Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Zhu, R (Ryan Yuancheng)
Dob:
2015/03/05 (U10)
Gender:
Male
Chess SA id:
1150151779
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2024/06/01 (17 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
1359.8
Current Weighted rating
1370.5
Current Weighted performance
1314.6
Current official/published rating (highest between Raw, WR and WP)
1370.5
Current highest rating achieved
1461.6
Current floor (min rating allowed)
961.6
Current K-factor
32
Games played this month
5
Score (S)
4.5
Expected score (We)
2.87
Difference (S-We)
1.37
Current Raw change (no limits, including tournament time weight)
43.8
Current min/max change allowed (with limits)
±132.1
Current Raw change used (final)
43.8
Projected new Raw rating
1403.6
Projected new Weighed rating
1264.8
Projected new Weighted performance
1432.9
Projected new final Raw rating (if new WP > new Raw)
1432.9
Projected new highest rating
1461.6
Projected new floor
961.6
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1432.9
Projected effective change (new Official - current Official)
+62.4
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
1351.3
Current Weighted rating
1364.9
Current Weighted performance
1317.9
Current official/published rating (highest between Raw, WR and WP)
1364.9
Current highest rating achieved
1441.9
Current floor (min rating allowed)
941.9
Current K-factor
32
Games played this month
5
Score (S)
4.5
Expected score (We)
2.89
Difference (S-We)
1.61
Current Raw change (no limits, including tournament time weight)
51.5
Current min/max change allowed (with limits)
±133.7
Current Raw change used (final)
51.5
Projected new Raw rating
1402.8
Projected new Weighed rating
1259.6
Projected new Weighted performance
1432.9
Projected new final Raw rating (if new WP > new Raw)
1432.9
Projected new highest rating
1441.9
Projected new floor
941.9
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1432.9
Projected effective change (new Official - current Official)
+68.0
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
1278.1
Current Weighted rating
1264.3
Current Weighted performance
1291.7
Current official/published rating (highest between Raw, WR and WP)
1291.7
Current highest rating achieved
1307.2
Current floor (min rating allowed)
807.2
Current K-factor
36
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)
±148.4
Current Raw change used (final)
0.0
Projected new Raw rating
1278.1
Projected new Weighed rating
1164.8
Projected new Weighted performance
1291.7
Projected new final Raw rating (if new WP > new Raw)
1291.7
Projected new highest rating
1307.2
Projected new floor
807.2
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1291.7
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
Tournament:
Ekurhuleni Trails 1 2024 (U8+U10)
Start:
2024/06/01
End:
2024/06/01
Host:
GE
Type:
Standard
Time:
62
Time weight:
0.84
Rounds:
5
Games:
5
Score:
4.5
Main rating:
1359.8
Rating gain/loss:
43.8
Type rating:
1351.3
Rating gain/loss:
51.5
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
10
Ekurhuleni Trails 1 2024 (U8+U10)
2024/06/01
2024/06/01
