Player Page

Du Preez, S (Stefan)
Dob: 2006/06/08 (U20)
Gender: Male
Chess SA id: 1060099412
FIDE id:
Region: Buffalo City (EBC)
Citizen: RSA
Title(s):
Last active: 2019/02/09 (1964 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 rating1078.3
Current Weighted rating1078.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1078.3
Current highest rating achieved1134.3
Current floor (min rating allowed)634.3
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)±197.2
Current Raw change used (final)0.0
Projected new Raw rating1078.3
Projected new Weighed rating992.0
Projected new Weighted performance247.6
Projected new final Raw rating (if new WP > new Raw)1078.3
Projected new highest rating1134.3
Projected new floor634.3
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1078.3
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 rating1085.6
Current Weighted rating1085.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1085.6
Current highest rating achieved1120.8
Current floor (min rating allowed)620.8
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)±195.2
Current Raw change used (final)0.0
Projected new Raw rating1085.6
Projected new Weighed rating998.8
Projected new Weighted performance217.8
Projected new final Raw rating (if new WP > new Raw)1085.6
Projected new highest rating1120.8
Projected new floor620.8
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1085.6
Projected effective change (new Official - current Official)=0.0
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 rating1138.8
Current Weighted rating1138.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1138.8
Current highest rating achieved1138.8
Current floor (min rating allowed)638.8
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)±180.9
Current Raw change used (final)0.0
Projected new Raw rating1138.8
Projected new Weighed rating1047.7
Projected new Weighted performance71.5
Projected new final Raw rating (if new WP > new Raw)1138.8
Projected new highest rating1138.8
Projected new floor638.8
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1138.8
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.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Buffalo City Trials 1 of 5 2019 (U12B+U14B) 2019/02/09 2019/02/09 Buffalo City (EBC) Standard 60 0.83 5 5 2.0 1068.7 1074.8 Analysis
3 East London School League 2018 (Primary School B) 2018/08/18 2018/08/18 Buffalo City (EBC) Standard 60 0.83 5 5 2.0 1103.6 1120.8 Analysis
2 3rd Buffalo Trials 2018 (U12B+U14B) 2018/04/14 2018/04/14 Buffalo City (EBC) Rapid 30 0.60 7 7 3.0 1134.3 1200.0 Analysis
1 2nd Buffalo Trials 2018 (Primary School) 2018/03/17 2018/03/17 Buffalo City (EBC) Standard 60 0.83 5 5 2.0 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 22 9 0 13 9.0 40.9 -77.3 1010.3 933.0
White 10 3 0 7 3.0 30.0 -170.0 1027.9 857.9
Black 12 6 0 6 6.0 50.0 0.0 995.7 995.7
Standard All 15 6 0 9 6.0 40.0 -85.0 1007.0 922.0
White 6 2 0 4 2.0 33.3 -141.7 1026.8 885.1
Black 9 4 0 5 4.0 44.4 -47.2 993.9 946.7
Rapid All 7 3 0 4 3.0 42.9 -60.7 1017.3 956.6
White 4 1 0 3 1.0 25.0 -212.5 1029.6 817.1
Black 3 2 0 1 2.0 66.7 141.7 1000.9 1142.6
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 208076313 Komans, A (Aggie) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
2 1080097288 Jayakrishnan, P (Pranav) 1 1.0 1 0 0 100.0 1134.3 425.0 1559.3 View list
3 1060109303 Naidoo, R (Rahul) 1 1.0 1 0 0 100.0 1068.7 425.0 1493.7 View list
4 2080100206 Markus, D (Donne) 1 1.0 1 0 0 100.0 1134.3 425.0 1559.3 View list
5 1060109302 Nkinyeni, L (Lihle) 1 1.0 1 0 0 100.0 1068.7 425.0 1493.7 View list
6 1050105533 Nhando, T (Tamupiwa) 1 1.0 1 0 0 100.0 1103.6 425.0 1528.6 View list
7 2060099402 Swanepoel, N (Nakischa) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 208073021 Pretorius, L (Lelane) 1 1.0 1 0 0 100.0 1103.6 425.0 1528.6 View list
9 2080099401 Van Tonder, L (Liechen) 1 1.0 1 0 0 100.0 1134.3 425.0 1559.3 View list
10 105078265 Van Rooyen, S (Stephan) 1 0.0 0 0 1 0.0 1134.3 -425.0 709.3 View list
11 1060109308 Obaray, J (Jordan) 1 0.0 0 0 1 0.0 1068.7 -425.0 643.7 View list
12 1060099416 Nyakabau, A (Albert) 1 0.0 0 0 1 0.0 1103.6 -425.0 678.6 View list
13 1090109296 Schutte, A (Adrian) 1 0.0 0 0 1 0.0 1068.7 -425.0 643.7 View list
14 108076329 Scheepers, S (Storm) 1 0.0 0 0 1 0.0 1103.6 -425.0 678.6 View list
15 1070109306 Qaqoba, L (Luthando) 1 0.0 0 0 1 0.0 1068.7 -425.0 643.7 View list
16 2070100203 Promod, N (Neha) 1 0.0 0 0 1 0.0 1134.3 -425.0 709.3 View list
17 1060100204 Nel, E (Ethan) 1 0.0 0 0 1 0.0 1134.3 -425.0 709.3 View list
18 108092864 Lombaard, A (Adriaan) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
19 205055987 Hyder, A (Alina) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 1050100896 Harington, N (Nathan) 1 0.0 0 0 1 0.0 1103.6 -425.0 678.6 View list