 1	date 2023-02-18	rnd 4	type Standard	result 1
		Opponent Thorpe, H (Hadley)				Opponent Kleinbooi, R (Riley)

#	Games	Start				End
1	7	Tournament Cape Winelands Schools Prestige 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-11	rnd 2	type Standard	result 1	date 2023-05-05	rnd 3	type Standard	result 1
		Opponent Barends, M (Matthew)				Opponent Hendricks, W (Willow)
2	5	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Swanepoel, M (Mariaan)				Opponent Swanepoel, M (Mariaan)
3	5	Tournament CW Grass Roots Tournament 2022				Tournament Cape Winelands Schools Chess - Trials 1 2023
		date 2022-11-19	rnd 5	type Standard	result 1	date 2023-02-18	rnd 4	type Standard	result 1
		Opponent Willemse, N (Nieveah)				Opponent Kleinbooi, R (Riley)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 2	type Rapid	result 1	date 2024-02-10	rnd 4	type Rapid	result 1
		Opponent Mitchell, F (Falon)				Opponent Willemse, N (Nieveah)
2	3	Tournament Langeberg Schools Chess Trials 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-02-11	rnd 4	type Rapid	result 1	date 2023-10-21	rnd 2	type Rapid	result 1
		Opponent Thorpe, H (Hadley)				Opponent Klopper, E (Elbe)
3	3	Tournament Strategema Chess Festival 2022				Tournament Langeberg Schools Chess Trials 2023
		date 2022-05-14	rnd 2	type Rapid	result 1	date 2023-02-11	rnd 2	type Rapid	result 1
		Opponent Davids, S (Stephanie)				Opponent Kleinbooi, R (Riley)

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	Davids ,S (Stephanie)	7	5.5	242.9	4	4	425	3	1.5	0	0	0	0
1	Davids ,S (Stephanie)	7	1104.9	1347.7	4	1104.2	1529.9	3	1165.9	1104.9	0	0	0
2	Willemse ,N (Neveah)	6	5	283.3	4	4	425	2	1	0	0	0	0
2	Willemse ,N (Neveah)	6	1157.9	1441.2	4	1147.5	1582.9	2	1162.8	1157.9	0	0	0
3	Kleinbooi ,R (Riley)	6	4	141.7	3	3	425	3	1	-141.7	0	0	0
3	Kleinbooi ,R (Riley)	6	1170.1	1311.8	3	1130.4	1595.1	3	1174.3	1028.5	0	0	0
4	Du Toit ,S (Shanika)	5	1	-255	2	0	-425	3	1	-141.7	0	0	0
4	Du Toit ,S (Shanika)	5	1294.2	1039.2	2	1292.3	869.2	3	1275.2	1152.5	0	0	0
5	Van Zyl ,M (Maria Elizabeth)	4	3.5	318.8	3	2.5	283.3	1	1	425	0	0	0
5	Van Zyl ,M (Maria Elizabeth)	4	1141.4	1460.2	3	1150.4	1424.8	1	1211.2	1566.4	0	0	0
6	Da Silva ,N (Noah Clint)	4	0	-425	2	0	-425	2	0	-425	0	0	0
6	Da Silva ,N (Noah Clint)	4	1195.7	770.7	2	1188.7	770.7	2	1188.1	770.7	0	0	0
7	Edons ,M (Mihandro)	4	3	212.5	1	1	425	3	2	141.7	0	0	0
7	Edons ,M (Mihandro)	4	1255.1	1467.6	1	1158.8	1680.1	3	1289.9	1396.8	0	0	0
8	Van Wyk ,F (Faith)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
8	Van Wyk ,F (Faith)	3	1441.7	1158.3	3	1399.7	1158.3	0	0	0	0	0	0
9	Ramonyaluoe ,M (Madalitso)	3	0	-425	3	0	-425	0	0	0	0	0	0
9	Ramonyaluoe ,M (Madalitso)	3	1390.7	965.7	3	1372.4	965.7	0	0	0	0	0	0
10	Coetzee ,S (Sean)	3	3	425	3	3	425	0	0	0	0	0	0
10	Coetzee ,S (Sean)	3	1083.6	1508.6	3	1073.6	1508.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Williams, M (Mackenzy)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms