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: 2024/05/05 (9 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 rating1566.2
Curent Weighted rating1390.2
Curent Weighted performance1559.1
Current official/published rating (highest between Raw, WR and WP)1566.2
Current floor (min rating allowed)1066.2
Current highest rating achieved1566.2
Current K-factor32
Games played this month5
Score (S)4.0
Expected score (We)3.75
Difference (S-We)0.25
Current Raw change (no limits, including tournament time weight)6.6
Current min/max change allowed (with limits)±98.4
Current Raw change used (final)6.6
Projected new Raw rating1572.8
Projected new Weighed rating1405.2
Projected new Weighted performance1559.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1572.8
Projected effective change (new Official - current Official)+6.6
Projected new highest rating1572.8
Projected new floor1072.8
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 rating1563.9
Curent Weighted rating1386.9
Curent Weighted performance1556.9
Current official/published rating (highest between Raw, WR and WP)1563.9
Current floor (min rating allowed)1063.9
Current highest rating achieved1563.9
Current K-factor32
Games played this month5
Score (S)4.0
Expected score (We)3.83
Difference (S-We)0.17
Current Raw change (no limits, including tournament time weight)5.4
Current min/max change allowed (with limits)±98.7
Current Raw change used (final)5.4
Projected new Raw rating1569.3
Projected new Weighed rating1401.8
Projected new Weighted performance1556.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1569.3
Projected effective change (new Official - current Official)+5.4
Projected new highest rating1569.3
Projected new floor1069.3
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 rating1176.4
Curent Weighted rating1184.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1184.7
Current floor (min rating allowed)676.4
Current highest rating achieved1176.4
Current K-factor40
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)±171.5
Current Raw change used (final)0.0
Projected new Raw rating1176.4
Projected new Weighed rating1183.6
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1183.6
Projected effective change (new Official - current Official)-1.1
Projected new highest rating1176.4
Projected new floor676.4
Projected new K-facor40
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 rating1201.6
Curent Weighted rating1200.9
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1201.6
Current floor (min rating allowed)676.4
Current highest rating achieved1201.6
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 rating1201.0
Projected new Weighted performance0.0
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
Projected new highest rating1201.6
Projected new floor676.4
Projected new K-facor36
Tournaments
Tournament: Spartan Bishops Chess Championships 2024 (Knights)
Start: 2024/05/04  End: 2024/05/05  Host: NBR  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 4.0
Main rating: 1566.2  Rating gain/loss: 6.6
Type rating: 1563.9  Rating gain/loss: 5.4
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
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
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
31 Bojanala's Merry ChessMas 2023 (Rooks) 2023/12/09 2023/12/09 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.5 1325.8 1322.9 Analysis
30 West Rand vs Bojanala Inter-Regional Championships 2023 (U14) 2023/10/14 2023/10/14 West Rand (GWR) Standard 60 0.83 5 5 4.0 1310.5 1297.9 Analysis
29 2023 Moja Chess Extravaganza (Blitz) 2023/10/03 2023/10/03 Frances Baard (NCF) Blitz 5 0.18 7 7 2.0 1310.5 1200.0 Analysis
28 2023 Moja Chess Extravaganza (B) 2023/09/30 2023/10/04 Frances Baard (NCF) Standard 120 1.00 9 9 2.0 1310.5 1297.9 Analysis
