Player Page

Grobler, Z (Zandre)
Dob: 2006/07/16 (U20)
Gender: Male
Chess SA id: 106065039
FIDE id: Grobler
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2024/10/05 (47 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 rating1581.4
Current Weighted rating1550.1
Current Weighted performance1438.2
Current official/published rating (highest between Raw, WR and WP)1581.4
Current highest rating achieved1581.4
Current floor (min rating allowed)1081.4
Current K-factor32
Games played this month6
Score (S)3.0
Expected score (We)4.44
Difference (S-We)-1.20
Current Raw change (no limits, including tournament time weight)-38.2
Current min/max change allowed (with limits)±96.3
Current Raw change used (final)-38.2
Projected new Raw rating1543.2
Projected new Weighed rating1428.5
Projected new Weighted performance1421.0
Projected new final Raw rating (if new WP > new Raw)1543.2
Projected new highest rating1581.4
Projected new floor1081.4
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1543.2
Projected effective change (new Official - current Official)-38.2
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 rating1561.4
Current Weighted rating1529.0
Current Weighted performance1428.1
Current official/published rating (highest between Raw, WR and WP)1561.4
Current highest rating achieved1561.4
Current floor (min rating allowed)1061.4
Current K-factor32
Games played this month6
Score (S)3.0
Expected score (We)4.37
Difference (S-We)-1.37
Current Raw change (no limits, including tournament time weight)-43.8
Current min/max change allowed (with limits)±99.1
Current Raw change used (final)-43.8
Projected new Raw rating1517.6
Projected new Weighed rating1409.1
Projected new Weighted performance1421.0
Projected new final Raw rating (if new WP > new Raw)1517.6
Projected new highest rating1561.4
Projected new floor1061.4
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1517.6
Projected effective change (new Official - current Official)-43.8
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 rating1442.3
Current Weighted rating1436.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1442.3
Current highest rating achieved1442.3
Current floor (min rating allowed)942.3
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)±117.4
Current Raw change used (final)0.0
Projected new Raw rating1442.3
Projected new Weighed rating1322.6
Projected new Weighted performance857.9
Projected new final Raw rating (if new WP > new Raw)1442.3
Projected new highest rating1442.3
Projected new floor942.3
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1442.3
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 rating1363.1
Current Weighted rating1363.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1363.1
Current highest rating achieved1363.1
Current floor (min rating allowed)863.1
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)±131.4
Current Raw change used (final)0.0
Projected new Raw rating1363.1
Projected new Weighed rating1254.1
Projected new Weighted performance119.2
Projected new final Raw rating (if new WP > new Raw)1363.1
Projected new highest rating1363.1
Projected new floor863.1
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1363.1
Projected effective change (new Official - current Official)=0.0
Tournaments
Tournament: Paarl Boys' High Chess Festival 2024 (Elite)
Start: 2024/10/04  End: 2024/10/05  Host: WCW  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 6
Games: 6  Score: 3.0
Main rating: 1581.4  Rating gain/loss: -38.2
Type rating: 1561.4  Rating gain/loss: -43.8
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 Paarl Boys' High Chess Festival 2024 (Elite) 2024/10/04 2024/10/05 Cape Winelands (WCW) Standard 60 0.83 6 6 3.0 1581.4 1561.4 Analysis
1 Grey College Team Championship 2024 (A) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 5.0 1525.0 1503.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
29 Paarl Boys' High Chess Festival 2024 (Elite) 2024/10/04 2024/10/05 Cape Winelands (WCW) Standard 60 0.83 6 6 3.0 1581.4 1561.4 Analysis
28 Grey College Team Championship 2024 (A) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 5.0 1525.0 1503.5 Analysis
27 2023 Western Cape Rural Cup (U18) 2023/12/09 2023/12/10 Cape Winelands (WCW) Standard 60 0.83 5 3 1.0 1538.8 1518.2 Analysis
26 Paarl Boys High Chess Festival 2023 (Elite Division) 2023/10/13 2023/10/14 Cape Winelands (WCW) Standard 60 0.83 6 6 4.5 1523.9 1494.2 Analysis
25 Western Cape Top Schools 2023 (U18 Mixed) 2023/09/02 2023/09/03 Cape Winelands (WCW) Standard 60 0.83 6 6 6.0 1478.7 1439.2 Analysis
