Chess South Africa Ratings Database

PLAYER PAGE

Personal

Arendse, M (Michaely)

Chess SA id

2100110760

FIDE id

Date of birth

2010-04-23 (U16)

Gender

Female

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1505	1462.8	1421.5	1200
Raw rating	1505	1462.8	1421.5	1200
Weighted rating	1488.4	1445.3	1403.3	1200
Weighted performance	1308.5	1211.3	1158.8	0
Floor	1005	962.8	921.5	700
K-factor	32	32	32	36
Min/Max rating change allowed	107.4	114	120.9	165.8
Highest rating	1535.9 2023-05-01	1462.8 2025-04-01	1467 2020-01-01	1200 2018-10-01
Highest raw rating	1505 2025-04-01	1462.8 2025-04-01	1421.5 2025-03-01	1200 2024-03-01
Highest weighted rating	1485.2 2025-08-01	1442 2025-08-01	1397.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1535.9 2023-05-01	1453.7 2023-05-01	1467 2020-01-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1505	1462.8	1421.5	1200
Analysis
Rating	1505	1462.8	1421.5	1200
Raw rating	1505	1462.8	1421.5	1200
Weighted rating	1488.4	1445.3	1403.3
Weighted performance	1308.5	1211.3	1158.8
K-factor	32	32	32	36
Floor	1005	962.8	921.5	700
Max/Min rating change allowed	107.4	114	120.9	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	1505	1462.8	1421.5	1200
New weighted rating	1490	1446.9	1405.9	1200
New weighted performance	1308	1210.8	1158.3	0
Temp new rating	1505	1462.8	1421.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1505	1462.8	1421.5	1200
New K-factor	32	32	32	36
New floor	1005	962.8	921.5	700

Item	Main	Standard	Rapid
	0	0	0
	11	5	6
	11	6	5
	22	11	11
	11	11	0
	0	0	0
History	117	90	27

Games since
	Main 22	Standard 11		Rapid 11		Blitz 0
Gender	Female
Age group	U16
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 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	11	9	81.82	270.5	1298.7	1569.1
Standard	5	4	80	255	1359.6	1614.6
Rapid	6	5	83.33	283.3	1247.9	1531.2
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	117	79.5	67.95	152.6	1239.9	1392.4
Standard	90	58	64.44	122.8	1241.7	1364.5
Rapid	27	21.5	79.63	251.9	1233.7	1485.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1505	1462.8	1421.5	1200
2025-09-01	1505	1462.8	1421.5	1200
2025-08-01	1505	1462.8	1421.5	1200
2025-07-01	1505	1462.8	1421.5	1200
2025-06-01	1505	1462.8	1421.5	1200
2025-05-01	1505	1462.8	1421.5	1200
2025-04-01	1505	1462.8	1421.5	1200
2025-03-01	1483.2	1433.3	1421.5	1200
2025-02-01	1475.2	1432.9	1385.1	1200
2025-01-01	1466.7	1422.6	1385.1	1200
2024-12-01	1466.7	1422.6	1385.1	1200
2024-11-01	1466.7	1422.6	1385.1	1200
2024-10-01	1466.7	1422.6	1385.1	1200
2024-09-01	1466.7	1422.6	1385.1	1200
2024-08-01	1466.7	1422.6	1385.1	1200
2024-07-01	1466.7	1422.6	1385.1	1200
2024-06-01	1466.7	1422.6	1385.1	1200
2024-08-01	1466.7	1422.6	1385.1	1200
2024-04-01	1466.7	1422.6	1385.1	1200
2024-03-01	1502.8	1458.4	1385.1	1200
2024-02-01	1496	1458.4	1333.6	1200
2024-01-01	1496	1458.4	1333.6	1200
2023-12-01	1496	1458.4	1333.6	1200
2023-11-01	1496	1458.4	1333.6	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	Western Cape Schools Individual Championship 2025 (U15 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	0	0	No	Analysis
2	Overberg Schools - HS Closed 2025 (U15 Girls)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
3	Overberg Schools - HS Trials 2025 (U15 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools Individual Championship 2025 (U15 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	0	0	No	Analysis
2	Overberg Schools - HS Closed 2025 (U15 Girls)	2025-03-22	2025-03-22	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
3	Overberg Schools - HS Trials 2025 (U15 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
4	Western Cape HS Individuals Championship 2024 (U15 Girls)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	3	Yes	Analysis
5	Overberg High Schools Trails 2024 (U15 Girls)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	0	0	No	Analysis
6	Overberg High Schools Trails 2024 (U15)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
7	Western Cape PS Individuals 2023 (U13 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
8	Overberg School Chess Closed Tournament 2023 (U13 Girls)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
9	Overberg Primary School Trials (Region 2)	2023-02-24	2023-03-10	Rapid	Overberg (WOS)	6	6	4.5	Yes	Analysis
10	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
11	Western Cape Schools 2022 (U13 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
12	Overberg Primary Schools Closed 2022 (U13 Girls)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
13	Overberg Closed 2020 (U11 Girls)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
14	OCF Chess Tournament 2 2020 (U12)	2020-02-01	2020-02-01	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
15	OCF Open 2020 (U8+U10)	2020-01-25	2020-01-25	Rapid	Overberg (WOS)	5	5	4	Yes	Analysis
16	2019 South African Junior Team Championships (U10C)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
17	Spring Open 2019 (U10)	2019-09-14	2019-09-14	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
18	Western Cape Top Schools 2019 (U9 Girls)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	4	4	Yes	Analysis
19	Overberg Top Schools 2019 (U9)	2019-07-20	2019-07-20	Standard	Overberg (WOS)	3	2	0	Yes	Analysis
20	South African Schools Individuals Chess Championships 2019 (U11 Girls)	2019-06-18	2019-06-21	Standard	Frances Baard (NCF)	7	7	3	Yes	Analysis
21	Western Cape Schools Individuals 2019 (U9 Girls)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	5	Yes	Analysis
22	Trial 2 Teddy/Toy Tournament 2019 (U8+U10)	2019-04-06	2019-04-06	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
23	Overberg School Chess Close Champs 2019 (U9 Girls)	2019-03-08	2019-03-09	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
24	Overberg First Trial 2019 (U8+U10)	2019-02-23	2019-02-23	Standard	Overberg (WOS)	5	5	2	Yes	Analysis

