Player Page

Botha, RMJ (Robert)
Dob: 2011/08/22 (U14)
Gender: Male
Chess SA id: 1110114764
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/12/08 (2 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 rating1526.9
Current Weighted rating1409.2
Current Weighted performance1503.5
Current official/published rating (highest between Raw, WR and WP)1526.9
Current highest rating achieved1526.9
Current floor (min rating allowed)1026.9
Current K-factor32
Games played this month5
Score (S)1.0
Expected score (We)3.00
Difference (S-We)-1.88
Current Raw change (no limits, including tournament time weight)-60.2
Current min/max change allowed (with limits)±104.1
Current Raw change used (final)-60.2
Projected new Raw rating1466.7
Projected new Weighed rating1299.1
Projected new Weighted performance1413.6
Projected new final Raw rating (if new WP > new Raw)1466.7
Projected new highest rating1526.9
Projected new floor1026.9
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1466.7
Projected effective change (new Official - current Official)-60.2
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 rating1526.9
Current Weighted rating1400.0
Current Weighted performance1503.5
Current official/published rating (highest between Raw, WR and WP)1526.9
Current highest rating achieved1526.9
Current floor (min rating allowed)1026.9
Current K-factor32
Games played this month5
Score (S)1.0
Expected score (We)3.01
Difference (S-We)-2.01
Current Raw change (no limits, including tournament time weight)-64.3
Current min/max change allowed (with limits)±104.1
Current Raw change used (final)-64.3
Projected new Raw rating1462.6
Projected new Weighed rating1291.0
Projected new Weighted performance1413.6
Projected new final Raw rating (if new WP > new Raw)1462.6
Projected new highest rating1526.9
Projected new floor1026.9
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1462.6
Projected effective change (new Official - current Official)-64.3
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 rating1262.8
Current Weighted rating1262.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1262.8
Current highest rating achieved1262.8
Current floor (min rating allowed)762.8
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)±151.6
Current Raw change used (final)0.0
Projected new Raw rating1262.8
Projected new Weighed rating1161.8
Projected new Weighted performance416.4
Projected new final Raw rating (if new WP > new Raw)1262.8
Projected new highest rating1262.8
Projected new floor762.8
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1262.8
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
Tournament: Gauteng Inter-Region at UJ 2024 (U14 Open)
Start: 2024/12/07  End: 2024/12/08  Host: GJM  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 5
Games: 5  Score: 1.0
Main rating: 1526.9  Rating gain/loss: -60.2
Type rating: 1526.9  Rating gain/loss: -64.3
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
10 Gauteng Inter-Region at UJ 2024 (U14 Open) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 1.0 1526.9 1526.9 Analysis
9 Gauteng Top Schools 2024 (U13 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1511.2 1509.0 Analysis
8 2024 Etienne Lewis (U14) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 7 5.0 1498.0 1495.6 Analysis
7 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U13A) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1460.4 1456.8 Analysis
6 2024 Elise Steenkamp Open Chess Tournament (Kings) 2024/06/15 2024/06/17 Tshwane (GTP) Standard 90 0.94 7 7 3.0 1445.3 1440.8 Analysis
5 2024 Tshwane South School District CLOSED Individual Championships (U13 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1441.2 1433.5 Analysis
4 2024 Milos Ristic Open Chess Tournament (U14) 2024/04/27 2024/04/27 Tshwane (GTP) Standard 60 0.83 5 4 4.0 1341.8 1333.9 Analysis
3 2024 Tshwane Chess AHS Open Chess Tournament (C2) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 4 3.0 1307.3 1294.0 Analysis
2 2024 Blou Bul Open Chess Tournament (C) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1307.3 1294.0 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U14B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1306.7 1290.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
44 Gauteng Inter-Region at UJ 2024 (U14 Open) 2024/12/07 2024/12/08 Johannesburg Metro (GJM) Standard 90 0.94 5 5 1.0 1526.9 1526.9 Analysis
43 Gauteng Top Schools 2024 (U13 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 5 4.0 1511.2 1509.0 Analysis
42 2024 Etienne Lewis (U14) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 7 5.0 1498.0 1495.6 Analysis
41 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U13A) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1460.4 1456.8 Analysis
