Player Page

Bothma, I (Isabella)
Dob: 2005/07/21 (U20)
Gender: Female
Chess SA id: 205069709
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2019/06/15 (1990 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 rating1156.1
Current Weighted rating1156.1
Current Weighted performance347.4
Current official/published rating (highest between Raw, WR and WP)1156.1
Current highest rating achieved1196.9
Current floor (min rating allowed)696.9
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)±176.5
Current Raw change used (final)0.0
Projected new Raw rating1156.1
Projected new Weighed rating1063.6
Projected new Weighted performance347.4
Projected new final Raw rating (if new WP > new Raw)1156.1
Projected new highest rating1196.9
Projected new floor696.9
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1156.1
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 rating1140.2
Current Weighted rating1140.2
Current Weighted performance347.6
Current official/published rating (highest between Raw, WR and WP)1140.2
Current highest rating achieved1195.0
Current floor (min rating allowed)695.0
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)±180.6
Current Raw change used (final)0.0
Projected new Raw rating1140.2
Projected new Weighed rating1049.0
Projected new Weighted performance347.6
Projected new final Raw rating (if new WP > new Raw)1140.2
Projected new highest rating1195.0
Projected new floor695.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1140.2
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 rating669.0
Current Weighted rating669.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)669.0
Current highest rating achieved669.0
Current floor (min rating allowed)500.0
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)±353.3
Current Raw change used (final)0.0
Projected new Raw rating669.0
Projected new Weighed rating615.5
Projected new Weighted performance116.8
Projected new final Raw rating (if new WP > new Raw)669.0
Projected new highest rating669.0
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)669.0
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 rating576.2
Current Weighted rating576.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)576.2
Current highest rating achieved576.2
Current floor (min rating allowed)500.0
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)±403.3
Current Raw change used (final)0.0
Projected new Raw rating576.2
Projected new Weighed rating530.1
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating576.2
Projected new floor500.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)576.2
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
22 JNW Club - Hoerskool Linden 2019 (C) 2019/06/15 2019/06/15 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1142.2 1122.2 Analysis
21 Gauteng D9 Finals 2019 (U15 Girls) 2019/05/18 2019/05/18 Johannesburg Metro (GJM) Rapid 45 0.74 5 5 3.5 1196.9 576.2 Analysis
20 JNW Club - Bryanston Open 2 2019 (C) 2019/05/11 2019/05/11 Johannesburg Metro (GJM) Standard 60 0.83 5 5 1.0 1196.9 1191.4 Analysis
19 JNW Club - Charterhouse Open 2019 (C) 2019/04/13 2019/04/13 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1174.4 1173.4 Analysis
18 JNW Club - Trinityhouse Randpark Ridge Open 2019 (C) 2019/03/09 2019/03/09 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1148.2 1141.8 Analysis
17 JNW Club - Trinityhouse Little Falls Open 2019 (C) 2019/02/23 2019/02/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1154.8 1150.2 Analysis
16 JNW Club - Bryanston Open 1 2019 (B) 2019/01/26 2019/01/26 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1147.5 1140.6 Analysis
15 South African Junior Team Championships 2018 (U14B) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 4.5 1157.1 1147.8 Analysis
