PLAYER PAGE
Matthew Viriah
1160190995iLembe (KIK)Personal
Main rating
| Rating | 1676.8 |
| K-factor | 28 |
| Floor | 1176.8 |
| Highest | 1676.8 (2026-08-01) |
| Min/Max +/- allowed | 84 |
| Rating Change () | |
| Games | 12 |
| Score | 11.5 |
| We | 9.02 |
| SWe | 1.77 |
| Temp +/- | 49.4 |
| Penalties | 0 |
| Weight perform | 1748.2 |
| Final +/- | +71.4 |
| New Rating () | |
| Rating | 1748.2 |
| K-factor | 28 |
| Floor | 1248.2 |
| Highest | 1748.2 (2026-10-01) |
| Min/Max +/- allowed | 75.9 |
Standard rating
| Rating | 1687.3 |
| K-factor | 28 |
| Floor | 1187.3 |
| Highest | 1687.3 (2026-08-01) |
| Min/Max +/- allowed | 82.8 |
| Rating Change () | |
| Games | 5 |
| Score | 5 |
| We | 3.74 |
| SWe | 1.26 |
| Temp +/- | 35.3 |
| Penalties | 0 |
| Weight perform | 1748.1 |
| Final +/- | +60.7 |
| New Rating () | |
| Rating | 1748.1 |
| K-factor | 28 |
| Floor | 1248.1 |
| Highest | 1748.1 (2026-10-01) |
| Min/Max +/- allowed | 75.9 |
Rapid rating
| Rating | 1436.2 |
| K-factor | 32 |
| Floor | 994.7 |
| Highest | 1554.8 (2025-11-01) |
| Min/Max +/- allowed | 100 |
| Rating Change () | |
| Games | 7 |
| Score | 6.5 |
| We | 4.07 |
| SWe | 2.43 |
| Temp +/- | 77.9 |
| Penalties | 0 |
| Weight perform | 1480.6 |
| Final +/- | +77.9 |
| New Rating () | |
| Rating | 1514.1 |
| K-factor | 32 |
| Floor | 994.7 |
| Highest | 1554.8 (2025-11-01) |
| Min/Max +/- allowed | 100 |
Blitz rating
| Rating | 1206.5 |
| K-factor | 36 |
| Floor | 715 |
| Highest | 1215 (2025-03-01) |
| Min/Max +/- allowed | 162.3 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1206.5 |
| K-factor | 36 |
| Floor | 715 |
| Highest | 1215 (2025-03-01) |
| Min/Max +/- allowed | 162.3 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 KwaZulu Natal Closed II (U12 Boys) | Standard | 2026-09-26 | 2026-09-27 | Ethekwini (KED) | 5 | 1676.8 | 5 | 5 | 1899.2 | 32.1 | Details |
| 2 | 2026 Durban and District Senior Primary Open (U12 Boys) | Rapid | 2026-09-12 | 2026-09-12 | Ethekwini (KED) | 7 | 1676.8 | 7 | 6.5 | 1804.9 | 17.3 | Details |
| 3 | 2026 Westville Senior Primary Chess (Senior Primary) | Standard | 2026-09-05 | 2026-09-05 | Ethekwini (KED) | 5 | 1676.8 | 0 | 0 | 500 | 0 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 KwaZulu Natal Closed Championship (U12) | Standard | 2026-06-27 | 2026-06-28 | Ethekwini (KED) | 5 | 1673.3 | 5 | 4 | 1681.6 | 3.5 | Details |
| 2 | 2026 Africa Youth Chess Championship | Classical | 2026-05-15 | 2026-05-21 | Uganda (UGA) | 9 | 1579.4 | 9 | 6.5 | 1776.6 | 65.4 | Details |
| 3 | 2026 KwaZulu Natal Open (D) | Standard | 2026-05-01 | 2026-05-03 | Ethekwini (KED) | 7 | 1579.4 | 7 | 7 | 1859.2 | 70.8 | Details |
| 4 | 2026 Westville Chess Club Rapid Rated Tournament (A) | Rapid | 2026-04-11 | 2026-04-11 | Ethekwini (KED) | 5 | 1511.1 | 4 | 0.5 | 1253.3 | -21.1 | Details |
