Player Page

Grobbelaar, M (Marlo)
Dob: 2016/01/07 (U10)
Gender: Male
Chess SA id: 1160159271
FIDE id:
Region: Overberg (WOS)
Citizen: RSA
Title(s):
Last active: 2024/05/05 (52 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 rating1210.3
Current Weighted rating1215.6
Current Weighted performance1127.0
Current official/published rating (highest between Raw, WR and WP)1215.6
Current highest rating achieved1239.6
Current floor (min rating allowed)739.6
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)±163.4
Current Raw change used (final)0.0
Projected new Raw rating1210.3
Projected new Weighed rating1118.8
Projected new Weighted performance1127.0
Projected new final Raw rating (if new WP > new Raw)1210.3
Projected new highest rating1239.6
Projected new floor739.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1210.3
Projected effective change (new Official - current Official)-5.3
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 rating1211.1
Current Weighted rating1222.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1222.0
Current highest rating achieved1248.2
Current floor (min rating allowed)748.2
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)±163.2
Current Raw change used (final)0.0
Projected new Raw rating1211.1
Projected new Weighed rating1124.9
Projected new Weighted performance893.4
Projected new final Raw rating (if new WP > new Raw)1211.1
Projected new highest rating1248.2
Projected new floor748.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1211.1
Projected effective change (new Official - current Official)-10.9
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 rating1216.9
Current Weighted rating1205.1
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1216.9
Current highest rating achieved1216.9
Current floor (min rating allowed)716.9
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)±161.9
Current Raw change used (final)0.0
Projected new Raw rating1216.9
Projected new Weighed rating1108.9
Projected new Weighted performance927.4
Projected new final Raw rating (if new WP > new Raw)1216.9
Projected new highest rating1216.9
Projected new floor716.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1216.9
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
4 Western Cape PS Individuals Championship 2024 (U9 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 5 1.0 1239.6 1248.2 Analysis
3 Overberg Schools - PS Closed 2024 (U9 Boys) 2024/03/16 2024/03/16 Overberg (WOS) Standard 60 0.83 5 5 3.0 1218.3 1233.1 Analysis
2 Overberg Schools - PS Trials Region 3 2024 (U9 Boys) 2024/03/02 2024/03/02 Overberg (WOS) Rapid 30 0.60 5 5 3.0 1218.3 1200.0 Analysis
1 Overberg Open Rapid 2024 (U7+U9) 2024/01/27 2024/01/27 Overberg (WOS) Rapid 20 0.47 5 5 2.0 1222.5 1205.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
7 Western Cape PS Individuals Championship 2024 (U9 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 5 1.0 1239.6 1248.2 Analysis
6 Overberg Schools - PS Closed 2024 (U9 Boys) 2024/03/16 2024/03/16 Overberg (WOS) Standard 60 0.83 5 5 3.0 1218.3 1233.1 Analysis