Ekurhuleni (GE)
Standard
62
0.84
5
5
4.5
1359.8
1351.3
Analysis
9
Chess Power House May Open 2024 (D)
2024/05/25
2024/05/25
Johannesburg Metro (GJM)
Standard
60
0.83
5
4
3.0
1378.1
1375.3
Analysis
8
JMC Crawford International Sandton 2024 (U10)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1378.1
1375.3
Analysis
7
JMC Helpmekaar Kollege Tournament 2024 (U10)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1378.1
1375.3
Analysis
6
2024 KSNG CHess Academy Open Tournament (D1)
2024/04/06
2024/04/06
Tshwane (GTP)
Standard
60
0.83
5
5
1.0
1430.4
1441.9
Analysis
5
CPH St Andrew's Rapid 2024 (C)
2024/03/30
2024/03/30
Ekurhuleni (GE)
Rapid
20
0.47
5
5
3.0
1417.9
1302.9
Analysis
4
1st Knights Open Tournament 2024 (U10)
2024/03/23
2024/03/23
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1417.9
1422.4
Analysis
3
JNW Open - Classic - Crawford 2024 (U10)
2024/03/09
2024/03/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1417.9
1422.4
Analysis
2
Chess Power House 1st Rapid 2024 (C)
2024/02/24
2024/02/24
Johannesburg Metro (GJM)
Rapid
20
0.47
5
5
3.0
1427.7
1307.2
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U10B)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
0
0.0
1427.7
1422.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
18
Ekurhuleni Trails 1 2024 (U8+U10)
2024/06/01
2024/06/01
Ekurhuleni (GE)
Standard
62
0.84
5
5
4.5
1359.8
1351.3
Analysis
17
Chess Power House May Open 2024 (D)
2024/05/25
2024/05/25
Johannesburg Metro (GJM)
Standard
60
0.83
5
4
3.0
1378.1
1375.3
Analysis
16
JMC Crawford International Sandton 2024 (U10)
2024/05/11
2024/05/11
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1378.1
1375.3
Analysis
15
JMC Helpmekaar Kollege Tournament 2024 (U10)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1378.1
1375.3
Analysis
14
2024 KSNG CHess Academy Open Tournament (D1)
2024/04/06
2024/04/06
Tshwane (GTP)
Standard
60
0.83
5
5
1.0
1430.4
1441.9
Analysis
13
CPH St Andrew's Rapid 2024 (C)
2024/03/30
2024/03/30
Ekurhuleni (GE)
Rapid
20
0.47
5
5
3.0
1417.9
1302.9
Analysis
12
1st Knights Open Tournament 2024 (U10)
2024/03/23
2024/03/23
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1417.9
1422.4
Analysis
11
JNW Open - Classic - Crawford 2024 (U10)
2024/03/09
2024/03/09
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1417.9
1422.4
Analysis
10
Chess Power House 1st Rapid 2024 (C)
2024/02/24
2024/02/24
Johannesburg Metro (GJM)
Rapid
20
0.47
5
5
3.0
1427.7
1307.2
Analysis
9
2024 Gauteng Inter-Region Chess Championship (U10B)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
0
0.0
1427.7
1422.4
Analysis
8
Chess is My Lifestyle 2023 (Grade 0-2)
2023/12/09
2023/12/09
Johannesburg Metro (GJM)
Rapid
30
0.60
5
5
4.0
1425.0
1267.6
Analysis
7
Chess Molecules Rapid 2023 (Grade 3+4)
2023/09/23
2023/09/23
Ekurhuleni (GE)
Rapid
30
0.60
5
5
3.0
1436.3
1260.8
Analysis
6
Chess Power House 2023 (D)
2023/08/19
2023/08/19
Johannesburg Metro (GJM)
Standard
90
0.94
5
5
3.0
1461.6
1367.7
Analysis
5
GoForChess Junior Chess Championship Grayston 2023 (Juniors)
2023/07/16
2023/07/16
Johannesburg Metro (GJM)
Standard
60
0.83
5
4
4.0
1327.3
1315.1
