Chess South Africa
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Chess South Africa
Botha, J (Johannes Cornelis)
Dob:
2011/06/23 (U14)
Gender:
Male
Chess SA id:
1110136394
FIDE id:
Region:
Bojanala Platina (NBR)
Citizen:
RSA
Title(s):
Last active:
2024/05/05 (9 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
Curent Raw rating
1566.2
Curent Weighted rating
1390.2
Curent Weighted performance
1559.1
Current official/published rating (highest between Raw, WR and WP)
1566.2
Current floor (min rating allowed)
1066.2
Current highest rating achieved
1566.2
Current K-factor
32
Games played this month
5
Score (S)
4.0
Expected score (We)
3.75
Difference (S-We)
0.25
Current Raw change (no limits, including tournament time weight)
6.6
Current min/max change allowed (with limits)
±98.4
Current Raw change used (final)
6.6
Projected new Raw rating
1572.8
Projected new Weighed rating
1405.2
Projected new Weighted performance
1559.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1572.8
Projected effective change (new Official - current Official)
+6.6
Projected new highest rating
1572.8
Projected new floor
1072.8
Projected new K-facor
32
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
Curent Raw rating
1563.9
Curent Weighted rating
1386.9
Curent Weighted performance
1556.9
Current official/published rating (highest between Raw, WR and WP)
1563.9
Current floor (min rating allowed)
1063.9
Current highest rating achieved
1563.9
Current K-factor
32
Games played this month
5
Score (S)
4.0
Expected score (We)
3.83
Difference (S-We)
0.17
Current Raw change (no limits, including tournament time weight)
5.4
Current min/max change allowed (with limits)
±98.7
Current Raw change used (final)
5.4
Projected new Raw rating
1569.3
Projected new Weighed rating
1401.8
Projected new Weighted performance
1556.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1569.3
Projected effective change (new Official - current Official)
+5.4
Projected new highest rating
1569.3
Projected new floor
1069.3
Projected new K-facor
32
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
Curent Raw rating
1176.4
Curent Weighted rating
1184.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1184.7
Current floor (min rating allowed)
676.4
Current highest rating achieved
1176.4
Current K-factor
40
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)
±171.5
Current Raw change used (final)
0.0
Projected new Raw rating
1176.4
Projected new Weighed rating
1183.6
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1183.6
Projected effective change (new Official - current Official)
-1.1
Projected new highest rating
1176.4
Projected new floor
676.4
Projected new K-facor
40
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
Curent Raw rating
1201.6
Curent Weighted rating
1200.9
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1201.6
Current floor (min rating allowed)
676.4
Current highest rating achieved
1201.6
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)
±165.4
Current Raw change used (final)
0.0
Projected new Raw rating
1201.6
Projected new Weighed rating
1201.0
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1201.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1201.6
Projected new floor
676.4
Projected new K-facor
36
Tournaments
History
Tournament:
Spartan Bishops Chess Championships 2024 (Knights)
Start:
2024/05/04
End:
2024/05/05
Host:
NBR
