Player Page

Donald, J (Joshua)
Dob: 2006/10/17 (U20)
Gender: Male
Chess SA id: 1060134486
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/01/14 (159 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 rating1435.8
Current Weighted rating1443.0
Current Weighted performance1223.0
Current official/published rating (highest between Raw, WR and WP)1443.0
Current highest rating achieved1492.8
Current floor (min rating allowed)992.8
Current K-factor32
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)±118.5
Current Raw change used (final)0.0
Projected new Raw rating1435.8
Projected new Weighed rating1331.3
Projected new Weighted performance1223.0
Projected new final Raw rating (if new WP > new Raw)1435.8
Projected new highest rating1492.8
Projected new floor992.8
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1435.8
Projected effective change (new Official - current Official)-7.2
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 rating1418.8
Current Weighted rating1411.3
Current Weighted performance1259.0
Current official/published rating (highest between Raw, WR and WP)1418.8
Current highest rating achieved1475.4
Current floor (min rating allowed)975.4
Current K-factor32
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)±121.4
Current Raw change used (final)0.0
Projected new Raw rating1418.8
Projected new Weighed rating1302.8
Projected new Weighted performance1259.0
Projected new final Raw rating (if new WP > new Raw)1418.8
Projected new highest rating1475.4
Projected new floor975.4
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1418.8
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 rating1078.2
Current Weighted rating1078.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1078.2
Current highest rating achieved1099.0
Current floor (min rating allowed)599.0
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)±197.2
Current Raw change used (final)0.0
Projected new Raw rating1078.2
Projected new Weighed rating991.9
Projected new Weighted performance504.9
Projected new final Raw rating (if new WP > new Raw)1078.2
Projected new highest rating1099.0
Projected new floor599.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1078.2
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 rating1170.6
Current Weighted rating1157.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1170.6
Current highest rating achieved1170.6
Current floor (min rating allowed)670.6
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)±172.9
Current Raw change used (final)0.0
Projected new Raw rating1170.6
Projected new Weighed rating1066.8
Projected new Weighted performance999.0
Projected new final Raw rating (if new WP > new Raw)1170.6
Projected new highest rating1170.6
Projected new floor670.6
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1170.6
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
1 2024 Gauteng Inter-Region Chess Championship (U18A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 1.5 1489.3 1475.4 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
12 2024 Gauteng Inter-Region Chess Championship (U18A) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 1.5 1489.3 1475.4 Analysis
11 JMC Closed Aug 2023 (U18+U20) 2023/08/04 2023/08/06 Johannesburg Metro (GJM) Standard 90 0.94 6 5 2.5 1486.9 1460.1 Analysis
10 JMC - The Higher Ground Restaurant 2nd Blitz Event 2023 2023/07/30 2023/07/30 Johannesburg Metro (GJM) Blitz 8 0.25 7 7 4.0 1492.8 1149.4 Analysis
9 JMC Trinity Little Falls 2023 (C) 2023/07/02 2023/07/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1492.8 1389.5 Analysis
