PLAYER PAGE
Matthew Mostert
1170306196Tshwane (GTP)Personal
Main rating
| Rating | 1451 |
| K-factor | 32 |
| Floor | 951 |
| Highest | 1451 (2026-09-01) |
| Min/Max +/- allowed | 116 |
| Rating Change () | |
| Games | 13 |
| Score | 6.5 |
| We | 7.52 |
| SWe | -1.86 |
| Temp +/- | -59.4 |
| Penalties | 0 |
| Weight perform | 1335.4 |
| Final +/- | -59.4 |
| New Rating () | |
| Rating | 1391.5 |
| K-factor | 32 |
| Floor | 951 |
| Highest | 1451 (2026-09-01) |
| Min/Max +/- allowed | 116 |
Standard rating
| Rating | 1455.4 |
| K-factor | 32 |
| Floor | 955.4 |
| Highest | 1455.4 (2026-09-01) |
| Min/Max +/- allowed | 115.2 |
| Rating Change () | |
| Games | 8 |
| Score | 2.5 |
| We | 3.99 |
| SWe | -1.49 |
| Temp +/- | -47.8 |
| Penalties | 0 |
| Weight perform | 1345.5 |
| Final +/- | -47.8 |
| New Rating () | |
| Rating | 1407.6 |
| K-factor | 32 |
| Floor | 955.4 |
| Highest | 1455.4 (2026-09-01) |
| Min/Max +/- allowed | 115.2 |
Rapid rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-06-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 2.86 |
| SWe | -0.43 |
| Temp +/- | -15.4 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | -15.4 |
| New Rating () | |
| Rating | 1184.6 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-06-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-06-01) |
| 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 (2024-06-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 Gauteng Northl Chess Tournament (C) | Standard | 2026-10-10 | 2026-10-11 | Tshwane (GTP) | 5 | 1451 | 4 | 0 | 1032 | -59.2 | Details |
| 2 | Gauteng Top Schools Teams 2026 (U9) | Rapid | 2026-08-28 | 2026-08-28 | Ekurhuleni (GE) | 5 | 1451 | 5 | 4 | 1473.2 | 2.6 | Details |
| 3 | 2026 Tshwane Chess Club Clash Open Team Tournament (U10) | Standard | 2026-09-24 | 2026-09-24 | Tshwane (GTP) | 5 | 1451 | 4 | 2.5 | 1567.3 | 14.5 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 Alekhine Open Chess Tournament (E) | Standard | 2026-08-29 | 2026-08-29 | Tshwane (GTP) | 5 | 1451 | 5 | 4.5 | 1538 | 34.7 | Details |
| 2 | 2026 Gauteng North School D3 Team League Finals (U9) | Standard | 2026-08-22 | 2026-08-22 | Tshwane (GTP) | 5 | 1451 | 5 | 4 | 1425.3 | 18.1 | Details |
| 3 | 2026 Etienne Lewis (U10) | Standard | 2026-08-08 | 2026-08-10 | Tshwane (GTP) | 7 | 1451 | 7 | 5 | 1538.7 | 47.8 | Details |
| 4 | 2026 Anton Van Wouw Open (U10) | Standard | 2026-06-20 | 2026-06-20 | Tshwane (GTP) | 5 | 1407.7 | 5 | 3 | 1264 | -9.7 | Details |
| 5 | Elise Steenkamp 2026 (Knight) | Standard | 2026-06-13 | 2026-06-14 | Tshwane (GTP) | 5 | 1407.7 | 5 | 2 | 1223.5 | -33.6 | Details |
| 6 | 2026 Prestige College Open (U10) | Standard | 2026-06-06 | 2026-06-06 | Tshwane (GTP) | 5 | 1407.7 | 5 | 3 | 1323.6 | -14 | Details |
| 7 | 2026 D3 Tshwane North Individuals (U9) | Standard | 2026-05-09 | 2026-05-09 | Tshwane (GTP) | 5 | 1372.1 | 5 | 3.5 | 1467.2 | 15.6 | Details |
| 8 | 2026 KSNG Open Chess Tournament (U8+U10) | Standard | 2026-04-18 | 2026-04-18 | Tshwane (GTP) | 5 | 1309.7 | 5 | 3 | 1376 | 12.9 | Details |
| 9 | 2026 D3 Tshwane North School Cluster 4&5 Individuals (U9) | Standard | 2026-04-11 | 2026-04-11 | Tshwane (GTP) | 5 | 1309.7 | 5 | 4 | 1472.9 | 27.6 | Details |
| 10 | 2026 Silver Lakes Open Chess Tournament | Standard | 2026-03-07 | 2026-03-07 | Tshwane (GTP) | 5 | 1296.1 | 5 | 3 | 1366.3 | 13.6 | Details |
| 11 | MCA Tshwane Welcome 2026 (U10) | Standard | 2026-01-24 | 2026-01-24 | Tshwane (GTP) | 5 | 1307.9 | 4 | 1 | 1103.6 | -15.8 | Details |
