Surname or Chess SA id..
Chess SA Region AOC

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Mari Greeff

2140148829
Eden (WEG)
Personal
Main rating
Rating 1633
K-factor 28
Floor 1273.1
Highest 1773.1 (2025-08-01)
Min/Max +/- allowed 73
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1601
Final +/- 0
New Rating
()
Rating 1633
K-factor 28
Floor 1273.1
Highest 1773.1 (2025-08-01)
Min/Max +/- allowed 73.3
Standard rating
Rating 1657.2
K-factor 28
Floor 1263.9
Highest 1763.9 (2025-08-01)
Min/Max +/- allowed 74.3
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1651.1
Final +/- 0
New Rating
()
Rating 1657.2
K-factor 28
Floor 1263.9
Highest 1763.9 (2025-08-01)
Min/Max +/- allowed 74.3
Rapid rating
Rating 1391.9
K-factor 32
Floor 929.7
Highest 1429.7 (2025-06-01)
Min/Max +/- allowed 119.5
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1375.8
Final +/- 0
New Rating
()
Rating 1391.9
K-factor 32
Floor 929.7
Highest 1429.7 (2025-06-01)
Min/Max +/- allowed 119.5
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 2026 WCSC PS Individual Championship (U13 Girls) Standard 2026-05-16 2026-05-17 Overberg (WOS) 6 1630.7 6 5.5 1800.8 28.2 Details
2 Moja Chess Extravaganza 2026 (Ladies) Classical 2026-04-25 2026-04-30 Cape Town (WCT) 9 1630.7 9 4 1547.5 -25.9 Details
3 Eden Rapid Championship 2026 (B) Rapid 2026-04-18 2026-04-18 Eden (WEG) 6 1624.2 5 3 1413.6 -21.2 Details
4 South African Junior Closed Chess Championship 2026 (U12 Girls) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1624.2 9 6 1712.9 27.6 Details
5 Eden Schools Trials 1 2026 (U13 Girls) Standard 2026-03-14 2026-03-14 Eden (WEG) 5 1697.5 5 4 1651.6 -4 Details
6 2026 South African Closed Chess Championships (Woman ) Classical 2026-02-21 2026-03-01 Johannesburg Metro (GJM) 11 1697.5 11 1 1470 -84.1 Details
7 George Trials 2 2026 (U13 Girls) Standard 2026-02-14 2026-02-14 Eden (WEG) 5 1676.9 5 5 1788.6 12.3 Details
8 George Trials 1 2026 (U13 Girls) Standard 2026-01-31 2026-01-31 Eden (WEG) 5 1676.9 4 3.5 1708.6 1.5 Details
9 Laerskool George Suid 2025 (Ope) Rapid 2025-10-25 2025-10-25 Eden (WEG) 5 1697.7 4 2 1332.1 -14.9 Details
10 UCT Open Chess Championship 2025 (U12) Rapid 2025-10-11 2025-10-11 Cape Town (WCT) 6 1731.4 6 2.5 1408.4 -24 Details
11 Western Cape Schools - Top Schools 2025 (U13) Standard 2025-09-06 2025-09-07 Overberg (WOS) 6 1755.9 6 4 1568.3 -17.6 Details
12 Eden Top Schools 2025 (U13) Standard 2025-08-16 2025-08-16 Eden (WEG) 5 1773.1 5 4 1546.1 -12.3 Details
13 George Top Schools 2025 (U13) Standard 2025-07-26 2025-07-26 Eden (WEG) 5 1761.1 5 5 1789 8.6 Details
14 2025 WC Rural Cup (U12) Standard 2025-06-14 2025-06-15 Eden (WEG) 6 1744.6 6 5.5 1826 8.5 Details
15 Western Cape Schools Individual Championship 2025 (U11 Girls) Standard 2025-05-17 2025-05-18 Cape Winelands (WCW) 6 1694.2 6 6 1819.1 15.3 Details
16 Southern Knights Rapid 2025 (C) Rapid 2025-05-03 2025-05-03 Eden (WEG) 7 1694.2 7 7 1864.1 13.3 Details
17 Eden Chess Trials 2 2025 (U12) Standard 2025-03-15 2025-04-12 Eden (WEG) 10 1661.4 10 8 1680.7 5.6 Details
18 South African Junior Closed Chess Championships 2025 (U12 Girls) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1661.4 9 7 1746.3 17.4 Details
