Player Page

Vorster, SPM (Stephanus)
Dob: 1969/10/16 (Adult)
Gender: Male
Chess SA id: 169042155
FIDE id: Vorster
Region: Bojanala Platina (NBR)
Citizen: RSA
Title(s):
Last active: 2024/05/05 (43 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 rating1687.2
Current Weighted rating1757.5
Current Weighted performance1441.8
Current official/published rating (highest between Raw, WR and WP)1757.5
Current highest rating achieved1820.4
Current floor (min rating allowed)1320.4
Current K-factor24
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)±82.8
Current Raw change used (final)0.0
Projected new Raw rating1687.2
Projected new Weighed rating1615.3
Projected new Weighted performance1441.8
Projected new final Raw rating (if new WP > new Raw)1687.2
Projected new highest rating1820.4
Projected new floor1320.4
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1687.2
Projected effective change (new Official - current Official)-70.3
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 rating1655.5
Current Weighted rating1742.5
Current Weighted performance1441.8
Current official/published rating (highest between Raw, WR and WP)1742.5
Current highest rating achieved1821.2
Current floor (min rating allowed)1321.2
Current K-factor24
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)±86.7
Current Raw change used (final)0.0
Projected new Raw rating1655.5
Projected new Weighed rating1601.0
Projected new Weighted performance1441.8
Projected new final Raw rating (if new WP > new Raw)1655.5
Projected new highest rating1821.2
Projected new floor1321.2
Projected new K-facor24
Projected new official/published rating (highest between new Raw, new WR and new WP)1655.5
Projected effective change (new Official - current Official)-87.0
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 rating1793.3
Current Weighted rating1793.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1793.3
Current highest rating achieved1793.3
Current floor (min rating allowed)1293.3
Current K-factor28
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)±71.2
Current Raw change used (final)0.0
Projected new Raw rating1793.3
Projected new Weighed rating1649.8
Projected new Weighted performance470.8
Projected new final Raw rating (if new WP > new Raw)1793.3
Projected new highest rating1793.3
Projected new floor1293.3
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1793.3
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 rating1789.0
Current Weighted rating1788.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1789.0
Current highest rating achieved1789.0
Current floor (min rating allowed)1289.0
Current K-factor28
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)±71.6
Current Raw change used (final)0.0
Projected new Raw rating1789.0
Projected new Weighed rating1645.3
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1789.0
Projected new floor1289.0
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1789.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Spartan Bishops Chess Championships 2024 (Seniors) 2024/05/04 2024/05/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.5 1691.4 1659.1 Analysis
2 NG Kerk Vanderbijlpark Suid 2024 (A+B) 2024/02/24 2024/02/24 Sedibeng (GSV) Standard 61 0.84 5 5 3.0 1709.7 1679.5 Analysis
1 2024 Piet Robbertse Open Chess Tournament (A) 2024/02/03 2024/02/04 Tshwane (GTP) Standard 90 0.94 5 4 0.0 1779.6 1752.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
34 Spartan Bishops Chess Championships 2024 (Seniors) 2024/05/04 2024/05/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.5 1691.4 1659.1 Analysis
33 NG Kerk Vanderbijlpark Suid 2024 (A+B) 2024/02/24 2024/02/24 Sedibeng (GSV) Standard 61 0.84 5 5 3.0 1709.7 1679.5 Analysis
32 2024 Piet Robbertse Open Chess Tournament (A) 2024/02/03 2024/02/04 Tshwane (GTP) Standard 90 0.94 5 4 0.0 1779.6 1752.2 Analysis
31 2023 Moja Chess Extravaganza (Prestige) 2023/09/30 2023/10/04 Frances Baard (NCF) Standard 120 1.00 9 9 4.5 1740.0 1730.8 Analysis
30 Chess Power House 2023 (A) 2023/08/19 2023/08/20 Johannesburg Metro (GJM) Standard 90 0.94 5 5 2.0 1792.3 1786.2 Analysis
29 Eureka Open 2023 (A) 2023/07/29 2023/07/29 Sedibeng (GSV) Standard 60 0.83 5 5 2.5 1820.4 1821.2 Analysis
