Player Page

Van Der Westhuizen, PJ (Petrus)
Dob: 2002/03/18 (Adult)
Gender: Male
Chess SA id: 102039624
FIDE id:
Region: Bojanala Platina (NBR)
Citizen: RSA
Title(s):
Last active: 2022/10/01 (596 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 rating1518.3
Curent Weighted rating1512.0
Curent Weighted performance695.8
Current official/published rating (highest between Raw, WR and WP)1518.3
Current floor (min rating allowed)1053.2
Current highest rating achieved1553.2
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)±105.4
Current Raw change used (final)0.0
Projected new Raw rating1518.3
Projected new Weighed rating1512.5
Projected new Weighted performance695.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1518.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1553.2
Projected new floor1053.2
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 rating1513.6
Curent Weighted rating1514.1
Curent Weighted performance696.2
Current official/published rating (highest between Raw, WR and WP)1514.1
Current floor (min rating allowed)1058.8
Current highest rating achieved1558.8
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)±106.1
Current Raw change used (final)0.0
Projected new Raw rating1513.6
Projected new Weighed rating1513.9
Projected new Weighted performance696.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1513.9
Projected effective change (new Official - current Official)-0.2
Projected new highest rating1558.8
Projected new floor1058.8
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 rating1352.1
Curent Weighted rating1344.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1352.1
Current floor (min rating allowed)852.1
Current highest rating achieved1352.1
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)±133.5
Current Raw change used (final)0.0
Projected new Raw rating1352.1
Projected new Weighed rating1345.1
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1352.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1352.1
Projected new floor852.1
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 rating1257.7
Curent Weighted rating1257.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1257.7
Current floor (min rating allowed)852.1
Current highest rating achieved1314.0
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)±152.7
Current Raw change used (final)0.0
Projected new Raw rating1257.7
Projected new Weighed rating1257.7
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1257.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1314.0
Projected new floor852.1
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
25 2022 Western Province Club League (C) 2022/08/20 2022/10/01 Cape Town (WCT) Standard 120 1.00 11 1 0.0 1522.6 1528.3 Analysis
24 Laerskool Proteapark 2020 (A) 2020/02/29 2020/02/29 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1520.5 1526.4 Analysis
23 2019 Wild Card Chess Championship (U18 Open) 2020/01/09 2020/01/12 4 Knights (4K) Standard 120 1.00 7 7 4.5 1540.7 1545.0 Analysis
22 2019 South African Juior Blitz Championship (A) 2020/01/05 2020/01/05 4 Knights (4K) Blitz 5 0.18 7 2 0.0 1540.7 1293.7 Analysis
21 2019 South African Junior Team Championships (U18C) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 6 3.5 1540.7 1545.0 Analysis
20 2019 African Youth Chess Championship 2019/12/16 2019/12/21 Namibia (NAM) Standard 120 1.00 9 9 4.5 1553.2 1558.8 Analysis
19 Inter Region 2019 (U18 Open) 2019/10/19 2019/10/19 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.5 1541.0 1544.7 Analysis
18 Lebone II 2019 (Open) 2019/09/14 2019/09/14 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.5 1547.4 1553.7 Analysis
17 Laerskool Rustenburg 2019 (U18) 2019/08/17 2019/08/17 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1520.6 1521.1 Analysis
