Chess South Africa Ratings Database

PLAYER PAGE

Personal

Grassini, M (Mieka)

Chess SA id

2110147384

FIDE id

Date of birth

2011-02-18 (U16)

Gender

Female

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-01-25

Personal details last changed

2025-01-31

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1228.2	1218.5	1217.6	1200
Raw rating	1228.2	1218.5	1217.6	1200
Weighted rating	1222.1	1211.1	1217.6	1200
Weighted performance	0	0	0	0
Floor	728.2	718.5	717.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	159.3	161.5	161.7	165.8
Highest rating	1244.2 2022-10-01	1218.5 2025-02-01	1291.7 2022-10-01	1200 2018-10-01
Highest raw rating	1228.2 2025-02-01	1218.5 2025-02-01	1217.6 2024-02-01	1200 2024-02-01
Highest weighted rating	1220.5 2025-08-01	1209.1 2025-08-01	1217.6 2025-02-01	1200 2018-10-01
Highest weighted performance	1244.2 2022-10-01	1200 2024-02-01	1291.7 2022-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1228.2	1218.5	1217.6	1200
Analysis
Rating	1228.2	1218.5	1217.6	1200
Raw rating	1228.2	1218.5	1217.6	1200
Weighted rating	1222.1	1211.1	1217.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	728.2	718.5	717.6	700
Max/Min rating change allowed	159.3	161.5	161.7	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	1228.2	1218.5	1217.6	1200
New weighted rating	1222.9	1212	1217.6	1200
New weighted performance	0	0	0	0
Temp new rating	1228.2	1218.5	1217.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1228.2	1218.5	1217.6	1200
New K-factor	36	36	36	36
New floor	728.2	718.5	717.6	700

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	0	0	0
	0	0	0
	5	0	5
	0	0	0
History	10	5	5

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Female
Age group	U16
Region	Eden (WEG)
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	5	3	60	85	1221.9	1306.9
Standard	5	3	60	85	1221.9	1306.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	6	60	85	1218.6	1303.6
Standard	5	3	60	85	1221.9	1306.9
Rapid	5	3	60	85	1215.3	1300.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1228.2	1218.5	1217.6	1200
2025-09-01	1228.2	1218.5	1217.6	1200
2025-08-01	1228.2	1218.5	1217.6	1200
2025-07-01	1228.2	1218.5	1217.6	1200
2025-06-01	1228.2	1218.5	1217.6	1200
2025-05-01	1228.2	1218.5	1217.6	1200
2025-04-01	1228.2	1218.5	1217.6	1200
2025-03-01	1228.2	1218.5	1217.6	1200
2025-02-01	1228.2	1218.5	1217.6	1200
2025-01-01	1213	1200	1217.6	1200
2024-12-01	1213	1200	1217.6	1200
2024-11-01	1213	1200	1217.6	1200
2024-10-01	1213	1200	1217.6	1200
2024-09-01	1213	1200	1217.6	1200
2024-08-01	1213	1200	1217.6	1200
2024-07-01	1213	1200	1217.6	1200
2024-06-01	1213	1200	1217.6	1200
2024-08-01	1213	1200	1217.6	1200
2024-04-01	1213	1200	1217.6	1200
2024-03-01	1213	1200	1217.6	1200
2024-02-01	1213	1200	1217.6	1200
2024-01-01	1213	1200	1217.6	1200
2023-12-01	1213	1200	1217.6	1200
2023-11-01	1213	1200	1217.6	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	Hessequa Skole Skaak 2025 (O15 Dogters)	2025-01-25	2025-01-25	Standard	Eden (WEG)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Hessequa Skole Skaak 2025 (O15 Dogters)	2025-01-25	2025-01-25	Standard	Eden (WEG)	5	5	3	Yes	Analysis
2	Hessequa Ontwikkeling 2022 (Laerskole)	2022-10-22	2022-10-22	Rapid	Eden (WEG)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Hessequa Ontwikkeling 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-10-22	rnd 2	type Rapid	result 1	date 2022-10-22	rnd 5	type Rapid	result 1
		Opponent Van Zyl, D (Derik)				Opponent Von Moldendorff, A (Andre)
2	3	Tournament Hessequa Skole Skaak 2025				Tournament Hessequa Skole Skaak 2025
		date 2025-01-25	rnd 3	type Standard	result 1	date 2025-01-25	rnd 5	type Standard	result 1
		Opponent Basson, K (Karliayah)				Opponent Saayman, M (Miljenay)