28 Boksburg Chess Club Rapid 2023 2023/06/20 2023/06/20 Ekurhuleni (GE) Rapid 30 0.60 5 1 1.0 1820.3 1793.0 Analysis
27 Chess Power House 2nd RR 2022 (A) 2022/08/20 2022/08/21 Johannesburg Metro (GJM) Standard 90 0.94 5 5 2.5 1745.4 1742.8 Analysis
26 2022 Alekhine Open (A) 2022/08/13 2022/08/14 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1745.4 1742.8 Analysis
25 JMC Womens Day 2022 (FIDE Open) 2022/08/06 2022/08/09 Johannesburg Metro (GJM) Standard 120 1.00 6 6 4.0 1745.4 1742.8 Analysis
24 Chessheroes Youth Day 2022 (A1) 2022/06/16 2022/06/18 Johannesburg Metro (GJM) Standard 120 1.00 5 4 2.5 1726.6 1724.0 Analysis
23 Moja Open 2022 (Prestige) 2022/03/19 2022/03/22 Frances Baard (NCF) Standard 120 1.00 7 7 3.5 1706.4 1703.3 Analysis
22 Ekurhuleni Chess Open 2022 (A) 2022/01/07 2022/01/09 Ekurhuleni (GE) Standard 90 0.94 7 7 4.0 1734.3 1732.4 Analysis
21 NC Open 2021 (A) 2021/10/22 2021/10/24 Frances Baard (NCF) Standard 120 1.00 5 5 4.0 1716.4 1711.7 Analysis
20 Pinnacle College Waterfall Open (Premier) 2021/10/02 2021/10/03 Johannesburg Metro (GJM) Standard 90 0.94 6 6 2.5 1716.4 1711.7 Analysis
19 2021 Gauteng North Open Tournament (A) 2021/08/28 2021/08/29 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1733.2 1726.5 Analysis
18 2021 Alekhine Open (A) 2021/08/14 2021/08/15 Tshwane (GTP) Standard 90 0.94 5 5 2.5 1733.2 1726.5 Analysis
17 Ekurhuleni Chess Chessa Open 2021 (Elite) 2021/03/27 2021/03/28 Ekurhuleni (GE) Standard 90 0.94 5 5 3.0 1702.4 1689.8 Analysis
16 Ekurhuleni Chess Kempton Park Open 2020 (A) 2020/11/21 2020/11/21 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1736.1 1727.0 Analysis
15 Chess Power House End of Year Rapid 2019 (A) 2019/12/16 2019/12/16 Johannesburg Metro (GJM) Rapid 15 0.39 7 7 5.5 1718.5 1751.6 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 14 7 1 6 7.5 53.6 30.4 1418.9 1449.2
White 8 6 0 2 6.0 75.0 212.5 1373.9 1586.4
Black 6 1 1 4 1.5 25.0 -212.5 1478.7 1266.2
Standard All 14 7 1 6 7.5 53.6 30.4 1418.9 1449.2
White 8 6 0 2 6.0 75.0 212.5 1373.9 1586.4
Black 6 1 1 4 1.5 25.0 -212.5 1478.7 1266.2
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 179 83 39 57 102.5 57.3 61.7 1615.9 1677.6
White 90 47 17 26 55.5 61.7 99.2 1601.1 1700.3
Black 89 36 22 31 47.0 52.8 23.9 1630.7 1654.6
Standard All 158 66 37 55 84.5 53.5 29.6 1650.5 1680.1
White 79 39 16 24 47.0 59.5 80.7 1639.3 1720.0
Black 79 27 21 31 37.5 47.5 -21.5 1661.8 1640.2
Rapid All 21 17 2 2 18.0 85.7 303.6 1355.0 1658.5
White 11 8 1 2 8.5 77.3 231.8 1327.0 1558.8
Black 10 9 1 0 9.5 95.0 382.5 1385.8 1768.3
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 103007373 Dinham, J (James) 5 3.0 2 2 1 60.0 1722.4 85.0 1807.4 View list
2 187025727 Mpya, TM (Tshediso) 5 1.5 1 1 3 30.0 1739.7 -170.0 1569.7 View list
3 182025885 Mthunzi, B (Brighton) 5 1.5 1 1 3 30.0 1717.7 -170.0 1547.7 View list
4 194073176 Chueu, C (Calvin) 4 2.5 2 1 1 62.5 1725.5 106.3 1831.8 View list
5 1070104078 Price, DR (Daelen) 4 2.5 1 3 0 62.5 1740.6 106.3 1846.8 View list
6 104069713 Vorster, T (Tyrone) 4 2.0 0 4 0 50.0 1771.4 0.0 1771.4 View list
7 104053107 Govender, Y (Yaduvir) 4 1.5 0 3 1 37.5 1716.3 -106.3 1610.0 View list
8 103046660 Schroeder, D (Daniel) 3 1.0 1 0 2 33.3 1725.4 -141.7 1583.7 View list
9 101023373 Mlahleki, V (Vusimuzi) 3 0.5 0 1 2 16.7 1741.3 -283.3 1458.0 View list
10 191012376 Hercules, BV (Benjamin) 3 0.0 0 0 3 0.0 1711.1 -425.0 1286.1 View list
11 105058538 Smit, D (Devon) 3 0.0 0 0 3 0.0 1733.4 -425.0 1308.4 View list
12 194019178 Madiba, CM (Carpediem) 2 2.0 2 0 0 100.0 1717.8 425.0 2142.8 View list
13 1100103439 Mungal, E (Ethan) 2 2.0 2 0 0 100.0 1725.3 425.0 2150.3 View list
14 108076196 Potgieter, E (Edward) 2 2.0 2 0 0 100.0 1709.9 425.0 2134.9 View list
15 106053297 Govender, S (Shevern) 2 1.5 1 1 0 75.0 1707.4 212.5 1919.9 View list
16 107069948 Jones, W (William) 2 1.5 1 1 0 75.0 1739.3 212.5 1951.8 View list
17 182017839 Lesuthu, KM (Kali) 2 1.5 1 1 0 75.0 1715.3 212.5 1927.8 View list
18 173022117 Mbedza, R (Richard) 2 1.0 1 0 1 50.0 1727.6 0.0 1727.6 View list
19 162027530 Ngubeni, JM (Jackie) 2 1.0 1 0 1 50.0 1800.0 0.0 1800.0 View list
20 194002691 Bornheim, C (Craig) 2 0.5 0 1 1 25.0 1714.6 -212.5 1502.1 View list