Player Page

Roos, J (Joshua)
Dob: 2010/03/05 (U16)
Gender: Male
Chess SA id: 1100118991
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2023/05/26 (546 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 rating1132.9
Current Weighted rating1131.0
Current Weighted performance793.0
Current official/published rating (highest between Raw, WR and WP)1132.9
Current highest rating achieved1180.7
Current floor (min rating allowed)680.7
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)±182.4
Current Raw change used (final)0.0
Projected new Raw rating1132.9
Projected new Weighed rating1041.0
Projected new Weighted performance793.0
Projected new final Raw rating (if new WP > new Raw)1132.9
Projected new highest rating1180.7
Projected new floor680.7
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1132.9
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 rating1128.4
Current Weighted rating1125.8
Current Weighted performance733.7
Current official/published rating (highest between Raw, WR and WP)1128.4
Current highest rating achieved1172.8
Current floor (min rating allowed)672.8
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)±183.6
Current Raw change used (final)0.0
Projected new Raw rating1128.4
Projected new Weighed rating1036.4
Projected new Weighted performance733.7
Projected new final Raw rating (if new WP > new Raw)1128.4
Projected new highest rating1172.8
Projected new floor672.8
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1128.4
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 rating1180.0
Current Weighted rating1180.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1180.0
Current highest rating achieved1180.0
Current floor (min rating allowed)680.0
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)±170.6
Current Raw change used (final)0.0
Projected new Raw rating1180.0
Projected new Weighed rating1085.6
Projected new Weighted performance242.6
Projected new final Raw rating (if new WP > new Raw)1180.0
Projected new highest rating1180.0
Projected new floor680.0
Projected new K-facor40
Projected new official/published rating (highest between new Raw, new WR and new WP)1180.0
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 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
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
6 Gauteng Schools Individual Finals 2023 (U13 Boys) 2023/05/26 2023/05/26 Ekurhuleni (GE) Standard 60 0.83 5 4 1.0 1095.7 1076.0 Analysis
5 D2 Schools Individuals 2023 (U13 Boys) 2023/05/13 2023/05/13 West Rand (GWR) Standard 60 0.83 5 4 3.0 1095.7 1076.0 Analysis
4 2022 East Dist Individuals (U13) 2022/03/12 2022/03/12 Cape Town (WCT) Rapid 45 0.74 6 6 2.5 1095.1 1200.0 Analysis
3 2020 Cape Of Good Hope Open (Open) 2020/02/21 2020/02/23 Cape Town (WCT) Standard 70 0.87 6 6 0.0 1180.7 1172.8 Analysis
2 2020 East District Individuals (U11) 2020/01/31 2020/02/01 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1180.7 1172.8 Analysis
1 The Manhattan Sweets & Super C National Chess Tournament 2019 (U9) 2019/09/06 2019/09/07 Cape Winelands (WCW) Standard 60 0.83 5 4 1.5 1200.0 1200.0 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 30 10 2 18 11.0 36.7 -113.3 1204.4 1091.1
White 15 6 1 8 6.5 43.3 -56.7 1215.2 1158.5
Black 15 4 1 10 4.5 30.0 -170.0 1193.7 1023.7
Standard All 24 8 1 15 8.5 35.4 -124.0 1213.2 1089.2
White 12 5 0 7 5.0 41.7 -70.8 1220.7 1149.9
Black 12 3 1 8 3.5 29.2 -177.1 1205.6 1028.5
Rapid All 6 2 1 3 2.5 41.7 -70.8 1169.5 1098.7
White 3 1 1 1 1.5 50.0 0.0 1192.9 1192.9
Black 3 1 0 2 1.0 33.3 -141.7 1146.1 1004.5
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 1100156265 Mahachi, N (Nelson) 1 1.0 1 0 0 100.0 1095.7 425.0 1520.7 View list
2 2090130358 Mana, I (Indiphile) 1 1.0 1 0 0 100.0 1180.7 425.0 1605.7 View list
3 1100156276 Mothupi, R (Reotshepile) 1 1.0 1 0 0 100.0 1095.7 425.0 1520.7 View list
4 2090130363 Mncubela, Z (Zothando) 1 1.0 1 0 0 100.0 1180.7 425.0 1605.7 View list
5 1100138819 Lewis, C (Cayden Peter) 1 1.0 1 0 0 100.0 1095.1 425.0 1520.1 View list
6 2090130357 Le Roux, O (Olivia) 1 1.0 1 0 0 100.0 1180.7 425.0 1605.7 View list
7 1100138815 Kai, R (Rigby) 1 1.0 1 0 0 100.0 1095.1 425.0 1520.1 View list
8 1110115390 Jonker, R (Reagan) 1 1.0 1 0 0 100.0 1095.7 425.0 1520.7 View list
9 1110145787 Pindani, L (Luvuyo Gratitute) 1 1.0 1 0 0 100.0 1095.7 425.0 1520.7 View list
10 2120118993 Webb, A (Amori) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
11 210089298 Fouche, E (Elke) 1 0.5 0 1 0 50.0 1200.0 0.0 1200.0 View list
12 1100147492 Olieslaer, W (Waylin) 1 0.5 0 1 0 50.0 1095.1 0.0 1095.1 View list
13 1090130562 Mishra, P (Parth) 1 0.0 0 0 1 0.0 1180.7 -425.0 755.7 View list
14 1100155350 Manqoba, S (Sandile) 1 0.0 0 0 1 0.0 1095.7 -425.0 670.7 View list
15 1100130359 Manickum, A (Aneiran) 1 0.0 0 0 1 0.0 1095.1 -425.0 670.1 View list
16 1100155347 Malona, B (Bokang) 1 0.0 0 0 1 0.0 1095.7 -425.0 670.7 View list
17 1090106466 Luyendyk, J (Jude) 1 0.0 0 0 1 0.0 1180.7 -425.0 755.7 View list
18 1100106743 Joubert, L (Liam) 1 0.0 0 0 1 0.0 1180.7 -425.0 755.7 View list
19 108087782 Jonkers, T (Tristan) 1 0.0 0 0 1 0.0 1180.7 -425.0 755.7 View list
20 1090130350 Du Bois, L (Luke) 1 0.0 0 0 1 0.0 1180.7 -425.0 755.7 View list