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
4.0
Main rating:
1566.2
Rating gain/loss:
6.6
Type rating:
1563.9
Rating gain/loss:
5.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
7
Spartan Bishops Chess Championships 2024 (Knights)
2024/05/04
2024/05/05
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1566.2
1563.9
Analysis
6
2024 Milos Ristic Open Chess Tournament (U14)
2024/04/27
2024/04/27
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1398.4
1398.0
Analysis
5
Bojanala Olienpark's One For The Ages 2024 (Rooks)
2024/04/20
2024/04/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1398.4
1398.0
Analysis
4
Bojanala's Rating Express 2024 (Rooks)
2024/04/06
2024/04/06
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1398.4
1398.0
Analysis
3
Bojanala Silwerrand's Rating Implosion 2024 (Rooks)
2024/03/16
2024/03/16
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1396.8
1401.5
Analysis
2
Bojanala Closed Chess Championships Finals 2024 (U14)
2024/02/09
2024/02/11
Bojanala Platina (NBR)
Standard
120
1.00
5
5
3.5
1351.5
1350.6
Analysis
1
Bojanala Closed Chess Championships Stage 1 2024 (U14)
2024/01/27
2024/01/27
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.5
1292.0
1291.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
39
Spartan Bishops Chess Championships 2024 (Knights)
2024/05/04
2024/05/05
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1566.2
1563.9
Analysis
38
2024 Milos Ristic Open Chess Tournament (U14)
2024/04/27
2024/04/27
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1398.4
1398.0
Analysis
37
Bojanala Olienpark's One For The Ages 2024 (Rooks)
2024/04/20
2024/04/20
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1398.4
1398.0
Analysis
36
Bojanala's Rating Express 2024 (Rooks)
2024/04/06
2024/04/06
Bojanala Platina (NBR)
Standard
60
0.83
5
5
4.0
1398.4
1398.0
Analysis
35
Bojanala Silwerrand's Rating Implosion 2024 (Rooks)
2024/03/16
2024/03/16
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1396.8
1401.5
Analysis
34
Bojanala Closed Chess Championships Finals 2024 (U14)
2024/02/09
2024/02/11
Bojanala Platina (NBR)
Standard
120
1.00
5
5
3.5
1351.5
1350.6
Analysis
33
Bojanala Closed Chess Championships Stage 1 2024 (U14)
2024/01/27
2024/01/27
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.5
1292.0
1291.2
Analysis
32
2023 Cross Border Chess Championships Gaborone vs Bojanala
2023/12/14
2023/12/16
Botswana (BOT)
Standard
120
1.00
5
5
3.0
1325.8
1322.9
Analysis
31
Bojanala's Merry ChessMas 2023 (Rooks)
2023/12/09
2023/12/09
Bojanala Platina (NBR)
Standard
60
0.83
5
5
2.5
1325.8
1322.9
Analysis
30
West Rand vs Bojanala Inter-Regional Championships 2023 (U14)
2023/10/14
2023/10/14
West Rand (GWR)
Standard
60
0.83
5
5
4.0
1310.5
1297.9
Analysis
29
2023 Moja Chess Extravaganza (Blitz)
2023/10/03
2023/10/03
Frances Baard (NCF)
Blitz
5
0.18
7
7
2.0
1310.5
1200.0
Analysis
28
2023 Moja Chess Extravaganza (B)
2023/09/30
2023/10/04
Frances Baard (NCF)
Standard
120
1.00
9
9
2.0
1310.5
1297.9
Analysis
27
Bojanala's Battle Of Mount Cambridge 2023 (Rooks)
2023/09/16
2023/09/16
Bojanala Platina (NBR)
Standard
60
0.83
5
5
0.5
1363.9
1363.2
Analysis
26
Bojanala's Spring Cleaning 2023 (Rooks)
2023/08/26
2023/08/26
Bojanala Platina (NBR)
Standard
60
0.83
5
5
2.5
1397.5
1392.3
Analysis
25
Bojanala School League 2023 (Primary School Open)
2023/08/19
2023/08/19
Bojanala Platina (NBR)
Rapid
40
0.70
5
5