16 Hoerskool Rustenburg Skaak 2019 (U18) 2019/04/13 2019/04/13 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.5 1525.4 1526.5 Analysis
15 Rustenburg Noord Primary Tournament 2019 (A) 2019/02/09 2019/02/09 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1399.3 1412.3 Analysis
14 Hoerskool Brits Tournament 2019 (A) 2019/02/09 2019/02/09 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1399.3 1412.3 Analysis
13 Fields College Open 2019 (Open) 2019/02/02 2019/02/02 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.5 1399.3 1412.3 Analysis
12 South African Junior Team Championships 2018 (U18B) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 3.5 1394.6 1411.7 Analysis
11 Bojanala Regionals 2018 (U18+U20) 2018/09/15 2018/09/15 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1350.1 1360.2 Analysis
10 Lebone II Chess 2018 (U18) 2018/09/01 2018/09/01 Cape Town (WCT) Standard 60 0.83 5 5 4.5 1350.1 1360.2 Analysis
9 Laerskool Brits Tournament 2018 (U18) 2018/08/04 2018/08/04 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.5 1322.9 1325.6 Analysis
8 Hoërskool Frikkie Meyer 2018 (A) 2018/07/21 2018/07/21 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 1356.7 1367.0 Analysis
7 Laerskool Proteapark Chess 2018 (A) 2018/05/19 2018/05/19 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1343.6 1351.2 Analysis
6 Inter Regional 2018 (U18 Team) 2018/05/04 2018/05/05 Frances Baard (NCF) Standard 60 0.83 5 5 4.0 1343.6 1351.2 Analysis
12
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 138 77 22 39 88.0 63.8 117.0 1309.4 1426.4
White 66 42 8 16 46.0 69.7 167.4 1288.7 1456.1
Black 72 35 14 23 42.0 58.3 70.8 1328.4 1399.2
Standard All 129 76 21 32 86.5 67.1 145.0 1296.5 1441.5
White 62 42 8 12 46.0 74.2 205.6 1263.8 1469.5
Black 67 34 13 20 40.5 60.4 88.8 1326.8 1415.6
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 9 1 1 7 1.5 16.7 -283.3 1494.0 1210.6
White 4 0 0 4 0.0 0.0 -425.0 1674.6 1249.6
Black 5 1 1 3 1.5 30.0 -170.0 1349.4 1179.4
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 102064319 Esterhuizen, WJ (Willem Johannes) 5 5.0 5 0 0 100.0 1432.2 425.0 1857.2 View list
2 102035132 Smit, CM (Carlo) 5 5.0 5 0 0 100.0 1419.6 425.0 1844.6 View list
3 103045122 Fourie, H (Hendre) 3 3.0 3 0 0 100.0 1536.3 425.0 1961.3 View list
4 102021248 Maseng, GT (Gomolemo) 3 3.0 3 0 0 100.0 1357.4 425.0 1782.4 View list
5 102017803 Leseyane, L (Lefa) 3 2.5 2 1 0 83.3 1416.0 283.3 1699.3 View list
6 103024490 Moletsane, OP (Oreratile) 3 2.5 2 1 0 83.3 1522.2 283.3 1805.5 View list
7 102023635 Modirwa, O (Ofentse) 3 2.0 2 0 1 66.7 1422.1 141.7 1563.8 View list
8 105050597 Lefyedi, T (Thatego) 3 1.5 1 1 1 50.0 1380.7 0.0 1380.7 View list
9 178049639 Sebowe, S (Stanley) 3 0.5 0 1 2 16.7 1366.5 -283.3 1083.2 View list
10 100086159 Janse Van Vuuren, AJ (Aj) 2 2.0 2 0 0 100.0 1350.2 425.0 1775.2 View list
11 102019052 Mabuse, K (Katlego) 2 2.0 2 0 0 100.0 1315.3 425.0 1740.3 View list
12 103020219 Malila, CN (Cyril) 2 2.0 2 0 0 100.0 1523.0 425.0 1948.0 View list
13 107086171 Masike, O (Olerato) 2 2.0 2 0 0 100.0 1378.0 425.0 1803.0 View list
14 102024289 Mokotedi, K (Kabelo) 2 2.0 2 0 0 100.0 1432.0 425.0 1857.0 View list
15 1020099315 Van Zyl, D (Daniel) 2 2.0 2 0 0 100.0 1445.5 425.0 1870.5 View list
16 101013058 Human, J (Johan) 2 1.5 1 1 0 75.0 1473.3 212.5 1685.8 View list
17 103045416 Malope, M (Modupi) 2 1.5 1 1 0 75.0 1440.3 212.5 1652.8 View list
18 197068679 Mphako, S (Serame) 2 1.0 1 0 1 50.0 1332.2 0.0 1332.2 View list
19 101075140 Manale, R (Remy) 2 1.0 0 2 0 50.0 1336.5 0.0 1336.5 View list
20 103046563 Raubenheimer, D (Dian) 2 1.0 0 2 0 50.0 1339.8 0.0 1339.8 View list