| 5 | South African Junior Closed Chess Championship 2026 (U10 Open) | Classical | 2026-03-28 | 2026-04-02 | Bojanala Platina (NBR) | 9 | 1511.1 | 9 | 6 | 1780.6 | 89.5 | Details |
| 6 | 2026 Umhlanga CC (Open) | Standard | 2026-03-21 | 2026-03-22 | Ethekwini (KED) | 6 | 1599.6 | 6 | 1.5 | 1124.5 | -88.5 | Details |
| 7 | 2025 Mzansi Individual Championships (U10 Open) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1532.6 | 6 | 4.5 | 1659.7 | 18 | Details |
| 8 | 2025 Mzansi Inter Provincial Team Championships (U10 Combined) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1532.6 | 6 | 5.5 | 1732.3 | 23.6 | Details |
| 9 | North Coast Chess Club Term 4 Swiss 2025 (Open) | Standard | 2025-10-06 | 2025-11-11 | iLembe (KIK) | 6 | 1588.9 | 6 | 2 | 1341.8 | -27.4 | Details |
| 10 | Crawford North Coast Chess Champs 2025 (Junior Primary) | Rapid | 2025-10-18 | 2025-10-18 | iLembe (KIK) | 5 | 1579.2 | 5 | 5 | 1685.7 | 6.5 | Details |
| 11 | 2025 Umhlanga Heritage Open (Junior Primary) | Standard | 2025-09-27 | 2025-09-27 | Ethekwini (KED) | 5 | 1560.1 | 5 | 5 | 1761.7 | 20.6 | Details |
| 12 | 2025 KZN Provincial Trials (U10) | Rapid | 2025-09-06 | 2025-09-06 | Ethekwini (KED) | 6 | 1560.1 | 6 | 3.5 | 1412.5 | -12.4 | Details |
| 13 | North Coast Term 3 Open 2025 | Standard | 2025-07-28 | 2025-09-01 | iLembe (KIK) | 6 | 1560.1 | 2 | 2 | 1588.4 | 0.7 | Details |
| 14 | The North Coast Open 2025 (Junior Primary) | Standard | 2025-08-09 | 2025-08-09 | iLembe (KIK) | 5 | 1488.7 | 5 | 5 | 1725 | 22.6 | Details |
| 15 | 2025 Ashton Ballito Chess Champs (Junior Primary) | Rapid | 2025-08-02 | 2025-08-02 | iLembe (KIK) | 5 | 1488.7 | 5 | 5 | 1741.7 | 16.7 | Details |
| 16 | Luthuli Walk Fun Run & Bltz Chess Tournament Open 2025 | Blitz | 2025-07-18 | 2025-07-18 | iLembe (KIK) | 5 | 1491.2 | 5 | 2.5 | 1423.3 | -1.6 | Details |
| 17 | Umhlali Chess Festival 2025 (Grade 2+3) | Rapid | 2025-06-21 | 2025-06-21 | iLembe (KIK) | 5 | 1469.5 | 5 | 5 | 1678.3 | 13 | Details |
| 18 | 2025 KZN Open (C) | Standard | 2025-05-02 | 2025-05-04 | Ethekwini (KED) | 7 | 1470.4 | 7 | 5 | 1459.6 | -0.6 | Details |
| 19 | South African Junior Closed Chess Championships 2025 (U10 Open) | Classical | 2025-03-31 | 2025-04-05 | Cape Winelands (WCW) | 9 | 1524.5 | 9 | 4 | 1364.6 | -33.8 | Details |
| 20 | Knight's Quest 2025 (U8+U10) | Standard | 2025-03-15 | 2025-03-15 | iLembe (KIK) | 5 | 1455.8 | 5 | 5 | 1707.4 | 25.4 | Details |
| 21 | Salt Rock 60/60 2025 (Boys) | Standard | 2025-03-01 | 2025-03-01 | iLembe (KIK) | 5 | 1455.8 | 4 | 2 | 1504.1 | 3.7 | Details |
| 22 | North Coast Blitz Open 2025 | Blitz | 2025-02-10 | 2025-02-10 | iLembe (KIK) | 7 | 1415.8 | 7 | 4 | 1361.8 | -1.4 | Details |
