Player Page

Botha, JCC (Johannes Christiaan Corneli)
Dob: 2011/12/21 (U14)
Gender: Male
Chess SA id: 1110118128
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2024/08/24 (41 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 rating1665.3
Current Weighted rating1574.6
Current Weighted performance1663.6
Current official/published rating (highest between Raw, WR and WP)1665.3
Current highest rating achieved1665.3
Current floor (min rating allowed)1165.3
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)±85.5
Current Raw change used (final)0.0
Projected new Raw rating1665.3
Projected new Weighed rating1449.1
Projected new Weighted performance1663.6
Projected new final Raw rating (if new WP > new Raw)1665.3
Projected new highest rating1665.3
Projected new floor1165.3
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1665.3
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 rating1659.9
Current Weighted rating1567.7
Current Weighted performance1663.6
Current official/published rating (highest between Raw, WR and WP)1663.6
Current highest rating achieved1662.5
Current floor (min rating allowed)1162.5
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)±86.1
Current Raw change used (final)0.0
Projected new Raw rating1659.9
Projected new Weighed rating1442.7
Projected new Weighted performance1663.6
Projected new final Raw rating (if new WP > new Raw)1663.6
Projected new highest rating1663.6
Projected new floor1163.6
Projected new K-facor28
Projected new official/published rating (highest between new Raw, new WR and new WP)1663.6
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 rating1255.6
Current Weighted rating1255.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1255.6
Current highest rating achieved1255.6
Current floor (min rating allowed)755.6
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)±153.2
Current Raw change used (final)0.0
Projected new Raw rating1255.6
Projected new Weighed rating1155.2
Projected new Weighted performance382.2
Projected new final Raw rating (if new WP > new Raw)1255.6
Projected new highest rating1255.6
Projected new floor755.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1255.6
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
14 Ekurhuleni Trails 3 2024 (U14) 2024/08/24 2024/08/24 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1597.4 1586.0 Analysis
13 Gauteng Schools Individuals Finals 2024 (U13 Boys) 2024/08/16 2024/08/16 Ekurhuleni (GE) Standard 60 0.83 5 5 5.0 1597.4 1586.0 Analysis
12 Ekurhuleni North Schools Finals - Teams 2024 (U13 Open) 2024/08/03 2024/08/03 Ekurhuleni (GE) Standard 60 0.83 5 5 5.0 1597.4 1586.0 Analysis
11 Ekurhuleni Trails 2 2024 (U14) 2024/07/27 2024/07/27 Ekurhuleni (GE) Standard 60 0.83 5 4 3.0 1588.7 1574.4 Analysis
10 AG Visser Open 2024 (C) 2024/06/08 2024/06/08 Sedibeng (GSV) Standard 60 0.83 5 5 4.0 1467.3 1456.6 Analysis
9 Ekurhuleni Trails 1 2024 (U14) 2024/06/01 2024/06/01 Ekurhuleni (GE) Standard 62 0.84 5 5 4.0 1467.3 1456.6 Analysis
8 Ekurhuleni North Primary Schools District Individual Finals 2024 (U13 Boys) 2024/05/11 2024/05/11 Ekurhuleni (GE) Standard 60 0.83 5 4 4.0 1467.3 1456.6 Analysis
7 JMC Helpmekaar Kollege Tournament 2024 (B) 2024/05/04 2024/05/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1564.1 1556.4 Analysis
6 South African Junior Closed Chess Championship 2024 (U14 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 2.0 1564.1 1556.4 Analysis
5 Westwood Open 2024 (A) 2024/04/13 2024/04/13 Ekurhuleni (GE) Standard 60 0.83 5 4 3.0 1572.5 1568.2 Analysis
4 JNW Open - Classic - Crawford 2024 (B) 2024/03/09 2024/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1564.8 1558.4 Analysis
3 2024 Constantiapark Open (B) 2024/02/17 2024/02/17 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1576.7 1574.9 Analysis
2 JMC Kick Off Tournament 2024 (B) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1581.5 1578.8 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U14A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1581.5 1578.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
46 Ekurhuleni Trails 3 2024 (U14) 2024/08/24 2024/08/24 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1597.4 1586.0 Analysis
45 Gauteng Schools Individuals Finals 2024 (U13 Boys) 2024/08/16 2024/08/16 Ekurhuleni (GE) Standard 60 0.83 5 5 5.0 1597.4 1586.0 Analysis
44 Ekurhuleni North Schools Finals - Teams 2024 (U13 Open) 2024/08/03 2024/08/03 Ekurhuleni (GE) Standard 60 0.83 5 5 5.0 1597.4 1586.0 Analysis
43 Ekurhuleni Trails 2 2024 (U14) 2024/07/27 2024/07/27 Ekurhuleni (GE) Standard 60 0.83 5 4 3.0 1588.7 1574.4 Analysis