14 Inter Region GE vs JHB Metro 2018 (U14B) 2018/10/06 2018/10/06 Ekurhuleni (GE) Standard 60 0.83 5 4 0.5 1195.9 1195.0 Analysis
13 JNW Club - Muldersdrif Open 2018 (C) 2018/08/18 2018/08/18 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1056.0 1056.6 Analysis
12 JNW Club - Maragon Open 2018 (C) 2018/08/04 2018/08/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1056.0 1056.6 Analysis
11 JHB Metro Junior Closed 2018 (U14) 2018/07/28 2018/07/29 Johannesburg Metro (GJM) Standard 90 0.94 6 6 3.0 1062.9 1063.3 Analysis
10 British International Prep/Chessnuts 2018 (U14+U16) 2018/06/23 2018/06/23 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 980.8 982.5 Analysis
9 Fonties Challenge 2018 (U13+U15) 2018/04/21 2018/04/21 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 876.1 878.7 Analysis
8 JNW Club - Linden Open 2018 (C) 2018/04/14 2018/04/14 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 876.1 878.7 Analysis
7 JNW Club - Trinityhouse Randpark Ridge Open 2018 (C) 2018/03/24 2018/03/24 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 868.8 870.2 Analysis
6 JNW Club - Northriding College Open 2018 (B) 2018/03/09 2018/03/10 Johannesburg Metro (GJM) Standard 60 0.83 6 6 3.5 868.8 870.2 Analysis
5 JNW Club - Trinityhouse Little Falls Open 2018 (D) 2018/02/16 2018/02/17 Johannesburg Metro (GJM) Standard 65 0.85 6 6 4.5 743.9 755.4 Analysis
4 Chessnuts - Kickoff Open 2018 (D) 2018/02/09 2018/02/10 Johannesburg Metro (GJM) Standard 61 0.83 6 6 4.5 743.9 755.4 Analysis
3 JNW Club - Bryanston Open 2018 (D) 2018/01/26 2018/01/27 Johannesburg Metro (GJM) Standard 65 0.85 6 6 3.0 576.2 576.2 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 120 59 9 52 63.5 52.9 24.8 1009.9 1034.6
White 58 33 3 22 34.5 59.5 80.6 1015.9 1096.5
Black 62 26 6 30 29.0 46.8 -27.4 1004.2 976.8
Standard All 115 56 8 51 60.0 52.2 18.5 1011.8 1030.3
White 55 31 3 21 32.5 59.1 77.3 1027.3 1104.6
Black 60 25 5 30 27.5 45.8 -35.4 997.7 962.2
Rapid All 5 3 1 1 3.5 70.0 170.0 964.2 1134.2
White 3 2 0 1 2.0 66.7 141.7 807.0 948.7
Black 2 1 1 0 1.5 75.0 212.5 1200.0 1412.5
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 209076633 Scullard, S (Sienne) 3 3.0 3 0 0 100.0 1013.6 425.0 1438.6 View list
2 206050275 De Jager, K (Karli) 2 2.0 2 0 0 100.0 810.0 425.0 1235.0 View list
3 108073208 Steyn, T (Tjaart) 2 2.0 2 0 0 100.0 1008.5 425.0 1433.5 View list
4 106076113 Van Graan, N (Nelius) 2 2.0 2 0 0 100.0 1108.8 425.0 1533.8 View list
5 204069424 Tarafdar, S (Shamama) 2 1.5 1 1 0 75.0 1102.1 212.5 1314.6 View list
6 207082268 Badenhorst, C (Chloe) 2 1.0 1 0 1 50.0 945.7 0.0 945.7 View list
7 208071873 Chinoruma, T (Tawana) 2 1.0 1 0 1 50.0 1025.3 0.0 1025.3 View list
8 107086443 Felix, H (Harrison) 2 1.0 1 0 1 50.0 962.4 0.0 962.4 View list
9 1040096019 Flockhart, E (Elijah) 2 1.0 1 0 1 50.0 816.1 0.0 816.1 View list
10 111092705 Moonsammy, E (Ethan) 2 1.0 1 0 1 50.0 1148.5 0.0 1148.5 View list
11 109081098 Naidoo, K (Kirthan) 2 1.0 1 0 1 50.0 1102.1 0.0 1102.1 View list
12 107055344 Paraian, N (Nicolai) 2 1.0 1 0 1 50.0 1005.5 0.0 1005.5 View list
13 107060719 Van Blomestein, M (Matthew) 2 1.0 1 0 1 50.0 1099.1 0.0 1099.1 View list
14 105060227 Pillay, M (Mikhael) 2 0.0 0 0 2 0.0 868.8 -425.0 443.8 View list
15 105057237 Basson, A (Andrew) 1 1.0 1 0 0 100.0 576.2 425.0 1001.2 View list
16 105053982 Du Toit, T (Tano) 1 1.0 1 0 0 100.0 743.9 425.0 1168.9 View list
17 199003552 Brinkmann, NE (Nicholas) 1 1.0 1 0 0 100.0 1147.5 425.0 1572.5 View list
18 105066725 Botes, J (Jovan) 1 1.0 1 0 0 100.0 743.9 425.0 1168.9 View list
19 103060504 Botes, C (Christiaan) 1 1.0 1 0 0 100.0 876.1 425.0 1301.1 View list
20 204079859 Fauconier, C (Caley) 1 1.0 1 0 0 100.0 1056.0 425.0 1481.0 View list