| 23 | Dr Mhlanga Chess Challenge 2025 (Junior Primary) | Standard | 2025-02-08 | 2025-02-08 | iLembe (KIK) | 5 | 1415.8 | 5 | 5 | 1691.9 | 26.4 | Details |
| 24 | Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Candidates) | Classical | 2024-12-16 | 2024-12-19 | Capricorn (LCP) | 7 | 1318.6 | 7 | 5.5 | 1545.1 | 38.2 | Details |
| 25 | Umhlali Preparatory Inter House Chess 2024 (Grade 2) | Rapid | 2024-11-27 | 2024-11-27 | iLembe (KIK) | 5 | 1318.6 | 5 | 4.5 | 1528.3 | 15.5 | Details |
| 26 | 2024 ILembe Youth Trials (U8+U10) | Standard | 2024-10-19 | 2024-10-19 | iLembe (KIK) | 5 | 1291.7 | 5 | 3.5 | 1435.7 | 14.9 | Details |
| 27 | Westville Senior Primary Chess Tournament 2024 (Junior Primary) | Rapid | 2024-09-07 | 2024-09-07 | Ethekwini (KED) | 7 | 1275.6 | 7 | 5 | 1379.8 | 9 | Details |
| 28 | Ashton International College Chess Champs 2024 (Junior Primary) | Rapid | 2024-08-17 | 2024-08-17 | Ethekwini (KED) | 5 | 1252.3 | 5 | 4 | 1463.3 | 13 | Details |
| 29 | Umhlali Prep Inter House Chess 2023 (Grade 1) | Standard | 2023-11-29 | 2023-11-29 | iLembe (KIK) | 4 | 1200 | 4 | 4 | 1571.5 | 29 | 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 | 52 |
| Wins | 34 |
| Draws | 6 |
| Losses | 12 |
| White | 28 |
| Black | 24 |
| White wins | 19 |
| Black wins | 15 |
| Score | 37 |
| Percent | 71.2 |
| Dp | 179.8 |
| AOR | 1499.6 |
| Performance | 1679.4 |
Game statistics (History)
| Games | 178 |
| Wins | 126 |
| Draws | 15 |
| Losses | 37 |
| White | 91 |
| Black | 87 |
| White wins | 68 |
| Black wins | 58 |
| Score | 133.5 |
| Percent | 75 |
| Dp | 212.5 |
| AOR | 1368.4 |
| Performance | 1580.9 |
Rankings (Main)
| National | |
| Overall | 665 |
| Gender | 622 |
| Age group | 29 |
| Gender/Age | 26 |
| Provincial | |
| Overall | 34 |
| Gender | 34 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 3 |
| Gender | 3 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Standard)
| National | |
| Overall | 582 |
| Gender | 549 |
| Age group | 25 |
| Gender/Age | 24 |
| Provincial | |
| Overall | 32 |
| Gender | 32 |
| Age group | 1 |
| Gender/Age | 1 |
| Regional | |
| Overall | 3 |
| Gender | 3 |
| Age group | 1 |
| Gender/Age | 1 |
Rankings (Rapid)
| National | |
| Overall | 728 |
| Gender | 646 |
| Age group | 80 |
| Gender/Age | 65 |
| Provincial | |
| Overall | 65 |
| Gender | 59 |
| Age group | 10 |
| Gender/Age | 8 |
| Regional | |
| Overall | 10 |
| Gender | 10 |
| Age group | 4 |
| Gender/Age | 4 |
Rankings (Blitz)
| National | |
| Overall | 506 |
| Gender | 468 |
| Age group | 27 |
| Gender/Age | 24 |
| Provincial | |
| Overall | 27 |
| Gender | 26 |
| Age group | 4 |
| Gender/Age | 4 |
| Regional | |
| Overall | 7 |
| Gender | 7 |
| Age group | 2 |