| 12 | 2026 Tshwane Chess Registration Tournament (U10) | Standard | 2026-01-31 | 2026-01-31 | Tshwane (GTP) | 5 | 1307.9 | 5 | 3 | 1409.7 | 4.9 | Details |
| 13 | 2025 Mzansi Individual Championships (U10 Open) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1269.9 | 6 | 3 | 1421.5 | 21.2 | Details |
| 14 | Gauteng Inter-Region at Emerald Resort 2025 (U10 Candidates) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1269.9 | 5 | 2 | 1277.7 | 0 | Details |
| 15 | 2025 Centurion Chess Open Tournament (U10) | Standard | 2025-09-27 | 2025-09-27 | Tshwane (GTP) | 5 | 1266.9 | 5 | 2 | 1277.8 | 1.7 | Details |
| 16 | 2025 Tshwane North District CLOSED Team Championships (D3) (U11) | Standard | 2025-08-16 | 2025-08-16 | Tshwane (GTP) | 5 | 1310.7 | 4 | 2 | 1190.8 | -9.3 | Details |
| 17 | 2025 Etienne Lewis Closed Chess Tournament (U10) | Standard | 2025-08-08 | 2025-08-10 | Tshwane (GTP) | 7 | 1310.7 | 7 | 3 | 1217.8 | -15 | Details |
| 18 | 2025 Menlo Open (U10) | Standard | 2025-07-26 | 2025-07-26 | Tshwane (GTP) | 5 | 1289.8 | 5 | 3 | 1447.1 | 13.3 | Details |
| 19 | South African Open 2025 (U10 Open) | Classical | 2025-07-03 | 2025-07-05 | Johannesburg Metro (GJM) | 5 | 1289.8 | 5 | 2 | 1265.9 | -2 | Details |
| 20 | 2025 Elise Steenkamp Open Chess Tournament (Knight) | Standard | 2025-06-14 | 2025-06-15 | Tshwane (GTP) | 5 | 1309.6 | 5 | 2 | 1202.7 | -11.1 | Details |
| 21 | 2025 Tshwane North School District CLOSED Individual Chess Championship (U9 Open) | Standard | 2025-05-24 | 2025-05-24 | Tshwane (GTP) | 5 | 1278.4 | 5 | 3 | 1323.5 | 3.8 | Details |
| 22 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U9 Open) | Standard | 2025-05-10 | 2025-05-10 | Tshwane (GTP) | 5 | 1278.4 | 5 | 3.5 | 1326.6 | 5.5 | Details |
| 23 | South African Junior Closed Chess Championships 2025 (U8 Open) | Classical | 2025-03-31 | 2025-04-05 | Cape Winelands (WCW) | 9 | 1215.6 | 9 | 4 | 1386.6 | 34.8 | Details |
| 24 | Lubowski Open 2025 (E+F) | Standard | 2025-03-21 | 2025-03-21 | Tshwane (GTP) | 5 | 1179.6 | 5 | 3 | 1320.9 | 14.8 | Details |
| 25 | AHS Open Chess Tournament 2025 (U10) | Standard | 2025-03-01 | 2025-03-01 | Tshwane (GTP) | 5 | 1179.6 | 5 | 2 | 1160 | -2.7 | Details |
| 26 | 2025 Blou Bul Open Chess Tournament (E) | Standard | 2025-02-08 | 2025-02-08 | Tshwane (GTP) | 5 | 1171.9 | 5 | 2.5 | 1153.7 | -1 | Details |
| 27 | 2025 Piet Robbertse Fide Rated Open Chess Tournament (E) | Standard | 2025-02-01 | 2025-02-01 | Tshwane (GTP) | 5 | 1171.9 | 5 | 2.5 | 1213.3 | 5.3 | Details |
| 28 | 2025 Tshwane Chess OPEN Registration Tournament (U10) | Standard | 2025-01-25 | 2025-01-25 | Tshwane (GTP) | 5 | 1095.5 | 5 | 3 | 1316.3 | 22.1 | Details |
| 29 | Mzansi Interprovincial Youth Chess Championships 2024 (U8 Open Combined) | Classical | 2024-12-16 | 2024-12-19 | Capricorn (LCP) | 7 | 1166.8 | 7 | 3 | 1190.4 | 4.6 | Details |
| 30 | Gauteng Inter-Region at UJ 2024 (U8 Open) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1166.8 | 5 | 0 | 795.4 | -40.1 | Details |
| 31 | 2024 Etienne Lewis (U8) | Standard | 2024-08-31 | 2024-08-31 | Tshwane (GTP) | 5 | 1186.4 | 5 | 2 | 1102.5 | -9.8 | Details |
| 32 | 2024 Alekhine Open Chess Tournament (U8) | Standard | 2024-08-09 | 2024-08-09 | Tshwane (GTP) | 5 | 1153.7 | 5 | 3 | 1294.5 | 16.3 | Details |
| 33 | 2024 Prestige College Open Chess Tournament (F) | Standard | 2024-07-06 | 2024-07-06 | Tshwane (GTP) | 5 | 1124.8 | 5 | 3 | 1278.6 | 14.4 | Details |
