Player Page

Botha, J (Johannes Cornelis)
Dob: 2011/06/23 (U14)
Gender: Male
Chess SA id: 1110136394
FIDE id:
Region: Bojanala Platina (NBR)
Citizen: RSA
Title(s):
Last active: 2024/10/12 (40 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 rating1567.0
Current Weighted rating1474.0
Current Weighted performance1509.7
Current official/published rating (highest between Raw, WR and WP)1567.0
Current highest rating achieved1682.2
Current floor (min rating allowed)1182.2
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)±98.3
Current Raw change used (final)0.0
Projected new Raw rating1567.0
Projected new Weighed rating1358.4
Projected new Weighted performance1509.7
Projected new final Raw rating (if new WP > new Raw)1567.0
Projected new highest rating1682.2
Projected new floor1182.2
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1567.0
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 rating1558.1
Current Weighted rating1467.0
Current Weighted performance1509.7
Current official/published rating (highest between Raw, WR and WP)1558.1
Current highest rating achieved1676.0
Current floor (min rating allowed)1176.0
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)±99.6
Current Raw change used (final)0.0
Projected new Raw rating1558.1
Projected new Weighed rating1351.9
Projected new Weighted performance1509.7
Projected new final Raw rating (if new WP > new Raw)1558.1
Projected new highest rating1676.0
Projected new floor1176.0
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1558.1
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 rating1303.9
Current Weighted rating1212.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1303.9
Current highest rating achieved1303.9
Current floor (min rating allowed)803.9
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)±143.0
Current Raw change used (final)0.0
Projected new Raw rating1303.9
Projected new Weighed rating1116.4
Projected new Weighted performance1141.1
Projected new final Raw rating (if new WP > new Raw)1303.9
Projected new highest rating1303.9
Projected new floor803.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1303.9
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 rating1201.6
Current Weighted rating1201.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1201.6
Current highest rating achieved1201.6
Current floor (min rating allowed)701.6
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)±165.4
Current Raw change used (final)0.0
Projected new Raw rating1201.6
Projected new Weighed rating1105.2
Projected new Weighted performance369.3
Projected new final Raw rating (if new WP > new Raw)1201.6
Projected new highest rating1201.6
Projected new floor701.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1201.6
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
19 Bojanala's Circuit Championships 4 of 4 204 (U16) 2024/10/12 2024/10/12 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.5 1586.5 1582.2 Analysis
18 Bojanala's Battle In The Kloof 2024 (Queens) 2024/09/21 2024/09/21 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1549.5 1524.5 Analysis
17 Kings Gambit Chess Open 14 Sept 2024 (C) 2024/09/14 2024/09/14 Sedibeng (GSV) Standard 60 0.83 5 5 5.0 1549.5 1524.5 Analysis
16 JCC Khelo India 1st Annual Chess Tournament 2024 (D) 2024/08/31 2024/08/31 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.5 1549.5 1524.5 Analysis
15 Bojanala's FIDE In The Sparkling Waters 2024 (Rooks) 2024/08/16 2024/08/18 Bojanala Platina (NBR) Standard 120 1.00 6 6 4.0 1560.0 1544.9 Analysis
14 Bojanala's Kings & Queens Rapid and Doubles 2024 (Open) 2024/08/10 2024/08/10 Bojanala Platina (NBR) Rapid 15 0.39 7 7 5.0 1560.0 1234.4 Analysis
13 Incognito Invitational 2024 (A) 2024/07/21 2024/07/21 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1627.8 1611.3 Analysis