8 JNW Open - Crawford 2023 (B) 2023/03/04 2023/03/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.5 1390.4 1322.2 Analysis
7 AG Visser Open 2023 (A+B) 2023/02/18 2023/02/18 Sedibeng (GSV) Standard 60 0.83 5 5 5.0 1240.8 1193.4 Analysis
6 Chess WP Individual Blitz 2023 (Open) 2023/01/03 2023/01/03 Cape Town (WCT) Blitz 5 0.18 7 7 4.0 1225.2 1040.2 Analysis
5 JMC 2nd Trials 2022 (B) 2022/08/27 2022/08/27 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1170.8 1131.0 Analysis
4 JMC Blitz Open 8 August 2022 (A) 2022/08/08 2022/08/08 Johannesburg Metro (GJM) Blitz 5 0.18 9 8 3.0 1170.8 1105.4 Analysis
3 JMC Trials 1 - Laerskool Fontainebleau 2022 (U16+U18) 2022/07/24 2022/07/24 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.5 1158.2 1105.4 Analysis
2 JMC Helpmekaar 2021 (U16) 2021/09/06 2021/09/06 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 2.5 1136.1 1099.0 Analysis
1 CWP Youth Day Rapid 2021 (U16) 2021/06/16 2021/06/16 Cape Town (WCT) Rapid 25 0.54 5 5 3.0 1105.4 1105.4 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 5 1 1 3 1.5 30.0 -170.0 1347.2 1177.2
White 2 0 1 1 0.5 25.0 -212.5 1259.3 1046.8
Black 3 1 0 2 1.0 33.3 -141.7 1405.7 1264.0
Standard All 5 1 1 3 1.5 30.0 -170.0 1347.2 1177.2
White 2 0 1 1 0.5 25.0 -212.5 1259.3 1046.8
Black 3 1 0 2 1.0 33.3 -141.7 1405.7 1264.0
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 67 34 6 27 37.0 55.2 44.4 1397.7 1442.1
White 32 18 4 10 20.0 62.5 106.3 1400.2 1506.5
Black 35 16 2 17 17.0 48.6 -12.1 1395.3 1383.2
Standard All 35 18 5 12 20.5 58.6 72.9 1375.9 1448.8
White 17 9 3 5 10.5 61.8 100.0 1368.5 1468.5
Black 18 9 2 7 10.0 55.6 47.2 1383.0 1430.2
Rapid All 10 5 1 4 5.5 55.0 42.5 1278.1 1320.6
White 5 3 1 1 3.5 70.0 170.0 1269.1 1439.1
Black 5 2 0 3 2.0 40.0 -85.0 1287.1 1202.1
Blitz All 22 11 0 11 11.0 50.0 0.0 1486.6 1486.6
White 10 6 0 4 6.0 60.0 85.0 1519.9 1604.9
Black 12 5 0 7 5.0 41.7 -70.8 1458.9 1388.1
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 107078828 Johnson, C (Caleb) 2 0.5 0 1 1 25.0 1311.5 -212.5 1099.0 View list
2 108082807 Joseph, J (Jamie) 2 0.5 0 1 1 25.0 1325.5 -212.5 1113.0 View list
3 107069948 Jones, W (William) 2 0.0 0 0 2 0.0 1322.6 -425.0 897.6 View list
4 1100111138 Akker, D (Dylan) 1 1.0 1 0 0 100.0 1492.8 425.0 1917.8 View list
5 1080149205 Cech, S (Samuel) 1 1.0 1 0 0 100.0 1492.8 425.0 1917.8 View list
6 2080143806 Butler, K (Kayla) 1 1.0 1 0 0 100.0 1158.2 425.0 1583.2 View list
7 111092267 D`Alton, E (Ezra) 1 1.0 1 0 0 100.0 1492.8 425.0 1917.8 View list
8 2930100456 Chiriya, T (Takudzwa) 1 1.0 1 0 0 100.0 1225.2 425.0 1650.2 View list
9 208071873 Chinoruma, T (Tawana) 1 1.0 1 0 0 100.0 1170.8 425.0 1595.8 View list
10 1100148957 Gorrie, D (Dylan) 1 1.0 1 0 0 100.0 1225.2 425.0 1650.2 View list
11 204079859 Fauconier, C (Caley) 1 1.0 1 0 0 100.0 1486.9 425.0 1911.9 View list
12 108056512 Huisamen, D (De Villiers) 1 1.0 1 0 0 100.0 1240.8 425.0 1665.8 View list
13 1050133990 Hogeweg, A (Aidan) 1 1.0 1 0 0 100.0 1390.4 425.0 1815.4 View list
14 1110148956 Barter, A (Adam) 1 1.0 1 0 0 100.0 1225.2 425.0 1650.2 View list
15 1080136704 Klaas, O (Oyintanda) 1 1.0 1 0 0 100.0 1492.8 425.0 1917.8 View list
16 105091618 Ma, B (Ben) 1 1.0 1 0 0 100.0 1240.8 425.0 1665.8 View list
17 2090108309 Maharaj, A (Anaamika) 1 1.0 1 0 0 100.0 1170.8 425.0 1595.8 View list
18 106092874 Mangana, K (Keratilwe) 1 1.0 1 0 0 100.0 1136.1 425.0 1561.1 View list
19 188022492 Meere, GR (Gerhard) 1 1.0 1 0 0 100.0 1240.8 425.0 1665.8 View list
20 2120115959 Mungal, Z (Zoey) 1 1.0 1 0 0 100.0 1390.4 425.0 1815.4 View list