Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
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 (156 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1552.8
Current Weighted rating
1549.4
Current Weighted performance
1407.8
Current official/published rating (highest between Raw, WR and WP)
1552.8
Current highest rating achieved
1578.3
Current floor (min rating allowed)
1078.3
Current K-factor
32
Games played this month
0
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 rating
1552.8
Projected new Weighed rating
1426.6
Projected new Weighted performance
1407.8
Projected new final Raw rating (if new WP > new Raw)
1552.8
Projected new highest rating
1578.3
Projected new floor
1078.3
Projected new K-facor
32
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 rating
1540.3
Current Weighted rating
1547.7
Current Weighted performance
1458.8
Current official/published rating (highest between Raw, WR and WP)
1547.7
Current highest rating achieved
1580.6
Current floor (min rating allowed)
1080.6
Current K-factor
32
Games played this month
0
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 rating
1540.3
Projected new Weighed rating
1424.8
Projected new Weighted performance
1458.8
Projected new final Raw rating (if new WP > new Raw)
1540.3
Projected new highest rating
1580.6
Projected new floor
1080.6
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1540.3
Projected effective change (new Official - current Official)
-7.4
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 rating
1329.7
Current Weighted rating
1329.2
Current Weighted performance
1171.2
Current official/published rating (highest between Raw, WR and WP)
1329.7
Current highest rating achieved
1373.6
Current floor (min rating allowed)
873.6
Current K-factor
36
s
Games played this month
0
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 rating
1329.7
Projected new Weighed rating
1222.5
Projected new Weighted performance
1171.2
Projected new final Raw rating (if new WP > new Raw)
1329.7
Projected new highest rating
1373.6
Projected new floor
873.6
Projected new K-facor
36
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 rating
1323.2
Current Weighted rating
1314.7
Current Weighted performance
1359.4
Current official/published rating (highest between Raw, WR and WP)
1359.4
Current highest rating achieved
1365.3
Current floor (min rating allowed)
865.3
Current K-factor
36
Games played this month
0
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 rating
1323.2
Projected new Weighed rating
1212.4
Projected new Weighted performance
1359.4
Projected new final Raw rating (if new WP > new Raw)
1359.4
Projected new highest rating
1365.3
Projected new floor
865.3
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1359.4
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
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
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
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
1
2
3
Game History
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
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