Chess South Africa
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Chess South Africa
Grobler, R (Rowan)
Dob:
2011/08/16 (U14)
Gender:
Male
Chess SA id:
1110140037
FIDE id:
Region:
Bojanala Platina (NBR)
Citizen:
RSA
Title(s):
Last active:
2024/09/21 (65 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
1440.8
Current Weighted rating
1409.4
Current Weighted performance
1298.1
Current official/published rating (highest between Raw, WR and WP)
1440.8
Current highest rating achieved
1555.1
Current floor (min rating allowed)
1055.1
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)
±117.7
Current Raw change used (final)
0.0
Projected new Raw rating
1440.8
Projected new Weighed rating
1297.4
Projected new Weighted performance
1298.1
Projected new final Raw rating (if new WP > new Raw)
1440.8
Projected new highest rating
1555.1
Projected new floor
1055.1
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1440.8
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
1413.0
Current Weighted rating
1406.4
Current Weighted performance
1310.5
Current official/published rating (highest between Raw, WR and WP)
1413.0
Current highest rating achieved
1547.1
Current floor (min rating allowed)
1047.1
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)
±122.4
Current Raw change used (final)
0.0
Projected new Raw rating
1413.0
Projected new Weighed rating
1294.5
Projected new Weighted performance
1310.5
Projected new final Raw rating (if new WP > new Raw)
1413.0
Projected new highest rating
1547.1
Projected new floor
1047.1
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1413.0
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 rating
1247.2
Current Weighted rating
1182.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1247.2
Current highest rating achieved
1247.2
Current floor (min rating allowed)
747.2
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)
±155.0
Current Raw change used (final)
0.0
Projected new Raw rating
1247.2
Projected new Weighed rating
1087.9
Projected new Weighted performance
799.2
Projected new final Raw rating (if new WP > new Raw)
1247.2
Projected new highest rating
1247.2
Projected new floor
747.2
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1247.2
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
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
11
Bojanala's Battle In The Kloof 2024 (Queens)
2024/09/21
2024/09/21
Bojanala Platina (NBR)
Standard
60
0.83
5
5
0.0
1526.6
1515.4
Analysis
10
Bojanala Circuit Championships 3 of 4 2024 (U16)
2024/09/14
2024/09/14
Bojanala Platina (NBR)
Standard
60
0.83
5
4
1.0
1526.6
1515.4
Analysis
9
Bojanala's FIDE In The Sparkling Waters 2024 (Rooks)
2024/08/16
2024/08/18
Bojanala Platina (NBR)
Standard
120
1.00
6
5
3.0
1555.1
1547.1
Analysis
8
Bojanala's Clash Of Schools - Secondary 2024 (U17)
2024/07/27
2024/07/27
Bojanala Platina (NBR)
Rapid
35
0.66
5
5
5.0
1471.3
1145.2
Analysis
7
Bojanala's Clash Of Schools 2024 (Championship)
2024/07/20
2024/07/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1471.3
1469.9
Analysis
6
Bojanala Circuit Championship 2 of 4 2024 (U14)
2024/06/15
2024/06/15
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.5
