Chess South Africa
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Chess South Africa
Witbooi, JB (Jan)
Dob:
1999/02/20 (Adult)
Gender:
Male
Chess SA id:
199055897
FIDE id:
Region:
Dr Kenneth Kaunda (NWP)
Citizen:
RSA
Title(s):
Last active:
2022/12/09 (521 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
1320.7
Curent Weighted rating
1321.4
Curent Weighted performance
793.3
Current official/published rating (highest between Raw, WR and WP)
1321.4
Current floor (min rating allowed)
830.8
Current highest rating achieved
1330.8
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)
±139.6
Current Raw change used (final)
0.0
Projected new Raw rating
1320.7
Projected new Weighed rating
1321.2
Projected new Weighted performance
793.3
Projected new official/published rating (highest between new Raw, new WR and new WP)
1321.2
Projected effective change (new Official - current Official)
-0.2
Projected new highest rating
1330.8
Projected new floor
830.8
Projected new K-facor
36
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
1322.2
Curent Weighted rating
1322.7
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1322.7
Current floor (min rating allowed)
829.4
Current highest rating achieved
1329.4
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)
±139.3
Current Raw change used (final)
0.0
Projected new Raw rating
1322.2
Projected new Weighed rating
1322.6
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1322.6
Projected effective change (new Official - current Official)
-0.1
Projected new highest rating
1329.4
Projected new floor
829.4
Projected new K-facor
36
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
1207.1
Curent Weighted rating
1207.1
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1207.1
Current floor (min rating allowed)
707.1
Current highest rating achieved
1207.1
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)
±164.1
Current Raw change used (final)
0.0
Projected new Raw rating
1207.1
Projected new Weighed rating
1207.1
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1207.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1207.1
Projected new floor
707.1
Projected new K-facor
36
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
1319.5
Curent Weighted rating
1319.5
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1319.5
Current floor (min rating allowed)
707.1
Current highest rating achieved
1319.5
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)
±139.9
Current Raw change used (final)
0.0
Projected new Raw rating
1319.5
Projected new Weighed rating
1319.5
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1319.5
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1319.5
Projected new floor
707.1
Projected new K-facor
36
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
6
Ussa Chess Championships 2022 (Open)
2022/12/05
2022/12/09
Frances Baard (NCF)
Standard
120
1.00
9
9
4.5
1330.8
1329.4
Analysis
5
JNW Club - Trinityhouse Little Falls Open 2020 (B)
2020/03/14
2020/03/14
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.5
1241.8
1216.7
Analysis
4
2019 USSA Championships (Blitz)
2019/12/04
2019/12/04
Sarah Baartman (ESB)
Blitz
5
0.18
9
9
5.5
1169.9
1207.1
Analysis
3
2019 USSA Championships (Open)
2019/12/02
2019/12/06
Sarah Baartman (ESB)
Standard
90
0.94
9
9
4.0
1169.9
1169.9
Analysis
2
Hervormde Kerk 2018 (A)
2018/03/10
2018/03/10
Dr Kenneth Kaunda (NWP)
Standard
60
0.83
5
0
0.0
1169.9
1169.9
Analysis
1
South African Junior Team Championships 2017 (U20A)
2018/01/04
2018/01/08
4 Knights (4K)
Standard
120
1.00
7
7
0.0
1207.1
1207.1
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
39
15
7
17
18.5
47.4
-21.8
1425.3
1403.5
White
18
7
4
7
9.0
50.0
0.0
1457.8
1457.8
Black
21
8
3
10
9.5
45.2
-40.5
1397.5
1357.0
Standard
All
30
10
6
14
13.0
43.3
-56.7
1408.4
1351.7
White
13
5
3
5
6.5
50.0
0.0
1445.6
1445.6
Black
17
5
3
9
6.5
38.2
-100.0
1379.9
1279.9
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
9
5
1
3
5.5
61.1
94.4
1481.9
1576.3
White
5
2
1
2
2.5
50.0
0.0
1489.5
1489.5
Black
4
3
0
1
3.0
75.0
212.5
1472.3
1684.8
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
198011986
Hastie, SEH (Sachin)
2
0.5
0
1
1
25.0
1188.5
-212.5
976.0
View list
2
193020110
Malatji, HT (Happy)
1
1.0
1
0
0
100.0
1169.9
425.0
1594.9
View list
3
194052815
Mafongosi, X (Xhanti)
1
1.0
1
0
0
100.0
1169.9
425.0
1594.9
View list
4
1020140331
Mafalo, K (Khutso)
1
1.0
1
0
0
100.0
1330.8
425.0
1755.8
View list
5
100081978
Madiya, S (Sisekelo)
1
1.0
1
0
0
100.0
1169.9
425.0
1594.9
View list
6
196018691
Lubambo, S (Skhulile)
1
1.0
1
0
0
100.0
1169.9
425.0
1594.9
View list
7
103060504
Botes, C (Christiaan)
1
1.0
1
0
0
100.0
1241.8
425.0
1666.8
View list
8
101001711
Bekker, GD (Gerhardus)
1
1.0
1
0
0
100.0
1241.8
425.0
1666.8
View list
9
1000119871
Mathe, S (Sibusiso)
1
1.0
1
0
0
100.0
1169.9
425.0
1594.9
View list
10
197057622
Mithi, D (Dumiso)
1
1.0
1
0
0
100.0
1169.9
425.0
1594.9
View list
11
1990136225
Ndlovu, S (Siboniso)
1
1.0
1
0
0
100.0
1330.8
425.0
1755.8
View list
12
194027889
Nkoana, MN (Mohololo)
1
1.0
1
0
0
100.0
1241.8
425.0
1666.8
View list
13
1990119863
Sajini, A (Athenkosi)
1
1.0
1
0
0
100.0
1169.9
425.0
1594.9
View list
14
1980147016
Sithole, B (Bongumusa Kevin)
1
1.0
1
0
0
100.0
1330.8
425.0
1755.8
View list
15
1000119879
Tebogo, B (Blessings Makofane)
1
1.0
1
0
0
100.0
1169.9
425.0
1594.9
View list
16
102080948
Van Stryp, O (Ockert)
1
1.0
1
0
0
100.0
1241.8
425.0
1666.8
View list
17
1010115854
De Villiers, AM (Ammen Mohammed)
1
0.5
0
1
0
50.0
1330.8
0.0
1330.8
View list
18
106073248
Allison, LM (Liam)
1
0.5
0
1
0
50.0
1241.8
0.0
1241.8
View list
19
100069253
Mbokazi, B (Banele)
1
0.5
0
1
0
50.0
1330.8
0.0
1330.8
View list
20
1020140339
Mosehlana, T (Tshepang)
1
0.5
0
1
0
50.0
1330.8
0.0
1330.8
View list