5 Overberg Schools - PS Trials Region 3 2024 (U9 Boys) 2024/03/02 2024/03/02 Overberg (WOS) Rapid 30 0.60 5 5 3.0 1218.3 1200.0 Analysis
4 Overberg Open Rapid 2024 (U7+U9) 2024/01/27 2024/01/27 Overberg (WOS) Rapid 20 0.47 5 5 2.0 1222.5 1205.4 Analysis
3 Kingsway Open 2023 (U8) 2023/10/28 2023/10/28 Overberg (WOS) Rapid 20 0.47 5 5 2.5 1223.3 1200.0 Analysis
2 Western Cape Top Schools 2023 (U7 Mixed) 2023/09/02 2023/09/03 Cape Winelands (WCW) Standard 60 0.83 5 2 2.0 1198.8 1200.0 Analysis
1 Overberg Top Schools 2023 (U7+U9) 2023/08/05 2023/08/05 Overberg (WOS) Standard 60 0.83 5 5 2.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 20 9 0 11 9.0 45.0 -42.5 1245.5 1203.0
White 9 4 0 5 4.0 44.4 -47.2 1241.9 1194.7
Black 11 5 0 6 5.0 45.5 -38.6 1248.4 1209.8
Standard All 10 4 0 6 4.0 40.0 -85.0 1265.8 1180.8
White 4 2 0 2 2.0 50.0 0.0 1248.3 1248.3
Black 6 2 0 4 2.0 33.3 -141.7 1277.5 1135.8
Rapid All 10 5 0 5 5.0 50.0 0.0 1225.2 1225.2
White 5 2 0 3 2.0 40.0 -85.0 1236.9 1151.9
Black 5 3 0 2 3.0 60.0 85.0 1213.5 1298.5
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 32 14 4 14 16.0 50.0 0.0 1225.0 1225.0
White 15 8 1 6 8.5 56.7 56.7 1216.2 1272.8
Black 17 6 3 8 7.5 44.1 -50.0 1232.8 1182.8
Standard All 17 7 3 7 8.5 50.0 0.0 1229.6 1229.6
White 8 4 1 3 4.5 56.3 53.1 1213.4 1266.6
Black 9 3 2 4 4.0 44.4 -47.2 1244.0 1196.8
Rapid All 15 7 1 7 7.5 50.0 0.0 1219.8 1219.8
White 7 4 0 3 4.0 57.1 60.7 1219.3 1280.0
Black 8 3 1 4 3.5 43.8 -53.1 1220.3 1167.2
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 1160152344 Faasen, C (Charles) 3 2.0 1 2 0 66.7 1215.3 141.7 1356.9 View list
2 1160152343 Du Preez, J (Janco) 2 2.0 2 0 0 100.0 1220.8 425.0 1645.8 View list
3 1160300091 Grieb, N (Nathan) 2 1.0 1 0 1 50.0 1228.9 0.0 1228.9 View list
4 1170191692 Henning, A (Alex) 1 1.0 1 0 0 100.0 1222.5 425.0 1647.5 View list
5 1160161827 Heasman, J (Jd) 1 1.0 1 0 0 100.0 1198.8 425.0 1623.8 View list
6 1150300090 Coetzee, M (Milan) 1 1.0 1 0 0 100.0 1218.3 425.0 1643.3 View list
7 1150150061 Buhr, W (Wilhelm) 1 1.0 1 0 0 100.0 1218.3 425.0 1643.3 View list
8 2160157861 Kotze, M (Mirah) 1 1.0 1 0 0 100.0 1198.8 425.0 1623.8 View list
9 1150300095 Myburgh, J (Joshua) 1 1.0 1 0 0 100.0 1218.3 425.0 1643.3 View list
10 2110159243 Monroe, C (Chloe) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
11 1150300098 Oosthuizen, D (Daniel) 1 1.0 1 0 0 100.0 1218.3 425.0 1643.3 View list
12 1150150067 Otto, X (Xavier) 1 1.0 1 0 0 100.0 1218.3 425.0 1643.3 View list
13 1150151365 Stodart, D (Daniël) 1 1.0 1 0 0 100.0 1223.3 425.0 1648.3 View list
14 2140159276 Le Roux, C (Carmen) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
15 1140145280 Nel, C (Caleb) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
16 1150150063 Grove, D (Deandre) 1 0.0 0 0 1 0.0 1223.3 -425.0 798.3 View list
17 1160159275 Kuhn, D (Dian) 1 0.0 0 0 1 0.0 1222.5 -425.0 797.5 View list
18 2170147533 Klopper, E (Elbe) 1 0.0 0 0 1 0.0 1222.5 -425.0 797.5 View list
19 1160146207 Kleinbooi, R (Riley) 1 0.0 0 0 1 0.0 1239.6 -425.0 814.6 View list
20 1150138484 Henning, I (Ivan) 1 0.0 0 0 1 0.0 1218.3 -425.0 793.3 View list