| 34 | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | Standard | 2024-06-15 | 2024-06-15 | Tshwane (GTP) | 5 | 1200 | 4 | 0 | 776.7 | -37.5 | Details |
Game statistics ( )
| Games | 4 |
| Wins | 0 |
| Draws | 0 |
| Losses | 4 |
| White | 2 |
| Black | 2 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | -425 |
| AOR | 1457 |
| Performance | 1032 |
Game statistics ()
| Games | 74 |
| Wins | 44 |
| Draws | 3 |
| Losses | 27 |
| White | 38 |
| Black | 36 |
| White wins | 22 |
| Black wins | 22 |
| Score | 45.5 |
| Percent | 61.5 |
| Dp | 97.6 |
| AOR | 1284.5 |
| Performance | 1382.2 |
Game statistics (History)
| Games | 191 |
| Wins | 95 |
| Draws | 8 |
| Losses | 88 |
| White | 96 |
| Black | 95 |
| White wins | 51 |
| Black wins | 44 |
| Score | 99 |
| Percent | 51.8 |
| Dp | 15.6 |
| AOR | 1276.6 |
| Performance | 1292.2 |
Rankings (Main)
| National | |
| Overall | 2660 |
| Gender | 2285 |
| Age group | 102 |
| Gender/Age | 84 |
| Provincial | |
| Overall | 912 |
| Gender | 782 |
| Age group | 39 |
| Gender/Age | 32 |
| Regional | |
| Overall | 329 |
| Gender | 274 |
| Age group | 18 |
| Gender/Age | 15 |
Rankings (Standard)
| National | |
| Overall | 2296 |
| Gender | 1954 |
| Age group | 94 |
| Gender/Age | 77 |
| Provincial | |
| Overall | 825 |
| Gender | 704 |
| Age group | 38 |
| Gender/Age | 32 |
| Regional | |
| Overall | 302 |
| Gender | 252 |
| Age group | 17 |
| Gender/Age | 15 |
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 | 4 |
| Score | 0 |
| Percent | 0 |
| Aor | 1457 |
| Dp | -425 |
| Prat | 1032 |
Performance ()
| Games | 74 |
| Score | 45.5 |
| Percent | 61.5 |
| Aor | 1284.5 |
| Dp | 97.6 |
| Prat | 1382.2 |
Performance (12 months)
| Games | 85 |
| Score | 50.5 |
| Percent | 59.4 |
| Aor | 1298.8 |
| Dp | 80 |
| Prat | 1378.8 |
Performance (History)
| Games | 191 |
| Score | 99 |
| Percent | 51.8 |
| Aor | 1276.6 |
| Dp | 15.6 |
| Prat | 1292.2 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Sidindi, M (Macjames) | 6 | 2 | 4 | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | 2026 Etienne Lewis (U10) | Details |
| Overall | 2 | Roelofse, G (Gizelle) | 5 | 1 | 4 | AHS Open Chess Tournament 2025 (U10) | 2026 Alekhine Open Chess Tournament (E) | Details |
| Overall | 3 | Ackerman, J (Janlu) | 4 | 3 | 1 | Lubowski Open 2025 (E+F) | 2026 D3 Tshwane North Individuals (U9) | Details |
| Overall | 4 | Bosch Dippenaar, B (Benjamin) | 4 | 4 | 0 | 2025 Piet Robbertse Fide Rated Open Chess Tournament (E) | 2025 Centurion Chess Open Tournament (U10) | Details |
| Overall | 5 | Radebe, M (Mpilo) | 3 | 1 | 2 | 2024 Prestige College Open Chess Tournament (F) | 2026 D3 Tshwane North Individuals (U9) | Details |
| Standard | 1 | Sidindi, M (Macjames) | 6 | 2 | 4 | 2024 Elise Steenkamp Open Chess Tournament (Bishops) | 2026 Etienne Lewis (U10) | Details |
| Standard | 2 | Roelofse, G (Gizelle) | 5 | 1 | 4 | AHS Open Chess Tournament 2025 (U10) | 2026 Alekhine Open Chess Tournament (E) | Details |
| Standard | 3 | Ackerman, J (Janlu) | 4 | 3 | 1 | Lubowski Open 2025 (E+F) | 2026 D3 Tshwane North Individuals (U9) | Details |
| Standard | 4 | Bosch Dippenaar, B (Benjamin) | 4 | 4 | 0 | 2025 Piet Robbertse Fide Rated Open Chess Tournament (E) | 2025 Centurion Chess Open Tournament (U10) | Details |
| Standard | 5 | Conradie, M (Marcus) | 3 | 1 | 2 | 2024 Etienne Lewis (U8) | 2026 Etienne Lewis (U10) | Details |