Player Page

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: 2024/10/12 (40 days ago)
Ratings
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
Current Raw rating1490.5
Current Weighted rating1487.4
Current Weighted performance1427.3
Current official/published rating (highest between Raw, WR and WP)1490.5
Current highest rating achieved1592.2
Current floor (min rating allowed)1092.2
Current K-factor32
Games played this month0
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)±109.6
Current Raw change used (final)0.0
Projected new Raw rating1490.5
Projected new Weighed rating1371.0
Projected new Weighted performance1427.3
Projected new final Raw rating (if new WP > new Raw)1490.5
Projected new highest rating1592.2
Projected new floor1092.2
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1490.5
Projected effective change (new Official - current Official)=0.0
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
Current Raw rating1497.0
Current Weighted rating1489.9
Current Weighted performance1427.3
Current official/published rating (highest between Raw, WR and WP)1497.0
Current highest rating achieved1630.5
Current floor (min rating allowed)1130.5
Current K-factor28
Games played this month0
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)±108.6
Current Raw change used (final)0.0
Projected new Raw rating1497.0
Projected new Weighed rating1373.4
Projected new Weighted performance1427.3
Projected new final Raw rating (if new WP > new Raw)1497.0
Projected new highest rating1630.5
Projected new floor1130.5
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1497.0
Projected effective change (new Official - current Official)=0.0
s
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
Current Raw rating1278.4
Current Weighted rating1264.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1278.4
Current highest rating achieved1278.4
Current floor (min rating allowed)778.4
Current K-factor36
Games played this month0
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 rating1278.4
Projected new Weighed rating1164.9
Projected new Weighted performance1039.9
Projected new final Raw rating (if new WP > new Raw)1278.4
Projected new highest rating1278.4
Projected new floor778.4
Projected new K-facor36
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
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
Current Raw rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
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 rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
13 Eden Chess Union League 2024 (1st Division) 2024/10/12 2024/10/12 Eden (WEG) Standard 60 0.83 5 5 2.0 1516.0 1524.2 Analysis
12 Western Cape Top Schools Championship 2024 (U11 Girls) 2024/08/30 2024/09/01 Eden (WEG) Standard 60 0.83 5 5 4.0 1496.1 1504.3 Analysis
11 Eden Top Schools 2024 (U11 Girls) 2024/08/17 2024/08/17 Eden (WEG) Standard 60 0.83 5 4 4.0 1469.3 1478.3 Analysis
10 George Primary Top Schools 2024 (U11) 2024/07/20 2024/07/20 Eden (WEG) Standard 60 0.83 5 4 0.5 1502.8 1515.8 Analysis
9 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 4.5 1581.8 1585.5 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
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
28 Eden Chess Union League 2024 (1st Division) 2024/10/12 2024/10/12 Eden (WEG) Standard 60 0.83 5 5 2.0 1516.0 1524.2 Analysis
27 Western Cape Top Schools Championship 2024 (U11 Girls) 2024/08/30 2024/09/01 Eden (WEG) Standard 60 0.83 5 5 4.0 1496.1 1504.3 Analysis
26 Eden Top Schools 2024 (U11 Girls) 2024/08/17 2024/08/17 Eden (WEG) Standard 60 0.83 5 4 4.0 1469.3 1478.3 Analysis
25 George Primary Top Schools 2024 (U11) 2024/07/20 2024/07/20 Eden (WEG) Standard 60 0.83 5 4 0.5 1502.8 1515.8 Analysis
24 2024 African Youth Chess Championship 2024/06/16 2024/06/22 South Africa (RSA) Standard 120 1.00 9 9 4.5 1581.8 1585.5 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
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 78 49 11 18 54.5 69.9 168.9 1365.0 1533.9
White 36 22 5 9 24.5 68.1 153.5 1384.9 1538.4
Black 42 27 6 9 30.0 71.4 182.1 1348.0 1530.1
Standard All 72 45 11 16 50.5 70.1 171.2 1368.6 1539.7
White 33 20 5 8 22.5 68.2 154.5 1392.2 1546.8
Black 39 25 6 8 28.0 71.8 185.3 1348.5 1533.8
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 155 106 13 36 112.5 72.6 191.9 1310.2 1502.1
White 74 50 7 17 53.5 72.3 189.5 1315.9 1505.4
Black 81 56 6 19 59.0 72.8 194.1 1305.0 1499.1
Standard All 139 95 13 31 101.5 73.0 195.7 1309.4 1505.1
White 66 45 7 14 48.5 73.5 199.6 1314.1 1513.7
Black 73 50 6 17 53.0 72.6 192.1 1305.2 1497.3
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 idNameGamesScoreWinsDrawsLosses%AorDpPerformView
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 1130148062 Marner, B (Bryan Neil) 4 3.0 3 0 1 75.0 1460.7 212.5 1673.2 View list
4 2130136581 Brewis, S (Sienna) 4 2.0 2 0 2 50.0 1472.1 0.0 1472.1 View list
5 2140148826 Beaunielle, C (Cathi) 3 3.0 3 0 0 100.0 1290.7 425.0 1715.7 View list
6 2130136965 Pringle, K (Kirsten) 3 3.0 3 0 0 100.0 1443.6 425.0 1868.6 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 1140144672 Brewis, F (Fox) 2 2.0 2 0 0 100.0 1438.7 425.0 1863.7 View list
10 2140149955 Barnard, M (Marizaan) 2 2.0 2 0 0 100.0 1458.3 425.0 1883.3 View list
11 2130136579 Barkhuysen, A (Ankia) 2 2.0 2 0 0 100.0 1482.7 425.0 1907.7 View list
12 2150156961 Coleman, G (Gabriella) 2 2.0 2 0 0 100.0 1336.0 425.0 1761.0 View list
13 2130147007 Douglas, K (Keyla) 2 2.0 2 0 0 100.0 1503.3 425.0 1928.3 View list
14 2140149834 Lambrechts, M (Madison) 2 2.0 2 0 0 100.0 1492.9 425.0 1917.9 View list
15 2140192894 Magomarele, T (Thato) 2 2.0 2 0 0 100.0 1509.0 425.0 1934.0 View list
16 2140148833 Mouton, C (Carli) 2 2.0 2 0 0 100.0 1433.8 425.0 1858.8 View list
17 2150142295 Stewart, C (Chante) 2 2.0 2 0 0 100.0 1284.3 425.0 1709.3 View list
18 2130145239 Taute, W (Willene) 2 2.0 2 0 0 100.0 1485.7 425.0 1910.7 View list
19 2140148836 Van Den Heever, C (Christelle) 2 2.0 2 0 0 100.0 1242.2 425.0 1667.2 View list
20 2140139710 Du Preez, A (Anneke) 2 1.5 1 1 0 75.0 1492.9 212.5 1705.4 View list