Player Page

De Villiers, OA (Ockert)
Dob: 1997/10/15 (Adult)
Gender: Male
Chess SA id: 197006856
FIDE id:
Region: Sedibeng (GSV)
Citizen: RSA
Title(s): PA
Last active: 2024/04/27 (58 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 rating1668.7
Current Weighted rating1652.2
Current Weighted performance1585.9
Current official/published rating (highest between Raw, WR and WP)1668.7
Current highest rating achieved1763.3
Current floor (min rating allowed)1263.3
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)±85.0
Current Raw change used (final)0.0
Projected new Raw rating1668.7
Projected new Weighed rating1520.2
Projected new Weighted performance1585.9
Projected new final Raw rating (if new WP > new Raw)1668.7
Projected new highest rating1763.3
Projected new floor1263.3
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1668.7
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 rating1672.8
Current Weighted rating1650.5
Current Weighted performance1585.9
Current official/published rating (highest between Raw, WR and WP)1672.8
Current highest rating achieved1764.9
Current floor (min rating allowed)1264.9
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)±84.5
Current Raw change used (final)0.0
Projected new Raw rating1672.8
Projected new Weighed rating1518.6
Projected new Weighted performance1585.9
Projected new final Raw rating (if new WP > new Raw)1672.8
Projected new highest rating1764.9
Projected new floor1264.9
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1672.8
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 rating1563.0
Current Weighted rating1563.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1563.0
Current highest rating achieved1608.0
Current floor (min rating allowed)1108.0
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)±98.9
Current Raw change used (final)0.0
Projected new Raw rating1563.0
Projected new Weighed rating1438.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1608.0
Projected new floor1108.0
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1563.0
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 rating1575.3
Current Weighted rating1575.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1575.3
Current highest rating achieved1608.0
Current floor (min rating allowed)1108.0
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)±97.1
Current Raw change used (final)0.0
Projected new Raw rating1575.3
Projected new Weighed rating1449.3
Projected new Weighted performance455.7
Projected new final Raw rating (if new WP > new Raw)1575.3
Projected new highest rating1608.0
Projected new floor1108.0
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1575.3
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 NABOOMSPAR Open Chess Tournament 2024 (Open) 2024/04/27 2024/04/27 Waterberg (LWM) Standard 60 0.83 5 5 5.0 1637.6 1633.3 Analysis
1 2024 Gauteng Inter-Region Chess Championship (Adult A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 1.5 1622.6 1620.1 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
34 NABOOMSPAR Open Chess Tournament 2024 (Open) 2024/04/27 2024/04/27 Waterberg (LWM) Standard 60 0.83 5 5 5.0 1637.6 1633.3 Analysis
33 2024 Gauteng Inter-Region Chess Championship (Adult A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 1.5 1622.6 1620.1 Analysis
32 2023 USSA Championships (Open) 2023/12/04 2023/12/08 Ethekwini (KED) Standard 120 1.00 9 5 3.0 1660.1 1658.2 Analysis
31 2023 Elize Steenkamp Open Tournament (A) 2023/06/16 2023/06/17 Tshwane (GTP) Standard 90 0.94 6 3 0.5 1687.5 1685.9 Analysis
30 DR Kenneth Kaunda Curro 2023 (A+B) 2023/04/22 2023/04/22 Dr Kenneth Kaunda (NWP) Standard 60 0.83 5 5 4.5 1673.3 1668.8 Analysis
29 Ekurhuleni Springs Open 4 March 2023 (A) 2023/03/04 2023/03/04 Ekurhuleni (GE) Standard 62 0.84 5 5 4.5 1653.1 1645.3 Analysis
28 Heidelberg Open 2023 (A) 2023/02/04 2023/02/04 Sedibeng (GSV) Standard 60 0.83 5 5 3.0 1672.2 1668.0 Analysis
27 Laerkool Midvaal Chess Open 2023 (A) 2023/01/28 2023/01/28 Sedibeng (GSV) Standard 61 0.83 5 5 3.5 1627.9 1628.2 Analysis
