Player Page

Pretorius, A (Arnold)
Dob: 2009/03/23 (U16)
Gender: Male
Chess SA id: 1090110072
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2020/02/22 (1738 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 rating1037.9
Current Weighted rating1037.9
Current Weighted performance386.3
Current official/published rating (highest between Raw, WR and WP)1037.9
Current highest rating achieved1253.5
Current floor (min rating allowed)753.5
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)±208.9
Current Raw change used (final)0.0
Projected new Raw rating1037.9
Projected new Weighed rating954.9
Projected new Weighted performance386.3
Projected new final Raw rating (if new WP > new Raw)1037.9
Projected new highest rating1253.5
Projected new floor753.5
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1037.9
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 rating1030.1
Current Weighted rating1030.1
Current Weighted performance386.3
Current official/published rating (highest between Raw, WR and WP)1030.1
Current highest rating achieved1265.6
Current floor (min rating allowed)765.6
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)±211.2
Current Raw change used (final)0.0
Projected new Raw rating1030.1
Projected new Weighed rating947.7
Projected new Weighted performance386.3
Projected new final Raw rating (if new WP > new Raw)1030.1
Projected new highest rating1265.6
Projected new floor765.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1030.1
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 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
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
8 JNW Club - Trinityhouse Randpark Ridge Open 2020 (D) 2020/02/22 2020/02/22 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1025.1 1012.5 Analysis
7 2019 South African Junior Team Championships (U12D) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 1.0 1106.5 1090.3 Analysis
6 Chessnuts Under 1350 Tournament 2019 (Pawns+Knights) 2019/08/24 2019/08/24 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1064.1 1035.9 Analysis
5 JHB Metro Closed 2019 (U12) 2019/07/27 2019/07/28 Johannesburg Metro (GJM) Standard 90 0.94 6 6 2.0 1126.5 1108.3 Analysis
4 JNW Club - Helpmekaar Kollege Open 2019 (D) 2019/07/06 2019/07/06 Johannesburg Metro (GJM) Standard 60 0.83 5 4 1.0 1126.5 1108.3 Analysis
3 JNW Club - Unika Scholar 2019 (Open) 2019/06/01 2019/06/01 Johannesburg Metro (GJM) Standard 60 0.83 5 4 0.0 1184.5 1180.3 Analysis
2 JNW Club - Charterhouse Open 2019 (D) 2019/04/13 2019/04/13 Johannesburg Metro (GJM) Standard 60 0.83 5 4 0.5 1253.5 1265.6 Analysis
1 JNW Club - Trinityhouse Little Falls Open 2019 (F) 2019/02/23 2019/02/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 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 40 13 2 25 14.0 35.0 -127.5 1140.1 1012.6
White 18 8 1 9 8.5 47.2 -23.6 1165.6 1142.0
Black 22 5 1 16 5.5 25.0 -212.5 1119.2 906.7
Standard All 40 13 2 25 14.0 35.0 -127.5 1140.1 1012.6
White 18 8 1 9 8.5 47.2 -23.6 1165.6 1142.0
Black 22 5 1 16 5.5 25.0 -212.5 1119.2 906.7
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 1100111813 Akula, K (Kishan) 2 1.5 1 1 0 75.0 1095.3 212.5 1307.8 View list
2 208073206 Fauconier, A (Amber) 2 0.0 0 0 2 0.0 1155.5 -425.0 730.5 View list
3 1120112314 Joubert, D (Daniel) 1 1.0 1 0 0 100.0 1064.1 425.0 1489.1 View list
4 1070132193 Danks, S (Stuart) 1 1.0 1 0 0 100.0 1025.1 425.0 1450.1 View list
5 1120116573 Ansley, T (Tristan) 1 1.0 1 0 0 100.0 1064.1 425.0 1489.1 View list
6 2120108315 Hoek, L (Lore) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 2110110089 Hanekom, C (Chenita) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 109082272 Mazibuko, T (Thembani) 1 1.0 1 0 0 100.0 1126.5 425.0 1551.5 View list
9 1110108346 Mcphail, M (Matthew) 1 1.0 1 0 0 100.0 1064.1 425.0 1489.1 View list
10 2090115664 Mhambi, N (Nomsa) 1 1.0 1 0 0 100.0 1126.5 425.0 1551.5 View list
11 1090096823 Muller, J (Jonathan) 1 1.0 1 0 0 100.0 1106.5 425.0 1531.5 View list
12 1100110075 Mupalala, K (Kenzo) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
13 1090110079 Spolander, N (Nicholas) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
14 1100132204 Yu, E (Ethan) 1 1.0 1 0 0 100.0 1025.1 425.0 1450.1 View list
15 1090102376 Machiwenyika, C (Christian) 1 0.5 0 1 0 50.0 1253.5 0.0 1253.5 View list
16 109076140 Jones, E (Edward) 1 0.0 0 0 1 0.0 1184.5 -425.0 759.5 View list
17 108073207 Horn, E (Evan) 1 0.0 0 0 1 0.0 1126.5 -425.0 701.5 View list
18 1080108306 Lynch, S (Stephen) 1 0.0 0 0 1 0.0 1253.5 -425.0 828.5 View list
19 1080132195 Letsae, U (Unathi) 1 0.0 0 0 1 0.0 1025.1 -425.0 600.1 View list
20 108071874 Kata, J (Jonathan) 1 0.0 0 0 1 0.0 1184.5 -425.0 759.5 View list