1410.0
1407.2
Analysis
5
Bojanala Circuit Championship 1 of 4 2024 (U14)
2024/05/25
2024/05/25
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1412.7
1411.0
Analysis
4
Bojanala Olienpark's One For The Ages 2024 (Bishops)
2024/04/20
2024/04/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1387.5
1392.3
Analysis
3
Bojanala's Rating Express 2024 (Bishops)
2024/04/06
2024/04/06
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1387.5
1392.3
Analysis
2
Bojanala Closed Chess Championships Finals 2024 (U14)
2024/02/09
2024/02/11
Bojanala Platina (NBR)
Standard
120
1.00
5
5
2.5
1339.3
1353.4
Analysis
1
Bojanala Closed Chess Championships Stage 1 2024 (U14)
2024/01/27
2024/01/27
Bojanala Platina (NBR)
Standard
60
0.83
5
4
3.5
1283.3
1286.5
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
30
Bojanala's Battle In The Kloof 2024 (Queens)
2024/09/21
2024/09/21
Bojanala Platina (NBR)
Standard
60
0.83
5
5
0.0
1526.6
1515.4
Analysis
29
Bojanala Circuit Championships 3 of 4 2024 (U16)
2024/09/14
2024/09/14
Bojanala Platina (NBR)
Standard
60
0.83
5
4
1.0
1526.6
1515.4
Analysis
28
Bojanala's FIDE In The Sparkling Waters 2024 (Rooks)
2024/08/16
2024/08/18
Bojanala Platina (NBR)
Standard
120
1.00
6
5
3.0
1555.1
1547.1
Analysis
27
Bojanala's Clash Of Schools - Secondary 2024 (U17)
2024/07/27
2024/07/27
Bojanala Platina (NBR)
Rapid
35
0.66
5
5
5.0
1471.3
1145.2
Analysis
26
Bojanala's Clash Of Schools 2024 (Championship)
2024/07/20
2024/07/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1471.3
1469.9
Analysis
25
Bojanala Circuit Championship 2 of 4 2024 (U14)
2024/06/15
2024/06/15
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.5
1410.0
1407.2
Analysis
24
Bojanala Circuit Championship 1 of 4 2024 (U14)
2024/05/25
2024/05/25
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1412.7
1411.0
Analysis
23
Bojanala Olienpark's One For The Ages 2024 (Bishops)
2024/04/20
2024/04/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1387.5
1392.3
Analysis
22
Bojanala's Rating Express 2024 (Bishops)
2024/04/06
2024/04/06
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1387.5
1392.3
Analysis
21
Bojanala Closed Chess Championships Finals 2024 (U14)
2024/02/09
2024/02/11
Bojanala Platina (NBR)
Standard
120
1.00
5
5
2.5
1339.3
1353.4
Analysis
20
Bojanala Closed Chess Championships Stage 1 2024 (U14)
2024/01/27
2024/01/27
Bojanala Platina (NBR)
Standard
60
0.83
5
4
3.5
1283.3
1286.5
Analysis
19
2023 Cross Border Chess Championships Gaborone vs Bojanala
2023/12/14
2023/12/16
Botswana (BOT)
Standard
120
1.00
5
5
3.0
1327.9
1344.1
Analysis
18
Bojanala's Merry ChessMas 2023 (Rooks)
2023/12/09
2023/12/09
Bojanala Platina (NBR)
Standard
60
0.83
5
5
1.0
1327.9
1344.1
Analysis
17
Bojanala School League 2023 (Primary School Open)
2023/08/19
2023/08/19
Bojanala Platina (NBR)
Rapid
40
0.70
5
5
1.0
1386.1
1200.0
Analysis
16
Bojanala's Rosewood 2023 (Rooks)
2023/08/12
2023/08/12
Bojanala Platina (NBR)
Standard
60
0.83
5
5
2.0
1386.1
1381.5
Analysis
15
Bojanala's FIDE in the Sparkling Waters 2023 (Rooks)
2023/07/28
2023/07/30
Bojanala Platina (NBR)
Standard
120
1.00
6
6
2.5
1422.3
1416.4
Analysis
14
Grenswag's Community Battle 2023 (Rooks)
