Chess South Africa
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Chess South Africa
Jacobs, CN (Calvin Nicholas)
Dob:
2009/09/22 (U16)
Gender:
Male
Chess SA id:
109086379
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2024/05/11 (8 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
1727.9
Curent Weighted rating
1710.4
Curent Weighted performance
1653.7
Current official/published rating (highest between Raw, WR and WP)
1727.9
Current floor (min rating allowed)
1263.5
Current highest rating achieved
1763.5
Current K-factor
28
Games played this month
19
Score (S)
11.5
Expected score (We)
7.55
Difference (S-We)
3.95
Current Raw change (no limits, including tournament time weight)
98.4
Current min/max change allowed (with limits)
±78.2
Current Raw change used (final)
78.2
Projected new Raw rating
1806.1
Projected new Weighed rating
1719.0
Projected new Weighted performance
1653.7
Projected new official/published rating (highest between new Raw, new WR and new WP)
1806.1
Projected effective change (new Official - current Official)
+78.2
Projected new highest rating
1806.1
Projected new floor
1306.1
Projected new K-facor
24
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
1732.8
Curent Weighted rating
1724.6
Curent Weighted performance
1653.6
Current official/published rating (highest between Raw, WR and WP)
1732.8
Current floor (min rating allowed)
1281.8
Current highest rating achieved
1781.8
Current K-factor
28
Games played this month
19
Score (S)
11.5
Expected score (We)
7.47
Difference (S-We)
4.03
Current Raw change (no limits, including tournament time weight)
112.8
Current min/max change allowed (with limits)
±77.6
Current Raw change used (final)
77.6
Projected new Raw rating
1810.4
Projected new Weighed rating
1732.6
Projected new Weighted performance
1653.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1810.4
Projected effective change (new Official - current Official)
+77.6
Projected new highest rating
1810.4
Projected new floor
1310.4
Projected new K-facor
24
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
1433.9
Curent Weighted rating
1193.4
Curent Weighted performance
1361.0
Current official/published rating (highest between Raw, WR and WP)
1433.9
Current floor (min rating allowed)
933.9
Current highest rating achieved
1433.9
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)
±118.8
Current Raw change used (final)
0.0
Projected new Raw rating
1433.9
Projected new Weighed rating
1220.6
Projected new Weighted performance
1361.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1433.9
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1433.9
Projected new floor
933.9
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
1932.7
Curent Weighted rating
1729.1
Curent Weighted performance
1437.3
Current official/published rating (highest between Raw, WR and WP)
1932.7
Current floor (min rating allowed)
933.9
Current highest rating achieved
1932.7
Current K-factor
24
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)
±58.4
Current Raw change used (final)
0.0
Projected new Raw rating
1932.7
Projected new Weighed rating
1749.8
Projected new Weighted performance
1437.3
Projected new official/published rating (highest between new Raw, new WR and new WP)
1932.7
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1932.7
Projected new floor
933.9
Projected new K-facor
24
Tournaments
History
Tournament:
JMC Crawford International Sandton 2024 (A)
Start:
2024/05/11
End:
2024/05/11
Host:
GJM