19 Eden Schools Chess Trials 1 2025 (U11 Girls) Standard 2025-03-08 2025-03-08 Eden (WEG) 5 1550.1 5 5 1776.1 21.6 Details
20 George Schools Chess Trials 3 2025 (U11 Girls) Standard 2025-03-01 2025-03-01 Eden (WEG) 5 1550.1 5 5 1759.5 19.9 Details
21 Eden Rapid 2025 (B) Rapid 2025-02-23 2025-02-23 Eden (WEG) 6 1490.3 6 4.5 1618 12 Details
22 Loerie Skaaktoernooi 2025 Rapid 2025-02-22 2025-02-22 Eden (WEG) 5 1490.3 5 3 1536.8 2.2 Details
23 George Schools Chess Trials 2 2025 (U11 Girls) Standard 2025-02-15 2025-02-15 Eden (WEG) 5 1490.3 4 4 1742 19.8 Details
24 George Schools Chess Trials 1 2025 (U11 Girls) Standard 2025-02-01 2025-02-01 Eden (WEG) 5 1490.3 5 4 1529.9 3.3 Details
25 Mzansi Interprovincial Youth Chess Championships 2024 (U12 Girls Championship) Classical 2024-12-16 2024-12-19 Capricorn (LCP) 7 1487.2 7 3.5 1424.3 -9.4 Details
26 Eden Closed 2024 (Ladies) Standard 2024-11-23 2024-11-24 Eden (WEG) 5 1490.5 5 3 1463 -2.1 Details
27 Eden Chess Union League 2024 (1st Division) Standard 2024-10-12 2024-10-12 Eden (WEG) 5 1516 5 2 1344.7 -15.9 Details
28 Western Cape Top Schools Championship 2024 (U11 Girls) Standard 2024-08-30 2024-09-01 Eden (WEG) 5 1496.1 5 4 1614.7 12.4 Details
29 Eden Top Schools 2024 (U11 Girls) Standard 2024-08-17 2024-08-17 Eden (WEG) 5 1469.3 4 4 1680.7 16.8 Details
30 George Primary Top Schools 2024 (U11) Standard 2024-07-20 2024-07-20 Eden (WEG) 5 1502.8 4 0.5 1235.9 -20.9 Details
31 2024 African Youth Chess Championship Classical 2024-06-16 2024-06-22 Tshwane (GTP) 9 1581.8 9 4.5 1323.9 -49.4 Details
32 South African Junior Closed Chess Championship 2024 (U10 Girls) Classical 2024-04-27 2024-05-01 Ekurhuleni (GE) 9 1577.6 9 6 1518.1 -11.4 Details
33 Western Cape PS Individuals Championship 2024 (U11 Girls) Standard 2024-05-04 2024-05-05 West Coast (WCU) 6 1577.6 6 5 1654.8 10.8 Details
34 Eden Chess Trials 2 2024 (U12) Standard 2024-04-13 2024-04-20 Eden (WEG) 10 1592.2 10 6.5 1542.4 -9.1 Details
35 Eden School Chess Trials 1 2024 (U11 Girls) Standard 2024-03-09 2024-03-09 Eden (WEG) 5 1502.1 5 5 1762.4 26.2 Details
36 George Schools Trials 3 2024 (U11 Girls) Standard 2024-03-02 2024-03-02 Eden (WEG) 5 1502.1 5 4 1587 7.6 Details
37 Southern Knights Rapid 2024 (Junior) Rapid 2024-02-24 2024-02-24 Eden (WEG) 6 1414.4 6 4 1464.4 4.3 Details
38 George Schools Trials 2 2024 (U11 Girls) Standard 2024-02-17 2024-02-17 Eden (WEG) 5 1414.4 5 5 1693 28.1 Details
39 George Schools Trials 1 2024 (U11 Girls) Standard 2024-02-03 2024-02-03 Eden (WEG) 5 1414.4 5 4 1651.1 22.4 Details
40 Eden Open 2023 (C) Standard 2023-12-02 2023-12-02 Eden (WEG) 5 1455.6 5 2 1247.7 -20.9 Details
41 2023 Western Cape Rural Cup (U10) Standard 2023-12-09 2023-12-10 Cape Winelands (WCW) 5 1455.6 2 1 1330.8 -4.8 Details
42 Western Cape Club Championships 2023 (Tier 2) Standard 2023-10-21 2023-10-22 Eden (WEG) 5 1486.6 5 3 1297.8 -19.4 Details
43 Mossel Bay Open 2023 (C) Rapid 2023-09-30 2023-09-30 Eden (WEG) 5 1456.8 5 4 1610.2 10.5 Details
44 Western Cape Top Schools 2023 (U9 Mixed) Standard 2023-09-02 2023-09-03 Cape Winelands (WCW) 6 1456.8 6 4 1525.8 8.1 Details
45 Pacaltsdorp Chess Club Open 2023 (Development) Rapid 2023-08-26 2023-08-26 Eden (WEG) 6 1469 5 3 1356.3 -7.4 Details
46 Eden Top Schools 2023 (U9 Mix) Standard 2023-08-19 2023-08-19 Eden (WEG) 5 1469 5 4 1447 -0.3 Details