40 2024 Elise Steenkamp Open Chess Tournament (Kings) 2024/06/15 2024/06/17 Tshwane (GTP) Standard 90 0.94 7 7 3.0 1445.3 1440.8 Analysis
39 2024 Tshwane South School District CLOSED Individual Championships (U13 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1441.2 1433.5 Analysis
38 2024 Milos Ristic Open Chess Tournament (U14) 2024/04/27 2024/04/27 Tshwane (GTP) Standard 60 0.83 5 4 4.0 1341.8 1333.9 Analysis
37 2024 Tshwane Chess AHS Open Chess Tournament (C2) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 4 3.0 1307.3 1294.0 Analysis
36 2024 Blou Bul Open Chess Tournament (C) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1307.3 1294.0 Analysis
35 2024 Gauteng Inter-Region Chess Championship (U14B) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 2.0 1306.7 1290.8 Analysis
34 2023 Centurion Chess Open (C) 2023/09/23 2023/09/23 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1308.6 1292.6 Analysis
33 2023 Etienne Lewis Closed Tournament (U14) 2023/08/25 2023/08/27 Tshwane (GTP) Standard 90 0.94 7 7 4.0 1270.4 1241.1 Analysis
32 2023 Tshwane South School District CLOSED League Championship (U13) 2023/07/29 2023/07/29 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1266.7 1229.6 Analysis
31 2023 Elize Steenkamp Open Tournament (B) 2023/06/16 2023/06/16 Tshwane (GTP) Standard 90 0.94 6 6 1.0 1307.9 1271.4 Analysis
30 2023 Milos Ristic Open Tournament (B) 2023/04/27 2023/04/27 Tshwane (GTP) Standard 60 0.83 5 4 0.5 1368.7 1342.3 Analysis
29 2023 Tshwane South School District CLOSED Individual Championships (U13 Open) 2023/04/22 2023/04/22 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1368.7 1342.3 Analysis
28 Silver Lakes Open Chess Tournament (B) 2023/04/15 2023/04/15 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1368.7 1342.3 Analysis
27 Chris Greyling Open Tournament 2023 (B) 2023/03/21 2023/03/21 Tshwane (GTP) Standard 60 0.83 5 5 1.0 1408.0 1393.8 Analysis
26 2022 South African Junior Team Chess Championships (U12 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 7 5.5 1347.9 1320.3 Analysis
25 2022 Etienne Lewis (U12 Open) 2022/09/02 2022/09/04 Tshwane (GTP) Standard 90 0.94 7 7 5.0 1246.6 1218.1 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 52 31 0 21 31.0 59.6 81.7 1375.9 1457.7
White 27 15 0 12 15.0 55.6 47.2 1369.9 1417.2
Black 25 16 0 9 16.0 64.0 119.0 1382.4 1501.4
Standard All 52 31 0 21 31.0 59.6 81.7 1375.9 1457.7
White 27 15 0 12 15.0 55.6 47.2 1369.9 1417.2
Black 25 16 0 9 16.0 64.0 119.0 1382.4 1501.4
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 231 112 10 109 117.0 50.6 5.5 1281.7 1287.2
White 122 62 4 56 64.0 52.5 20.9 1275.0 1295.9
Black 109 50 6 53 53.0 48.6 -11.7 1289.3 1277.6
Standard All 219 104 10 105 109.0 49.8 -1.9 1285.4 1283.5
White 117 58 4 55 60.0 51.3 10.9 1280.3 1291.2
Black 102 46 6 50 49.0 48.0 -16.7 1291.2 1274.6
Rapid All 12 8 0 4 8.0 66.7 141.7 1214.7 1356.3
White 5 4 0 1 4.0 80.0 255.0 1150.4 1405.4
Black 7 4 0 3 4.0 57.1 60.7 1260.6 1321.3
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 1120096779 Yang, JD (Daniel) 6 0.0 0 0 6 0.0 1267.4 -425.0 842.4 View list
2 1110109561 Coetzee, M (Marko) 4 4.0 4 0 0 100.0 1305.5 425.0 1730.5 View list
3 1100119500 Van Der Merwe, R (Ruben) 3 3.0 3 0 0 100.0 1249.2 425.0 1674.2 View list
4 1120107185 Steyn, H (Henco) 3 2.5 2 1 0 83.3 1273.8 283.3 1557.1 View list
5 1110105109 Klopper, PA (Phillippus Arnoldus) 3 2.0 2 0 1 66.7 1187.8 141.7 1329.5 View list
6 111086773 Senekal, W (William) 3 2.0 2 0 1 66.7 1267.6 141.7 1409.3 View list
7 1110103928 Slabbert, ZN (Zander Nicolaas) 3 2.0 2 0 1 66.7 1281.0 141.7 1422.7 View list
8 1110139982 Kock, L (Luca) 3 1.0 1 0 2 33.3 1366.5 -141.7 1224.8 View list
9 1120119689 Rust, C (Christoph) 3 1.0 1 0 2 33.3 1235.4 -141.7 1093.8 View list
10 1110096784 Radia, S (Shyam) 3 0.0 0 0 3 0.0 1186.4 -425.0 761.4 View list
11 1120137394 Du Bruyn, D (Dylan) 2 2.0 2 0 0 100.0 1312.1 425.0 1737.1 View list
12 1110114768 Le Roux, D (Daniel) 2 2.0 2 0 0 100.0 1372.3 425.0 1797.3 View list
13 1110304601 Van Niekerk, H (Hugo) 2 2.0 2 0 0 100.0 1485.8 425.0 1910.8 View list
14 2110105111 Webb, A (Abbygail) 2 2.0 2 0 0 100.0 1248.7 425.0 1673.7 View list
15 2070115594 Grahan, C (Chie-Ann) 2 1.5 1 1 0 75.0 1194.2 212.5 1406.7 View list
16 1110100045 Gondwe, P (Prosper) 2 1.0 1 0 1 50.0 1277.3 0.0 1277.3 View list
17 2110103926 Jacobs, AE (Alyssa) 2 1.0 1 0 1 50.0 1211.6 0.0 1211.6 View list
18 108077127 Lotz, L (Leanu) 2 1.0 1 0 1 50.0 1218.1 0.0 1218.1 View list
19 1110139528 Robinson, E (Ethan) 2 1.0 1 0 1 50.0 1478.3 0.0 1478.3 View list
20 111095070 Tennant, N (Nathan) 2 1.0 1 0 1 50.0 1324.2 0.0 1324.2 View list