Chess South Africa
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Chess South Africa
Verhoef, J (Jan-Meyer)
Dob:
1999/07/12 (Adult)
Gender:
Male
Chess SA id:
199041499
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
PA
Last active:
2023/12/08 (157 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
1715.9
Curent Weighted rating
1729.2
Curent Weighted performance
1389.1
Current official/published rating (highest between Raw, WR and WP)
1729.2
Current floor (min rating allowed)
1244.0
Current highest rating achieved
1744.0
Current K-factor
28
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)
±79.5
Current Raw change used (final)
0.0
Projected new Raw rating
1715.9
Projected new Weighed rating
1728.1
Projected new Weighted performance
1389.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1728.1
Projected effective change (new Official - current Official)
-1.0
Projected new highest rating
1744.0
Projected new floor
1244.0
Projected new K-facor
28
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
1723.0
Curent Weighted rating
1734.3
Curent Weighted performance
1385.0
Current official/published rating (highest between Raw, WR and WP)
1734.3
Current floor (min rating allowed)
1247.8
Current highest rating achieved
1747.8
Current K-factor
28
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)
±78.7
Current Raw change used (final)
0.0
Projected new Raw rating
1723.0
Projected new Weighed rating
1733.4
Projected new Weighted performance
1385.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1733.4
Projected effective change (new Official - current Official)
-0.9
Projected new highest rating
1747.8
Projected new floor
1247.8
Projected new K-facor
28
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
1545.1
Curent Weighted rating
1545.1
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1545.1
Current floor (min rating allowed)
1074.0
Current highest rating achieved
1574.0
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)
±101.4
Current Raw change used (final)
0.0
Projected new Raw rating
1545.1
Projected new Weighed rating
1545.1
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1545.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1574.0
Projected new floor
1074.0
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
1588.9
Curent Weighted rating
1585.9
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1588.9
Current floor (min rating allowed)
1074.0
Current highest rating achieved
1588.9
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)
±95.3
Current Raw change used (final)
0.0
Projected new Raw rating
1588.9
Projected new Weighed rating
1586.2
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1588.9
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1588.9
Projected new floor
1074.0
Projected new K-facor
32
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
15
2023 USSA Championships (Open)
2023/12/04
2023/12/08
Ethekwini (KED)
Standard
120
1.00
9
9
6.5
1744.0
1747.8
Analysis
14
Ussa Chess Championships 2022 (Open)
2022/12/05
2022/12/09
Frances Baard (NCF)
Standard
120
1.00
9
9
6.5
1712.6
1718.4
Analysis
13
USSA Closed 2022 (Open)
2022/05/13
2022/05/15
Dr Kenneth Kaunda (NWP)
Standard
90
0.94
7
7
4.5
1720.0
1725.1
Analysis
12
2021 Alekhine Open (A)
2021/08/14
2021/08/15
Tshwane (GTP)
Standard
90
0.94
5
5
3.0
1662.1
1664.1
Analysis
11
JNW Club - Trinityhouse Little Falls Open 2020 (A)
2020/03/14
2020/03/14
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1649.6
1635.9
Analysis
10
2020 Wynie Robbertse Open Chess Tournament (A)
2020/03/07
2020/03/07
