Player Page

Piek, S (Sebastian)
Dob: 2006/06/26 (U20)
Gender: Male
Chess SA id: 106093982
FIDE id:
Region: Mangaung (FMB)
Citizen: RSA
Title(s):
Last active: 2023/05/20 (366 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 rating1210.2
Curent Weighted rating1210.7
Curent Weighted performance1007.9
Current official/published rating (highest between Raw, WR and WP)1210.7
Current floor (min rating allowed)722.1
Current highest rating achieved1222.1
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)±163.4
Current Raw change used (final)0.0
Projected new Raw rating1210.2
Projected new Weighed rating1210.6
Projected new Weighted performance1007.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1210.6
Projected effective change (new Official - current Official)-0.0
Projected new highest rating1222.1
Projected new floor722.1
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 rating1141.6
Curent Weighted rating1133.9
Curent Weighted performance882.9
Current official/published rating (highest between Raw, WR and WP)1141.6
Current floor (min rating allowed)641.6
Current highest rating achieved1141.6
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)±180.2
Current Raw change used (final)0.0
Projected new Raw rating1141.6
Projected new Weighed rating1135.6
Projected new Weighted performance882.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1141.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1141.6
Projected new floor641.6
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 rating1182.7
Curent Weighted rating1182.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1182.9
Current floor (min rating allowed)753.6
Current highest rating achieved1253.6
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)±170.0
Current Raw change used (final)0.0
Projected new Raw rating1182.7
Projected new Weighed rating1182.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1182.7
Projected effective change (new Official - current Official)-0.2
Projected new highest rating1253.6
Projected new floor753.6
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 rating1242.0
Curent Weighted rating1242.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1242.0
Current floor (min rating allowed)753.6
Current highest rating achieved1242.0
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)±156.2
Current Raw change used (final)0.0
Projected new Raw rating1242.0
Projected new Weighed rating1242.0
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1242.0
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1242.0
Projected new floor753.6
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
10 Inter Regional Chess Championship 2023 (U18) 2023/05/19 2023/05/20 Mangaung (FMB) Standard 62 0.84 5 5 2.5 1207.5 1122.4 Analysis
9 Grey College Team Championship 2023 (A) 2023/02/03 2023/02/04 Mangaung (FMB) Standard 60 0.83 5 5 2.0 1222.1 1122.4 Analysis
8 2022 South African Junior Team Chess Championships (U18 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 7 2.5 1215.3 1072.4 Analysis
7 Mangaung Metro Chess 13 August 2022 (B) 2022/08/13 2022/08/13 Mangaung (FMB) Rapid 32 0.63 5 5 3.5 1187.0 1171.5 Analysis
6 Mangaung Metro Chess 30 July 2022 (B) 2022/07/30 2022/07/30 Mangaung (FMB) Rapid 32 0.63 5 5 2.0 1204.7 1253.6 Analysis
5 Smart Chess Blitz 2022 (Juniors) 2022/05/07 2022/05/07 Mangaung (FMB) Blitz 7 0.23 7 6 5.0 1184.4 1200.0 Analysis
4 Mangaung Metro Chess 22 January 2022 (B) 2022/01/22 2022/01/22 Mangaung (FMB) Rapid 32 0.63 5 5 4.0 1132.0 1221.6 Analysis
3 Mangaung Metro Chess 28 August 2021 (B) 2021/08/28 2021/08/28 Mangaung (FMB) Rapid 25 0.54 5 5 4.0 1093.6 1200.0 Analysis
2 Mangaung Metro Chess February 2020 (C) 2020/02/21 2020/02/22 Mangaung (FMB) Standard 62 0.84 5 5 1.0 1129.6 1113.6 Analysis
1 2018 Gauteng League Final (U13) 2018/08/24 2018/08/24 Tshwane (GTP) 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 53 26 5 22 28.5 53.8 32.1 1197.9 1229.9
White 27 11 2 14 12.0 44.4 -47.2 1198.9 1151.6
Black 26 15 3 8 16.5 63.5 114.4 1196.8 1311.2
Standard All 27 8 4 15 10.0 37.0 -110.2 1200.5 1090.3
White 14 4 2 8 5.0 35.7 -121.4 1216.6 1095.1
Black 13 4 2 7 5.0 38.5 -98.1 1183.2 1085.1
Rapid All 20 13 1 6 13.5 67.5 148.8 1189.1 1337.9
White 10 5 0 5 5.0 50.0 0.0 1170.8 1170.8
Black 10 8 1 1 8.5 85.0 297.5 1207.4 1504.9
Blitz All 6 5 0 1 5.0 83.3 283.3 1215.0 1498.3
White 3 2 0 1 2.0 66.7 141.7 1209.6 1351.2
Black 3 3 0 0 3.0 100.0 425.0 1220.5 1645.5
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1100098157 De Villiers, H (Hj) 3 1.0 1 0 2 33.3 1148.7 -141.7 1007.0 View list
2 109086205 Lottering, JG (Gerhard) 2 2.0 2 0 0 100.0 1195.8 425.0 1620.8 View list
3 1090117637 Els, C (Christiaan) 2 1.5 1 1 0 75.0 1140.3 212.5 1352.8 View list
4 108069747 Melville, J (Jason) 2 0.0 0 0 2 0.0 1195.8 -425.0 770.8 View list
5 1060111831 Mitchell, V (Vanadium) 2 0.0 0 0 2 0.0 1112.8 -425.0 687.8 View list
6 107053254 Alexander, D (Darrion) 1 1.0 1 0 0 100.0 1222.1 425.0 1647.1 View list
7 210086184 Beelders, K (Kyra) 1 1.0 1 0 0 100.0 1184.4 425.0 1609.4 View list
8 110086186 Boje, E (Ewald) 1 1.0 1 0 0 100.0 1184.4 425.0 1609.4 View list
9 1050136970 Jansen, R (Rikus) 1 1.0 1 0 0 100.0 1222.1 425.0 1647.1 View list
10 1120106778 Herbst, W (Wilhelm) 1 1.0 1 0 0 100.0 1184.4 425.0 1609.4 View list
11 207084887 Herbst, D (Danielle) 1 1.0 1 0 0 100.0 1204.7 425.0 1629.7 View list
12 107069733 Grace, G (Garran) 1 1.0 1 0 0 100.0 1132.0 425.0 1557.0 View list
13 2070096172 Leeuw, U (Unathi) 1 1.0 1 0 0 100.0 1207.5 425.0 1632.5 View list
14 107064251 Kriel, R (Ruan) 1 1.0 1 0 0 100.0 1093.6 425.0 1518.6 View list
15 105014941 Karrani, Z (Ziwan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
16 1070136315 Mafantiri, T (Thando) 1 1.0 1 0 0 100.0 1132.0 425.0 1557.0 View list
17 1110111849 Maritz, J (Jandre) 1 1.0 1 0 0 100.0 1184.4 425.0 1609.4 View list
18 2050105427 Mogorosie, L (Lindsay) 1 1.0 1 0 0 100.0 1132.0 425.0 1557.0 View list
19 107092295 Mokoena, K (Kabelo) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
20 2050134118 Motsokobi, K (Keabetswe) 1 1.0 1 0 0 100.0 1093.6 425.0 1518.6 View list