PLAYER PAGE
Mariané Viviers
2140307022ZF Mgcawu (NZF)Personal
Main rating
| Rating | 1420.1 |
| K-factor | 32 |
| Floor | 989 |
| Highest | 1489 (2026-04-01) |
| Min/Max +/- allowed | 110 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 3.14 |
| SWe | -0.12 |
| Temp +/- | -3.7 |
| Penalties | 0 |
| Weight perform | 1317 |
| Final +/- | -3.7 |
| New Rating () | |
| Rating | 1416.4 |
| K-factor | 32 |
| Floor | 989 |
| Highest | 1489 (2026-04-01) |
| Min/Max +/- allowed | 109.9 |
Standard rating
| Rating | 1410.8 |
| K-factor | 32 |
| Floor | 989 |
| Highest | 1489 (2026-04-01) |
| Min/Max +/- allowed | 109.9 |
| Rating Change () | |
| Games | 5 |
| Score | 3 |
| We | 3.1 |
| SWe | -0.1 |
| Temp +/- | -3.2 |
| Penalties | 0 |
| Weight perform | 1317 |
| Final +/- | -3.2 |
| New Rating () | |
| Rating | 1407.6 |
| K-factor | 32 |
| Floor | 989 |
| Highest | 1489 (2026-04-01) |
| Min/Max +/- allowed | 109.9 |
Rapid rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-10-01) |
| 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 (2024-10-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-10-01) |
| 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 (2024-10-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 2026 Veltie Royal Chess Tournament 2 (B) | Standard | 2026-10-23 | 2026-10-24 | ZF Mgcawu (NZF) | 5 | 1420.1 | 5 | 3 | 1402.8 | -3.7 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Northern Cape Closed 2026 (U14 Girls) | Standard | 2026-08-21 | 2026-08-22 | ZF Mgcawu (NZF) | 5 | 1420.1 | 5 | 3 | 1345.5 | -14.2 | Details |
| 2 | Inter Regional Chess Championship 2026 (Individual U14) | Standard | 2026-05-22 | 2026-05-23 | Mangaung (FMB) | 5 | 1489 | 5 | 2 | 1132.6 | -54.8 | Details |
| 3 | Keimoes Akademie 25 April 2026 (U12) | Standard | 2026-04-25 | 2026-04-25 | ZF Mgcawu (NZF) | 5 | 1379.8 | 5 | 4.5 | 1603.6 | 38.3 | Details |
| 4 | 2026 Northern Cape Open Chess Championship (C) | Standard | 2026-04-17 | 2026-04-19 | Frances Baard (NCF) | 7 | 1379.8 | 7 | 3.5 | 1241.8 | -39.4 | Details |
| 5 | HS Keimoes 2026 (U12) | Standard | 2026-03-21 | 2026-03-21 | ZF Mgcawu (NZF) | 5 | 1379.8 | 5 | 5 | 1672.1 | 50.4 | Details |
| 6 | Keimoes Akademie Skaaktoernooi 2026 (U12) | Standard | 2026-02-28 | 2026-02-28 | ZF Mgcawu (NZF) | 5 | 1338.3 | 5 | 4.5 | 1580.7 | 41.5 | Details |
| 7 | 2025 Mzansi Individual Championships (U12 Girls) | Classical | 2025-12-17 | 2025-12-20 | Nelson Mandela Bay (ENM) | 6 | 1323.5 | 6 | 3 | 1354.3 | 4.4 | Details |
| 8 | 2025 Mzansi Inter Provincial Team Championships (U12 Combined) | Standard | 2025-12-15 | 2025-12-17 | Nelson Mandela Bay (ENM) | 6 | 1323.5 | 6 | 3 | 1358.1 | 4 | Details |
| 9 | 2025 Veltie Royal Chess Tournament | Standard | 2025-10-31 | 2025-11-01 | ZF Mgcawu (NZF) | 5 | 1305 | 3 | 2.5 | 1467 | 10.3 | Details |
| 10 | Northern Cape Closed 202 (U12 Girls) | Standard | 2025-08-22 | 2025-08-23 | ZF Mgcawu (NZF) | 5 | 1314.5 | 5 | 2.5 | 1245.8 | -8.3 | Details |
| 11 | 2025 Simmie Superstars Chess Tournament (U12) | Standard | 2025-08-02 | 2025-08-02 | ZF Mgcawu (NZF) | 5 | 1314.5 | 5 | 3 | 1352.3 | 3 | Details |
| 12 | Spartan Bishops Championships Maidens 2025 (U12) | Standard | 2025-05-23 | 2025-05-25 | Frances Baard (NCF) | 5 | 1214.7 | 5 | 3 | 1381.5 | 15.6 | Details |
| 13 | 2025 ZFM Closed Chess Championship (U12) | Standard | 2025-05-09 | 2025-05-10 | ZF Mgcawu (NZF) | 5 | 1214.7 | 5 | 3 | 1398.9 | 17.3 | Details |
| 14 | Keimoes K & Q Chess Club Open 2025 (U12) | Standard | 2025-05-03 | 2025-05-03 | ZF Mgcawu (NZF) | 6 | 1214.7 | 6 | 3 | 1289.5 | 8.6 | Details |
| 15 | Veltie Royal Klub Toernooi 31 Jan tot 1 Feb 2025 (C) | Standard | 2025-01-31 | 2025-02-01 | ZF Mgcawu (NZF) | 5 | 1194.1 | 5 | 3 | 1304.7 | 11.5 | Details |
