Player Page

Naidoo, R (Rayna)
Dob: 2001/08/23 (Adult)
Gender: Female
Chess SA id: 201026583
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2019/07/22 (1761 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 rating1373.5
Curent Weighted rating1373.5
Curent Weighted performance435.4
Current official/published rating (highest between Raw, WR and WP)1373.5
Current floor (min rating allowed)873.5
Current highest rating achieved1373.5
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)±129.5
Current Raw change used (final)0.0
Projected new Raw rating1373.5
Projected new Weighed rating1373.5
Projected new Weighted performance435.4
Projected new official/published rating (highest between new Raw, new WR and new WP)1373.5
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1373.5
Projected new floor873.5
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 rating1368.7
Curent Weighted rating1368.7
Curent Weighted performance426.5
Current official/published rating (highest between Raw, WR and WP)1368.7
Current floor (min rating allowed)868.7
Current highest rating achieved1368.7
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)±130.4
Current Raw change used (final)0.0
Projected new Raw rating1368.7
Projected new Weighed rating1368.7
Projected new Weighted performance426.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1368.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1368.7
Projected new floor868.7
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 rating1220.8
Curent Weighted rating1220.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1220.8
Current floor (min rating allowed)732.0
Current highest rating achieved1232.0
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)±161.0
Current Raw change used (final)0.0
Projected new Raw rating1220.8
Projected new Weighed rating1220.8
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)1220.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1232.0
Projected new floor732.0
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 rating1189.1
Curent Weighted rating1189.1
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1189.1
Current floor (min rating allowed)732.0
Current highest rating achieved1232.0
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)±168.4
Current Raw change used (final)0.0
Projected new Raw rating1189.1
Projected new Weighed rating1189.1
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1189.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1232.0
Projected new floor732.0
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
16 JHB North High School League 2019 2019/02/19 2019/07/22 Chess Excellence (CEX) Standard 60 0.83 5 2 2.0 1354.4 1344.9 Analysis
15 2018 Inter Region Chess Championships 2018/12/21 2018/12/24 4 Knights (4K) Standard 120 1.00 7 6 1.5 1325.0 1319.0 Analysis
14 South African Junior Blitz 2018 (U18) 2018/12/19 2018/12/19 4 Knights (4K) Blitz 5 0.18 7 7 4.0 1325.0 1220.8 Analysis
13 South African Junior Team Championships 2018 (U18A) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 5.0 1325.0 1319.0 Analysis
12 World Youth Chess Championships 2018 2018/10/20 2018/10/30 Greece (GRE) Standard 150 1.00 11 10 3.0 1279.1 1274.4 Analysis
11 Inter Region GE vs JHB Metro 2018 (U18+U20) 2018/10/06 2018/10/06 Ekurhuleni (GE) Standard 60 0.83 5 5 2.0 1279.1 1274.4 Analysis
10 JNW Club - Helpmekaar Open 2018 (B) 2018/09/15 2018/09/15 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1319.1 1324.4 Analysis