#	Games	Start				End
1	7	Tournament Western Cape PS Individuals 2023				Tournament Overberg High Schools Trails 2024
		date 2023-05-05	rnd 4	type Standard	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent April, T (Tamlin)				Opponent Muller, C (Christiaan)
2	7	Tournament Overberg School Chess Closed Tournament 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-05-05	rnd 2	type Standard	result 1
		Opponent Van Der Linde, L (Luandi)				Opponent Van Der Linde, L (Luandi)
3	7	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Primary School Trials
		date 2023-02-11	rnd 4	type Rapid	result 1	date 2023-03-10	rnd 5	type Rapid	result 1
		Opponent Lotter, M (Michael)				Opponent Magida, S (Sinawo)

#	Games	Start				End
1	8	Tournament Western Cape Schools 2022				Tournament Western Cape PS Individuals 2023
		date 2022-05-29	rnd 6	type Standard	result 1	date 2023-05-05	rnd 2	type Standard	result 1
		Opponent Van Zyl, C (Cornelia Aletta)				Opponent Van Der Linde, L (Luandi)
2	6	Tournament Overberg Primary Schools Closed 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 2	type Standard	result 1	date 2022-05-28	rnd 2	type Standard	result 1
		Opponent Uys, R (Riane)				Opponent Pienaar, F (Francisca)
3	6	Tournament Western Cape Top Schools 2019				Tournament Spring Open 2019
		date 2019-08-31	rnd 1	type Standard	result 1	date 2019-09-14	rnd 2	type Standard	result 1
		Opponent Joseph, C (Chesnay)				Opponent Johnson, A (Annabelle)

#	Games	Start				End
1	7	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Primary School Trials
		date 2023-02-11	rnd 4	type Rapid	result 1	date 2023-03-10	rnd 5	type Rapid	result 1
		Opponent Lotter, M (Michael)				Opponent Magida, S (Sinawo)
2	4	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 1	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Vigaro, L (Luciano)				Opponent Muller, C (Christiaan)
3	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent D`Ambrosio, D (Djuna)				Opponent Lusawana, A (Asonele)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Western Cape PS Individuals 2023				Tournament Overberg High Schools Trails 2024
		date 2023-05-05	rnd 4	type Standard	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent April, T (Tamlin)				Opponent Muller, C (Christiaan)
2	7	Tournament Overberg School Chess Closed Tournament 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-05-05	rnd 2	type Standard	result 1
		Opponent Van Der Linde, L (Luandi)				Opponent Van Der Linde, L (Luandi)
3	6	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Closed 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent D`Ambrosio, D (Djuna)				Opponent Jara, I (Iviwe)