42 AG Visser Open 2024 (C) 2024/06/08 2024/06/08 Sedibeng (GSV) Standard 60 0.83 5 5 4.0 1467.3 1456.6 Analysis
41 Ekurhuleni Trails 1 2024 (U14) 2024/06/01 2024/06/01 Ekurhuleni (GE) Standard 62 0.84 5 5 4.0 1467.3 1456.6 Analysis
40 Ekurhuleni North Primary Schools District Individual Finals 2024 (U13 Boys) 2024/05/11 2024/05/11 Ekurhuleni (GE) Standard 60 0.83 5 4 4.0 1467.3 1456.6 Analysis
39 JMC Helpmekaar Kollege Tournament 2024 (B) 2024/05/04 2024/05/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1564.1 1556.4 Analysis
38 South African Junior Closed Chess Championship 2024 (U14 Open) 2024/04/27 2024/05/01 Ekurhuleni (GE) Standard 120 1.00 9 9 2.0 1564.1 1556.4 Analysis
37 Westwood Open 2024 (A) 2024/04/13 2024/04/13 Ekurhuleni (GE) Standard 60 0.83 5 4 3.0 1572.5 1568.2 Analysis
36 JNW Open - Classic - Crawford 2024 (B) 2024/03/09 2024/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 1564.8 1558.4 Analysis
35 2024 Constantiapark Open (B) 2024/02/17 2024/02/17 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1576.7 1574.9 Analysis
34 JMC Kick Off Tournament 2024 (B) 2024/01/28 2024/01/28 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1581.5 1578.8 Analysis
33 2024 Gauteng Inter-Region Chess Championship (U14A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1581.5 1578.8 Analysis
32 2023 Gauteng Top Schools (U13 Mixed) 2023/08/18 2023/08/18 West Rand (GWR) Standard 60 0.83 5 5 5.0 1530.3 1525.8 Analysis
31 2023 Ekurhuleni North District Schools Finals (U13) 2023/07/29 2023/07/29 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1516.6 1507.6 Analysis
30 Gauteng Schools Individual Finals 2023 (U13 Boys) 2023/05/26 2023/05/26 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1534.0 1518.5 Analysis
29 Gauteng Open Arnold Classic 2023 (Open) 2023/05/20 2023/05/21 Tshwane (GTP) Standard 90 0.94 5 4 0.0 1534.0 1518.5 Analysis
28 Ekurhuleni North Schools Individual Finals 2023 (U13 Boys) 2023/05/12 2023/05/12 Ekurhuleni (GE) Standard 60 0.83 5 5 5.0 1534.0 1518.5 Analysis
27 Ekurhuleni Trials 2 2023 (U14) 2023/04/22 2023/04/22 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1569.9 1562.7 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 71 46 5 20 48.5 68.3 155.6 1410.3 1565.9
White 34 21 3 10 22.5 66.2 137.5 1411.6 1549.1
Black 37 25 2 10 26.0 70.3 172.3 1409.2 1581.5
Standard All 71 46 5 20 48.5 68.3 155.6 1410.3 1565.9
White 34 21 3 10 22.5 66.2 137.5 1411.6 1549.1
Black 37 25 2 10 26.0 70.3 172.3 1409.2 1581.5
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 243 167 9 67 171.5 70.6 174.9 1334.2 1509.1
White 120 82 5 33 84.5 70.4 173.5 1325.5 1499.0
Black 123 85 4 34 87.0 70.7 176.2 1342.7 1518.9
Standard All 237 162 9 66 166.5 70.3 172.2 1336.6 1508.7
White 117 79 5 33 81.5 69.7 167.1 1327.7 1494.8
Black 120 83 4 33 85.0 70.8 177.1 1345.3 1522.3
Rapid All 6 5 0 1 5.0 83.3 283.3 1239.0 1522.4
White 3 3 0 0 3.0 100.0 425.0 1238.9 1663.9
Black 3 2 0 1 2.0 66.7 141.7 1239.2 1380.9
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 1110103524 Kotzee, A (Armand) 4 3.0 3 0 1 75.0 1558.4 212.5 1770.9 View list
2 1110139528 Robinson, E (Ethan) 4 3.0 3 0 1 75.0 1508.6 212.5 1721.1 View list
3 1110109195 Tema, O (Ofana) 4 2.5 2 1 1 62.5 1541.3 106.3 1647.5 View list
4 2110151735 Ambrose, I (Isabella) 3 3.0 3 0 0 100.0 1542.1 425.0 1967.1 View list
5 210088032 De Vasconcelos, T (Tiaana) 3 3.0 3 0 0 100.0 1449.0 425.0 1874.0 View list
6 1110118124 Pieterse, JF (Jurgens Francois) 3 3.0 3 0 0 100.0 1356.7 425.0 1781.7 View list
7 1110097360 Pillay, Z (Zac) 3 3.0 3 0 0 100.0 1490.9 425.0 1915.9 View list
8 1100116478 Smith, H (Henre) 3 3.0 3 0 0 100.0 1433.9 425.0 1858.9 View list
9 1120096779 Yang, JD (Daniel) 3 1.5 1 1 1 50.0 1574.5 0.0 1574.5 View list
10 2110130015 Botha, C (Cathri Amari) 2 2.0 2 0 0 100.0 1522.0 425.0 1947.0 View list
11 2110145812 Dankaert, A (Alexis) 2 2.0 2 0 0 100.0 1528.0 425.0 1953.0 View list
12 111009119 Esterhuizen, JL (Janco) 2 2.0 2 0 0 100.0 1531.7 425.0 1956.7 View list
13 1120135370 Fick, L (Logan Nicolas) 2 2.0 2 0 0 100.0 1495.1 425.0 1920.1 View list
14 1110097689 Froom, J (Jacob) 2 2.0 2 0 0 100.0 1496.1 425.0 1921.1 View list
15 1120136689 Kalimashe, T (Tshireletso) 2 2.0 2 0 0 100.0 1500.2 425.0 1925.2 View list
16 2100107820 Labuschagne, M (Melindie) 2 2.0 2 0 0 100.0 1389.1 425.0 1814.1 View list
17 1120140144 Myburgh, L (Liam) 2 2.0 2 0 0 100.0 1370.3 425.0 1795.3 View list
18 1110103928 Slabbert, ZN (Zander Nicolaas) 2 2.0 2 0 0 100.0 1496.1 425.0 1921.1 View list
19 1090118195 Strydom, L (Leyan) 2 2.0 2 0 0 100.0 1597.8 425.0 2022.8 View list
20 1120108381 Van Der Merwe, M (Marthinus) 2 2.0 2 0 0 100.0 1556.5 425.0 1981.5 View list