#	Games	Start				End
1	3	Tournament Hessequa Skole Skaak 2025				Tournament Hessequa Skole Skaak 2025
		date 2025-01-25	rnd 3	type Standard	result 1	date 2025-01-25	rnd 5	type Standard	result 1
		Opponent Basson, K (Karliayah)				Opponent Saayman, M (Miljenay)

#	Games	Start				End
1	4	Tournament Hessequa Ontwikkeling 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-10-22	rnd 2	type Rapid	result 1	date 2022-10-22	rnd 5	type Rapid	result 1
		Opponent Van Zyl, D (Derik)				Opponent Von Moldendorff, A (Andre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Hessequa Skole Skaak 2025				Tournament Hessequa Skole Skaak 2025
		date 2025-01-25	rnd 3	type Standard	result 1	date 2025-01-25	rnd 5	type Standard	result 1
		Opponent Basson, K (Karliayah)				Opponent Saayman, M (Miljenay)
2	1	Tournament Hessequa Ontwikkeling 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-10-22	rnd 5	type Rapid	result 1	date 2022-10-22	rnd 5	type Rapid	result 1
		Opponent Von Moldendorff, A (Andre)				Opponent Von Moldendorff, A (Andre)
3	1	Tournament Hessequa Ontwikkeling 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-10-22	rnd 2	type Rapid	result 1	date 2022-10-22	rnd 2	type Rapid	result 1
		Opponent Van Zyl, D (Derik)				Opponent Van Zyl, D (Derik)

#	Games	Start				End
1	3	Tournament Hessequa Skole Skaak 2025				Tournament Hessequa Skole Skaak 2025
		date 2025-01-25	rnd 3	type Standard	result 1	date 2025-01-25	rnd 5	type Standard	result 1
		Opponent Basson, K (Karliayah)				Opponent Saayman, M (Miljenay)

#	Games	Start				End
1	1	Tournament Hessequa Ontwikkeling 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-10-22	rnd 5	type Rapid	result 1	date 2022-10-22	rnd 5	type Rapid	result 1
		Opponent Von Moldendorff, A (Andre)				Opponent Von Moldendorff, A (Andre)
2	1	Tournament Hessequa Ontwikkeling 2022				Tournament Hessequa Ontwikkeling 2022
		date 2022-10-22	rnd 2	type Rapid	result 1	date 2022-10-22	rnd 2	type Rapid	result 1
		Opponent Van Zyl, D (Derik)				Opponent Van Zyl, D (Derik)

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	Pietersen ,C (Chandre)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Pietersen ,C (Chandre)	1	1187.2	762.2	1	1185.5	762.2	0	0	0	0	0	0
2	Taute ,E (Edwina)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Taute ,E (Edwina)	1	1333.1	908.1	1	1315.7	908.1	0	0	0	0	0	0
3	Saayman ,M (Miljenay)	1	1	425	1	1	425	0	0	0	0	0	0
3	Saayman ,M (Miljenay)	1	1297.8	1722.8	1	1273.3	1722.8	0	0	0	0	0	0
4	Brown ,L (Lamees)	1	1	425	1	1	425	0	0	0	0	0	0
4	Brown ,L (Lamees)	1	1245.1	1670.1	1	1240.9	1670.1	0	0	0	0	0	0
5	Basson ,K (Karliayah)	1	1	425	1	1	425	0	0	0	0	0	0
5	Basson ,K (Karliayah)	1	1046.1	1471.1	1	1032	1471.1	0	0	0	0	0	0
6	Van Zyl ,D (Derik)	1	1	425	0	0	0	1	1	425	0	0	0
6	Van Zyl ,D (Derik)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
7	Von Coller ,M (Max)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
7	Von Coller ,M (Max)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
8	Moses ,J (Jay-Leigh)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Moses ,J (Jay-Leigh)	1	1349.3	924.3	0	0	0	1	1211.2	924.3	0	0	0
9	Von Moldendorff ,A (Andre)	1	1	425	0	0	0	1	1	425	0	0	0
9	Von Moldendorff ,A (Andre)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Johnson ,A (Amber)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
10	Johnson ,A (Amber)	1	1127.2	1127.2	0	0	0	1	1176.4	1127.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Grassini, M (Mieka)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms