Player Page

Roos, E (Ewan)
Dob: 2013/06/07 (U12)
Gender: Male
Chess SA id: 1130134053
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/10/04 (33 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 rating1464.6
Current Weighted rating1314.3
Current Weighted performance1438.9
Current official/published rating (highest between Raw, WR and WP)1464.6
Current highest rating achieved1479.5
Current floor (min rating allowed)979.5
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)±113.7
Current Raw change used (final)0.0
Projected new Raw rating1464.6
Projected new Weighed rating1211.0
Projected new Weighted performance1438.9
Projected new final Raw rating (if new WP > new Raw)1464.6
Projected new highest rating1479.5
Projected new floor979.5
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1464.6
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 rating1458.6
Current Weighted rating1307.1
Current Weighted performance1438.9
Current official/published rating (highest between Raw, WR and WP)1458.6
Current highest rating achieved1476.8
Current floor (min rating allowed)976.8
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)±114.7
Current Raw change used (final)0.0
Projected new Raw rating1458.6
Projected new Weighed rating1204.5
Projected new Weighted performance1438.9
Projected new final Raw rating (if new WP > new Raw)1458.6
Projected new highest rating1476.8
Projected new floor976.8
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1458.6
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
10 Gauteng Top Schools 2024 (U11 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1479.5 1476.8 Analysis
9 2024 Etienne Lewis (U12) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 7 5.5 1437.6 1432.3 Analysis
8 Gauteng Schools Individuals Finals 2024 (U11 Boys) 2024/08/16 2024/08/16 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1437.6 1432.3 Analysis
7 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U11A) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1401.9 1397.3 Analysis
6 2024 Elise Steenkamp Open Chess Tournament (Rooks) 2024/06/15 2024/06/15 Tshwane (GTP) Standard 90 0.94 5 5 4.0 1358.0 1353.4 Analysis
5 2024 Tshwane South School District CLOSED Individual Championships (U11 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1291.6 1289.8 Analysis
4 2024 KSNG CHess Academy Open Tournament (D2) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1235.4 1227.5 Analysis
3 2024 Tshwane Chess AHS Open Chess Tournament (C1) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1232.7 1222.1 Analysis
2 2024 Tshwane Chess OPEN Registration Tournament (C2) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 1.0 1207.0 1196.5 Analysis
1 2024 Gauteng Inter-Region Chess Championship (U12C) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1207.0 1196.5 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
30 Gauteng Top Schools 2024 (U11 Open) 2024/10/04 2024/10/04 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1479.5 1476.8 Analysis
29 2024 Etienne Lewis (U12) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 7 5.5 1437.6 1432.3 Analysis
28 Gauteng Schools Individuals Finals 2024 (U11 Boys) 2024/08/16 2024/08/16 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1437.6 1432.3 Analysis
27 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U11A) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1401.9 1397.3 Analysis
26 2024 Elise Steenkamp Open Chess Tournament (Rooks) 2024/06/15 2024/06/15 Tshwane (GTP) Standard 90 0.94 5 5 4.0 1358.0 1353.4 Analysis
25 2024 Tshwane South School District CLOSED Individual Championships (U11 Mixed) 2024/05/11 2024/05/11 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1291.6 1289.8 Analysis
24 2024 KSNG CHess Academy Open Tournament (D2) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1235.4 1227.5 Analysis
23 2024 Tshwane Chess AHS Open Chess Tournament (C1) 2024/02/24 2024/02/24 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1232.7 1222.1 Analysis
