Player Page

Rostoll, A (Arno)
Dob: 2017/09/17 (U8)
Gender: Male
Chess SA id: 1170192944
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2024/05/05 (28 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
Curent Raw rating1339.7
Curent Weighted rating1241.9
Curent Weighted performance1300.2
Current official/published rating (highest between Raw, WR and WP)1339.7
Current floor (min rating allowed)883.9
Current highest rating achieved1383.9
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)±135.9
Current Raw change used (final)0.0
Projected new Raw rating1339.7
Projected new Weighed rating1251.2
Projected new Weighted performance1300.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1339.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1383.9
Projected new floor883.9
Projected new K-facor36
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 rating1329.2
Curent Weighted rating1243.6
Curent Weighted performance1299.0
Current official/published rating (highest between Raw, WR and WP)1329.2
Current floor (min rating allowed)882.5
Current highest rating achieved1382.5
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)±137.9
Current Raw change used (final)0.0
Projected new Raw rating1329.2
Projected new Weighed rating1252.0
Projected new Weighted performance1299.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1329.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1382.5
Projected new floor882.5
Projected new K-facor36
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved0.0
Current K-factor40
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 rating1200.0
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 rating0.0
Projected new floor700.0
Projected new K-facor40
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved0.0
Current K-factor40
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 rating1200.0
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 rating0.0
Projected new floor700.0
Projected new K-facor40
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
6 Western Cape PS Individuals Championship 2024 (U7 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 2.5 1383.9 1382.5 Analysis
5 Eden Chess Trials 2 2024 (U8) 2024/04/13 2024/04/20 Eden (WEG) Standard 60 0.83 10 10 6.0 1344.6 1365.0 Analysis
4 Eden School Chess Trials 1 2024 (U7 Boys) 2024/03/09 2024/03/09 Eden District (WEG) Standard 60 0.83 5 5 4.0 1286.3 1302.0 Analysis
3 George Schools Trials 3 2024 (U7 Boys) 2024/03/02 2024/03/02 Eden District (WEG) Standard 60 0.83 5 5 4.0 1286.3 1302.0 Analysis
2 George Schools Trials 2 2024 (U7 Boys) 2024/02/17 2024/02/17 Eden District (WEG) Standard 60 0.83 5 5 5.0 1200.0 1200.0 Analysis
1 George Schools Trials 1 2024 (U7 Boys) 2024/02/03 2024/02/03 Eden District (WEG) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 Western Cape PS Individuals Championship 2024 (U7 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 2.5 1383.9 1382.5 Analysis
5 Eden Chess Trials 2 2024 (U8) 2024/04/13 2024/04/20 Eden (WEG) Standard 60 0.83 10 10 6.0 1344.6 1365.0 Analysis
4 Eden School Chess Trials 1 2024 (U7 Boys) 2024/03/09 2024/03/09 Eden District (WEG) Standard 60 0.83 5 5 4.0 1286.3 1302.0 Analysis
3 George Schools Trials 3 2024 (U7 Boys) 2024/03/02 2024/03/02 Eden District (WEG) Standard 60 0.83 5 5 4.0 1286.3 1302.0 Analysis
2 George Schools Trials 2 2024 (U7 Boys) 2024/02/17 2024/02/17 Eden District (WEG) Standard 60 0.83 5 5 5.0 1200.0 1200.0 Analysis
1 George Schools Trials 1 2024 (U7 Boys) 2024/02/03 2024/02/03 Eden District (WEG) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 36 24 1 11 24.5 68.1 153.5 1200.1 1353.6
White 20 17 1 2 17.5 87.5 318.8 1188.0 1506.8
Black 16 7 0 9 7.0 43.8 -53.1 1215.2 1162.1
Standard All 36 24 1 11 24.5 68.1 153.5 1200.1 1353.6
White 20 17 1 2 17.5 87.5 318.8 1188.0 1506.8
Black 16 7 0 9 7.0 43.8 -53.1 1215.2 1162.1
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 36 24 1 11 24.5 68.1 153.5 1200.1 1353.6
White 20 17 1 2 17.5 87.5 318.8 1188.0 1506.8
Black 16 7 0 9 7.0 43.8 -53.1 1215.2 1162.1
Standard All 36 24 1 11 24.5 68.1 153.5 1200.1 1353.6
White 20 17 1 2 17.5 87.5 318.8 1188.0 1506.8
Black 16 7 0 9 7.0 43.8 -53.1 1215.2 1162.1
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1170192945 Vermeulen, E (Elster) 6 4.0 4 0 2 66.7 1283.5 141.7 1425.2 View list
2 1170148816 Van Der Merwe, F (Finley) 5 2.0 2 0 3 40.0 1263.4 -85.0 1178.4 View list
3 1170192941 Muller, D (Darryn) 3 3.0 3 0 0 100.0 1277.0 425.0 1702.0 View list
4 1170192943 Rens, D (Deauwin) 3 2.0 2 0 1 66.7 1277.0 141.7 1418.6 View list
5 1170192937 Hessie, L (Luke) 2 2.0 2 0 0 100.0 1243.2 425.0 1668.2 View list
6 1170192938 Kennedy, C (Cuan) 2 2.0 2 0 0 100.0 1243.2 425.0 1668.2 View list
7 1170156971 Cornforth, J (Joshua) 2 1.0 1 0 1 50.0 1272.3 0.0 1272.3 View list
8 1170300082 Le Roux, M (Markus) 1 1.0 1 0 0 100.0 1383.9 425.0 1808.9 View list
9 1170192939 Kotze, B (Barend) 1 1.0 1 0 0 100.0 1286.3 425.0 1711.3 View list
10 1170191220 Stein, J (Jack) 1 1.0 1 0 0 100.0 1383.9 425.0 1808.9 View list
11 2170300538 Janse Van Rensburg, L (Louise) 1 1.0 1 0 0 100.0 1344.6 425.0 1769.6 View list
12 2170148873 Eiliyah, D (Drude) 1 1.0 1 0 0 100.0 1344.6 425.0 1769.6 View list
13 1170192936 Dimatellis, N (Niko) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
14 1170193019 Bruiners, J (Jeanne) 1 1.0 1 0 0 100.0 1344.6 425.0 1769.6 View list
15 2170193021 Bezuidenhout, C (Clara) 1 1.0 1 0 0 100.0 1344.6 425.0 1769.6 View list
16 1170193573 Baron, R (Raziel) 1 0.5 0 1 0 50.0 1383.9 0.0 1383.9 View list
17 1170148877 Wyngaard, L (Luke) 1 0.0 0 0 1 0.0 1286.3 -425.0 861.3 View list
18 1170192942 Rens, B (Beauwin) 1 0.0 0 0 1 0.0 1344.6 -425.0 919.6 View list
19 1170300085 Louw, S (Sarel Johannes) 1 0.0 0 0 1 0.0 1383.9 -425.0 958.9 View list
20 1170300084 Lourens, L (Lihan) 1 0.0 0 0 1 0.0 1383.9 -425.0 958.9 View list