9 JNW Club - Maragon Open 2018 (B) 2018/08/04 2018/08/04 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1325.1 1332.0 Analysis
8 JHB Metro Junior Closed 2018 (Open) 2018/07/28 2018/07/29 Johannesburg Metro (GJM) Standard 90 0.94 6 6 3.5 1332.2 1342.4 Analysis
7 2018 Capablanca Swiss (B) 2018/04/27 2018/04/29 Tshwane (GTP) Standard 90 0.94 7 7 4.0 1215.5 1213.2 Analysis
6 2018 Chris Greyling Open (B) 2018/04/21 2018/04/21 Tshwane (GTP) Standard 60 0.83 5 5 3.5 1215.5 1213.2 Analysis
5 2018 South African Junior Closed Chess Championships (U18 Girls) 2018/04/01 2018/04/07 Chess South Africa (CSA) Standard 120 1.00 11 11 7.0 1215.5 1213.2 Analysis
4 JNW Club - Trinityhouse Randpark Ridge Open 2018 (B) 2018/03/24 2018/03/24 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1281.5 1293.8 Analysis
3 2018 Volkskool Open (A) 2018/02/17 2018/02/17 Sedibeng (GSV) Standard 60 0.83 5 5 2.0 1246.2 1252.8 Analysis
2 JNW Club - Bryanston Open 2018 (B) 2018/01/26 2018/01/27 Johannesburg Metro (GJM) Standard 65 0.85 6 6 4.0 1220.8 1220.8 Analysis
1 South African Junior Team Championships 2017 (U18A) 2018/01/04 2018/01/08 4 Knights (4K) Standard 120 1.00 7 6 3.0 1220.8 1220.8 Analysis
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 98 45 13 40 51.5 52.6 21.7 1302.7 1324.4
White 52 25 5 22 27.5 52.9 24.5 1289.7 1314.2
Black 46 20 8 18 24.0 52.2 18.5 1317.5 1336.0
Standard All 91 42 11 38 47.5 52.2 18.7 1296.2 1314.9
White 49 24 4 21 26.0 53.1 26.0 1290.4 1316.4
Black 42 18 7 17 21.5 51.2 10.1 1303.1 1313.2
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 7 3 2 2 4.0 57.1 60.7 1387.4 1448.1
White 3 1 1 1 1.5 50.0 0.0 1278.3 1278.3
Black 4 2 1 1 2.5 62.5 106.3 1469.3 1575.5
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 201044679 Dinham, M (Megan) 2 1.5 1 1 0 75.0 1325.0 212.5 1537.5 View list
2 102027765 Nieuwoudt, H (Hanno) 2 1.0 1 0 1 50.0 1270.3 0.0 1270.3 View list
3 201043193 Wolmarans, R (Riekie) 2 1.0 0 2 0 50.0 1230.8 0.0 1230.8 View list
4 201039926 Van Heerden, L (Lara) 2 0.5 0 1 1 25.0 1215.5 -212.5 1003.0 View list
5 102014657 Joule, EJ (Ethan) 2 0.0 0 0 2 0.0 1305.7 -425.0 880.7 View list
6 188023581 Moche, J (Johannes) 2 0.0 0 0 2 0.0 1285.6 -425.0 860.6 View list
7 107046393 Fourie, K (Keanan) 1 1.0 1 0 0 100.0 1215.5 425.0 1640.5 View list
8 200007735 Du Plessis, AC (Anika) 1 1.0 1 0 0 100.0 1215.5 425.0 1640.5 View list
9 102005069 Coertzen, D (Dylan) 1 1.0 1 0 0 100.0 1325.1 425.0 1750.1 View list
10 103071924 De Beer, T (Thinus) 1 1.0 1 0 0 100.0 1215.5 425.0 1640.5 View list
11 206006270 De Beer, MA (Mignonne) 1 1.0 1 0 0 100.0 1281.5 425.0 1706.5 View list
12 101001101 Bain, J (Jonathan) 1 1.0 1 0 0 100.0 1325.0 425.0 1750.0 View list
13 106064421 Brandt, DW (Declan William) 1 1.0 1 0 0 100.0 1220.8 425.0 1645.8 View list
14 173086742 Botha, JF (Julian) 1 1.0 1 0 0 100.0 1281.5 425.0 1706.5 View list
15 203010232 Gardiner, N (Noa) 1 1.0 1 0 0 100.0 1220.8 425.0 1645.8 View list
16 201010836 Gouws, KM (Karla) 1 1.0 1 0 0 100.0 1215.5 425.0 1640.5 View list
17 201078484 Janse Van Rensburg, N (Natasha) 1 1.0 1 0 0 100.0 1215.5 425.0 1640.5 View list
18 299014717 Jurisich, A (Ashley) 1 1.0 1 0 0 100.0 1220.8 425.0 1645.8 View list
19 201015184 Kettledas, DT (Danielle) 1 1.0 1 0 0 100.0 1215.5 425.0 1640.5 View list
20 102068280 Kippen, R (Ryan) 1 1.0 1 0 0 100.0 1325.0 425.0 1750.0 View list