PLAYER PAGE

Ontlametse Bokamoso Motsamai

1140161298
Johannesburg Metro (GJM)
Personal
Main rating
Rating 1670.6
K-factor 28
Floor 1170.6
Highest 1670.6 (2026-06-01)
Min/Max +/- allowed 85
Rating Change
()
Games 9
Score 2
We 5.34
SWe -2.77
Temp +/- -77.6
Penalties 0
Weight perform 1489.8
Final +/- -77.6
New Rating
()
Rating 1593
K-factor 28
Floor 1170.6
Highest 1670.6 (2026-06-01)
Min/Max +/- allowed 84.8
Standard rating
Rating 1670.6
K-factor 28
Floor 1170.6
Highest 1670.6 (2026-06-01)
Min/Max +/- allowed 84.8
Rating Change
()
Games 9
Score 2
We 5.28
SWe -3.28
Temp +/- -91.8
Penalties 0
Weight perform 1489.8
Final +/- -84.8
New Rating
()
Rating 1585.8
K-factor 28
Floor 1170.6
Highest 1670.6 (2026-06-01)
Min/Max +/- allowed 84.8
Rapid rating
Rating 1362
K-factor 36
Floor 862
Highest 1362 (2025-11-01)
Min/Max +/- allowed 131.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1362
K-factor 36
Floor 862
Highest 1362 (2025-11-01)
Min/Max +/- allowed 131.6
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
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 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 2026 West Rand Open 2.0 (Open) Standard 2026-06-06 2026-06-06 West Rand (GWR) 5 1670.6 5 1 1203.7 -64.3 Details
2 JMC Helpmekaar 2026 (A) Standard 2026-05-31 2026-05-31 Johannesburg Metro (GJM) 5 1670.6 4 1 1549.4 -13.4 Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Fifth Knight Riders Juniors Open Chess Tournament 2026 (C) Standard 2026-05-02 2026-05-02 Johannesburg Metro (GJM) 5 1632.9 5 5 1766.5 20.6 Details
2 3rd KHELO INDIA - LCA Chess Tournament 2026 (C) Standard 2026-04-19 2026-04-19 Johannesburg Metro (GJM) 5 1608.2 5 4 1697.8 11.8 Details
3 South African Junior Closed Chess Championship 2026 (U12 Open) Classical 2026-03-28 2026-04-02 Bojanala Platina (NBR) 9 1608.2 9 4.5 1588.2 -4.7 Details
4 3rd Knight Riders Juniors Open Chess Tournament 2026 (D+E) Standard 2026-03-08 2026-03-08 Johannesburg Metro (GJM) 5 1594.1 5 4 1605.2 3.5 Details
5 West Rand Juniors 2026 (U14) Standard 2026-03-07 2026-03-07 West Rand (GWR) 5 1594.1 5 5 1808.8 30.8 Details
6 2026 AHS Chess Tournament (A) Standard 2026-02-28 2026-02-28 Tshwane (GTP) 5 1594.1 5 1 1440.7 -20.1 Details
7 MCA Welcome JHB 2026 (Expert) Standard 2026-02-07 2026-02-07 Johannesburg Metro (GJM) 5 1687.6 5 0 1397.4 -27.7 Details
8 2025 Mzansi Individual Championships (U12 Open) Classical 2025-12-17 2025-12-20 Nelson Mandela Bay (ENM) 6 1494.7 6 5 1797.1 42.6 Details
9 2025 Mzansi Inter Provincial Team Championships (U12 Combined) Standard 2025-12-15 2025-12-17 Nelson Mandela Bay (ENM) 6 1494.7 6 4 1729.3 26.1 Details
10 Gauteng Inter-Region at Emerald Resort 2025 (U12 Championship) Standard 2025-12-06 2025-12-07 Sedibeng (GSV) 5 1494.7 5 5 1835.5 38.5 Details