2023/04/22
2023/04/22
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1406.1
1395.9
Analysis
13
Schoemies Kings & Queens 2023 (Rooks)
2023/03/18
2023/03/18
Bojanala Platina (NBR)
Standard
60
0.83
5
5
2.0
1442.0
1439.7
Analysis
12
One For The Ages 2023 (U14)
2023/02/18
2023/02/18
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1426.1
1422.1
Analysis
11
2022 South African Junior Team Chess Championships (U12 Open)
2022/12/04
2022/12/08
4 Knights (4K)
Standard
120
1.00
7
7
5.0
1419.1
1415.1
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
53
30
5
18
32.5
61.3
96.2
1384.0
1480.2
White
26
17
3
6
18.5
71.2
179.8
1391.1
1570.9
Black
27
13
2
12
14.0
51.9
15.7
1377.1
1392.8
Standard
All
48
25
5
18
27.5
57.3
62.0
1397.8
1459.8
White
23
14
3
6
15.5
67.4
147.8
1409.4
1557.2
Black
25
11
2
12
12.0
48.0
-17.0
1387.2
1370.2
Rapid
All
5
5
0
0
5.0
100.0
425.0
1250.7
1675.7
White
3
3
0
0
3.0
100.0
425.0
1251.3
1676.3
Black
2
2
0
0
2.0
100.0
425.0
1249.9
1674.9
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
150
90
8
52
94.0
62.7
107.7
1311.2
1418.9
White
74
46
5
23
48.5
65.5
132.1
1308.9
1441.0
Black
76
44
3
29
45.5
59.9
83.9
1313.5
1397.3
Standard
All
140
84
8
48
88.0
62.9
109.3
1309.1
1418.4
White
69
42
5
22
44.5
64.5
123.2
1309.6
1432.8
Black
71
42
3
26
43.5
61.3
95.8
1308.6
1404.4
Rapid
All
10
6
0
4
6.0
60.0
85.0
1340.8
1425.8
White
5
4
0
1
4.0
80.0
255.0
1299.1
1554.1
Black
5
2
0
3
2.0
40.0
-85.0
1382.5
1297.5
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1110099324
Roos, J (Justin)
8
2.5
2
1
5
31.3
1400.8
-159.4
1241.4
View list
2
1110136394
Botha, J (Johannes Cornelis)
7
2.5
2
1
4
35.7
1422.0
-121.4
1300.6
View list
3
211093260
Jansen Van Vuuren, M (Mari)
4
4.0
4
0
0
100.0
1438.1
425.0
1863.1
View list
4
1120117881
Potgieter, R (Reinhardt)
4
3.0
3
0
1
75.0
1411.5
212.5
1624.0
View list
5
1110143714
Terblanche, J (Johann)
4
3.0
3
0
1
75.0
1402.4
212.5
1614.9
View list
6
1110136771
Watt, C (Chad)
4
3.0
3
0
1
75.0
1407.4
212.5
1619.9
View list
7
1130131230
Changara, A (Alvis Tafadzwa)
4
1.5
1
1
2
37.5
1393.2
-106.3
1287.0
View list
8
1120133385
Myburgh, B (Braydan)
3
3.0
3
0
0
100.0
1449.4
425.0
1874.4
View list
9
1110131242
Changara, A (Adiel Tavonga)
3
2.0
2
0
1
66.7
1378.1
141.7
1519.7
View list
10
1090131247
Changara, A (Adrian Tafara)
3
1.0
1
0
2
33.3
1420.2
-141.7
1278.5
View list
11
1110099325
Nortman, WJ (Wilhelmus Johan)
3
1.0
1
0
2
33.3
1390.5
-141.7
1248.8
View list
12
2120111293
Gouws, K (Karah)
2
2.0
2
0
0
100.0
1422.8
425.0
1847.8
View list
13
1080156759
Mogapi, B (Blessing)
2
2.0
2
0
0
100.0
1428.7
425.0
1853.7
View list
14
2120136396
Monamatha, D (Diteboho)
2
2.0
2
0
0
100.0
1400.1
425.0
1825.1
View list
15
1100148730
Nkabinde, L (Lwazi)
2
2.0
2
0
0
100.0
1357.0
425.0
1782.0
View list
16
2110144055
Segalo, O (Ogone)
2
2.0
2
0
0
100.0
1429.4
425.0
1854.4
View list
17
2100132783
Sehunwe, L (Lethlogonolo)
2
2.0
2
0
0
100.0
1354.4
425.0
1779.4
View list
18
2110136768
Monare, O (Oratilwe)
2
1.5
1
1
0
75.0
1404.9
212.5
1617.4
View list
19
1110140059
Tshetlhe, B (Blessing)
2
1.5
1
1
0
75.0
1269.7
212.5
1482.2
View list
20
2110141710
Dikolomela, T (Tlhogi)
2
1.0
2
0
1
50.0
1424.0
0.0
1424.0
View list