Surname or Chess SA id..
Chess SA Region AOC Mzansi 2026

PLAYER PAGE

Yufei Ji

1180319795
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1257.1
K-factor 36
Floor 774
Highest 1274 (2026-02-28)
Min/Max +/- allowed 149
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1229.8
Final +/- 0
New Rating
()
Rating 1257.1
K-factor 36
Floor 774
Highest 1274 (2026-02-28)
Min/Max +/- allowed 149.2
Standard rating
Rating 1254.4
K-factor 36
Floor 771.1
Highest 1271.1 (2026-02-28)
Min/Max +/- allowed 149.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1229.8
Final +/- 0
New Rating
()
Rating 1254.4
K-factor 36
Floor 771.1
Highest 1271.1 (2026-02-28)
Min/Max +/- allowed 149.8
Rapid rating
Rating 1239.2
K-factor 36
Floor 739.2
Highest 1239.2 (2025-11-30)
Min/Max +/- allowed 156.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1239.2
K-factor 36
Floor 739.2
Highest 1239.2 (2025-11-30)
Min/Max +/- allowed 156.8
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2025-06-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2025-06-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 JMC Trinityhouse Randpark Ridge 2026 (U10) Standard 2026-06-27 2026-06-27 Johannesburg Metro (GJM) 5 1267.8 5 2 1198.7 -10.7 Details
2 Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Standard 2026-05-10 2026-05-10 Johannesburg Metro (GJM) 5 1260.2 5 3.5 1410.3 27.7 Details
3 Fifth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Standard 2026-05-02 2026-05-02 Johannesburg Metro (GJM) 5 1260.2 5 1 1130.2 -21.8 Details
4 3rd KHELO INDIA - LCA Chess Tournament 2026 (D) Standard 2026-04-19 2026-04-19 Johannesburg Metro (GJM) 5 1274 5 2 1202.8 -13.8 Details
5 2nd Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Standard 2026-02-21 2026-02-21 Johannesburg Metro (GJM) 5 1233 5 3 1390.4 15.9 Details
6 2026 JMC Kick off Tournament (U10) Standard 2026-02-01 2026-02-01 Johannesburg Metro (GJM) 5 1233 5 2 1296.7 3.9 Details
7 MCA Year End Rapid 2025 (U8) Rapid 2025-11-01 2025-11-01 Johannesburg Metro (GJM) 7 1199.9 6 4 1395.6 16.6 Details
8 CPH May 2025 (E) Standard 2025-05-03 2025-05-03 Johannesburg Metro (GJM) 5 1200 5 2 1133.7 -5.8 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 30
Wins 13
Draws 1
Losses 16
White 14
Black 16
White wins 6
Black wins 7
Score 13.5
Percent 45
Dp -42.5
AOR 1314
Performance 1271.5
Game statistics (History)
Games 41
Wins 19
Draws 1
Losses 21
White 19
Black 22
White wins 8
Black wins 11
Score 19.5
Percent 47.6
Dp -20.7
AOR 1293.6
Performance 1272.9
Rankings (Main)
National
Overall 8618
Gender 6948
Age group 426
Gender/Age 314
Provincial
Overall 2991
Gender 2395
Age group 144
Gender/Age 104
Regional
Overall 735
Gender 614
Age group 43
Gender/Age 30
Rankings (Standard)
National
Overall 7525
Gender 5970
Age group 404
Gender/Age 295
Provincial
Overall 2728
Gender 2155
Age group 135
Gender/Age 101
Regional
Overall 635
Gender 521
Age group 43
Gender/Age 30
Rankings (Rapid)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 30
Score 13.5
Percent 45
Aor 1314
Dp -42.5
Prat 1271.5
Performance (12 months)
Games 36
Score 17.5
Percent 48.6
Aor 1304
Dp -11.8
Prat 1292.2
Performance (History)
Games 41
Score 19.5
Percent 47.6
Aor 1293.6
Dp -20.7
Prat 1272.9
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Maduna, A (Asonele) 2 1 1 2nd Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Details
Overall 2 Malemane, A (Atlehang Faith) 2 1 1 2026 JMC Kick off Tournament (U10) 2nd Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Details
Overall 3 Wong, B (Benjamin) 2 2 0 Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) JMC Trinityhouse Randpark Ridge 2026 (U10) Details
Overall 4 Hsu, E (Emily) 2 2 0 CPH May 2025 (E) 2026 JMC Kick off Tournament (U10) Details
Overall 5 Mkhasibe, N (Njabulo) 2 2 0 Fifth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Details
Standard 1 Mkhasibe, N (Njabulo) 2 2 0 Fifth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Details
Standard 2 Malemane, A (Atlehang Faith) 2 1 1 2026 JMC Kick off Tournament (U10) 2nd Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Details
Standard 3 Hsu, E (Emily) 2 2 0 CPH May 2025 (E) 2026 JMC Kick off Tournament (U10) Details
Standard 4 Wong, B (Benjamin) 2 2 0 Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) JMC Trinityhouse Randpark Ridge 2026 (U10) Details
Standard 5 Maduna, A (Asonele) 2 1 1 2nd Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Sixth Knight Riders Juniors Open Chess Tournament 2026 (U8+U10) Details