Player Page

Oberholster, G (Guilliaume Albertus J)
Dob: 2008/03/06 (U18)
Gender: Male
Chess SA id: 1080142230
FIDE id:
Region: ZF Mgcawu (NZF)
Citizen: RSA
Title(s):
Last active: 2024/02/24 (71 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 rating1383.3
Curent Weighted rating1355.5
Curent Weighted performance1285.8
Current official/published rating (highest between Raw, WR and WP)1383.3
Current floor (min rating allowed)915.2
Current highest rating achieved1415.2
Current K-factor32
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)±127.7
Current Raw change used (final)0.0
Projected new Raw rating1383.3
Projected new Weighed rating1360.5
Projected new Weighted performance1285.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1383.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1415.2
Projected new floor915.2
Projected new K-facor32
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 rating1380.6
Curent Weighted rating1356.7
Curent Weighted performance1288.3
Current official/published rating (highest between Raw, WR and WP)1380.6
Current floor (min rating allowed)919.4
Current highest rating achieved1419.4
Current K-factor32
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)±128.2
Current Raw change used (final)0.0
Projected new Raw rating1380.6
Projected new Weighed rating1361.2
Projected new Weighted performance1288.3
Projected new official/published rating (highest between new Raw, new WR and new WP)1380.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1419.4
Projected new floor919.4
Projected new K-facor32
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)700.0
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 floor700.0
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 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)700.0
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 floor700.0
Projected new K-facor36
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 3.0 1391.8 1389.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
9 Grey College Team Championship 2024 (B) 2024/02/23 2024/02/24 Mangaung (FMB) Standard 60 0.83 5 5 3.0 1391.8 1389.6 Analysis
8 Paarl Boys High Chess Festival 2023 (Elite Division) 2023/10/13 2023/10/14 Cape Winelands (WCW) Standard 60 0.83 6 5 1.5 1415.2 1419.4 Analysis
7 2023 Northern Cape Closed Chess Championships (U16 Open) 2023/08/25 2023/08/27 Frances Baard (NCF) Standard 92 0.94 5 5 4.0 1364.0 1366.3 Analysis
6 ZFM Trials 2023 (U15 Boys) 2023/06/03 2023/06/03 ZF Mgcawu (NZF) Standard 60 0.83 5 5 4.0 1309.7 1326.0 Analysis
5 Inter Regional Chess Championship 2023 (U16) 2023/05/19 2023/05/20 Mangaung (FMB) Standard 62 0.84 5 5 4.0 1250.4 1254.7 Analysis
4 Grey College Team Championship 2023 (B) 2023/02/03 2023/02/04 Mangaung (FMB) Standard 60 0.83 5 5 3.0 1253.4 1260.1 Analysis
3 Diamond Chess Academy Junior Championships 2022 (U15) 2022/08/06 2022/08/06 Frances Baard (NCF) Standard 62 0.84 5 5 3.5 1232.5 1237.4 Analysis
2 Northern Cape Provincial Schools Trials 2022 (U15 Boys) 2022/06/24 2022/06/24 Frances Baard (NCF) Standard 62 0.84 5 5 3.0 1229.5 1235.2 Analysis
1 ZFM Schools Trials 2022 (U15 Boys) 2022/05/28 2022/05/28 ZF Mgcawu (NZF) Standard 60 0.83 5 5 3.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 3 0 2 3.0 60.0 85.0 1257.7 1342.7
White 3 2 0 1 2.0 66.7 141.7 1279.4 1421.1
Black 2 1 0 1 1.0 50.0 0.0 1225.3 1225.3
Standard All 5 3 0 2 3.0 60.0 85.0 1257.7 1342.7
White 3 2 0 1 2.0 66.7 141.7 1279.4 1421.1
Black 2 1 0 1 1.0 50.0 0.0 1225.3 1225.3
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 45 28 3 14 29.5 65.6 132.2 1237.4 1369.6
White 21 14 1 6 14.5 69.0 161.9 1196.6 1358.5
Black 24 14 2 8 15.0 62.5 106.3 1273.0 1379.3
Standard All 45 28 3 14 29.5 65.6 132.2 1237.4 1369.6
White 21 14 1 6 14.5 69.0 161.9 1196.6 1358.5
Black 24 14 2 8 15.0 62.5 106.3 1273.0 1379.3
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 1080142224 Julius, V (Valentio Ryan) 2 2.0 2 0 0 100.0 1254.8 425.0 1679.8 View list
2 2080137944 Benson, J (Jefflene) 2 2.0 2 0 0 100.0 1241.5 425.0 1666.5 View list
3 208050682 Ahjum, KMK (Kristen) 1 1.0 1 0 0 100.0 1250.4 425.0 1675.4 View list
4 1070141320 Galoitsiwe, T (Tlhalefo) 1 1.0 1 0 0 100.0 1229.5 425.0 1654.5 View list
5 1080157806 Freeman, T (Tristan) 1 1.0 1 0 0 100.0 1309.7 425.0 1734.7 View list
6 2080149071 De Klerk, J (Jana) 1 1.0 1 0 0 100.0 1253.4 425.0 1678.4 View list
7 1080142220 Coetzee, E (Enrique) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 1090161429 Claasen, M (Matthew) 1 1.0 1 0 0 100.0 1364.0 425.0 1789.0 View list
9 1070142024 Chubisi, K (Kaelo) 1 1.0 1 0 0 100.0 1229.5 425.0 1654.5 View list
10 1090154839 Bezuidenhout, D (Dylan) 1 1.0 1 0 0 100.0 1250.4 425.0 1675.4 View list
11 1100191975 Berlin, T (Tristan) 1 1.0 1 0 0 100.0 1391.8 425.0 1816.8 View list
12 1080142033 Lobelo, R (Relesego) 1 1.0 1 0 0 100.0 1229.5 425.0 1654.5 View list
13 108091526 Lau, C (Callum) 1 1.0 1 0 0 100.0 1415.2 425.0 1840.2 View list
14 1080152804 Kritzinger, H (Henro) 1 1.0 1 0 0 100.0 1364.0 425.0 1789.0 View list
15 1070146176 Hawley, J (Juanro) 1 1.0 1 0 0 100.0 1253.4 425.0 1678.4 View list
16 1090191986 Grobler, E (Eric) 1 1.0 1 0 0 100.0 1391.8 425.0 1816.8 View list
17 1080142223 Green, J (Jordan) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
18 1090156109 Mahlangu, S (Sinenhlanhla) 1 1.0 1 0 0 100.0 1364.0 425.0 1789.0 View list
19 108084931 May, AD (Alrique Dominic) 1 1.0 1 0 0 100.0 1364.0 425.0 1789.0 View list
20 1070149101 Mopedi, K (Karabo) 1 1.0 1 0 0 100.0 1391.8 425.0 1816.8 View list