26 Cape Town Masters Challenge 2023 (Open) 2023/01/04 2023/01/08 Cape Town (WCT) Standard 120 1.00 5 5 4.5 1627.9 1628.2 Analysis
25 Dr Peter Hangelbroek Open 2022 (A+B) 2022/10/29 2022/10/29 Sedibeng (GSV) Standard 60 0.83 5 5 5.0 1618.2 1614.5 Analysis
24 FIDE at The King`s Gate 2.0 2022 (Prestige) 2022/10/21 2022/10/23 Bojanala Platina (NBR) Standard 92 0.94 5 4 1.0 1618.2 1614.5 Analysis
23 Chess Power House 2nd RR 2022 (B) 2022/08/20 2022/08/21 Johannesburg Metro (GJM) Standard 90 0.94 5 5 0.0 1664.8 1663.8 Analysis
22 South African Open 2022 (Championship) 2022/07/09 2022/07/17 Cape Town (WCT) Standard 120 1.00 11 11 4.5 1733.4 1736.0 Analysis
21 2022 Lubowski Open Tournament (A) 2022/04/08 2022/04/10 Tshwane (GTP) Standard 90 0.94 6 6 2.5 1735.2 1737.7 Analysis
20 Chess Power House Fide RR 2022 (A) 2022/03/05 2022/03/05 Johannesburg Metro (GJM) Standard 90 0.94 5 5 1.0 1752.8 1753.7 Analysis
19 JMC @ Pinnacle 2022 (Premier) 2022/02/19 2022/02/20 Johannesburg Metro (GJM) Standard 90 0.94 5 5 3.0 1745.4 1745.6 Analysis
18 Heidelberg Open 2022 (A) 2022/02/05 2022/02/05 Sedibeng (GSV) Standard 61 0.83 5 5 2.5 1745.4 1745.6 Analysis
17 Mabaleng Chess Open 2021 (A) 2021/11/27 2021/11/27 Sedibeng (GSV) Standard 61 0.83 5 5 3.0 1763.3 1764.9 Analysis
16 2021 Alekhine Open (A) 2021/08/14 2021/08/15 Tshwane (GTP) Standard 90 0.94 5 5 2.5 1752.2 1753.4 Analysis
15 Heidelberg Open 2020 (Prestige) 2020/01/31 2020/02/02 Sedibeng (GSV) Standard 120 1.00 5 5 3.5 1698.7 1700.2 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 6 1 3 6.5 65.0 127.5 1699.6 1827.1
White 5 3 0 2 3.0 60.0 85.0 1714.5 1799.5
Black 5 3 1 1 3.5 70.0 170.0 1684.7 1854.7
Standard All 10 6 1 3 6.5 65.0 127.5 1699.6 1827.1
White 5 3 0 2 3.0 60.0 85.0 1714.5 1799.5
Black 5 3 1 1 3.5 70.0 170.0 1684.7 1854.7
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
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 187 92 28 67 106.0 56.7 56.8 1609.3 1666.1
White 92 45 10 37 50.0 54.3 37.0 1625.9 1662.8
Black 95 47 18 30 56.0 58.9 76.1 1593.3 1669.3
Standard All 165 79 28 58 93.0 56.4 54.1 1616.7 1670.8
White 82 39 10 33 44.0 53.7 31.1 1640.9 1672.0
Black 83 40 18 25 49.0 59.0 76.8 1592.8 1669.6
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 22 13 0 9 13.0 59.1 77.3 1553.9 1631.2
White 10 6 0 4 6.0 60.0 85.0 1502.5 1587.5
Black 12 7 0 5 7.0 58.3 70.8 1596.8 1667.7
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 182025885 Mthunzi, B (Brighton) 5 0.0 0 0 5 0.0 1670.6 -425.0 1245.6 View list
2 107092639 Simpson, M (Michael) 4 1.0 1 0 3 25.0 1733.0 -212.5 1520.5 View list
3 199021497 Masiya, MA (Mfundo) 4 0.5 0 1 3 12.5 1642.2 -318.8 1323.5 View list
4 172030853 Pretorius, HS (Hendrik) 3 3.0 3 0 0 100.0 1639.4 425.0 2064.4 View list
5 172037577 Theron, A (Andre) 3 3.0 3 0 0 100.0 1655.8 425.0 2080.8 View list
6 106053297 Govender, S (Shevern) 3 1.5 1 1 1 50.0 1620.8 0.0 1620.8 View list
7 105058538 Smit, D (Devon) 3 1.5 1 1 1 50.0 1627.4 0.0 1627.4 View list
8 184016728 Makhosonke, KM (Kuhlase) 3 0.5 0 1 2 16.7 1727.0 -283.3 1443.6 View list
9 189038287 Tshetlo, T (Tshepo) 3 0.0 0 0 3 0.0 1594.0 -425.0 1169.0 View list
10 201044679 Dinham, M (Megan) 2 2.0 2 0 0 100.0 1646.0 425.0 2071.1 View list
11 169042155 Vorster, SPM (Stephanus) 2 2.0 2 0 0 100.0 1738.9 425.0 2163.9 View list
12 109069454 Sathish, A (Abinavah) 2 1.5 1 1 0 75.0 1743.7 212.5 1956.2 View list
13 165037390 Tenji, S (Sasa) 2 1.5 1 1 0 75.0 1671.6 212.5 1884.1 View list
14 103007373 Dinham, J (James) 2 1.0 1 0 1 50.0 1558.5 0.0 1558.5 View list
15 197064028 Kheswa, I (Itumeleng) 2 0.5 0 1 1 25.0 1738.9 -212.5 1526.4 View list
16 197084822 Mathebula, X (Xolani Cebo) 2 0.5 0 1 1 25.0 1560.7 -212.5 1348.2 View list
17 187025727 Mpya, TM (Tshediso) 2 0.5 0 1 1 25.0 1695.3 -212.5 1482.8 View list
18 182004314 Cawdery, DJ (Daniel) 2 0.0 0 0 2 0.0 1654.1 -425.0 1229.1 View list
19 104053107 Govender, Y (Yaduvir) 2 0.0 0 0 2 0.0 1740.0 -425.0 1315.0 View list
20 182017839 Lesuthu, KM (Kali) 2 0.0 0 0 2 0.0 1661.7 -425.0 1236.7 View list