Player Page

Roberts, I (Iwan)
Dob: 2012/04/26 (U14)
Gender: Male
Chess SA id: 1120109662
FIDE id:
Region: Eden (WEG)
Citizen: RSA
Title(s):
Last active: 2024/05/05 (81 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 rating1552.8
Current Weighted rating1542.4
Current Weighted performance1446.5
Current official/published rating (highest between Raw, WR and WP)1552.8
Current highest rating achieved1578.3
Current floor (min rating allowed)1078.3
Current K-factor32
Games played this month-4
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)±100.3
Current Raw change used (final)0.0
Projected new Raw rating1552.8
Projected new Weighed rating1420.9
Projected new Weighted performance1446.5
Projected new final Raw rating (if new WP > new Raw)1552.8
Projected new highest rating1578.3
Projected new floor1078.3
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1552.8
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 rating1540.3
Current Weighted rating1544.7
Current Weighted performance1499.0
Current official/published rating (highest between Raw, WR and WP)1544.7
Current highest rating achieved1580.6
Current floor (min rating allowed)1080.6
Current K-factor32
Games played this month-4
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)±102.1
Current Raw change used (final)0.0
Projected new Raw rating1540.3
Projected new Weighed rating1422.7
Projected new Weighted performance1499.0
Projected new final Raw rating (if new WP > new Raw)1540.3
Projected new highest rating1580.6
Projected new floor1080.6
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1540.3
Projected effective change (new Official - current Official)-4.4
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 rating1329.7
Current Weighted rating1329.6
Current Weighted performance1208.8
Current official/published rating (highest between Raw, WR and WP)1329.7
Current highest rating achieved1373.6
Current floor (min rating allowed)873.6
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)±137.8
Current Raw change used (final)0.0
Projected new Raw rating1329.7
Projected new Weighed rating1223.3
Projected new Weighted performance1208.8
Projected new final Raw rating (if new WP > new Raw)1329.7
Projected new highest rating1373.6
Projected new floor873.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1329.7
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 rating1323.2
Current Weighted rating1301.5
Current Weighted performance1398.9
Current official/published rating (highest between Raw, WR and WP)1398.9
Current highest rating achieved1365.3
Current floor (min rating allowed)865.3
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)±139.1
Current Raw change used (final)0.0
Projected new Raw rating1323.2
Projected new Weighed rating1200.4
Projected new Weighted performance1398.9
Projected new final Raw rating (if new WP > new Raw)1398.9
Projected new highest rating1398.9
Projected new floor898.9
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1398.9
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
