Player Page

Botha, J (Jonathan)
Dob: 2005/02/04 (U20)
Gender: Male
Chess SA id: 105078148
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2024/04/20 (28 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 rating1244.1
Curent Weighted rating1225.5
Curent Weighted performance1204.7
Current official/published rating (highest between Raw, WR and WP)1244.1
Current floor (min rating allowed)747.4
Current highest rating achieved1247.4
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)±155.7
Current Raw change used (final)0.0
Projected new Raw rating1244.1
Projected new Weighed rating1227.4
Projected new Weighted performance1204.7
Projected new official/published rating (highest between new Raw, new WR and new WP)1244.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1247.4
Projected new floor747.4
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 rating1236.6
Curent Weighted rating1220.0
Curent Weighted performance1194.9
Current official/published rating (highest between Raw, WR and WP)1236.6
Current floor (min rating allowed)749.5
Current highest rating achieved1249.5
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)±157.4
Current Raw change used (final)0.0
Projected new Raw rating1236.6
Projected new Weighed rating1221.8
Projected new Weighted performance1194.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1236.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1249.5
Projected new floor749.5
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 rating523.6
Curent Weighted rating523.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)523.6
Current floor (min rating allowed)500.0
Current highest rating achieved523.6
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)±434.7
Current Raw change used (final)0.0
Projected new Raw rating523.6
Projected new Weighed rating523.6
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)523.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating523.6
Projected new floor500.0
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 rating523.6
Curent Weighted rating523.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)523.6
Current floor (min rating allowed)500.0
Current highest rating achieved523.6
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)±434.7
Current Raw change used (final)0.0
Projected new Raw rating523.6
Projected new Weighed rating523.6
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)523.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating523.6
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Eden Chess Trials 2 2024 (U20) 2024/04/13 2024/04/20 Eden (WEG) Standard 60 0.83 10 10 4.0 1243.5 1240.2 Analysis
2 Western Cape HS Individuals Championship 2024 (U20 Boys+Girls) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 4.0 1222.3 1216.4 Analysis
1 Eden School Chess Trials 1 2024 (U20 Mix) 2024/03/09 2024/03/09 Eden District (WEG) Standard 60 0.83 5 5 2.5 1222.3 1216.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
16 Eden Chess Trials 2 2024 (U20) 2024/04/13 2024/04/20 Eden (WEG) Standard 60 0.83 10 10 4.0 1243.5 1240.2 Analysis
15 Western Cape HS Individuals Championship 2024 (U20 Boys+Girls) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 4.0 1222.3 1216.4 Analysis
14 Eden School Chess Trials 1 2024 (U20 Mix) 2024/03/09 2024/03/09 Eden District (WEG) Standard 60 0.83 5 5 2.5 1222.3 1216.4 Analysis
13 Eden Trials 2+3 2023 (U20) 2023/04/15 2023/05/13 Eden District (WEG) Standard 60 0.83 10 5 2.5 1247.4 1249.5 Analysis
12 Eden Trails 1 2023 (U19 Boys) 2023/03/11 2023/03/11 Eden District (WEG) Standard 60 0.83 5 0 0.0 1247.4 1249.5 Analysis
11 Oudussa Proewe 1 2023 (U19 Boys) 2023/02/11 2023/02/11 Eden District (WEG) Standard 60 0.83 5 5 4.0 1199.6 1190.1 Analysis
10 Eden Proewe 2 2022 (O18 Seuns) 2022/04/09 2022/04/09 Eden District (WEG) Standard 65 0.85 5 5 2.0 1214.3 1204.9 Analysis
9 Eden Proewe 1 2022 (O18 Seuns) 2022/03/12 2022/03/12 Eden District (WEG) Standard 65 0.85 5 5 2.5 1212.2 1203.8 Analysis
8 Eden Schools Closed Trials 1 2020 (U15 Boys) 2020/03/07 2020/03/07 Eden District (WEG) Standard 65 0.85 5 5 3.0 1216.2 1208.5 Analysis
7 Oudtshoorn Proewe 1 2020 (O15) 2020/02/15 2020/02/15 Eden District (WEG) Standard 60 0.83 5 5 4.0 1167.2 1147.7 Analysis
6 Eden Trials 3 2019 (U16 Open) 2019/05/11 2019/05/11 Eden District (WEG) Standard 60 0.83 5 5 2.0 1211.7 1203.5 Analysis
5 Eden Trials 2 2019 (U16 Open) 2019/04/13 2019/04/13 Eden District (WEG) Standard 60 0.83 5 4 3.0 895.1 954.8 Analysis
4 Eden Trials 1 2019 (U16 Open) 2019/03/02 2019/03/02 Eden District (WEG) Standard 60 0.83 5 5 3.0 820.4 877.2 Analysis
3 Oudtshoorn Trials 3 2019 (U16) 2019/02/16 2019/02/16 Eden District (WEG) Standard 60 0.83 5 5 3.0 602.6 618.4 Analysis
2 Oudtshoorn Trials 2 2019 (U16) 2019/02/09 2019/02/09 Eden District (WEG) Standard 60 0.83 5 5 4.0 602.6 618.4 Analysis
1 Oudtshoorn Trials 1 2019 (U16) 2019/01/19 2019/01/19 Eden District (WEG) Standard 60 0.83 5 4 2.5 523.6 523.6 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 21 9 3 9 10.5 50.0 0.0 1259.5 1259.5
White 10 4 1 5 4.5 45.0 -42.5 1281.9 1239.4
Black 11 5 2 4 6.0 54.5 38.6 1239.3 1277.9
Standard All 21 9 3 9 10.5 50.0 0.0 1259.5 1259.5
White 10 4 1 5 4.5 45.0 -42.5 1281.9 1239.4
Black 11 5 2 4 6.0 54.5 38.6 1239.3 1277.9
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 79 43 6 30 46.0 58.2 69.9 1160.1 1230.0
White 37 20 2 15 21.0 56.8 57.4 1185.5 1242.9
Black 42 23 4 15 25.0 59.5 81.0 1137.7 1218.7
Standard All 79 43 6 30 46.0 58.2 69.9 1160.1 1230.0
White 37 20 2 15 21.0 56.8 57.4 1185.5 1242.9
Black 42 23 4 15 25.0 59.5 81.0 1137.7 1218.7
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1050098458 Mostert, R (Richard) 3 2.0 2 0 1 66.7 1031.2 141.7 1172.8 View list
2 105078131 Kiewiet, M (Marvin) 3 0.0 0 0 3 0.0 1223.3 -425.0 798.3 View list
3 2060193111 Cremer, L (Leah) 2 2.0 2 0 0 100.0 1222.3 425.0 1647.3 View list
4 1050107882 Julies, N (Nigeal) 2 2.0 2 0 0 100.0 909.4 425.0 1334.4 View list
5 1060139283 Ribeiro, E (Enrique) 2 1.5 1 1 0 75.0 1227.8 212.5 1440.3 View list
6 204054165 De Villiers, B (Bianca) 2 1.0 1 0 1 50.0 1053.4 0.0 1053.4 View list
7 106092942 Daniels, K (Keanu) 2 1.0 1 0 1 50.0 1232.9 0.0 1232.9 View list
8 104055794 Arries, J (Jodin) 2 1.0 1 0 1 50.0 563.1 0.0 563.1 View list
9 1050098459 Matthews, I (Isiah) 2 1.0 1 0 1 50.0 857.8 0.0 857.8 View list
10 106065429 Petersen, JD (John-Wayne) 2 0.5 0 1 1 25.0 1221.5 -212.5 1009.0 View list
11 1060118499 Claassen, R (Ruwaldo) 2 0.0 0 0 2 0.0 1222.3 -425.0 797.3 View list
12 1050151099 Goliath, P (Peterianho) 2 0.0 0 0 2 0.0 1245.5 -425.0 820.5 View list
13 105065436 Abrahams, L (Liaan) 1 1.0 1 0 0 100.0 523.6 425.0 948.6 View list
14 2090151096 Davids, M (Mikah Rae) 1 1.0 1 0 0 100.0 1199.6 425.0 1624.6 View list
15 1050151329 Geel, R (Ruan) 1 1.0 1 0 0 100.0 1222.3 425.0 1647.3 View list
16 2050132028 Booysen, A (Ash Lee) 1 1.0 1 0 0 100.0 1167.2 425.0 1592.2 View list
17 1060137853 Bolo, K (Khanyisa) 1 1.0 1 0 0 100.0 1212.2 425.0 1637.2 View list
18 105088331 Bezuidenhout, R (Ross) 1 1.0 1 0 0 100.0 1216.2 425.0 1641.2 View list
19 1060109428 Benedito, E (Enrique) 1 1.0 1 0 0 100.0 1167.2 425.0 1592.2 View list
20 105091180 Barends, X (Xavier) 1 1.0 1 0 0 100.0 1211.7 425.0 1636.7 View list