Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Pietersen, J (Juwellyn)
Dob:
2005/07/27 (U20)
Gender:
Male
Chess SA id:
105078145
FIDE id:
Region:
Eden (WEG)
Citizen:
RSA
Title(s):
Last active:
2022/04/09 (770 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
1185.4
Curent Weighted rating
1185.4
Curent Weighted performance
662.7
Current official/published rating (highest between Raw, WR and WP)
1185.4
Current floor (min rating allowed)
689.8
Current highest rating achieved
1189.8
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)
±169.3
Current Raw change used (final)
0.0
Projected new Raw rating
1185.4
Projected new Weighed rating
1185.4
Projected new Weighted performance
662.7
Projected new official/published rating (highest between new Raw, new WR and new WP)
1185.4
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1189.8
Projected new floor
689.8
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
1186.7
Curent Weighted rating
1186.7
Curent Weighted performance
661.8
Current official/published rating (highest between Raw, WR and WP)
1186.7
Current floor (min rating allowed)
691.1
Current highest rating achieved
1191.1
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)
±169.0
Current Raw change used (final)
0.0
Projected new Raw rating
1186.7
Projected new Weighed rating
1186.7
Projected new Weighted performance
661.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1186.7
Projected effective change (new Official - current Official)
-0.0
Projected new highest rating
1191.1
Projected new floor
691.1
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
714.2
Curent Weighted rating
714.2
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
714.2
Current floor (min rating allowed)
500.0
Current highest rating achieved
714.2
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)
±331.3
Current Raw change used (final)
0.0
Projected new Raw rating
714.2
Projected new Weighed rating
714.2
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
714.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
714.2
Projected new floor
500.0
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
714.2
Curent Weighted rating
714.2
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
714.2
Current floor (min rating allowed)
500.0
Current highest rating achieved
714.2
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)
±331.3
Current Raw change used (final)
0.0
Projected new Raw rating
714.2
Projected new Weighed rating
714.2
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
714.2
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
714.2
Projected new floor
500.0
Projected new K-facor
40
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
13
Eden Proewe 2 2022 (O18 Seuns)
2022/04/09
2022/04/09
Eden District (WEG)
Standard
65
0.85
5
0
0.0
1185.4
1186.7
Analysis
12
Eden Proewe 1 2022 (O18 Seuns)
2022/03/12
2022/03/12
Eden District (WEG)
Standard
65
0.85
5
5
3.0
1142.2
1133.5
Analysis
11
Eden Schools Closed Trials 1 2020 (U15 Boys)
2020/03/07
2020/03/07
Eden District (WEG)
Standard
65
0.85
5
4
1.0
1189.8
1191.1
Analysis
10
Oudtshoorn Proewe 1 2020 (O15)
2020/02/15
2020/02/15
Eden District (WEG)
