Chess South Africa
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Chess South Africa
Lyu, Y (Yichen)
Dob:
2009/10/22 (U16)
Gender:
Male
Chess SA id:
1090114202
FIDE id:
Region:
iLembe (KIK)
Citizen:
RSA
Title(s):
Last active:
2024/05/19 (38 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
Current Raw rating
1223.4
Current Weighted rating
1154.4
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1223.4
Current highest rating achieved
1223.4
Current floor (min rating allowed)
723.4
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)
±160.4
Current Raw change used (final)
0.0
Projected new Raw rating
1223.4
Projected new Weighed rating
1062.3
Projected new Weighted performance
565.1
Projected new final Raw rating (if new WP > new Raw)
1223.4
Projected new highest rating
1223.4
Projected new floor
723.4
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1223.4
Projected effective change (new Official - current Official)
=0.0
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
Current Raw rating
1261.9
Current Weighted rating
1205.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1261.9
Current highest rating achieved
1261.9
Current floor (min rating allowed)
761.9
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)
±151.8
Current Raw change used (final)
0.0
Projected new Raw rating
1261.9
Projected new Weighed rating
1108.7
Projected new Weighted performance
483.9
Projected new final Raw rating (if new WP > new Raw)
1261.9
Projected new highest rating
1261.9
Projected new floor
761.9
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1261.9
Projected effective change (new Official - current Official)
=0.0
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
Current Raw rating
1118.0
Current Weighted rating
1118.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1118.0
Current highest rating achieved
1118.0
Current floor (min rating allowed)
618.0
Current K-factor
40
s
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)
±186.4
Current Raw change used (final)
0.0
Projected new Raw rating
1118.0
Projected new Weighed rating
1028.6
Projected new Weighted performance
106.8
Projected new final Raw rating (if new WP > new Raw)
1118.0
Projected new highest rating
1118.0
Projected new floor
618.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1118.0
Projected effective change (new Official - current Official)
=0.0
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
Current Raw rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
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
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
1
2024 ECA 2nd Youth Trials (U16)
2024/05/18
2024/05/19
Ethekwini (KED)
Standard
60
0.83
6
6
4.0
1148.4
1200.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
2
2024 ECA 2nd Youth Trials (U16)
2024/05/18
2024/05/19
Ethekwini (KED)
Standard
60
0.83
6
6
4.0
1148.4
1200.0
Analysis
1
Centenary Chess Tournament 2019 (Senior Primary)
2019/05/11
2019/05/11
iLembe (KIK)
Rapid
30
0.60
6
6
2.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
6
3
2
1
4.0
66.7
141.7
1329.3
1471.0
White
3
1
1
1
1.5
50.0
0.0
1374.5
1374.5
Black
3
2
1
0
2.5
83.3
283.3
1284.1
1567.4
Standard
All
6
3
2
1
4.0
66.7
141.7
1329.3
1471.0
White
3
1
1
1
1.5
50.0
0.0
1374.5
1374.5
Black
3
2
1
0
2.5
83.3
283.3
1284.1
1567.4
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
12
5
2
5
6.0
50.0
0.0
1182.2
1182.2
White
6
2
1
3
2.5
41.7
-70.8
1172.3
1101.4
Black
6
3
1
2
3.5
58.3
70.8
1192.1
1262.9
Standard
All
6
3
2
1
4.0
66.7
141.7
1329.3
1471.0
White
3
1
1
1
1.5
50.0
0.0
1374.5
1374.5
Black
3
2
1
0
2.5
83.3
283.3
1284.1
1567.4
Rapid
All
6
2
0
4
2.0
33.3
-141.7
1035.1
893.4
White
3
1
0
2
1.0
33.3
-141.7
970.0
828.4
Black
3
1
0
2
1.0
33.3
-141.7
1100.1
958.5
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
106088917
Luthuli, K (Khwezi)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
2
1090157995
Mngadi, F (Fredrick)
1
1.0
1
0
0
100.0
1148.4
425.0
1573.4
View list
3
1100304968
Mkhize, O (Olebogeng)
1
1.0
1
0
0
100.0
1148.4
425.0
1573.4
View list
4
1080114200
Sagathavan, D (Deeyasha)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
5
1100136540
Ntenga, G (Genius)
1
1.0
1
0
0
100.0
1148.4
425.0
1573.4
View list
6
1090112248
Subramoney, R (Riaan)
1
0.5
0
1
0
50.0
1148.4
0.0
1148.4
View list
7
1100097611
Narainsamy, T (Taygen)
1
0.5
0
1
0
50.0
1148.4
0.0
1148.4
View list
8
110092160
Magudulela, N (Ndumiso)
1
0.0
0
0
1
0.0
1148.4
-425.0
723.4
View list
9
208079424
Lobo, A (Abrianna)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
10
1090103646
Jugree, A (Arav)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
11
109082579
Hornsby, M (Mikah)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list
12
2080098933
Bhatia, A (Aarshbir)
1
0.0
0
0
1
0.0
1200.0
-425.0
775.0
View list