#	Games	Start				End
1	8	Tournament Western Cape Schools 2022				Tournament Western Cape PS Individuals 2023
		date 2022-05-29	rnd 6	type Standard	result 1	date 2023-05-05	rnd 2	type Standard	result 1
		Opponent Van Zyl, C (Cornelia Aletta)				Opponent Van Der Linde, L (Luandi)
2	6	Tournament Overberg Primary Schools Closed 2022				Tournament Western Cape Schools 2022
		date 2022-03-12	rnd 2	type Standard	result 1	date 2022-05-28	rnd 2	type Standard	result 1
		Opponent Uys, R (Riane)				Opponent Pienaar, F (Francisca)
3	6	Tournament Western Cape Top Schools 2019				Tournament Spring Open 2019
		date 2019-08-31	rnd 1	type Standard	result 1	date 2019-09-14	rnd 2	type Standard	result 1
		Opponent Joseph, C (Chesnay)				Opponent Johnson, A (Annabelle)

#	Games	Start				End
1	4	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 1	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Vigaro, L (Luciano)				Opponent Muller, C (Christiaan)
2	4	Tournament Overberg Primary School Trials				Tournament Overberg Primary School Trials
		date 2023-02-24	rnd 2	type Rapid	result 1	date 2023-03-10	rnd 5	type Rapid	result 1
		Opponent Badenhorst, G (Gabrielle)				Opponent Magida, S (Sinawo)
3	3	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 4	type Rapid	result 1	date 2025-02-22	rnd 6	type Rapid	result 1
		Opponent D`Ambrosio, D (Djuna)				Opponent Lusawana, A (Asonele)

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	Magida ,S (Sinawo)	5	3	85	4	2	0	1	1	425	0	0	0
1	Magida ,S (Sinawo)	5	1213	1298	4	1160	1213	1	1271.2	1638	0	0	0
2	Linde ,M (Morgan)	5	1.5	-170	4	1.5	-106.2	1	0	-425	0	0	0
2	Linde ,M (Morgan)	5	1232.2	1062.2	4	1172.7	1126	1	1382.6	807.2	0	0	0
3	Opperman ,C (Connor)	5	0	-425	3	0	-425	2	0	-425	0	0	0
3	Opperman ,C (Connor)	5	1410.8	985.8	3	1326.7	985.8	2	1434.9	985.8	0	0	0
4	Mackenzie ,T (Tayden)	4	0	-425	4	0	-425	0	0	0	0	0	0
4	Mackenzie ,T (Tayden)	4	1327.1	902.1	4	1317.2	902.1	0	0	0	0	0	0
5	Mbuli ,A (Anelisa)	4	4	425	3	3	425	1	1	425	0	0	0
5	Mbuli ,A (Anelisa)	4	1235.9	1660.9	3	1206.3	1660.9	1	1222.8	1660.9	0	0	0
6	Hendricks ,L (Lakeisha)	3	3	425	2	2	425	1	1	425	0	0	0
6	Hendricks ,L (Lakeisha)	3	1164	1589	2	1139	1589	1	1200	1589	0	0	0
7	Lusawana ,A (Asonele)	3	3	425	2	2	425	1	1	425	0	0	0
7	Lusawana ,A (Asonele)	3	1451.8	1876.8	2	1444.5	1876.8	1	1371.3	1876.8	0	0	0
8	Van Der Linde ,L (Luandi)	2	2	425	2	2	425	0	0	0	0	0	0
8	Van Der Linde ,L (Luandi)	2	1224.3	1649.3	2	1216.8	1649.3	0	0	0	0	0	0
9	Segelaar ,R (Revean)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Segelaar ,R (Revean)	2	1422.4	997.4	2	1391.1	997.4	0	0	0	0	0	0
10	Leenderts ,S (Shanique)	2	2	425	2	2	425	0	0	0	0	0	0
10	Leenderts ,S (Shanique)	2	1192.4	1617.4	2	1197.9	1617.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Arendse, M (Michaely)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms