Player Page

Roos, G (Gabriella)
Dob: 2008/10/07 (U18)
Gender: Female
Chess SA id: 208066845
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s):
Last active: 2020/02/01 (1567 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 rating1120.9
Curent Weighted rating1120.9
Curent Weighted performance488.1
Current official/published rating (highest between Raw, WR and WP)1120.9
Current floor (min rating allowed)620.9
Current highest rating achieved1120.9
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)±185.6
Current Raw change used (final)0.0
Projected new Raw rating1120.9
Projected new Weighed rating1120.9
Projected new Weighted performance488.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1120.9
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1120.9
Projected new floor620.9
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 rating1112.0
Curent Weighted rating1112.0
Curent Weighted performance483.1
Current official/published rating (highest between Raw, WR and WP)1112.0
Current floor (min rating allowed)612.0
Current highest rating achieved1112.0
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)±188.0
Current Raw change used (final)0.0
Projected new Raw rating1112.0
Projected new Weighed rating1112.0
Projected new Weighted performance483.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1112.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1112.0
Projected new floor612.0
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 rating626.0
Curent Weighted rating626.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)626.0
Current floor (min rating allowed)500.0
Current highest rating achieved626.0
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)±375.7
Current Raw change used (final)0.0
Projected new Raw rating626.0
Projected new Weighed rating626.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)626.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating626.0
Projected new floor500.0
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 rating626.0
Curent Weighted rating626.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)626.0
Current floor (min rating allowed)500.0
Current highest rating achieved626.0
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)±375.7
Current Raw change used (final)0.0
Projected new Raw rating626.0
Projected new Weighed rating626.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)626.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating626.0
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
18 Heidelberg Open 2020 (C) 2020/02/01 2020/02/01 Sedibeng (GSV) Standard 60 0.83 5 5 2.5 1109.3 1095.2 Analysis
17 2019 Gauteng School League Finals (U13 Girls) 2019/08/23 2019/08/23 Tshwane (GTP) Standard 60 0.83 5 5 3.0 943.6 943.0 Analysis
16 D7 Primary School League 2019 (Girls) 2019/08/03 2019/08/03 Sedibeng (GSV) Standard 60 0.83 6 6 4.0 943.6 943.0 Analysis
15 D7 Individuals 2019 (U11 Girls) 2019/05/04 2019/05/04 Sedibeng (GSV) Standard 60 0.83 5 5 3.0 891.8 877.8 Analysis
14 2019 Heidelberg Open (C) 2019/02/02 2019/02/02 Sedibeng (GSV) Standard 120 1.00 5 5 1.0 919.8 901.4 Analysis
13 South African Junior Team Championships 2018 (U12D) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 6 2.5 1065.5 1063.8 Analysis
12 Eagle`s Open 2018 (C) 2018/12/08 2018/12/08 Sedibeng (GSV) Standard 61 0.83 5 4 0.0 1065.5 1063.8 Analysis