11 SACSSA Nationals 2025 (U11 Boys) Rapid 2025-10-18 2025-10-18 Ekurhuleni (GE) 6 1538 6 4.5 1461.3 -6.2 Details
12 2025 Gauteng Schools Provincial Individual Chess Championship (U11 Boys) Standard 2025-09-27 2025-09-27 Tshwane (GTP) 5 1538 5 4 1646.9 11.3 Details
13 Fourth Knight Riders Juniors Open Chess Tournament 2025 (B) Standard 2025-08-31 2025-08-31 Johannesburg Metro (GJM) 5 1450 5 4 1530.2 8.6 Details
14 G7 Regional Chess Tournament 2025 (U11) Rapid 2025-09-13 2025-09-13 Johannesburg Metro (GJM) 5 1450 4 4 1726.5 14.8 Details
15 JMC Closed 2025 (U12) Standard 2025-08-09 2025-08-10 Johannesburg Metro (GJM) 5 1449 5 3 1447.4 -0.9 Details
16 JMC - Trinity Randpark Ridge 2025 (U12) Standard 2025-07-26 2025-07-26 Johannesburg Metro (GJM) 5 1433.5 5 4 1661.4 21.6 Details
17 MCA Winter Chill Classic 2025 (Intermediate) Standard 2025-07-19 2025-07-19 Johannesburg Metro (GJM) 5 1433.5 5 2.5 1387.4 -5.1 Details
18 South African Open 2025 (U12 Open) Classical 2025-07-03 2025-07-05 Johannesburg Metro (GJM) 5 1433.5 5 2 1301.5 -14.6 Details
19 JMC Helpmekaar 2025 (C) Standard 2025-06-01 2025-06-01 Johannesburg Metro (GJM) 5 1438.2 5 3 1399.5 -3 Details
20 Knight Riders Juniors Open Chess Tournament 2025 (C) Standard 2025-05-25 2025-05-25 Johannesburg Metro (GJM) 5 1440 5 3 1342.2 -8.6 Details
21 Moja Chess Extravaganza 2025 (U12) Classical 2025-04-26 2025-04-28 Johannesburg Metro (GJM) 5 1440 5 3 1510.1 9.2 Details
22 2025 Silver Lakes Chess Club Open Chess Tournament (U12) Standard 2025-05-03 2025-05-03 Tshwane (GTP) 5 1440 5 3 1415.9 -1.5 Details
23 FIDE in The West 2025 (U12) Standard 2025-04-12 2025-04-12 West Rand (GWR) 5 1383.9 5 4 1438.2 4.8 Details
24 South African Junior Closed Chess Championships 2025 (U12 Open) Classical 2025-03-31 2025-04-05 Cape Winelands (WCW) 9 1383.9 9 4.5 1525.6 28.8 Details
25 MCA Summer March 2025 (Intermediate) Standard 2025-03-08 2025-03-08 Johannesburg Metro (GJM) 5 1350.4 5 3 1401.7 4.3 Details
26 JMC Crawford Ruimsig 2025 (U12) Standard 2025-03-01 2025-03-01 Johannesburg Metro (GJM) 5 1350.4 5 4 1526.3 16.6 Details
27 2025 West Rand Open (Rooks) Standard 2025-02-08 2025-02-08 West Rand (GWR) 5 1347.2 5 3 1360.1 2 Details
28 Mzansi Interprovincial Youth Chess Championships 2024 (U12 Open Combined) Classical 2024-12-16 2024-12-19 Capricorn (LCP) 7 1364.6 6 2 1209.7 -21.8 Details
29 Gauteng Inter-Region at UJ 2024 (U12 Open) Standard 2024-12-07 2024-12-08 Johannesburg Metro (GJM) 5 1364.6 5 3 1457.3 10.9 Details
30 CPH Boksburg Open 2024 (C) Standard 2024-10-26 2024-10-26 Ekurhuleni (GE) 5 1355.3 5 3 1356.4 -0.3 Details
31 Gauteng Top Schools 2024 (U11 Open) Standard 2024-10-04 2024-10-04 Ekurhuleni (GE) 5 1355.3 5 3 1409.1 6.1 Details