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
2.5
Main rating:
1727.9
Rating gain/loss:
40.0
Type rating:
1732.8
Rating gain/loss:
50.4
Analysis
Tournament:
2024 Mid Gauteng Open Chess Tournament (A)
Start:
2024/05/02
End:
2024/05/02
Host:
GTP
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
3.5
Main rating:
1727.9
Rating gain/loss:
19.5
Type rating:
1732.8
Rating gain/loss:
22.1
Analysis
Tournament:
South African Junior Closed Chess Championship 2024 (U16 Open)
Start:
2024/04/27
End:
2024/05/01
Host:
GE
Type:
Standard
Time:
120
Time weight:
1.00
Rounds:
9
Games:
9
Score:
5.5
Main rating:
1727.9
Rating gain/loss:
38.9
Type rating:
1732.8
Rating gain/loss:
40.3
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
7
JMC Crawford International Sandton 2024 (A)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1727.9
1732.8
Analysis
6
2024 Mid Gauteng Open Chess Tournament (A)
2024/05/02
2024/05/02
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1727.9
1732.8
Analysis
5
South African Junior Closed Chess Championship 2024 (U16 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
5.5
1727.9
1732.8
Analysis
4
2024 KSNG CHess Academy Open Tournament (A)
2024/04/06
2024/04/06
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1756.3
1769.8
Analysis
3
2024 Wynie Robbertse Chess Tournament (A)
2024/03/02
2024/03/02
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1763.5
1781.8
Analysis
2
2024 Blou Bul Open Chess Tournament (A)
2024/02/10
2024/02/10
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1736.1
1750.7
Analysis
1
2024 Gauteng Inter-Region Chess Championship (Adult B+Fifty+Ladies)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1740.6
1755.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
95
JMC Crawford International Sandton 2024 (A)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.5
1727.9
1732.8
Analysis
94
2024 Mid Gauteng Open Chess Tournament (A)
2024/05/02
2024/05/02
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1727.9
1732.8
Analysis
93
South African Junior Closed Chess Championship 2024 (U16 Open)
2024/04/27
2024/05/01
Ekurhuleni (GE)
Standard
120
1.00
9
9
5.5
1727.9
1732.8
Analysis
92
2024 KSNG CHess Academy Open Tournament (A)
2024/04/06
2024/04/06
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1756.3
1769.8
Analysis
91
2024 Wynie Robbertse Chess Tournament (A)
2024/03/02
2024/03/02
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1763.5
1781.8
Analysis
90
2024 Blou Bul Open Chess Tournament (A)
2024/02/10
2024/02/10
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1736.1
1750.7
Analysis
89
2024 Gauteng Inter-Region Chess Championship (Adult B+Fifty+Ladies)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
4.0
1740.6
1755.4
Analysis
88
Mzansi Summer Blitz 2023
2023/12/09
2023/12/09
Johannesburg Metro (GJM)
Rapid
10
0.29
7
7
4.5
1677.2
1165.6
Analysis
87
CCC Blitz All 2023
2023/12/06
2023/12/06
Tshwane (GTP)
Blitz
5
0.18
9
9
8.0
1677.2
1605.4
Analysis
86
CCC Midstream Rapid 2023
2023/11/27
2023/11/27
Tshwane (GTP)
Rapid
15
0.39
5
5
3.0
1691.6
1105.2
Analysis
85
Africawide Chess Championship 2023 (Open)
2023/11/03
2023/11/05
Johannesburg Metro (GJM)
Standard
90
0.94
7
7
4.5
1691.6
1703.9
Analysis
84
2023 Centurion Chess Open (A)
2023/09/23
2023/09/23
Tshwane (GTP)
Standard
60
0.83
5
5
2.5
1695.2
1711.7
Analysis
83
Mzansi Spring Rapid 2023
2023/09/02
2023/09/02
Johannesburg Metro (GJM)
Rapid
15
0.39
7
7
4.5
1695.2
970.8
Analysis
82
2023 Etienne Lewis Closed Tournament (U16)
2023/08/25
2023/08/27