11 2018 Interregion Sedibeng vs Ekurhuleni (P) 2018/11/03 2018/11/03 Sedibeng (GSV) Standard 60 0.83 5 5 2.5 1091.7 1096.2 Analysis
10 2018 Sedibeng Summer Open (I) 2018/10/20 2018/10/20 Sedibeng (GSV) Standard 60 0.83 5 5 4.5 1059.2 1059.0 Analysis
9 2018 Gauteng League Final (U11) 2018/08/24 2018/08/24 Tshwane (GTP) Standard 60 0.83 5 4 2.0 1064.2 1067.4 Analysis
8 Hoerskool Drie Riviere Open 2018 (D) 2018/06/09 2018/06/09 Sedibeng (GSV) Standard 61 0.83 5 5 3.0 1028.4 1031.8 Analysis
7 2018 Gauteng Secondary Schools Individual Chess Championships (U11 Girls) 2018/05/25 2018/05/25 Tshwane (GTP) Standard 60 0.83 5 5 3.0 732.8 757.2 Analysis
6 Word of Life Open 2018 (D) 2018/05/12 2018/05/12 Sedibeng (GSV) Standard 60 0.83 5 5 3.0 732.8 757.2 Analysis
5 Heidelberg Skaak Klub 2018 (Team 11) 2018/05/05 2018/05/05 Sedibeng (GSV) Standard 60 0.83 5 5 2.0 732.8 757.2 Analysis
4 D7 Primary School League 2023 (U11 Boys+Mixed) 2018/04/21 2018/04/21 Sedibeng (GSV) Standard 61 0.83 5 5 4.0 622.9 625.2 Analysis
3 D7 Individual 2018 (U11 Girls) 2018/02/24 2018/02/24 Sedibeng (GSV) Standard 61 0.83 5 5 3.0 611.6 611.6 Analysis
2 2018 Volkskool Open (E) 2018/02/17 2018/02/17 Sedibeng (GSV) Standard 60 0.83 5 5 2.0 611.6 611.6 Analysis
1 South African Junior Team Championships 2017 (U10 Girls) 2018/01/04 2018/01/08 4 Knights (4K) Standard 120 1.00 7 6 2.5 626.0 626.0 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 91 43 9 39 47.5 52.2 18.7 952.6 971.3
White 48 28 3 17 29.5 61.5 97.4 924.3 1021.7
Black 43 15 6 22 18.0 41.9 -69.2 984.2 915.0
Standard All 91 43 9 39 47.5 52.2 18.7 952.6 971.3
White 48 28 3 17 29.5 61.5 97.4 924.3 1021.7
Black 43 15 6 22 18.0 41.9 -69.2 984.2 915.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2080108481 Kok, S (Sydney) 3 3.0 3 0 0 100.0 998.8 425.0 1423.8 View list
2 1080100350 Beere, A (Aidan) 3 2.5 2 1 0 83.3 794.7 283.3 1078.0 View list
3 2070108498 Janse Van Rensburg, L (Lene) 2 2.0 2 0 0 100.0 943.6 425.0 1368.6 View list
4 207091197 Vogel, D (Dane) 2 2.0 2 0 0 100.0 611.6 425.0 1036.6 View list
5 207064041 Coetzee, A (Anika) 2 0.0 0 0 2 0.0 611.6 -425.0 186.6 View list
6 1070097828 Husha, O (Omphile) 2 0.0 0 0 2 0.0 677.8 -425.0 252.8 View list
7 207071071 Motloung, L (Lerato) 2 0.0 0 0 2 0.0 838.5 -425.0 413.5 View list
8 107086032 Naude, E (Enrique) 2 0.0 0 0 2 0.0 880.6 -425.0 455.6 View list
9 206091203 Smangele, G (Gladile) 2 0.0 0 0 2 0.0 943.6 -425.0 518.6 View list
10 108091991 Arlow, JP (Jp) 1 1.0 1 0 0 100.0 622.9 425.0 1047.9 View list
11 2080113613 Ackerman, B (Beulah) 1 1.0 1 0 0 100.0 891.8 425.0 1316.8 View list
12 108091411 Botha, K (Kriegler) 1 1.0 1 0 0 100.0 732.8 425.0 1157.8 View list
13 207093992 Bosley, S (Sarah-Ann) 1 1.0 1 0 0 100.0 943.6 425.0 1368.6 View list
14 1000108483 Bokang, M (Mthambo) 1 1.0 1 0 0 100.0 919.8 425.0 1344.8 View list
15 208073206 Fauconier, A (Amber) 1 1.0 1 0 0 100.0 626.0 425.0 1051.0 View list
16 2080103249 Dube, A (Amahle) 1 1.0 1 0 0 100.0 732.8 425.0 1157.8 View list
17 107083657 Kesiamang, O (Oreratile) 1 1.0 1 0 0 100.0 1065.5 425.0 1490.5 View list
18 207077136 Kleynhans, N (Nelrie) 1 1.0 1 0 0 100.0 943.6 425.0 1368.6 View list
19 207079018 Labuschagne, R (Reinhilde) 1 1.0 1 0 0 100.0 611.6 425.0 1036.6 View list
20 208060777 Mahlangu, N (Noluthando) 1 1.0 1 0 0 100.0 732.8 425.0 1157.8 View list