12 Bojanala's Clash Of Schools 2024 (U13) 2024/07/20 2024/07/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1627.8 1611.3 Analysis
11 JMC NG Weltevreden Church 2024 2024/06/29 2024/06/29 Johannesburg Metro (GJM) Rapid 15 0.39 7 6 3.5 1627.8 1176.4 Analysis
10 Bojanala Circuit Championship 2 of 4 2024 (U16) 2024/06/15 2024/06/15 Bojanala Platina (NBR) Standard 60 0.83 5 4 1.0 1682.2 1676.0 Analysis
9 Bojanala Circuit Championship 1 of 4 2024 (U14) 2024/05/25 2024/05/25 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1566.2 1563.9 Analysis
8 Schoemies' Kwaggarus Chess Getaway 2024 (Senior) 2024/05/18 2024/05/18 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1566.2 1563.9 Analysis
7 Spartan Bishops Chess Championships 2024 (Knights) 2024/05/04 2024/05/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1566.2 1563.9 Analysis
6 2024 Milos Ristic Open Chess Tournament (U14) 2024/04/27 2024/04/27 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1398.4 1398.0 Analysis
5 Bojanala Olienpark's One For The Ages 2024 (Rooks) 2024/04/20 2024/04/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1398.4 1398.0 Analysis
4 Bojanala's Rating Express 2024 (Rooks) 2024/04/06 2024/04/06 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1398.4 1398.0 Analysis
3 Bojanala Silwerrand's Rating Implosion 2024 (Rooks) 2024/03/16 2024/03/16 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1396.8 1401.5 Analysis
2 Bojanala Closed Chess Championships Finals 2024 (U14) 2024/02/09 2024/02/11 Bojanala Platina (NBR) Standard 120 1.00 5 5 3.5 1351.5 1350.6 Analysis
1 Bojanala Closed Chess Championships Stage 1 2024 (U14) 2024/01/27 2024/01/27 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.5 1292.0 1291.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
51 Bojanala's Circuit Championships 4 of 4 204 (U16) 2024/10/12 2024/10/12 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.5 1586.5 1582.2 Analysis
50 Bojanala's Battle In The Kloof 2024 (Queens) 2024/09/21 2024/09/21 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1549.5 1524.5 Analysis
49 Kings Gambit Chess Open 14 Sept 2024 (C) 2024/09/14 2024/09/14 Sedibeng (GSV) Standard 60 0.83 5 5 5.0 1549.5 1524.5 Analysis
48 JCC Khelo India 1st Annual Chess Tournament 2024 (D) 2024/08/31 2024/08/31 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.5 1549.5 1524.5 Analysis
47 Bojanala's FIDE In The Sparkling Waters 2024 (Rooks) 2024/08/16 2024/08/18 Bojanala Platina (NBR) Standard 120 1.00 6 6 4.0 1560.0 1544.9 Analysis
46 Bojanala's Kings & Queens Rapid and Doubles 2024 (Open) 2024/08/10 2024/08/10 Bojanala Platina (NBR) Rapid 15 0.39 7 7 5.0 1560.0 1234.4 Analysis
45 Incognito Invitational 2024 (A) 2024/07/21 2024/07/21 Bojanala Platina (NBR) Standard 60 0.83 5 5 1.0 1627.8 1611.3 Analysis
44 Bojanala's Clash Of Schools 2024 (U13) 2024/07/20 2024/07/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1627.8 1611.3 Analysis
43 JMC NG Weltevreden Church 2024 2024/06/29 2024/06/29 Johannesburg Metro (GJM) Rapid 15 0.39 7 6 3.5 1627.8 1176.4 Analysis
42 Bojanala Circuit Championship 2 of 4 2024 (U16) 2024/06/15 2024/06/15 Bojanala Platina (NBR) Standard 60 0.83 5 4 1.0 1682.2 1676.0 Analysis
41 Bojanala Circuit Championship 1 of 4 2024 (U14) 2024/05/25 2024/05/25 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1566.2 1563.9 Analysis
40 Schoemies' Kwaggarus Chess Getaway 2024 (Senior) 2024/05/18 2024/05/18 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1566.2 1563.9 Analysis
39 Spartan Bishops Chess Championships 2024 (Knights) 2024/05/04 2024/05/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1566.2 1563.9 Analysis
38 2024 Milos Ristic Open Chess Tournament (U14) 2024/04/27 2024/04/27 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1398.4 1398.0 Analysis