2.0
1397.5
1200.0
Analysis
24
Bojanala's Rosewood 2023 (Rooks)
2023/08/12
2023/08/12
Bojanala Platina (NBR)
Standard
60
0.83
5
5
2.0
1397.5
1392.3
Analysis
23
Bojanala's FIDE in the Sparkling Waters 2023 (Rooks)
2023/07/28
2023/07/30
Bojanala Platina (NBR)
Standard
120
1.00
6
6
3.0
1438.1
1432.9
Analysis
22
Bojanala's Post-Exams 2023 (Rooks)
2023/06/24
2023/06/24
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.0
1436.2
1428.7
Analysis
21
Olienpark - 2nd One for the Ages 2023 (U14)
2023/05/13
2023/05/13
Bojanala Platina (NBR)
Standard
60
0.83
5
5
3.5
1428.8
1418.1
Analysis
20
Grenswag's Community Battle 2023 (Rooks)
2023/04/22
2023/04/22
Bojanala Platina (NBR)
Standard
60
0.83
5
5
5.0
1442.6
1433.5
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
35
25
3
7
26.5
75.7
218.6
1331.0
1549.5
White
16
13
2
1
14.0
87.5
318.8
1306.1
1624.8
Black
19
12
1
6
12.5
65.8
134.2
1351.9
1486.1
Standard
All
35
25
3
7
26.5
75.7
218.6
1331.0
1549.5
White
16
13
2
1
14.0
87.5
318.8
1306.1
1624.8
Black
19
12
1
6
12.5
65.8
134.2
1351.9
1486.1
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
206
117
10
79
122.0
59.2
78.4
1297.6
1376.0
White
103
59
8
36
63.0
61.2
94.9
1299.1
1394.0
Black
103
58
2
43
59.0
57.3
61.9
1296.2
1358.1
Standard
All
194
113
10
71
118.0
60.8
92.0
1287.9
1380.0
White
98
58
8
32
62.0
63.3
112.8
1294.0
1406.7
Black
96
55
2
39
56.0
58.3
70.8
1281.8
1352.6
Rapid
All
5
2
0
3
2.0
40.0
-85.0
1427.6
1342.6
White
2
0
0
2
0.0
0.0
-425.0
1420.7
995.7
Black
3
2
0
1
2.0
66.7
141.7
1432.2
1573.9
Blitz
All
7
2
0
5
2.0
28.6
-182.1
1473.6
1291.5
White
3
1
0
2
1.0
33.3
-141.7
1385.6
1243.9
Black
4
1
0
3
1.0
25.0
-212.5
1539.7
1327.2
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1110140059
Tshetlhe, B (Blessing)
7
2.5
1
3
3
35.7
1332.7
-121.4
1211.3
View list
2
1110143714
Terblanche, J (Johann)
5
4.0
4
0
1
80.0
1340.4
255.0
1595.4
View list
3
1110140037
Grobler, R (Rowan)
5
2.5
2
1
2
50.0
1322.5
0.0
1322.5
View list
4
1090131247
Changara, A (Adrian Tafara)
5
1.5
1
1
3
30.0
1389.1
-170.0
1219.1
View list
5
1110146603
Nel, J (J-Lincoln)
4
4.0
4
0
0
100.0
1397.6
425.0
1822.6
View list
6
1100099556
Bantseke, B (Boikanyo)
4
3.0
3
0
1
75.0
1363.1
212.5
1575.6
View list
7
1110117891
Badukane, T (Tokelo)
3
3.0
3
0
0
100.0
1313.8
425.0
1738.8
View list
8
1110131242
Changara, A (Adiel Tavonga)
3
3.0
3
0
0
100.0
1364.4
425.0
1789.4
View list
9
1120117881
Potgieter, R (Reinhardt)
3
3.0
3
0
0
100.0
1279.1
425.0
1704.1
View list
10
1130131229
Changara, A (Alvern Takura)
3
2.0
2
0
1
66.7
1393.8
141.7
1535.5
View list
11
1130131230
Changara, A (Alvis Tafadzwa)
3
1.0
1
0
2
33.3
1362.4
-141.7
1220.7
View list
12
1120144053
Mokgatle, R (Remolebogetse)
3
1.0
1
0
2
33.3
1255.5
-141.7
1113.8
View list
13
2110141710
Dikolomela, L (Letlhogonolo)
2
2.0
3
0
0
100.0
1246.8
425.0
1671.8
View list
14
211093275
Byliefeldt, M (Mienke)
2
2.0
2
0
0
100.0
1311.8
425.0
1736.8
View list
15
211093260
Jansen Van Vuuren, M (Mari)
2
2.0
2
0
0
100.0
1436.9
425.0
1861.9
View list
16
2090148725
Mokoena, T (Thato)
2
2.0
2
0
0
100.0
1397.6
425.0
1822.6
View list
17
2120136396
Monamatha, D (Diteboho)
2
2.0
2
0
0
100.0
1233.9
425.0
1658.9
View list
18
2110136768
Monare, O (Oratilwe)
2
2.0
2
0
0
100.0
1438.8
425.0
1863.8
View list
19
1100144148
Mphomane, O (Omolemo)
2
2.0
2
0
0
100.0
1433.4
425.0
1858.4
View list
20
1100136765
Ramaboa, T (Thando)
2
2.0
2
0
0
100.0
1296.6
425.0
1721.6
View list