Analysis
4
Ekurhuleni Chess Trial 3 2023 (U10)
2023/06/17
2023/06/17
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1252.1
1260.0
Analysis
3
Chess Molecules 16 June Tournament 2023 (Grade 3+4)
2023/06/16
2023/06/16
Ekurhuleni (GE)
Rapid
30
0.60
5
5
4.0
1252.1
1200.0
Analysis
2
Ekhuruleni Chess Trials 1 2023 (U8+U10)
2023/03/25
2023/03/25
Ekurhuleni (GE)
Standard
60
0.83
5
5
4.0
1200.0
1200.0
Analysis
1
Ekurhuleni Springs Open 4 March 2023 (E)
2023/03/04
2023/03/04
Ekurhuleni (GE)
Standard
62
0.84
5
4
2.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
44
26
1
17
26.5
60.2
86.9
1286.4
1373.3
White
22
13
0
9
13.0
59.1
77.3
1286.4
1363.6
Black
22
13
1
8
13.5
61.4
96.6
1286.4
1383.0
Standard
All
34
20
1
13
20.5
60.3
87.5
1297.9
1385.4
White
17
10
0
7
10.0
58.8
75.0
1303.4
1378.4
Black
17
10
1
6
10.5
61.8
100.0
1292.4
1392.4
Rapid
All
10
6
0
4
6.0
60.0
85.0
1247.2
1332.2
White
5
3
0
2
3.0
60.0
85.0
1228.4
1313.4
Black
5
3
0
2
3.0
60.0
85.0
1266.0
1351.0
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
82
54
1
27
54.5
66.5
139.9
1257.2
1397.2
White
42
27
0
15
27.0
64.3
121.4
1259.3
1380.8
Black
40
27
1
12
27.5
68.8
159.4
1255.0
1414.4
Standard
All
57
37
1
19
37.5
65.8
134.2
1268.9
1403.1
White
29
18
0
11
18.0
62.1
102.6
1272.6
1375.2
Black
28
19
1
8
19.5
69.6
167.0
1265.0
1432.0
Rapid
All
25
17
0
8
17.0
68.0
153.0
1230.7
1383.7
White
13
9
0
4
9.0
69.2
163.5
1229.8
1393.2
Black
12
8
0
4
8.0
66.7
141.7
1231.7
1373.3
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
1150145631
Stelloh, S (Sebastian)
4
0.0
0
0
4
0.0
1420.3
-425.0
995.3
View list
2
1150151763
Goncalves, E (Emilio)
3
2.0
2
0
1
66.7
1332.0
141.7
1473.7
View list
3
1150142001
Farkas, G (Gadi)
2
2.0
2
0
0
100.0
1402.9
425.0
1827.9
View list
4
1140153033
Khumalo, M (Musawenko)
2
2.0
2
0
0
100.0
1226.0
425.0
1651.0
View list
5
2150151771
Pather, T (Tamishka)
2
2.0
2
0
0
100.0
1443.3
425.0
1868.3
View list
6
1140156649
David, B (Benjamin)
2
1.0
1
0
1
50.0
1344.2
0.0
1344.2
View list
7
1150134901
Pillay, Y (Yishai)
2
1.0
1
0
1
50.0
1404.3
0.0
1404.3
View list
8
1150147324
Robinson, Z (Zachariah)
2
1.0
1
0
1
50.0
1338.5
0.0
1338.5
View list
9
1160157331
Steyn, K (Kian)
2
1.0
1
0
1
50.0
1439.8
0.0
1439.8
View list
10
1140143723
Collins, J (Jaytem)
1
1.0
1
0
0
100.0
1427.7
425.0
1852.7
View list
11
1160301329
Botha, L (Luan)
1
1.0
1
0
0
100.0
1359.8
425.0
1784.8
View list
12
2140149175
Boshoff, M (Milah)
1
1.0
1
0
0
100.0
1378.1
425.0
1803.1
View list
13
1140301373
Bisset, E (Erin)
1
1.0
1
0
0
100.0
1417.9
425.0
1842.9
View list
14
1140156646
Arthur, Z (Zachary)
1
1.0
1
0
0
100.0
1436.3
425.0
1861.3
View list
15
1140157236
Anderson, I (Isabella)
1
1.0
1
0
0
100.0
1252.1
425.0
1677.1
View list
16
2140139659
Du Toit, M (Monika)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
17
1130157238
Fick, C (Christian)
1
1.0
1
0
0
100.0
1252.1
425.0
1677.1
View list
18
1160155757
Hlabangwane, N (Ntwanano)
1
1.0
1
0
0
100.0
1417.9
425.0
1842.9
View list
19
1160158241
Haiden, M (Matthew)
1
1.0
1
0
0
100.0
1327.3
425.0
1752.3
View list
20
1150146508
Diesel, R (Ruben Daniel)
1
1.0
1
0
0
100.0
1252.1
425.0
1677.1
View list