Tshwane (GTP)
Standard
90
0.94
7
7
5.0
1701.3
1721.2
Analysis
81
Bojanala's FIDE in the Sparkling Waters 2023 (Prestige)
2023/07/28
2023/07/30
Bojanala Platina (NBR)
Standard
120
1.00
6
6
3.0
1718.9
1746.1
Analysis
80
2023 Centurion Club Championships
2023/07/19
2023/09/06
Tshwane (GTP)
Standard
60
0.83
6
6
5.5
1695.2
1711.7
Analysis
79
Tshwane Chess FIDE Rated Blitz League 3 2023
2023/07/16
2023/07/16
Tshwane (GTP)
Blitz
5
0.18
9
9
6.0
1718.9
1596.4
Analysis
78
2023 Lubowski Open Tournament (A)
2023/06/24
2023/06/25
Tshwane (GTP)
Standard
90
0.94
5
5
3.5
1680.3
1689.7
Analysis
77
2023 Elize Steenkamp Open Tournament (A)
2023/06/16
2023/06/17
Tshwane (GTP)
Standard
90
0.94
6
6
3.0
1680.3
1689.7
Analysis
76
2023 Tshwane Chess FIDE Rated Blitz League 2
2023/06/11
2023/06/11
Tshwane (GTP)
Blitz
5
0.18
9
9
6.0
1680.3
1604.0
Analysis
1
2
3
4
5
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
39
20
9
10
24.5
62.8
109.0
1713.1
1822.0
White
21
10
5
6
12.5
59.5
81.0
1735.0
1816.0
Black
18
10
4
4
12.0
66.7
141.7
1687.5
1829.1
Standard
All
39
20
9
10
24.5
62.8
109.0
1713.1
1822.0
White
21
10
5
6
12.5
59.5
81.0
1735.0
1816.0
Black
18
10
4
4
12.0
66.7
141.7
1687.5
1829.1
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
557
304
79
174
343.5
61.7
99.2
1449.1
1548.3
White
288
160
38
90
179.0
62.2
103.3
1468.5
1571.8
Black
269
144
41
84
164.5
61.2
94.8
1428.4
1523.2
Standard
All
429
226
66
137
259.0
60.4
88.2
1426.5
1514.7
White
222
126
33
63
142.5
64.2
120.6
1430.0
1550.6
Black
207
100
33
74
116.5
56.3
53.4
1422.8
1476.2
Rapid
All
34
17
4
13
19.0
55.9
50.0
1495.7
1545.7
White
18
4
2
12
5.0
27.8
-188.9
1677.8
1488.9
Black
16
13
2
1
14.0
87.5
318.8
1290.8
1609.6
Blitz
All
94
61
9
24
65.5
69.7
167.3
1535.4
1702.7
White
48
30
3
15
31.5
65.6
132.8
1567.9
1700.7
Black
46
31
6
9
34.0
73.9
203.3
1501.6
1704.8
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
109069454
Sathish, A (Abinavah)
16
7.5
6
3
7
46.9
1515.0
-26.6
1488.5
View list
2
107086377
Jacobs, TB (Tiaan Benjamin)
13
7.5
4
7
2
57.7
1591.8
65.4
1657.2
View list
3
109069449
Boheim, E (Eugene)
8
6.0
6
0
2
75.0
1318.9
212.5
1531.4
View list
4
108064021
Coetsee, D (Dewald)
7
5.5
5
1
1
78.6
1580.3
242.9
1823.1
View list
5
108076196
Potgieter, E (Edward)
7
3.5
3
1
3
50.0
1536.3
0.0
1536.3
View list
6
184019054
Mabusela, JM (Johannes)
7
2.0
1
2
4
28.6
1687.3
-182.1
1505.2
View list
7
107069948
Jones, W (William)
6
3.0
2
2
2
50.0
1561.3
0.0
1561.3
View list
8
177017896
Letsoalo, PM (Peter)
6
2.0
2
0
4
33.3
1561.5
-141.7
1419.8
View list
9
101015487
Khumalo, KB (Keith)
6
0.0
0
0
6
0.0
1604.5
-425.0
1179.5
View list
10
209092675
Ramlall, S (Sanjana)
5
4.0
4
0
1
80.0
1225.1
255.0
1480.1
View list
11
109086362
Yang, A (Alex)
5
3.5
2
3
0
70.0
1484.6
170.0
1654.6
View list
12
184027327
Nene, TH (Themba)
5
2.0
2
0
3
40.0
1670.9
-85.0
1585.9
View list
13
109089434
Van Loggerenberg, L (Logan)
4
4.0
4
0
0
100.0
1505.9
425.0
1930.9
View list
14
193020018
Malan, A (Aiden)
4
3.5
3
1
0
87.5
1493.6
318.8
1812.3
View list
15
210083428
Rautenbach, H (Helen Christine)
4
3.5
3
1
0
87.5
1674.0
318.8
1992.7
View list
16
105059134
De Swardt, E (Eduan)
4
3.0
3
0
1
75.0
1306.6
212.5
1519.1
View list
17
109083783
Kushar, T (Tristan)
4
3.0
3
0
1
75.0
1385.2
212.5
1597.7
View list
18
208088604
Monnig, E (Erika)
4
2.5
2
1
1
62.5
1481.9
106.3
1588.2
View list
19
1080103221
Nwedo, K (Khodani)
4
2.5
1
3
0
62.5
1654.8
106.3
1761.0
View list
20
1030104248
Motiang, RT (Refentse Tumisang)
4
2.0
2
0
2
50.0
1271.7
0.0
1271.7
View list