32 Knight Riders Spring Chess Tournament 2024 (D) Standard 2024-09-28 2024-09-28 Johannesburg Metro (GJM) 5 1384.8 5 3 1358.8 -1.8 Details
33 Mzansi Spring Open 2024 (Intermediate) Standard 2024-09-07 2024-09-07 Johannesburg Metro (GJM) 5 1384.8 5 2 1231.3 -14.3 Details
34 Gauteng Schools Individuals Finals 2024 (U11 Boys) Standard 2024-08-16 2024-08-16 Ekurhuleni (GE) 5 1384.8 5 3 1367.5 -2.3 Details
35 JMC Closed 2024 (C) Standard 2024-08-09 2024-08-11 Johannesburg Metro (GJM) 5 1391.1 4 1 1121.2 -23.8 Details
36 2024 West Rand Rappies Open (U12) Standard 2024-08-03 2024-08-03 West Rand (GWR) 5 1391.1 5 4 1589.6 19.9 Details
37 2024 Midstream College Open Chess Tournament (U12) Standard 2024-07-20 2024-07-20 Tshwane (GTP) 5 1412.6 5 3.5 1505.1 8.6 Details
38 JMC Trinityhouse Randpark Ridge 2024 (C) Standard 2024-07-13 2024-07-13 Johannesburg Metro (GJM) 5 1412.6 5 1.5 1179.1 -22.1 Details
39 2024 Elise Steenkamp Open Chess Tournament (Rooks) Standard 2024-06-15 2024-06-15 Tshwane (GTP) 5 1287.4 5 3 1366.8 9.4 Details
40 FIDE in the West 2024 (U12) Standard 2024-06-08 2024-06-08 West Rand (GWR) 5 1287.4 5 4 1674.9 37 Details
41 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (D) Standard 2024-06-01 2024-06-01 Tshwane (GTP) 5 1287.4 5 2.5 1209.4 -6.8 Details
42 Chess Power House May Open 2024 (D) Standard 2024-05-25 2024-05-25 Johannesburg Metro (GJM) 5 1287.4 0 0 0 0 Details
43 2024 West Rand RHS Open (U12) Standard 2024-04-13 2024-04-13 West Rand (GWR) 5 1235.6 5 3 1431.5 19.8 Details
44 CPH St Andrew's Rapid 2024 (C) Rapid 2024-03-30 2024-03-30 Ekurhuleni (GE) 5 1247.2 5 4 1570.8 17.6 Details
45 1st Knights Open Tournament 2024 (C) Standard 2024-03-23 2024-03-23 Johannesburg Metro (GJM) 5 1247.2 4 1 1053.4 -15.1 Details
46 JNW Open - Classic - Crawford 2024 (C) Standard 2024-03-09 2024-03-09 Johannesburg Metro (GJM) 5 1247.2 5 2 1136.7 -11.5 Details
47 JMC Unika School Tournament 2024 (D) Standard 2024-03-02 2024-03-02 Johannesburg Metro (GJM) 5 1247.2 5 3 1281.6 2.7 Details
48 Chess Power House Festive Rapid 2023 (Grade 3-7) Rapid 2023-12-15 2023-12-15 Johannesburg Metro (GJM) 6 1249.9 6 2.5 1229.4 -1.4 Details
49 Mzansi Bryanston Rapid 2023 (Junior) Rapid 2023-10-07 2023-10-07 Johannesburg Metro (GJM) 5 1249.9 0 0 0 0 Details
50 2023 Gauteng Top Schools (U9 Mixed) Standard 2023-08-18 2023-08-18 West Rand (GWR) 5 1200 5 4 1490.9 27.7 Details
Game statistics ( )
Games 5
Wins 1
Draws 0
Losses 4
White 3
Black 2
White wins 0
Black wins 1
Score 1
Percent 20
Dp -255
AOR 1458.7
Performance 1203.7
Game statistics ()
Games 48
Wins 25
Draws 1
Losses 22
White 22
Black 26
White wins 11
Black wins 14
Score 25.5
Percent 53.1
Dp 26.6