27 Bojanala's Battle Of Mount Cambridge 2023 (Rooks) 2023/09/16 2023/09/16 Bojanala Platina (NBR) Standard 60 0.83 5 5 0.5 1363.9 1363.2 Analysis
26 Bojanala's Spring Cleaning 2023 (Rooks) 2023/08/26 2023/08/26 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.5 1397.5 1392.3 Analysis
25 Bojanala School League 2023 (Primary School Open) 2023/08/19 2023/08/19 Bojanala Platina (NBR) Rapid 40 0.70 5 5 2.0 1397.5 1200.0 Analysis
24 Bojanala's Rosewood 2023 (Rooks) 2023/08/12 2023/08/12 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 1397.5 1392.3 Analysis
23 Bojanala's FIDE in the Sparkling Waters 2023 (Rooks) 2023/07/28 2023/07/30 Bojanala Platina (NBR) Standard 120 1.00 6 6 3.0 1438.1 1432.9 Analysis
22 Bojanala's Post-Exams 2023 (Rooks) 2023/06/24 2023/06/24 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.0 1436.2 1428.7 Analysis
21 Olienpark - 2nd One for the Ages 2023 (U14) 2023/05/13 2023/05/13 Bojanala Platina (NBR) Standard 60 0.83 5 5 3.5 1428.8 1418.1 Analysis
20 Grenswag's Community Battle 2023 (Rooks) 2023/04/22 2023/04/22 Bojanala Platina (NBR) Standard 60 0.83 5 5 5.0 1442.6 1433.5 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 35 25 3 7 26.5 75.7 218.6 1331.0 1549.5
White 16 13 2 1 14.0 87.5 318.8 1306.1 1624.8
Black 19 12 1 6 12.5 65.8 134.2 1351.9 1486.1
Standard All 35 25 3 7 26.5 75.7 218.6 1331.0 1549.5
White 16 13 2 1 14.0 87.5 318.8 1306.1 1624.8
Black 19 12 1 6 12.5 65.8 134.2 1351.9 1486.1
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 206 117 10 79 122.0 59.2 78.4 1297.6 1376.0
White 103 59 8 36 63.0 61.2 94.9 1299.1 1394.0
Black 103 58 2 43 59.0 57.3 61.9 1296.2 1358.1
Standard All 194 113 10 71 118.0 60.8 92.0 1287.9 1380.0
White 98 58 8 32 62.0 63.3 112.8 1294.0 1406.7
Black 96 55 2 39 56.0 58.3 70.8 1281.8 1352.6
Rapid All 5 2 0 3 2.0 40.0 -85.0 1427.6 1342.6
White 2 0 0 2 0.0 0.0 -425.0 1420.7 995.7
Black 3 2 0 1 2.0 66.7 141.7 1432.2 1573.9
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 1110140059 Tshetlhe, B (Blessing) 7 2.5 1 3 3 35.7 1332.7 -121.4 1211.3 View list
2 1110143714 Terblanche, J (Johann) 5 4.0 4 0 1 80.0 1340.4 255.0 1595.4 View list
3 1110140037 Grobler, R (Rowan) 5 2.5 2 1 2 50.0 1322.5 0.0 1322.5 View list
4 1090131247 Changara, A (Adrian Tafara) 5 1.5 1 1 3 30.0 1389.1 -170.0 1219.1 View list
5 1110146603 Nel, J (J-Lincoln) 4 4.0 4 0 0 100.0 1397.6 425.0 1822.6 View list
6 1100099556 Bantseke, B (Boikanyo) 4 3.0 3 0 1 75.0 1363.1 212.5 1575.6 View list
7 1110117891 Badukane, T (Tokelo) 3 3.0 3 0 0 100.0 1313.8 425.0 1738.8 View list
8 1110131242 Changara, A (Adiel Tavonga) 3 3.0 3 0 0 100.0 1364.4 425.0 1789.4 View list
9 1120117881 Potgieter, R (Reinhardt) 3 3.0 3 0 0 100.0 1279.1 425.0 1704.1 View list
10 1130131229 Changara, A (Alvern Takura) 3 2.0 2 0 1 66.7 1393.8 141.7 1535.5 View list
11 1130131230 Changara, A (Alvis Tafadzwa) 3 1.0 1 0 2 33.3 1362.4 -141.7 1220.7 View list
12 1120144053 Mokgatle, R (Remolebogetse) 3 1.0 1 0 2 33.3 1255.5 -141.7 1113.8 View list
13 2110141710 Dikolomela, L (Letlhogonolo) 2 2.0 3 0 0 100.0 1246.8 425.0 1671.8 View list
14 211093275 Byliefeldt, M (Mienke) 2 2.0 2 0 0 100.0 1311.8 425.0 1736.8 View list
15 211093260 Jansen Van Vuuren, M (Mari) 2 2.0 2 0 0 100.0 1436.9 425.0 1861.9 View list
16 2090148725 Mokoena, T (Thato) 2 2.0 2 0 0 100.0 1397.6 425.0 1822.6 View list
17 2120136396 Monamatha, D (Diteboho) 2 2.0 2 0 0 100.0 1233.9 425.0 1658.9 View list
18 2110136768 Monare, O (Oratilwe) 2 2.0 2 0 0 100.0 1438.8 425.0 1863.8 View list
19 1100144148 Mphomane, O (Omolemo) 2 2.0 2 0 0 100.0 1433.4 425.0 1858.4 View list
20 1100136765 Ramaboa, T (Thando) 2 2.0 2 0 0 100.0 1296.6 425.0 1721.6 View list