Chess South Africa
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Chess South Africa
Greeff, M (Mari)
Dob:
2014/03/28 (U12)
Gender:
Female
Chess SA id:
2140148829
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2024/05/05 (14 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
Raw rating
=Current rating,
Weighted rating (WR)
Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Curent Raw rating
1577.6
Curent Weighted rating
1439.9
Curent Weighted performance
1565.9
Current official/published rating (highest between Raw, WR and WP)
1577.6
Current floor (min rating allowed)
1092.2
Current highest rating achieved
1592.2
Current K-factor
32
Games played this month
15
Score (S)
11.0
Expected score (We)
10.92
Difference (S-We)
0.08
Current Raw change (no limits, including tournament time weight)
-1.0
Current min/max change allowed (with limits)
±96.8
Current Raw change used (final)
-1.0
Projected new Raw rating
1576.6
Projected new Weighed rating
1455.8
Projected new Weighted performance
1565.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1576.6
Projected effective change (new Official - current Official)
-1.0
Projected new highest rating
1592.2
Projected new floor
1092.2
Projected new K-facor
32
Raw rating
=Current rating,
Weighted rating (WR)
Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Curent Raw rating
1612.1
Curent Weighted rating
1439.5
Curent Weighted performance
1602.0
Current official/published rating (highest between Raw, WR and WP)
1612.1
Current floor (min rating allowed)
1130.5
Current highest rating achieved
1630.5
Current K-factor
28
Games played this month
15
Score (S)
11.0
Expected score (We)
11.95
Difference (S-We)
-0.95
Current Raw change (no limits, including tournament time weight)
-26.6
Current min/max change allowed (with limits)
±92.2
Current Raw change used (final)
-26.6
Projected new Raw rating
1585.5
Projected new Weighed rating
1456.1
Projected new Weighted performance
1602.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1602.0
Projected effective change (new Official - current Official)
-10.1
Projected new highest rating
1630.5
Projected new floor
1130.5
Projected new K-facor
28
Raw rating
=Current rating,
Weighted rating (WR)
Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Curent Raw rating
1278.4
Curent Weighted rating
1244.3
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1278.4
Current floor (min rating allowed)
778.4
Current highest rating achieved
1278.4
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±148.3
Current Raw change used (final)
0.0
Projected new Raw rating
1278.4
Projected new Weighed rating
1248.4
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1278.4
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1278.4
Projected new floor
778.4
Projected new K-facor
36
Raw rating
=Current rating,
Weighted rating (WR)
Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Curent Raw rating
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
778.4
Current highest rating achieved
1200.0
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1200.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1200.0
Projected new floor
778.4
Projected new K-facor
36
Tournaments
History
Tournament:
Western Cape PS Individuals Championship 2024 (U11 Girls)
Start:
2024/05/04
End:
2024/05/05
Host:
WCU
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
6
Games:
6
Score:
5.0
Main rating:
1577.6
Rating gain/loss:
17.3
Type rating:
1612.1
Rating gain/loss:
2.0
Analysis
Tournament:
South African Junior Closed Chess Championship 2024 (U10 Girls)
Start:
2024/04/27
End:
2024/05/01
Host:
GE
Type:
Standard
Time:
120
Time weight:
1.00
Rounds:
9
Games:
9
Score:
6.0
Main rating:
1577.6
Rating gain/loss:
-18.2
Type rating:
1612.1
Rating gain/loss:
-28.6
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
8
Western Cape PS Individuals Championship 2024 (U11 Girls)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
5.0
1577.6
1612.1
Analysis
7
South African Junior Closed Chess Championship 2024 (U10 Girls)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
6.0
1577.6
1612.1
Analysis
6
Eden Chess Trials 2 2024 (U12)
2024/04/13
2024/04/20
Eden (WEG)
Standard
60
0.83
10
10
6.5
1592.2
1630.5
Analysis
5
Eden School Chess Trials 1 2024 (U11 Girls)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
5.0
1502.1
1494.4
Analysis
4
George Schools Trials 3 2024 (U11 Girls)
2024/03/02
2024/03/02
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1502.1
1494.4
Analysis
3
Southern Knights Rapid 2024 (Junior)
2024/02/24
2024/02/24
Eden District (WEG)
Rapid
30
0.60
6
6
4.0
1414.4
1268.3
Analysis
2
George Schools Trials 2 2024 (U11 Girls)
2024/02/17
2024/02/17
Eden District (WEG)
Standard
60
0.83
5
5
5.0
1414.4
1386.9
Analysis
1
George Schools Trials 1 2024 (U11 Girls)
2024/02/03
2024/02/03
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1414.4
1386.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
23
Western Cape PS Individuals Championship 2024 (U11 Girls)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
5.0
1577.6
1612.1
Analysis
22
South African Junior Closed Chess Championship 2024 (U10 Girls)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
6.0
1577.6
1612.1
Analysis
21
Eden Chess Trials 2 2024 (U12)
2024/04/13
2024/04/20
Eden (WEG)
Standard
60
0.83
10
10
6.5
1592.2
1630.5
Analysis
20
Eden School Chess Trials 1 2024 (U11 Girls)
2024/03/09
2024/03/09
Eden District (WEG)
Standard
60
0.83
5
5
5.0
1502.1
1494.4
Analysis
19
George Schools Trials 3 2024 (U11 Girls)
2024/03/02
2024/03/02
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1502.1
1494.4
Analysis
18
Southern Knights Rapid 2024 (Junior)
2024/02/24
2024/02/24
Eden District (WEG)
Rapid
30
0.60
6
6
4.0
1414.4
1268.3
Analysis
17
George Schools Trials 2 2024 (U11 Girls)
2024/02/17
2024/02/17
Eden District (WEG)
Standard
60
0.83
5
5
5.0
1414.4
1386.9
Analysis
16
George Schools Trials 1 2024 (U11 Girls)
2024/02/03
2024/02/03
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1414.4
1386.9
Analysis
15
2023 Western Cape Rural Cup (U10)
2023/12/09
2023/12/10
Cape Winelands (WCW)
Standard
60
0.83
5
2
1.0
1455.6
1437.8
Analysis
14
Eden Open 2023 (C)
2023/12/02
2023/12/02
Eden District (WEG)
Standard
60
0.83
5
5
2.0
1455.6
1437.8
Analysis
13
Western Cape Club Championships 2023 (Tier 2)
2023/10/21
2023/10/22
Eden District (WEG)
Standard
65
0.85
5
5
3.0
1486.6
1469.8
Analysis
12
Mossel Bay Open 2023 (C)
2023/09/30
2023/09/30
Eden District (WEG)
Rapid
30
0.60
5
5
4.0
1456.8
1220.4
Analysis
11
Western Cape Top Schools 2023 (U9 Mixed)
2023/09/02
2023/09/03
Cape Winelands (WCW)
Standard
60
0.83
6
6
4.0
1456.8
1464.0
Analysis
10
Pacaltsdorp Chess Club Open 2023 (Development)
2023/08/26
2023/08/26
Eden District (WEG)
Rapid
30
0.60
6
5
3.0
1469.0