| Gender/Age | 2 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 52 |
| Score | 37 |
| Percent | 71.2 |
| Aor | 1499.6 |
| Dp | 179.8 |
| Prat | 1679.4 |
Performance (12 months)
| Games | 70 |
| Score | 49 |
| Percent | 70 |
| Aor | 1483.3 |
| Dp | 170 |
| Prat | 1653.3 |
Performance (History)
| Games | 178 |
| Score | 133.5 |
| Percent | 75 |
| Aor | 1368.4 |
| Dp | 212.5 |
| Prat | 1580.9 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Chen, N (Neo) | 8 | 3 | 5 | Ashton International College Chess Champs 2024 (Junior Primary) | The North Coast Open 2025 (Junior Primary) | Details |
| Overall | 2 | Asghar, G (Gabriel) | 5 | 2 | 3 | Dr Mhlanga Chess Challenge 2025 (Junior Primary) | 2026 KwaZulu Natal Open (D) | Details |
| Overall | 3 | Maseko, T (Taddeus) | 5 | 3 | 2 | Westville Senior Primary Chess Tournament 2024 (Junior Primary) | 2025 KZN Provincial Trials (U10) | Details |
| Overall | 4 | Chonan, K (Kedhar) | 3 | 3 | 0 | Umhlali Chess Festival 2025 (Grade 2+3) | Crawford North Coast Chess Champs 2025 (Junior Primary) | Details |
| Overall | 5 | Power, A (Amber) | 3 | 2 | 1 | Westville Senior Primary Chess Tournament 2024 (Junior Primary) | Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Candidates) | Details |
| Standard | 1 | Chen, N (Neo) | 4 | 1 | 3 | 2024 ILembe Youth Trials (U8+U10) | The North Coast Open 2025 (Junior Primary) | Details |
| Standard | 2 | Asghar, L (Luca) | 3 | 1 | 2 | Dr Mhlanga Chess Challenge 2025 (Junior Primary) | 2025 KZN Open (C) | Details |
| Standard | 3 | Maseko, T (Taddeus) | 3 | 2 | 1 | Mzansi Interprovincial Youth Chess Championships 2024 (U10 Open Candidates) | Knight's Quest 2025 (U8+U10) | Details |
| Standard | 4 | Asghar, G (Gabriel) | 3 | 2 | 1 | Dr Mhlanga Chess Challenge 2025 (Junior Primary) | 2026 KwaZulu Natal Open (D) | Details |
| Standard | 5 | Ellender, A (Asher) | 2 | 2 | 0 | Salt Rock 60/60 2025 (Boys) | 2026 KwaZulu Natal Closed Championship (U12) | Details |
| Rapid | 1 | Chen, N (Neo) | 4 | 2 | 2 | Ashton International College Chess Champs 2024 (Junior Primary) | 2025 Ashton Ballito Chess Champs (Junior Primary) | Details |
| Rapid | 2 | Boniaszczuk, A (Aleksander) | 2 | 1 | 1 | 2025 Ashton Ballito Chess Champs (Junior Primary) | 2025 KZN Provincial Trials (U10) | Details |
| Rapid | 3 | Chonan, K (Kedhar) | 2 | 2 | 0 | Umhlali Chess Festival 2025 (Grade 2+3) | Crawford North Coast Chess Champs 2025 (Junior Primary) | Details |
| Rapid | 4 | Asghar, G (Gabriel) | 2 | 0 | 2 | Umhlali Chess Festival 2025 (Grade 2+3) | 2025 Ashton Ballito Chess Champs (Junior Primary) | Details |
| Rapid | 5 | Maseko, T (Taddeus) | 2 | 1 | 1 | Westville Senior Primary Chess Tournament 2024 (Junior Primary) | 2025 KZN Provincial Trials (U10) | Details |