Tshwane (GTP)
Standard
60
0.83
5
3
1.0
1649.6
1635.9
Analysis
9
2019 USSA Championships (Blitz)
2019/12/04
2019/12/04
Sarah Baartman (ESB)
Blitz
5
0.18
9
9
7.0
1601.0
1535.1
Analysis
8
2019 USSA Championships (Open)
2019/12/02
2019/12/06
Sarah Baartman (ESB)
Standard
90
0.94
9
9
6.5
1601.0
1590.5
Analysis
7
2019 Alekhine Open (A)
2019/08/09
2019/08/10
Tshwane (GTP)
Standard
120
1.00
5
5
2.0
1615.6
1604.2
Analysis
6
Eureka Chess Open 2019 (A)
2019/07/27
2019/07/27
Sedibeng (GSV)
Standard
61
0.83
5
5
2.0
1596.7
1575.1
Analysis
5
2019 SWVG Arnold Classic (Blitz Open)
2019/05/19
2019/05/19
Tshwane (GTP)
Blitz
5
0.18
10
10
7.0
1570.1
1536.1
Analysis
4
2019 SWVG Arnold Classic (Rapid Open)
2019/05/18
2019/05/19
Tshwane (GTP)
Rapid
35
0.66
10
10
7.0
1570.1
1536.1
Analysis
3
Dirk de Koster Chess Open 2019 (A)
2019/04/13
2019/04/13
Sedibeng (GSV)
Standard
61
0.83
5
5
3.5
1572.5
1579.3
Analysis
2
2019 Hervormde Kerk (Open)
2019/03/09
2019/03/09
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
5.0
1554.2
1557.9
Analysis
1
Wesvalia 2019 (A)
2019/02/16
2019/02/16
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
5
4.5
1536.1
1536.1
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
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
Standard
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
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
101
59
18
24
68.0
67.3
147.3
1544.0
1691.3
White
47
30
9
8
34.5
73.4
198.9
1519.0
1717.9
Black
54
29
9
16
33.5
62.0
102.3
1565.8
1668.1
Standard
All
72
39
16
17
47.0
65.3
129.9
1579.6
1709.5
White
33
21
8
4
25.0
75.8
218.9
1533.6
1752.6
Black
39
18
8
13
22.0
56.4
54.5
1618.5
1673.0
Rapid
All
10
6
2
2
7.0
70.0
170.0
1499.9
1669.9
White
5
2
1
2
2.5
50.0
0.0
1545.3
1545.3
Black
5
4
1
0
4.5
90.0
340.0
1454.5
1794.5
Blitz
All
19
14
0
5
14.0
73.7
201.3
1432.2
1633.5
White
9
7
0
2
7.0
77.8
236.1
1450.6
1686.7
Black
10
7
0
3
7.0
70.0
170.0
1415.6
1585.6
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
104053107
Govender, Y (Yaduvir)
3
1.0
1
0
2
33.3
1579.0
-141.7
1437.3
View list
2
195061205
Lodi, K (Khotso)
2
2.0
2
0
0
100.0
1655.8
425.0
2080.8
View list
3
103007373
Dinham, J (James)
2
1.0
1
0
1
50.0
1641.3
0.0
1641.3
View list
4
106053297
Govender, S (Shevern)
2
1.0
1
0
1
50.0
1606.2
0.0
1606.2
View list
5
100080203
Nkuna, MJ (Moeletsi)
2
1.0
1
0
1
50.0
1660.5
0.0
1660.5
View list
6
101057918
Vundla, N (Mthandazo)
2
0.5
0
1
1
25.0
1654.7
-212.5
1442.2
View list
7
199021497
Masiya, MA (Mfundo)
2
0.0
0
0
2
0.0
1601.0
-425.0
1176.0
View list
8
101023373
Mlahleki, V (Vusimuzi)
2
0.0
0
0
2
0.0
1655.8
-425.0
1230.8
View list
9
1000100532
Gafane, H (Harry)
1
1.0
1
0
0
100.0
1601.0
425.0
2026.0
View list
10
102009689
Fouche, J (Janu)
1
1.0
1
0
0
100.0
1536.1
425.0
1961.1
View list
11
107086443
Felix, H (Harrison)
1
1.0
1
0
0
100.0
1570.1
425.0
1995.1
View list
12
202008750
Emanuel, P (Prithee)
1
1.0
1
0
0
100.0
1572.5
425.0
1997.5
View list
13
194007815
Du Plessis, H (Heinco)
1
1.0
1
0
0
100.0
1662.1
425.0
2087.1
View list
14
100071794
Dortley, D (Devon)
1
1.0
1
0
0
100.0
1744.0
425.0
2169.0
View list
15
1010151831
Dlamini, R (Reginald)
1
1.0
1
0
0
100.0
1744.0
425.0
2169.0
View list
16
101093344
Dhlamini, B (Brian)
1
1.0
1
0
0
100.0
1554.2
425.0
1979.2
View list
17
100003938
Burger, SW (Schalk)
1
1.0
1
0
0
100.0
1570.1
425.0
1995.1
View list
18
102053241
Buchner, E (Eduard)
1
1.0
1
0
0
100.0
1712.6
425.0
2137.6
View list
19
1990140302
Cele, M (Mpendulo)
1
1.0
1
0
0
100.0
1744.0
425.0
2169.0
View list
20
101001711
Bekker, GD (Gerhardus)
1
1.0
1
0
0
100.0
1554.2
425.0
1979.2
View list