Player Page

Roos, M (Mariska)
Dob: 2012/02/07 (U14)
Gender: Female
Chess SA id: 2120147409
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2023/03/11 (448 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 rating1104.2
Curent Weighted rating1111.4
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1111.4
Current floor (min rating allowed)672.6
Current highest rating achieved1172.6
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)±190.1
Current Raw change used (final)0.0
Projected new Raw rating1104.2
Projected new Weighed rating1109.5
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1109.5
Projected effective change (new Official - current Official)-1.9
Projected new highest rating1172.6
Projected new floor672.6
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 rating1111.6
Curent Weighted rating1120.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1120.3
Current floor (min rating allowed)662.4
Current highest rating achieved1162.4
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)±188.1
Current Raw change used (final)0.0
Projected new Raw rating1111.6
Projected new Weighed rating1118.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1118.2
Projected effective change (new Official - current Official)-2.1
Projected new highest rating1162.4
Projected new floor662.4
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 rating1159.2
Curent Weighted rating1160.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1160.0
Current floor (min rating allowed)659.2
Current highest rating achieved1159.2
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)±175.7
Current Raw change used (final)0.0
Projected new Raw rating1159.2
Projected new Weighed rating1159.6
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1159.6
Projected effective change (new Official - current Official)-0.4
Projected new highest rating1159.2
Projected new floor659.2
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)659.2
Current highest rating achieved1200.0
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 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 rating1200.0
Projected new floor659.2
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
3 Eden Trails 1 2023 (U11 Girls) 2023/03/11 2023/03/11 Eden District (WEG) Standard 60 0.83 5 5 1.0 1142.4 1162.4 Analysis
2 Hessequa Proewe 1 2023 (O11 Dogters) 2023/01/28 2023/01/28 Eden District (WEG) Standard 60 0.83 5 4 1.0 1172.6 1200.0 Analysis
1 Hessequa Ontwikkeling 2022 (Laerskole) 2022/10/22 2022/10/22 Eden District (WEG) Rapid 30 0.60 5 5 1.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
Standard 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
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 14 2 3 9 3.5 25.0 -212.5 1190.6 978.1
White 7 0 2 5 1.0 14.3 -303.6 1190.3 886.7
Black 7 2 1 4 2.5 35.7 -121.4 1190.9 1069.5
Standard All 9 2 0 7 2.0 22.2 -236.1 1194.9 958.8
White 4 0 0 4 0.0 0.0 -425.0 1204.4 779.4
Black 5 2 0 3 2.0 40.0 -85.0 1187.3 1102.3
Rapid All 5 0 3 2 1.5 30.0 -170.0 1182.9 1012.9
White 3 0 2 1 1.0 33.3 -141.7 1171.5 1029.8
Black 2 0 1 1 0.5 25.0 -212.5 1200.0 987.5
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2130151020 Snel, C (Caithlin) 1 1.0 1 0 0 100.0 1142.4 425.0 1567.4 View list
2 2130148838 Cullum, A (Abrahmia) 1 1.0 1 0 0 100.0 1172.6 425.0 1597.6 View list
3 1140147388 Hayman, J (Joshua) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
4 1140147387 Grobbelaar, S (Shaun) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
5 1130147370 Breedt, J (Janco) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
6 2120150020 Zwane, O (Othello) 1 0.0 0 0 1 0.0 1142.4 -425.0 717.4 View list
7 2090098402 Treurnicht, C (Chanique) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
8 2120148890 Theunissen, B (Brooklyn) 1 0.0 0 0 1 0.0 1142.4 -425.0 717.4 View list
9 2130136786 Rall, N (Nora) 1 0.0 0 0 1 0.0 1172.6 -425.0 747.6 View list
10 2120145214 Mzayifani, K (Khanyo) 1 0.0 0 0 1 0.0 1172.6 -425.0 747.6 View list
11 2130136784 Meyer, X (Xaydia) 1 0.0 0 0 1 0.0 1172.6 -425.0 747.6 View list
12 2130136783 Lamprecht, I (Isabella) 1 0.0 0 0 1 0.0 1142.4 -425.0 717.4 View list
13 1120147385 Grassini, S (Savannah) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
14 2120151016 Claassen, K (Katalaya) 1 0.0 0 0 1 0.0 1142.4 -425.0 717.4 View list