AOR 1537.9
Performance 1564.4
Game statistics (History)
Games 259
Wins 152
Draws 8
Losses 99
White 128
Black 131
White wins 75
Black wins 77
Score 156
Percent 60.2
Dp 87
AOR 1372.8
Performance 1459.8
Rankings (Main)
National
Overall 673
Gender 634
Age group 34
Gender/Age 32
Provincial
Overall 231
Gender 217
Age group 11
Gender/Age 10
Regional
Overall 92
Gender 84
Age group 7
Gender/Age 7
Rankings (Standard)
National
Overall 630
Gender 591
Age group 32
Gender/Age 29
Provincial
Overall 224
Gender 210
Age group 10
Gender/Age 9
Regional
Overall 84
Gender 76
Age group 7
Gender/Age 7
Rankings (Rapid)
National
Overall 1224
Gender 1050
Age group 211
Gender/Age 162
Provincial
Overall 225
Gender 197
Age group 35
Gender/Age 25
Regional
Overall 108
Gender 99
Age group 14
Gender/Age 11
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 5
Score 1
Percent 20
Aor 1458.7
Dp -255
Prat 1203.7
Performance ()
Games 48
Score 25.5
Percent 53.1
Aor 1537.9
Dp 26.6
Prat 1564.4
Performance (12 months)
Games 105
Score 67.5
Percent 64.3
Aor 1459.3
Dp 121.4
Prat 1580.7
Performance (History)
Games 259
Score 156
Percent 60.2
Aor 1372.8
Dp 87
Prat 1459.8
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Maduna, A (Asanda) 4 3 1 Knight Riders Spring Chess Tournament 2024 (D) Fifth Knight Riders Juniors Open Chess Tournament 2026 (C) Details
Overall 2 Mathibe, K (Koketso) 2 1 1 Knight Riders Spring Chess Tournament 2024 (D) 3rd Knight Riders Juniors Open Chess Tournament 2026 (D+E) Details
Overall 3 Van Der Westhuizen, L (Lihan) 2 0 2 2024 West Rand RHS Open (U12) 2026 AHS Chess Tournament (A) Details
Overall 4 Van Der Merwe, ZC (Zander Christiaan) 2 2 0 2024 Midstream College Open Chess Tournament (U12) Gauteng Top Schools 2024 (U11 Open) Details
Overall 5 Subroyen, J (Jeevesh) 2 1 1 JMC Trinityhouse Randpark Ridge 2024 (C) MCA Winter Chill Classic 2025 (Intermediate) Details
Standard 1 Maduna, A (Asanda) 4 3 1 Knight Riders Spring Chess Tournament 2024 (D) Fifth Knight Riders Juniors Open Chess Tournament 2026 (C) Details
Standard 2 Naidoo, K (Kehan) 2 1 1 JMC Helpmekaar 2025 (C) JMC - Trinity Randpark Ridge 2025 (U12) Details
Standard 3 Steyn, K (Kian) 2 2 0 Knight Riders Spring Chess Tournament 2024 (D) Knight Riders Juniors Open Chess Tournament 2025 (C) Details
Standard 4 Nkhoma, D (Daniel) 2 1 1 2024 West Rand Rappies Open (U12) Gauteng Schools Individuals Finals 2024 (U11 Boys) Details
Standard 5 Khumalo, ME (Musawenkosi Ethan) 2 0 2 Mzansi Interprovincial Youth Chess Championships 2024 (U12 Open Combined) 2025 Gauteng Schools Provincial Individual Chess Championship (U11 Boys) Details
Rapid 1 Gumede, M (Mthobisi) 2 1 1 G7 Regional Chess Tournament 2025 (U11) SACSSA Nationals 2025 (U11 Boys) Details