6 Western Cape PS Individuals Championship 2024 (U13 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 4.5 1547.8 1542.2 Analysis
5 Western Cape Inter Region Cup 2024 (U14 Boys) 2024/03/23 2024/03/24 Overberg (WOS) Standard 90 0.94 5 5 3.0 1561.6 1566.5 Analysis
4 Western Cape Inter Region Cup 2024 (Blitz) 2024/03/22 2024/03/22 Overberg (WOS) Blitz 5 0.18 7 7 3.0 1561.6 1365.3 Analysis
3 Eden School Chess Trials 1 2024 (U13 Boys) 2024/03/09 2024/03/09 Eden District (WEG) Standard 60 0.83 5 5 4.0 1561.6 1566.5 Analysis
2 Hessequa Skole Proewe 2 2024 (U13 Boys) 2024/02/03 2024/02/03 Eden District (WEG) Standard 60 0.83 5 5 5.0 1543.8 1546.0 Analysis
1 Hessequa Proewe 1 2024 (U13 Boys) 2024/01/27 2024/01/27 Eden District (WEG) Standard 60 0.83 5 5 4.0 1545.4 1548.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
50 Western Cape PS Individuals Championship 2024 (U13 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 4.5 1547.8 1542.2 Analysis
49 Western Cape Inter Region Cup 2024 (U14 Boys) 2024/03/23 2024/03/24 Overberg (WOS) Standard 90 0.94 5 5 3.0 1561.6 1566.5 Analysis
48 Western Cape Inter Region Cup 2024 (Blitz) 2024/03/22 2024/03/22 Overberg (WOS) Blitz 5 0.18 7 7 3.0 1561.6 1365.3 Analysis
47 Eden School Chess Trials 1 2024 (U13 Boys) 2024/03/09 2024/03/09 Eden District (WEG) Standard 60 0.83 5 5 4.0 1561.6 1566.5 Analysis
46 Hessequa Skole Proewe 2 2024 (U13 Boys) 2024/02/03 2024/02/03 Eden District (WEG) Standard 60 0.83 5 5 5.0 1543.8 1546.0 Analysis
45 Hessequa Proewe 1 2024 (U13 Boys) 2024/01/27 2024/01/27 Eden District (WEG) Standard 60 0.83 5 5 4.0 1545.4 1548.6 Analysis
44 2023 Western Cape Rural Cup (U12) 2023/12/09 2023/12/10 Cape Winelands (WCW) Standard 60 0.83 5 4 2.5 1559.6 1565.9 Analysis
43 2023 Western Cape Rural Cup (Blitz) 2023/12/08 2023/12/08 Cape Winelands (WCW) Blitz 5 0.18 7 7 3.5 1559.6 1335.8 Analysis
42 Western Cape Club Championships 2023 (Tier 2) 2023/10/21 2023/10/22 Eden District (WEG) Standard 65 0.85 5 5 4.0 1556.6 1564.3 Analysis
41 Eden Top Schools 2023 (U11 Mix) 2023/08/19 2023/08/19 Eden District (WEG) Standard 60 0.83 5 5 3.0 1571.5 1580.6 Analysis
40 Duivenhoks Biblioteek Blitz 2023 (Dag 5 A) 2023/07/07 2023/07/07 Eden District (WEG) Blitz 5 0.18 6 6 6.0 1553.6 1160.4 Analysis
39 Duivenhoks Biblioteek Blitz 2023 (Dag 4 A) 2023/07/06 2023/07/06 Eden District (WEG) Blitz 5 0.18 5 5 5.0 1553.6 1160.4 Analysis
38 Duivenhoks Biblioteek Blitz 2023 (Dag 3 A) 2023/07/05 2023/07/05 Eden District (WEG) Blitz 5 0.18 5 5 5.0 1553.6 1160.4 Analysis
37 Knysna Oyster Festival 2023 (Juniors) 2023/07/01 2023/07/01 Eden District (WEG) Rapid 30 0.60 6 6 4.5 1553.6 1290.8 Analysis
36 George Chess Club Winter Open 2023 (C) 2023/05/20 2023/05/20 Eden District (WEG) Standard 60 0.83 5 5 3.0 1483.2 1513.7 Analysis
35 Western Cape PS Individuals 2023 (U11 Boys) 2023/05/05 2023/05/06 Cape Town (WCT) Standard 60 0.83 6 6 4.0 1483.2 1513.7 Analysis
34 Hermanus Rapid 2023 (B) 2023/04/22 2023/04/22 Overberg (WOS) Rapid 25 0.54 6 6 2.0 1578.3 1373.6 Analysis
33 Eden Trials 2+3 2023 (U12) 2023/04/15 2023/05/13 Eden District (WEG) Standard 60 0.83 10 9 8.0 1483.2 1513.7 Analysis