| 16 | Mzansi Interprovincial Youth Chess Championships 2024 (U12 Girls Championship) | Classical | 2024-12-16 | 2024-12-19 | Capricorn (LCP) | 7 | 1203.6 | 7 | 0.5 | 996.2 | -33.6 | Details |
| 17 | 2024 Moja Chess Extravaganza (D) | Standard | 2024-09-25 | 2024-09-26 | Frances Baard (NCF) | 5 | 1190.6 | 5 | 2 | 1257.1 | 7.2 | Details |
| 18 | 2024 NC Closed Chess Championships (U12 Girls) | Standard | 2024-08-23 | 2024-08-25 | Frances Baard (NCF) | 5 | 1247.8 | 4 | 1 | 905.8 | -31.9 | Details |
| 19 | 2024 Duineveld Open Toernooi (U8+U10) | Standard | 2024-07-20 | 2024-07-20 | ZF Mgcawu (NZF) | 5 | 1200 | 5 | 4 | 1451.9 | 23.9 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 3 |
| Draws | 0 |
| Losses | 2 |
| White | 3 |
| Black | 2 |
| White wins | 2 |
| Black wins | 1 |
| Score | 3 |
| Percent | 60 |
| Dp | 85 |
| AOR | 1317.8 |
| Performance | 1402.8 |
Game statistics ()
| Games | 37 |
| Wins | 24 |
| Draws | 3 |
| Losses | 10 |
| White | 20 |
| Black | 17 |
| White wins | 13 |
| Black wins | 11 |
| Score | 25.5 |
| Percent | 68.9 |
| Dp | 160.8 |
| AOR | 1254.8 |
| Performance | 1415.6 |
Game statistics (History)
| Games | 104 |
| Wins | 56 |
| Draws | 6 |
| Losses | 42 |
| White | 55 |
| Black | 49 |
| White wins | 31 |
| Black wins | 25 |
| Score | 59 |
| Percent | 56.7 |
| Dp | 57.2 |
| AOR | 1273.1 |
| Performance | 1330.3 |
Rankings (Main)
| National | |
| Overall | 3191 |
| Gender | 478 |
| Age group | 382 |
| Gender/Age | 102 |
| Provincial | |
| Overall | 88 |
| Gender | 13 |
| Age group | 15 |
| Gender/Age | 4 |
| Regional | |
| Overall | 8 |
| Gender | 3 |
| Age group | 2 |
| Gender/Age | 2 |
Rankings (Standard)
| National | |
| Overall | 2976 |
| Gender | 489 |
| Age group | 368 |
| Gender/Age | 106 |
| Provincial | |
| Overall | 90 |
| Gender | 13 |
| Age group | 12 |
| Gender/Age | 4 |
| Regional | |
| Overall | 10 |
| Gender | 3 |
| Age group | 2 |
| Gender/Age | 2 |
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 | 32 |
| Score | 22.5 |
| Percent | 70.3 |
| Aor | 1245 |
| Dp | 172.7 |
| Prat | 1417.7 |
Performance (12 months)
| Games | 47 |
| Score | 31 |
| Percent | 66 |
| Aor | 1269.5 |
| Dp | 135.6 |
| Prat | 1405.1 |
Performance (History)
| Games | 99 |
| Score | 56 |
| Percent | 56.6 |
| Aor | 1270.8 |
| Dp | 55.8 |
| Prat | 1326.6 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Fourie, RH (Rosa Hermiena) | 8 | 5 | 3 | 2024 Duineveld Open Toernooi (U8+U10) | HS Keimoes 2026 (U12) | Details |
| Overall | 2 | Pieters, Z (Zoë-Jessie) | 6 | 4 | 2 | 2024 Duineveld Open Toernooi (U8+U10) | Northern Cape Closed 2026 (U14 Girls) | Details |
| Overall | 3 | Nieuwoudt, W (Wilmie) | 4 | 2 | 2 | Keimoes K & Q Chess Club Open 2025 (U12) | HS Keimoes 2026 (U12) | Details |
| Overall | 4 | Thirion, C (Charles Nicolass) | 3 | 2 | 1 | 2025 Simmie Superstars Chess Tournament (U12) | Keimoes Akademie 25 April 2026 (U12) | Details |
| Overall | 5 | Boltman, E (Elisheva) | 2 | 2 | 0 | HS Keimoes 2026 (U12) | 2026 Northern Cape Open Chess Championship (C) | Details |
| Standard | 1 | Fourie, RH (Rosa Hermiena) | 8 | 5 | 3 | 2024 Duineveld Open Toernooi (U8+U10) | HS Keimoes 2026 (U12) | Details |
| Standard | 2 | Pieters, Z (Zoë-Jessie) | 6 | 4 | 2 | 2024 Duineveld Open Toernooi (U8+U10) | Northern Cape Closed 2026 (U14 Girls) | Details |
| Standard | 3 | Nieuwoudt, W (Wilmie) | 4 | 2 | 2 | Keimoes K & Q Chess Club Open 2025 (U12) | HS Keimoes 2026 (U12) | Details |
| Standard | 4 | Thirion, C (Charles Nicolass) | 3 | 2 | 1 | 2025 Simmie Superstars Chess Tournament (U12) | Keimoes Akademie 25 April 2026 (U12) | Details |
| Standard | 5 | Morwe, K (Kemiso) | 2 | 1 | 1 | Northern Cape Closed 202 (U12 Girls) | 2025 Mzansi Individual Championships (U12 Girls) | Details |