24 CW Top Schools 2023 (U18 Mix) 2023/08/26 2023/08/26 Cape Winelands (WCW) Rapid 32 0.63 5 5 5.0 1458.7 1395.9 Analysis
23 Western Cape HS Individuals 2023 (U17 Boys) 2023/04/01 2023/04/02 Cape Town (WCT) Standard 60 0.83 6 6 4.0 1458.7 1439.8 Analysis
22 Cape Winelands Schools Prestige 2023 (U17 Boys) 2023/03/11 2023/03/11 Cape Winelands (WCW) Standard 60 0.83 5 4 2.5 1459.8 1440.8 Analysis
21 Cape Winelands Schools Chess - Trials 1 2023 (U17 Boys) 2023/02/25 2023/02/25 Cape Winelands (WCW) Standard 60 0.83 5 5 3.5 1414.5 1398.2 Analysis
20 Grey College Team Championship 2023 (A) 2023/02/03 2023/02/04 Mangaung (FMB) Standard 60 0.83 5 5 4.5 1414.5 1398.2 Analysis
19 Western Cape Top Schools 2022 (U18 Mix) 2022/09/16 2022/09/17 Overberg (WOS) Standard 60 0.83 5 5 3.0 1424.3 1410.4 Analysis
18 Cape Winelands Schools Top Schools 2022 (U18 Mix) 2022/08/27 2022/08/27 Cape Winelands (WCW) Standard 60 0.83 5 5 4.5 1376.8 1355.3 Analysis
17 Western Cape Schools Chess 2022 (U18 Boys) 2022/05/07 2022/05/08 Eden District (WEG) Standard 65 0.85 6 6 3.0 1375.6 1352.1 Analysis
16 Cape Winelands Schools 2022 (U18 Boys) 2022/03/05 2022/03/05 Cape Winelands (WCW) Standard 60 0.83 5 5 4.0 1347.8 1321.5 Analysis
15 Central Winelands Schools Individual Trials 2022 (U18 Boys) 2022/02/19 2022/02/19 Cape Winelands (WCW) Rapid 35 0.66 5 5 3.0 1340.9 1410.0 Analysis
14 Cape Winelands Schools Trials 1 2020 (U15 Boys) 2020/02/15 2020/02/15 Cape Winelands (WCW) Rapid 30 0.60 6 6 4.5 1325.1 1413.5 Analysis
13 Stellenberg Youth Chess Championship 2019 (A) 2019/04/30 2019/05/01 Cape Town (WCT) Standard 60 0.83 6 6 2.5 1333.5 1333.0 Analysis
12 Crossroads Open Chess Championship 2019 (C) 2019/04/27 2019/04/28 Cape Town (WCT) Standard 70 0.87 6 6 5.0 1285.0 1276.1 Analysis
11 South African Junior Blitz 2018 (U14) 2018/12/19 2018/12/19 4 Knights (4K) Blitz 5 0.18 7 7 5.0 1270.7 1417.9 Analysis
10 South African Junior Team Championships 2018 (U14A) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 6 3.5 1270.7 1266.7 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 11 7 2 2 8.0 72.7 193.2 1393.5 1586.7
White 6 5 1 0 5.5 91.7 354.2 1406.0 1760.1
Black 5 2 1 2 2.5 50.0 0.0 1378.6 1378.6
Standard All 11 7 2 2 8.0 72.7 193.2 1393.5 1586.7
White 6 5 1 0 5.5 91.7 354.2 1406.0 1760.1
Black 5 2 1 2 2.5 50.0 0.0 1378.6 1378.6
Rapid 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
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 165 95 36 34 113.0 68.5 157.1 1244.1 1401.2
White 85 48 20 17 58.0 68.2 155.0 1230.2 1385.2
Black 80 47 16 17 55.0 68.8 159.4 1258.9 1418.3
Standard All 138 75 35 28 92.5 67.0 144.7 1251.8 1396.5
White 71 39 19 13 48.5 68.3 155.6 1235.0 1390.7
Black 67 36 16 15 44.0 65.7 133.2 1269.5 1402.7
Rapid All 20 15 1 4 15.5 77.5 233.8 1207.1 1440.9
White 10 7 1 2 7.5 75.0 212.5 1176.3 1388.8
Black 10 8 0 2 8.0 80.0 255.0 1237.9 1492.9
Blitz All 7 5 0 2 5.0 71.4 182.1 1199.0 1381.1
White 4 2 0 2 2.0 50.0 0.0 1279.1 1279.1
Black 3 3 0 0 3.0 100.0 425.0 1092.1 1517.1
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 106045226 Palmer, C (Cheslin) 4 3.0 2 2 0 75.0 1317.1 212.5 1529.6 View list
2 106078134 Geyser, K (Kobus) 4 0.5 0 1 3 12.5 1346.5 -318.8 1027.7 View list
3 1060096732 Van Tonder, W (Wium) 3 1.0 0 2 1 33.3 1392.9 -141.7 1251.2 View list
4 106087912 Lielieveld, F (Franco) 3 0.5 0 1 2 16.7 1307.0 -283.3 1023.6 View list
5 105033072 Samuels, K (Kieran) 3 0.5 0 1 2 16.7 1311.9 -283.3 1028.6 View list
6 108088280 Mostert, M (Mikhail) 2 2.0 2 0 0 100.0 1468.7 425.0 1893.7 View list
7 105094690 Williams, V (Vogan) 2 2.0 2 0 0 100.0 1262.8 425.0 1687.8 View list
8 1080144982 Venter, I (Ian) 2 1.5 1 1 0 75.0 1552.7 212.5 1765.2 View list
9 103085390 Kedama, S (Sandiso) 2 1.0 1 0 1 50.0 1303.0 0.0 1303.0 View list
10 105090611 Mnyasta, T (Tezihano) 2 1.0 1 0 1 50.0 1299.9 0.0 1299.9 View list
11 106068298 Reddy, T (Thacian) 2 0.5 0 1 1 25.0 1387.1 -212.5 1174.6 View list
12 102085391 Thompson, T (Themba) 2 0.5 0 1 1 25.0 1344.9 -212.5 1132.4 View list
13 208061417 Botha, L (Lika) 1 1.0 1 0 0 100.0 1414.5 425.0 1839.5 View list
14 1040097434 Botha , S (Samuel Steyn) 1 1.0 1 0 0 100.0 1329.1 425.0 1754.1 View list
15 1060151290 Botes, J (Janye) 1 1.0 1 0 0 100.0 1414.5 425.0 1839.5 View list
16 106066851 Bosch, A (Altus) 1 1.0 1 0 0 100.0 1356.3 425.0 1781.3 View list
17 104046617 Booysen, L (Louis) 1 1.0 1 0 0 100.0 1329.1 425.0 1754.1 View list
18 105093493 Booysen, J (Jenilo) 1 1.0 1 0 0 100.0 1264.2 425.0 1689.2 View list
19 1090105696 Barradas, K (Keanu) 1 1.0 1 0 0 100.0 1525.0 425.0 1950.0 View list
20 1070143843 Badenhorst, M (Matthew Peter) 1 1.0 1 0 0 100.0 1525.0 425.0 1950.0 View list