Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Petro, Y (Yulin)
Dob:
2006/01/01 (U20)
Gender:
Female
Chess SA id:
206078547
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2021/03/27 (1149 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
1147.6
Curent Weighted rating
1147.6
Curent Weighted performance
586.9
Current official/published rating (highest between Raw, WR and WP)
1147.6
Current floor (min rating allowed)
651.9
Current highest rating achieved
1151.9
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)
±178.7
Current Raw change used (final)
0.0
Projected new Raw rating
1147.6
Projected new Weighed rating
1147.6
Projected new Weighted performance
586.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1147.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1151.9
Projected new floor
651.9
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
1075.6
Curent Weighted rating
1075.6
Curent Weighted performance
397.6
Current official/published rating (highest between Raw, WR and WP)
1075.6
Current floor (min rating allowed)
642.0
Current highest rating achieved
1142.0
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)
±198.0
Current Raw change used (final)
0.0
Projected new Raw rating
1075.6
Projected new Weighed rating
1075.6
Projected new Weighted performance
397.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1075.6
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1142.0
Projected new floor
642.0
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
1136.4
Curent Weighted rating
1136.4
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1136.4
Current floor (min rating allowed)
655.2
Current highest rating achieved
1155.2
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)
±181.5
Current Raw change used (final)
0.0
Projected new Raw rating
1136.4
Projected new Weighed rating
1136.4
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1136.4
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1155.2
Projected new floor
655.2
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
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
655.2
Current highest rating achieved
1200.0
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1200.0
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1200.0
Projected new floor
655.2
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
8
Olifantsrivier CC 2021 (Invitational)
2021/03/27
2021/03/27
West Coast (WCU)
Rapid
25
0.54
7
7
3.5
1116.5
1138.0
Analysis
7
West Coast Schools Prestige 2020 (U15 Girls)
2020/03/07
2020/03/07
West Coast (WCU)
Rapid
30
0.60
5
4
2.0
1097.5
1155.2
Analysis
6
Bo-Weskus Skole Prestige 2020 (O15+O18 Dogters)
2020/02/15
2020/02/15
West Coast (WCU)
Standard
60
0.83
6
6
3.0
1064.3
1039.6
Analysis
5
Western Cape Schools Individuals 2019 (U15 Girls)
2019/05/04
2019/05/05
Eden District (WEG)
Standard
60
0.83
6
6
2.5
1091.9
1063.2
Analysis
4
Weskus Skole Prestige Skaak Kampioenskappe 2019 (O15 Dogters)
2019/03/02
2019/04/06
West Coast (WCU)
Standard
60
0.83
6
6
3.0
1093.9
1060.4
Analysis
3
Bo-Weskus Skole Skaak Prestige 2019 (Ope Dogters)
2019/02/16
2019/02/16
West Coast (WCU)
Rapid
30
0.60
7
7
4.0
1083.8
1200.0
Analysis
2
Western Cape Schools Individuals 2018 (U13 Girls)
2018/05/19
2018/05/20
Overberg (WOS)
Standard
60
0.83
6
6
2.0
1151.9
1142.0
Analysis
1
West Coast Schools Prestige Individual Championship 2018 (U13 Girls)
2018/03/10
2018/03/24
West Coast (WCU)
Standard
60
0.83
6
5
3.0
1200.0
1200.0
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
47
22
2
23
23.0
48.9
-9.0
1090.3
1081.3
White
24
10
2
12
11.0
45.8
-35.4
1042.8
1007.4
Black
23
12
0
11
12.0
52.2
18.5
1140.0
1158.4
Standard
All
29
13
1
15
13.5
46.6
-29.3
1020.9
991.6
White
15
7
1
7
7.5
50.0
0.0
962.4
962.4
Black
14
6
0
8
6.0
42.9
-60.7
1083.6
1022.9
Rapid
All
18
9
1
8
9.5
52.8
23.6
1202.2
1225.8
White
9
3
1
5
3.5
38.9
-94.4
1176.8
1082.4
Black
9
6
0
3
6.0
66.7
141.7
1227.6
1369.3
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
205060329
Maletta, L (Legene)
4
0.0
0
0
4
0.0
1089.6
-425.0
664.6
View list
2
205078541
Beyers, S (Shireen)
2
2.0
2
0
0
100.0
1088.8
425.0
1513.8
View list
3
204078531
Ligwa, A (Anastacia)
2
0.5
0
1
1
25.0
1105.2
-212.5
892.7
View list
4
206060328
Maarman, P (Perusha)
2
0.0
0
0
2
0.0
1080.9
-425.0
655.9
View list
5
205078542
Cloete, R (Roberta)
1
1.0
1
0
0
100.0
1097.5
425.0
1522.5
View list
6
205083973
Cloete, L (Lameaze)
1
1.0
1
0
0
100.0
1083.8
425.0
1508.8
View list
7
2040108697
Festus, T (Tracey Lee Rogail)
1
1.0
1
0
0
100.0
1091.9
425.0
1516.9
View list
8
206068758
Klaase, A (Angelique)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
9
2060131889
Julies, F (Fredeline)
1
1.0
1
0
0
100.0
1064.3
425.0
1489.3
View list
10
2060131888
Johnson, J (Jesdine)
1
1.0
1
0
0
100.0
1064.3
425.0
1489.3
View list
11
2050110526
Jantjies, J (Jo-Ann)
1
1.0
1
0
0
100.0
1083.8
425.0
1508.8
View list
12
204086683
Green, CL (Carol-Lynne)
1
1.0
1
0
0
100.0
1091.9
425.0
1516.9
View list
13
204093490
Blaauw, D (Dominique)
1
1.0
1
0
0
100.0
1093.9
425.0
1518.9
View list
14
1820133967
Maletta, J (Johan)
1
1.0
1
0
0
100.0
1116.5
425.0
1541.5
View list
15
206056203
Nel, L (Leigh-Andrea)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
16
206077625
Oldroyd, E (Edith)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
17
205083975
Owies, L (Lehanna)
1
1.0
1
0
0
100.0
1064.3
425.0
1489.3
View list
18
1050110469
Owies, R (Raydn)
1
1.0
1
0
0
100.0
1116.5
425.0
1541.5
View list
19
206070452
Pistorius, K (Kayla)
1
1.0
1
0
0
100.0
1151.9
425.0
1576.9
View list
20
1100110506
Saal, F (Fabian)
1
1.0
1
0
0
100.0
1116.5
425.0
1541.5
View list