Player Page

Van Der Ross, E (Ezra)
Dob: 2004/10/24 (Adult)
Gender: Male
Chess SA id: 1040153930
FIDE id:
Region: Lejweleputswa (FLW)
Citizen: RSA
Title(s):
Last active: 2024/09/21 (65 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 rating1274.3
Current Weighted rating1237.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1274.3
Current highest rating achieved1274.3
Current floor (min rating allowed)774.3
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)±149.2
Current Raw change used (final)0.0
Projected new Raw rating1274.3
Projected new Weighed rating1138.8
Projected new Weighted performance1162.3
Projected new final Raw rating (if new WP > new Raw)1274.3
Projected new highest rating1274.3
Projected new floor774.3
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1274.3
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 rating1285.0
Current Weighted rating1242.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1285.0
Current highest rating achieved1285.0
Current floor (min rating allowed)785.0
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)±146.9
Current Raw change used (final)0.0
Projected new Raw rating1285.0
Projected new Weighed rating1144.1
Projected new Weighted performance1162.3
Projected new final Raw rating (if new WP > new Raw)1285.0
Projected new highest rating1285.0
Projected new floor785.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1285.0
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 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
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.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
2 Lejweleputswa Closed Chess Championships 2024 (Senior) 2024/09/21 2024/09/21 Lejweleputswa (FLW) Standard 63 0.84 5 4 2.0 1242.9 1249.4 Analysis
1 Lejweleputswa 3rd Qualifieng Tournament 2024 (Open) 2024/04/20 2024/04/20 Lejweleputswa (FLW) Standard 63 0.84 5 5 3.0 1223.8 1227.8 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Lejweleputswa Closed Chess Championships 2024 (Senior) 2024/09/21 2024/09/21 Lejweleputswa (FLW) Standard 63 0.84 5 4 2.0 1242.9 1249.4 Analysis
3 Lejweleputswa 3rd Qualifieng Tournament 2024 (Open) 2024/04/20 2024/04/20 Lejweleputswa (FLW) Standard 63 0.84 5 5 3.0 1223.8 1227.8 Analysis
2 Lejweleputswa 4th Qualifying Tournament 2023 (A) 2023/05/26 2023/05/26 Lejweleputswa (FLW) Standard 63 0.84 5 5 2.5 1205.1 1205.8 Analysis
1 Lejweleputswa 3rd Qualifieng Tournament 2023 (A) 2023/04/22 2023/04/22 Lejweleputswa (FLW) Standard 63 0.84 5 4 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 9 5 0 4 5.0 55.6 47.2 1356.1 1403.3
White 4 1 0 3 1.0 25.0 -212.5 1381.9 1169.4
Black 5 4 0 1 4.0 80.0 255.0 1335.4 1590.4
Standard All 9 5 0 4 5.0 55.6 47.2 1356.1 1403.3
White 4 1 0 3 1.0 25.0 -212.5 1381.9 1169.4
Black 5 4 0 1 4.0 80.0 255.0 1335.4 1590.4
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 18 9 1 8 9.5 52.8 23.6 1319.3 1342.9
White 9 5 0 4 5.0 55.6 47.2 1290.7 1337.9
Black 9 4 1 4 4.5 50.0 0.0 1348.0 1348.0
Standard All 18 9 1 8 9.5 52.8 23.6 1319.3 1342.9
White 9 5 0 4 5.0 55.6 47.2 1290.7 1337.9
Black 9 4 1 4 4.5 50.0 0.0 1348.0 1348.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 101032356 Rode, CM (Christoph) 2 1.0 1 0 1 50.0 1224.0 0.0 1224.0 View list
2 105065552 Pillay, D (Diveshan) 2 0.0 0 0 2 0.0 1202.5 -425.0 777.5 View list
3 1060154359 De Welzim, S (Seth) 1 1.0 1 0 0 100.0 1223.8 425.0 1648.8 View list
4 1910152745 Du Preez, L (Lourens) 1 1.0 1 0 0 100.0 1205.1 425.0 1630.1 View list
5 1050152747 Phakoe, L (Lehlohonolo) 1 1.0 1 0 0 100.0 1205.1 425.0 1630.1 View list
6 1050108089 Adnan, A (Ali) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
7 1060147239 Taaibos, B (Brain) 1 1.0 1 0 0 100.0 1223.8 425.0 1648.8 View list
8 1700139337 Seutloali, T (Thabiso) 1 1.0 1 0 0 100.0 1242.9 425.0 1667.9 View list
9 1030302033 Qinisa, L (Lunga) 1 1.0 1 0 0 100.0 1223.8 425.0 1648.8 View list
10 205068071 Michalakis, G (Gina) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
11 100020068 Malan, MJ (Mathys) 1 0.5 0 1 0 50.0 1205.1 0.0 1205.1 View list
12 1050153929 Kunene, M (Mpumelelo) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
13 1720302032 Mokhothu, N (Neo) 1 0.0 0 0 1 0.0 1223.8 -425.0 798.8 View list
14 170023040 Michalakis, K (Kiriakos) 1 0.0 0 0 1 0.0 1242.9 -425.0 817.9 View list
15 104083569 Dlamini, V (Valentino) 1 0.0 0 0 1 0.0 1242.9 -425.0 817.9 View list
16 106076081 Bhagwandeen, D (Daksh) 1 0.0 0 0 1 0.0 1223.8 -425.0 798.8 View list