32 Heidelberg Big Pumpkin Chess Tournament 2023 (A+B) 2023/04/01 2023/04/01 Eden District (WEG) Standard 60 0.83 5 5 2.0 1578.3 1565.2 Analysis
31 Eden Trails 1 2023 (U11 Boys) 2023/03/11 2023/03/11 Eden District (WEG) Standard 60 0.83 5 5 4.0 1547.1 1532.6 Analysis
123
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 33 23 1 9 23.5 71.2 180.3 1363.8 1544.1
White 18 13 1 4 13.5 75.0 212.5 1363.2 1575.7
Black 15 10 0 5 10.0 66.7 141.7 1364.5 1506.2
Standard All 26 20 1 5 20.5 78.8 245.2 1325.9 1571.1
White 15 12 1 2 12.5 83.3 283.3 1310.3 1593.6
Black 11 8 0 3 8.0 72.7 193.2 1347.2 1540.4
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 7 3 0 4 3.0 42.9 -60.7 1504.7 1444.0
White 3 1 0 2 1.0 33.3 -141.7 1628.2 1486.5
Black 4 2 0 2 2.0 50.0 0.0 1412.1 1412.1
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 263 174 9 80 178.5 67.9 151.9 1288.4 1440.3
White 133 89 7 37 92.5 69.5 166.2 1288.4 1454.6
Black 130 85 2 43 86.0 66.2 137.3 1288.4 1425.8
Standard All 162 108 7 47 111.5 68.8 160.0 1289.4 1449.4
White 82 56 5 21 58.5 71.3 181.4 1279.8 1461.2
Black 80 52 2 26 53.0 66.3 138.1 1299.3 1437.4
Rapid All 65 41 1 23 41.5 63.8 117.7 1250.0 1367.7
White 33 20 1 12 20.5 62.1 103.0 1268.0 1371.0
Black 32 21 0 11 21.0 65.6 132.8 1231.5 1364.3
Blitz All 36 25 1 10 25.5 70.8 177.1 1353.4 1530.5
White 18 13 1 4 13.5 75.0 212.5 1365.2 1577.7
Black 18 12 0 6 12.0 66.7 141.7 1341.6 1483.3
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 2120108533 Johnson, A (Amy) 7 5.5 5 1 1 78.6 1327.2 242.9 1570.0 View list
2 1130135426 Moolman, E (Elzevir) 5 5.0 5 0 0 100.0 1454.7 425.0 1879.7 View list
3 1110109659 Daries, T (Tyreez) 5 4.0 4 0 1 80.0 1317.1 255.0 1572.1 View list
4 1110108531 Joseph, W (William) 5 3.0 3 0 2 60.0 1338.2 85.0 1423.2 View list
5 1120131110 Punt, H (Heinrich) 5 3.0 3 0 2 60.0 1386.0 85.0 1471.0 View list
6 1130119671 Drude, E (Eyshaan) 4 4.0 4 0 0 100.0 1412.4 425.0 1837.4 View list
7 1120107825 Meyer, A (Albert) 4 4.0 4 0 0 100.0 1283.5 425.0 1708.5 View list
8 1120098503 Heunis, F (Fourie) 4 2.0 2 0 2 50.0 1328.7 0.0 1328.7 View list
9 1120119459 Brink, A (Andrew) 4 1.5 1 1 2 37.5 1442.0 -106.3 1335.7 View list
10 2120116532 Cornforth, K (Kayleigh) 4 1.0 1 0 3 25.0 1485.9 -212.5 1273.4 View list
11 1120154635 Bam, C (Cayleb) 3 3.0 3 0 0 100.0 1550.3 425.0 1975.3 View list
12 2120119684 Moses, J (Jay-Leigh) 3 2.0 2 0 1 66.7 1442.7 141.7 1584.4 View list
13 1120130753 Riddles, C (Cleawin) 3 2.0 2 0 1 66.7 1364.4 141.7 1506.0 View list
14 2130109664 Saayman, L (Leshme) 3 2.0 2 0 1 66.7 1277.2 141.7 1418.8 View list
15 1120118497 Sampson, E (Eejay) 3 2.0 2 0 1 66.7 1416.1 141.7 1557.8 View list
16 1120112288 Robertson, J (Jonah) 3 1.0 1 0 2 33.3 1270.0 -141.7 1128.3 View list
17 1120106747 Melzer, E (Elisha) 3 0.0 0 0 3 0.0 1265.9 -425.0 840.9 View list
18 1110130128 Da Silva, D (Darren) 2 2.0 2 0 0 100.0 1518.4 425.0 1943.4 View list
19 2090158151 Du Toit, W (Willeshia) 2 2.0 2 0 0 100.0 1553.6 425.0 1978.6 View list
20 1110145215 Fakier, A (Abdur-Rahmaan) 2 2.0 2 0 0 100.0 1500.1 425.0 1925.1 View list