37 Bojanala Olienpark's One For The Ages 2024 (Rooks) 2024/04/20 2024/04/20 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1398.4 1398.0 Analysis
36 Bojanala's Rating Express 2024 (Rooks) 2024/04/06 2024/04/06 Bojanala Platina (NBR) Standard 60 0.83 5 5 4.0 1398.4 1398.0 Analysis
35 Bojanala Silwerrand's Rating Implosion 2024 (Rooks) 2024/03/16 2024/03/16 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1396.8 1401.5 Analysis
34 Bojanala Closed Chess Championships Finals 2024 (U14) 2024/02/09 2024/02/11 Bojanala Platina (NBR) Standard 120 1.00 5 5 3.5 1351.5 1350.6 Analysis
33 Bojanala Closed Chess Championships Stage 1 2024 (U14) 2024/01/27 2024/01/27 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.5 1292.0 1291.2 Analysis
32 2023 Cross Border Chess Championships Gaborone vs Bojanala 2023/12/14 2023/12/16 Botswana (BOT) Standard 120 1.00 5 5 3.0 1325.8 1322.9 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 98 65 6 27 68.0 69.4 164.8 1385.6 1550.4
White 49 32 4 13 34.0 69.4 164.8 1387.1 1551.9
Black 49 33 2 14 34.0 69.4 164.8 1384.2 1549.0
Standard All 85 57 5 23 59.5 70.0 170.0 1374.7 1544.7
White 43 29 3 11 30.5 70.9 177.9 1379.5 1557.4
Black 42 28 2 12 29.0 69.0 161.9 1369.9 1531.8
Rapid All 13 8 1 4 8.5 65.4 130.8 1456.8 1587.5
White 6 3 1 2 3.5 58.3 70.8 1441.4 1512.2
Black 7 5 0 2 5.0 71.4 182.1 1470.0 1652.1
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 269 157 13 99 163.5 60.8 91.6 1325.4 1417.0
White 136 78 10 48 83.0 61.0 93.8 1330.0 1423.7
Black 133 79 3 51 80.5 60.5 89.5 1320.7 1410.1
Standard All 244 145 12 87 151.0 61.9 101.0 1312.0 1413.0
White 125 74 9 42 78.5 62.8 108.8 1321.8 1430.6
Black 119 71 3 45 72.5 60.9 92.9 1301.7 1394.6
Rapid All 18 10 1 7 10.5 58.3 70.8 1448.7 1519.5
White 8 3 1 4 3.5 43.8 -53.1 1436.2 1383.0
Black 10 7 0 3 7.0 70.0 170.0 1458.6 1628.6
Blitz All 7 2 0 5 2.0 28.6 -182.1 1473.6 1291.5
White 3 1 0 2 1.0 33.3 -141.7 1385.6 1243.9
Black 4 1 0 3 1.0 25.0 -212.5 1539.7 1327.2
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1110143714 Terblanche, J (Johann) 7 5.0 5 0 2 71.4 1413.7 182.1 1595.8 View list
2 1110140037 Grobler, R (Rowan) 7 4.5 4 1 2 64.3 1389.8 121.4 1511.2 View list
3 1110140059 Tshetlhe, B (Blessing) 7 2.5 1 3 3 35.7 1332.7 -121.4 1211.3 View list
4 1100099556 Bantseke, B (Boikanyo) 6 3.5 3 1 2 58.3 1453.5 70.8 1524.3 View list
5 1100136765 Ramaboa, T (Thando) 5 5.0 5 0 0 100.0 1484.4 425.0 1909.4 View list
6 1090131247 Changara, A (Adrian Tafara) 5 1.5 1 1 3 30.0 1389.1 -170.0 1219.1 View list
7 1110131242 Changara, A (Adiel Tavonga) 4 4.0 4 0 0 100.0 1414.8 425.0 1839.8 View list
8 1110146603 Nel, J (J-Lincoln) 4 4.0 4 0 0 100.0 1397.6 425.0 1822.6 View list
9 1110117891 Badukane, T (Tokelo) 3 3.0 3 0 0 100.0 1313.8 425.0 1738.8 View list
10 1120156747 De Jager, L (Luan) 3 3.0 3 0 0 100.0 1495.3 425.0 1920.3 View list
11 1120117881 Potgieter, R (Reinhardt) 3 3.0 3 0 0 100.0 1279.1 425.0 1704.1 View list
12 2110140248 Roos, S (Shani) 3 3.0 3 0 0 100.0 1443.0 425.0 1868.0 View list
13 1130131229 Changara, A (Alvern Takura) 3 2.0 2 0 1 66.7 1393.8 141.7 1535.5 View list
14 2120136396 Monamatha, D (Diteboho) 3 2.0 2 0 1 66.7 1383.3 141.7 1525.0 View list
15 1130131230 Changara, A (Alvis Tafadzwa) 3 1.0 1 0 2 33.3 1362.4 -141.7 1220.7 View list
16 1090135619 Dikobe, GK (Goabaone Khumo) 3 1.0 1 0 2 33.3 1473.2 -141.7 1331.5 View list
17 1120144053 Mokgatle, R (Remolebogetse) 3 1.0 1 0 2 33.3 1255.5 -141.7 1113.8 View list
18 2110141710 Dikolomela, L (Letlhogonolo) 2 2.0 3 0 0 100.0 1246.8 425.0 1671.8 View list
19 211093275 Byliefeldt, M (Mienke) 2 2.0 2 0 0 100.0 1311.8 425.0 1736.8 View list
20 1110099329 De Kock, D (De-Han) 2 2.0 2 0 0 100.0 1432.5 425.0 1857.5 View list