Standard
60
0.83
5
5
4.0
1143.3
1135.1
Analysis
9
Eden Trials 3 2019 (U16 Open)
2019/05/11
2019/05/11
Eden District (WEG)
Standard
60
0.83
5
4
3.0
1052.5
1046.8
Analysis
8
Eden Trials 2 2019 (U16 Open)
2019/04/13
2019/04/13
Eden District (WEG)
Standard
60
0.83
5
5
3.0
1009.9
1003.5
Analysis
7
Eden Trials 1 2019 (U16 Open)
2019/03/02
2019/03/02
Eden District (WEG)
Standard
60
0.83
5
5
2.5
1014.0
1008.4
Analysis
6
Oudtshoorn Trials 3 2019 (U16)
2019/02/16
2019/02/16
Eden District (WEG)
Standard
60
0.83
5
5
3.0
827.8
848.6
Analysis
5
Oudtshoorn Trials 2 2019 (U16)
2019/02/09
2019/02/09
Eden District (WEG)
Standard
60
0.83
5
5
3.5
827.8
848.6
Analysis
4
Oudtshoorn Trials 1 2019 (U16)
2019/01/19
2019/01/19
Eden District (WEG)
Standard
60
0.83
5
0
0.0
827.8
848.6
Analysis
3
EDENSC Closed 3 2018 (U14 Open)
2018/05/12
2018/05/12
Eden District (WEG)
Standard
60
0.83
5
5
3.0
808.5
827.4
Analysis
2
EDENSC Closed 2 2018 (U14 Open)
2018/04/14
2018/04/14
Eden District (WEG)
Standard
60
0.83
5
5
3.0
754.4
765.4
Analysis
1
EDENSC Closed 1 2018 (U14 Boys)
2018/03/10
2018/03/10
Eden District (WEG)
Standard
60
0.83
5
5
2.5
714.2
714.2
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
53
30
3
20
31.5
59.4
80.2
1031.4
1111.6
White
27
17
2
8
18.0
66.7
141.7
1021.6
1163.3
Black
26
13
1
12
13.5
51.9
16.3
1041.6
1057.9
Standard
All
53
30
3
20
31.5
59.4
80.2
1031.4
1111.6
White
27
17
2
8
18.0
66.7
141.7
1021.6
1163.3
Black
26
13
1
12
13.5
51.9
16.3
1041.6
1057.9
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
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1050098451
Ayford, K (Keanu)
3
3.0
3
0
0
100.0
803.3
425.0
1228.3
View list
2
1050098459
Matthews, I (Isiah)
3
2.0
2
0
1
66.7
789.9
141.7
931.6
View list
3
105054141
Koen, I (Ivan)
3
0.0
0
0
3
0.0
1028.8
-425.0
603.8
View list
4
105088331
Bezuidenhout, R (Ross)
2
2.0
2
0
0
100.0
1101.9
425.0
1526.9
View list
5
204078121
Saayman, N (Nerene)
2
2.0
2
0
0
100.0
918.8
425.0
1343.8
View list
6
106061679
Sheldon, A (Ackim)
2
1.0
1
0
1
50.0
761.4
0.0
761.4
View list
7
105054129
Daniels, M (Muhammed)
2
0.0
0
0
2
0.0
1012.0
-425.0
587.0
View list
8
1050137857
Chari, T (Tashinga)
1
1.0
1
0
0
100.0
1142.2
425.0
1567.2
View list
9
1050107888
Brown, M (Marquin)
1
1.0
1
0
0
100.0
1052.5
425.0
1477.5
View list
10
204051966
Bokwana, W (Wilmarie)
1
1.0
1
0
0
100.0
1014.0
425.0
1439.0
View list
11
206069551
Festus, A (Ambe)
1
1.0
1
0
0
100.0
754.4
425.0
1179.4
View list
12
205078149
Esau, S (Shenique)
1
1.0
1
0
0
100.0
1143.3
425.0
1568.3
View list
13
1040098469
Dreyer, D (Dylan)
1
1.0
1
0
0
100.0
827.8
425.0
1252.8
View list
14
1050107885
Draai, K (Kevin)
1
1.0
1
0
0
100.0
1052.5
425.0
1477.5
View list
15
1040137864
Keye, L (Lithemba)
1
1.0
1
0
0
100.0
1142.2
425.0
1567.2
View list
16
106086249
Kasper, V (Vernon)
1
1.0
1
0
0
100.0
1143.3
425.0
1568.3
View list
17
2050098457
Karelse, E (Erin-Leigh)
1
1.0
1
0
0
100.0
754.4
425.0
1179.4
View list
18
1050098458
Mostert, R (Richard)
1
1.0
1
0
0
100.0
1009.9
425.0
1434.9
View list
19
106065014
Oosthuizen, L (Luka)
1
1.0
1
0
0
100.0
714.2
425.0
1139.2
View list
20
104048747
Pondo, B (Brandon-Lee)
1
1.0
1
0
0
100.0
1052.5
425.0
1477.5
View list