47 Top Schools 2023 (U9) Standard 2023-07-29 2023-07-29 Eden (WEG) 5 1459.2 5 4 1511.7 6 Details
48 Western Cape PS Individuals 2023 (U9 Girls) Standard 2023-05-05 2023-05-06 Cape Town (WCT) 6 1408.3 6 5 1499.1 11 Details
49 Eden Trials 2+3 2023 (U10) Standard 2023-04-15 2023-05-13 Eden (WEG) 10 1408.3 9 6 1428.5 4.5 Details
50 George Chess Club Winter Open 2023 (D) Standard 2023-05-20 2023-05-20 Eden (WEG) 5 1408.3 4 3 1464.4 3.2 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 54
Wins 28
Draws 8
Losses 18
White 28
Black 26
White wins 16
Black wins 12
Score 32
Percent 59.3
Dp 78.7
AOR 1540.2
Performance 1618.9
Game statistics (History)
Games 315
Wins 213
Draws 29
Losses 73
White 156
Black 159
White wins 105
Black wins 108
Score 227.5
Percent 72.2
Dp 188.9
AOR 1381.1
Performance 1569.9
Rankings (Main)
National
Overall 858
Gender 61
Age group 48
Gender/Age 9
Provincial
Overall 256
Gender 23
Age group 18
Gender/Age 5
Regional
Overall 35
Gender 3
Age group 4
Gender/Age 1
Rankings (Standard)
National
Overall 691
Gender 45
Age group 36
Gender/Age 5
Provincial
Overall 211
Gender 17
Age group 13
Gender/Age 3
Regional
Overall 25
Gender 2
Age group 4
Gender/Age 1
Rankings (Rapid)
National
Overall 955
Gender 113
Age group 150
Gender/Age 29
Provincial
Overall 447
Gender 67
Age group 72
Gender/Age 17
Regional
Overall 51
Gender 4
Age group 9
Gender/Age 3
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 54
Score 32
Percent 59.3
Aor 1540.2
Dp 78.7
Prat 1618.9
Performance (12 months)
Games 86
Score 55
Percent 64
Aor 1488.8
Dp 118.6
Prat 1607.4
Performance (History)
Games 315
Score 227.5
Percent 72.2
Aor 1381.1
Dp 188.9
Prat 1569.9
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Botha, J (Jaylie) 7 6 1 George Chess Trials 1 2023 (U9 Girls) Western Cape Schools Individual Championship 2025 (U11 Girls) Details
Overall 2 Barnard, M (Marizaan) 6 4 2 George Schools Trials 1 2024 (U11 Girls) George Trials 1 2026 (U13 Girls) Details
Overall 3 Blignaut, DC (Dane) 6 1 5 George Schools Trials 1 2024 (U11 Girls) George Trials 2 2026 (U13 Girls) Details
Overall 4 Mpuru, J (JK MoAfrika) 6 3 3 Eden Trials 2+3 2023 (U10) Eden Chess Trials 2 2025 (U12) Details
Overall 5 Magomarele, T (Thato) 6 3 3 George Schools Trials 3 2024 (U11 Girls) Eden Schools Chess Trials 1 2025 (U11 Girls) Details
Standard 1 Magomarele, T (Thato) 6 3 3 George Schools Trials 3 2024 (U11 Girls) Eden Schools Chess Trials 1 2025 (U11 Girls) Details
Standard 2 Barnard, M (Marizaan) 6 4 2 George Schools Trials 1 2024 (U11 Girls) George Trials 1 2026 (U13 Girls) Details
Standard 3 Botha, J (Jaylie) 6 6 0 George Chess Trials 1 2023 (U9 Girls) Western Cape Schools Individual Championship 2025 (U11 Girls) Details
Standard 4 Mpuru, J (JK MoAfrika) 6 3 3 Eden Trials 2+3 2023 (U10) Eden Chess Trials 2 2025 (U12) Details
Standard 5 Blignaut, DC (Dane) 5 1 4 George Schools Trials 1 2024 (U11 Girls) George Trials 2 2026 (U13 Girls) Details
Rapid 1 Marner, B (Bryan Neil) 3 3 0 Mossel Bay Open 2023 (C) Eden Rapid 2025 (B) Details
Rapid 2 Sampson, E (Eejay) 2 2 0 Mossel Bay Open 2023 (C) Southern Knights Rapid 2024 (Junior) Details
Rapid 3 Da Silva, D (Darren) 2 1 1 Pacaltsdorp Chess Club Open 2023 (Development) Mossel Bay Open 2023 (C) Details