22 2024 Tshwane Chess OPEN Registration Tournament (C2) 2024/01/27 2024/01/27 Tshwane (GTP) Standard 60 0.83 5 5 1.0 1207.0 1196.5 Analysis
21 2024 Gauteng Inter-Region Chess Championship (U12C) 2024/01/13 2024/01/14 Tshwane (GTP) Standard 90 0.94 5 5 4.5 1207.0 1196.5 Analysis
20 Lardies Open Tournament 2023 (C) 2023/10/28 2023/10/28 Tshwane (GTP) Standard 60 0.83 5 4 1.0 1223.1 1214.1 Analysis
19 2023 Etienne Lewis Closed Tournament (U12) 2023/08/25 2023/08/27 Tshwane (GTP) Standard 90 0.94 7 5 3.5 1196.4 1185.3 Analysis
18 2023 Tshwane South School District CLOSED League Championship (U11) 2023/07/29 2023/07/29 Tshwane (GTP) Standard 60 0.83 5 4 2.0 1191.0 1174.9 Analysis
17 2023 Lubowski Open Tournament (C) 2023/06/24 2023/06/25 Tshwane (GTP) Standard 90 0.94 5 4 0.0 1261.0 1248.3 Analysis
16 2023 Tshwane South School District CLOSED Individual Championships (U11 Open) 2023/04/22 2023/04/22 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1254.4 1236.1 Analysis
15 Chris Greyling Open Tournament 2023 (C) 2023/03/21 2023/03/21 Tshwane (GTP) Standard 60 0.83 5 5 1.5 1348.2 1348.4 Analysis
14 Tuks Junior Developmental Chess Tournament 2023 (Blue) 2023/03/18 2023/03/18 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1348.2 1348.4 Analysis
13 2022 Gauteng Schools Team Championships (U9 Open) 2022/08/27 2022/08/27 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1350.3 1349.3 Analysis
12 D4 Play Offs 2022 (U9) 2022/07/30 2022/07/30 Tshwane (GTP) Standard 60 0.83 5 5 5.0 1284.9 1277.9 Analysis
11 2022 Menlo Open Tournament (D) 2022/07/23 2022/07/23 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1284.9 1277.9 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 52 34 2 16 35.0 67.3 147.1 1278.7 1425.9
White 26 17 0 9 17.0 65.4 130.8 1299.8 1430.5
Black 26 17 2 7 18.0 69.2 163.5 1257.7 1421.2
Standard All 52 34 2 16 35.0 67.3 147.1 1278.7 1425.9
White 26 17 0 9 17.0 65.4 130.8 1299.8 1430.5
Black 26 17 2 7 18.0 69.2 163.5 1257.7 1421.2
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 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 146 87 4 55 89.0 61.0 93.2 1227.8 1320.9
White 70 42 1 27 42.5 60.7 91.1 1235.6 1326.7
Black 76 45 3 28 46.5 61.2 95.1 1220.6 1315.6
Standard All 146 87 4 55 89.0 61.0 93.2 1227.8 1320.9
White 70 42 1 27 42.5 60.7 91.1 1235.6 1326.7
Black 76 45 3 28 46.5 61.2 95.1 1220.6 1315.6
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 1130134043 De Bruin, H (Hanno) 3 3.0 3 0 0 100.0 1320.9 425.0 1745.9 View list
2 1120133903 Buchner, E (Emil) 3 3.0 3 0 0 100.0 1252.9 425.0 1677.9 View list
3 1130134041 Botha, L (Logan) 3 3.0 3 0 0 100.0 1256.6 425.0 1681.6 View list
4 2120130097 Padayachy, V (Vidya) 3 2.0 2 0 1 66.7 1235.4 141.7 1377.1 View list
5 2130134040 Botha, L (Lincke) 2 2.0 2 0 0 100.0 1234.3 425.0 1659.3 View list
6 1140159601 Crous, A (Aiden) 2 2.0 2 0 0 100.0 1397.8 425.0 1822.8 View list
7 1120119998 Horne, K (Kian Louis) 2 2.0 2 0 0 100.0 1277.2 425.0 1702.2 View list
8 1120139917 Kruger, B (Brenden) 2 1.5 1 1 0 75.0 1201.7 212.5 1414.2 View list
9 1130133911 Butner, J (James) 2 1.0 1 0 1 50.0 1296.8 0.0 1296.8 View list
10 1120133904 Fokker, CD (Christiaan Dirk) 2 1.0 1 0 1 50.0 1267.4 0.0 1267.4 View list
11 1130131224 Minny, O (Oban) 2 1.0 1 0 1 50.0 1224.5 0.0 1224.5 View list
12 1130136642 Ottermann, E (Erik) 2 1.0 1 0 1 50.0 1317.6 0.0 1317.6 View list
13 1120137394 Du Bruyn, D (Dylan) 2 0.5 0 1 1 25.0 1301.3 -212.5 1088.8 View list
14 2120108352 De Swardt, M (Mieke) 2 0.0 0 0 2 0.0 1296.5 -425.0 871.5 View list
15 1140135082 Janse Van Rensburg, J (Josh) 2 0.0 0 0 2 0.0 1440.7 -425.0 1015.7 View list
16 1130152987 Mann, I (Iowan) 2 0.0 0 0 2 0.0 1397.8 -425.0 972.8 View list
17 1130119626 Ndebele, AT (Akhumzi Thandolwenkosi) 2 0.0 0 0 2 0.0 1234.3 -425.0 809.3 View list
18 2140149175 Boshoff, M (Milah) 1 1.0 1 0 0 100.0 1437.6 425.0 1862.6 View list
19 1070135509 Blom, J (Jess) 1 1.0 1 0 0 100.0 1348.2 425.0 1773.2 View list
20 1130141649 Bight, C (Chase) 1 1.0 1 0 0 100.0 1284.9 425.0 1709.9 View list