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:
2024/05/19 (6 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
1381.9
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
12
Score (S)
8.0
Expected score (We)
4.75
Difference (S-We)
3.25
Current Raw change (no limits, including tournament time weight)
85.5
Current min/max change allowed (with limits)
±79.5
Current Raw change used (final)
79.5
Projected new Raw rating
1795.4
Projected new Weighed rating
1734.5
Projected new Weighted performance
1381.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1795.4
Projected effective change (new Official - current Official)
+66.3
Projected new highest rating
1795.4
Projected new floor
1295.4
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
1377.9
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
12
Score (S)
8.0
Expected score (We)
4.77
Difference (S-We)
3.23
Current Raw change (no limits, including tournament time weight)
90.4
Current min/max change allowed (with limits)
±78.7
Current Raw change used (final)
78.7
Projected new Raw rating
1801.7
Projected new Weighed rating
1739.7
Projected new Weighted performance
1377.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1801.7
Projected effective change (new Official - current Official)
+67.4
Projected new highest rating
1801.7
Projected new floor
1301.7
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
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
Tournament:
West Coast & Mykonos Open 2024 (Elite)
Start:
2024/05/17
End:
2024/05/19
Host:
WCU
Type:
Standard
Time:
90
Time weight:
0.94
Rounds:
6
Games:
6
Score:
4.0
Main rating:
1715.9
Rating gain/loss:
28.2
Type rating:
1723.0
Rating gain/loss:
25.5
Analysis
Tournament:
Steinitz Chess Festival 2024 (Championship)
Start:
2024/05/10
End:
2024/05/12
Host:
WCT
Type:
Standard
Time:
90
Time weight:
0.94
Rounds:
6
Games:
6
Score:
4.0
Main rating:
1715.9
Rating gain/loss:
57.4
Type rating:
1723.0
Rating gain/loss:
65.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
West Coast & Mykonos Open 2024 (Elite)
2024/05/17
2024/05/19
West Coast (WCU)
Standard
90
0.94
6
6
4.0
1715.9
1723.0
Analysis
1
Steinitz Chess Festival 2024 (Championship)
2024/05/10
2024/05/12
Cape Town (WCT)
Standard
90
0.94
6
6
4.0
1715.9
1723.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
17
West Coast & Mykonos Open 2024 (Elite)
2024/05/17
2024/05/19
West Coast (WCU)
Standard
90
0.94
6
6
4.0
1715.9
1723.0
Analysis
16
Steinitz Chess Festival 2024 (Championship)
2024/05/10
2024/05/12
Cape Town (WCT)
Standard
90
0.94
6
6
4.0
1715.9
1723.0
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
12
6
4
2
8.0
66.7
141.7
1818.0
1959.7
White
6
3
3
0
4.5
75.0
212.5
1854.9
2067.4
Black
6
3
1
2
3.5
58.3
70.8
1781.1
1851.9
Standard
All
12
6
4
2
8.0
66.7
141.7
1818.0
1959.7
White
6
3
3
0
4.5
75.0
212.5
1854.9
2067.4
Black
6
3
1
2
3.5
58.3
70.8
1781.1
1851.9
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
113
65
22
26
76.0
67.3
146.7
1573.1
1719.8
White
53
33
12
8
39.0
73.6
200.5
1557.0
1757.5
Black
60
32
10
18
37.0
61.7
99.2
1587.3
1686.5
Standard
All
84
45
20
19
55.0
65.5
131.5
1613.7
1745.2
White
39
24
11
4
29.5
75.6
217.9
1583.0
1801.0
Black
45
21
9
15
25.5
56.7
56.7
1640.2
1696.9
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
1070148235
Rogov, M (Matfey)
2
0.5
0
1
1
25.0
1715.9
-212.5
1503.4
View list
7
101057918
Vundla, N (Mthandazo)
2
0.5
0
1
1
25.0
1654.7
-212.5
1442.2
View list
8
199021497
Masiya, MA (Mfundo)
2
0.0
0
0
2
0.0
1601.0
-425.0
1176.0
View list
9
101023373
Mlahleki, V (Vusimuzi)
2
0.0
0
0
2
0.0
1655.8
-425.0
1230.8
View list
10
202008750
Emanuel, P (Prithee)
1
1.0
1
0
0
100.0
1572.5
425.0
1997.5
View list
11
194007815
Du Plessis, H (Heinco)
1
1.0
1
0
0
100.0
1662.1
425.0
2087.1
View list
12
100071794
Dortley, D (Devon)
1
1.0
1
0
0
100.0
1744.0
425.0
2169.0
View list
13
1010151831
Dlamini, R (Reginald)
1
1.0
1
0
0
100.0
1744.0
425.0
2169.0
View list
14
101093344
Dhlamini, B (Brian)
1
1.0
1
0
0
100.0
1554.2
425.0
1979.2
View list
15
100003938
Burger, SW (Schalk)
1
1.0
1
0
0
100.0
1570.1
425.0
1995.1
View list
16
102053241
Buchner, E (Eduard)
1
1.0
1
0
0
100.0
1712.6
425.0
2137.6
View list
17
1990140302
Cele, M (Mpendulo)
1
1.0
1
0
0
100.0
1744.0
425.0
2169.0
View list
18
1120130970
Bell, L (Luke)
1
1.0
1
0
0
100.0
1715.9
425.0
2140.9
View list
19
101001711
Bekker, GD (Gerhardus)
1
1.0
1
0
0
100.0
1554.2
425.0
1979.2
View list
20
1090104250
Bhudai, A (Arman)
1
1.0
1
0
0
100.0
1570.1
425.0
1995.1
View list