1200.0
Analysis
9
Eden Top Schools 2023 (U9 Mix)
2023/08/19
2023/08/19
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1469.0
1464.6
Analysis
8
Top Schools 2023 (U9)
2023/07/29
2023/07/29
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1459.2
1452.1
Analysis
7
George Chess Club Winter Open 2023 (D)
2023/05/20
2023/05/20
Eden District (WEG)
Standard
60
0.83
5
4
3.0
1408.3
1435.8
Analysis
6
Western Cape PS Individuals 2023 (U9 Girls)
2023/05/05
2023/05/06
Cape Town (WCT)
Standard
60
0.83
6
6
5.0
1408.3
1435.8
Analysis
5
Eden Trials 2+3 2023 (U10)
2023/04/15
2023/05/13
Eden District (WEG)
Standard
60
0.83
10
9
6.0
1408.3
1435.8
Analysis
4
Eden Trails 1 2023 (U9 Girls)
2023/03/11
2023/03/11
Eden District (WEG)
Standard
60
0.83
5
5
4.5
1387.7
1420.4
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
51
36
7
8
39.5
77.5
233.3
1360.2
1593.5
White
24
18
3
3
19.5
81.3
265.6
1353.4
1619.0
Black
27
18
4
5
20.0
74.1
204.6
1366.2
1570.8
Standard
All
45
32
7
6
35.5
78.9
245.6
1365.2
1610.7
White
21
16
3
2
17.5
83.3
283.3
1360.4
1643.7
Black
24
16
4
4
18.0
75.0
212.5
1369.4
1581.9
Rapid
All
6
4
0
2
4.0
66.7
141.7
1322.7
1464.4
White
3
2
0
1
2.0
66.7
141.7
1304.6
1446.3
Black
3
2
0
1
2.0
66.7
141.7
1340.8
1482.5
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
128
93
9
26
97.5
76.2
222.5
1296.7
1519.2
White
62
46
5
11
48.5
78.2
239.9
1290.3
1530.3
Black
66
47
4
15
49.0
74.2
206.1
1302.7
1508.7
Standard
All
112
82
9
21
86.5
77.2
231.5
1293.8
1525.3
White
54
41
5
8
43.5
80.6
259.7
1284.4
1544.1
Black
58
41
4
13
43.0
74.1
205.2
1302.6
1507.8
Rapid
All
16
11
0
5
11.0
68.8
159.4
1316.8
1476.2
White
8
5
0
3
5.0
62.5
106.3
1330.7
1437.0
Black
8
6
0
2
6.0
75.0
212.5
1302.9
1515.4
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
2140148827
Botha, J (Jaylie)
5
4.5
4
1
0
90.0
1327.7
340.0
1667.7
View list
2
1140144676
Mpuru, J (Jk)
5
0.0
0
0
5
0.0
1477.1
-425.0
1052.1
View list
3
2140148826
Beaunielle, C (Cathi)
3
3.0
3
0
0
100.0
1290.7
425.0
1715.7
View list
4
1130148062
Marner, B (Bryan Neil)
3
3.0
3
0
0
100.0
1442.3
425.0
1867.3
View list
5
2130136965
Pringle, K (Kirsten)
3
3.0
3
0
0
100.0
1443.6
425.0
1868.6
View list
6
2130136581
Brewis, S (Sienna)
3
2.0
2
0
1
66.7
1461.8
141.7
1603.5
View list
7
1110130128
Da Silva, D (Darren)
3
2.0
2
0
1
66.7
1460.5
141.7
1602.1
View list
8
1120118497
Sampson, E (Eejay)
3
0.0
0
0
3
0.0
1426.5
-425.0
1001.5
View list
9
2140149955
Barnard, M (Marizaan)
2
2.0
2
0
0
100.0
1458.3
425.0
1883.3
View list
10
1140144672
Brewis, F (Fox)
2
2.0
2
0
0
100.0
1438.7
425.0
1863.7
View list
11
2150156961
Coleman, G (Gabriella)
2
2.0
2
0
0
100.0
1336.0
425.0
1761.0
View list
12
2130147007
Douglas, K (Keyla)
2
2.0
2
0
0
100.0
1503.3
425.0
1928.3
View list
13
2140149834
Lambrechts, M (Madison)
2
2.0
2
0
0
100.0
1492.9
425.0
1917.9
View list
14
2140148833
Mouton, C (Carli)
2
2.0
2
0
0
100.0
1433.8
425.0
1858.8
View list
15
2150142295
Stewart, C (Chante)
2
2.0
2
0
0
100.0
1284.3
425.0
1709.3
View list
16
2140148836
Van Den Heever, C (Christelle)
2
2.0
2
0
0
100.0
1242.2
425.0
1667.2
View list
17
2140139710
Du Preez, A (Anneke)
2
1.5
1
1
0
75.0
1492.9
212.5
1705.4
View list
18
2140149833
Cyster, R (Renesme)
2
1.0
1
0
1
50.0
1516.6
0.0
1516.6
View list
19
2110136943
Wanie, A (Amy Lee)
2
1.0
1
0
1
50.0
1477.8
0.0
1477.8
View list
20
2140139124
Claassen, J (Jeneva)
1
1.0
1
0
0
100.0
1408.3
425.0
1833.3
View list