PLAYER PAGE
Adriaan Johannes Viljoen
1120138295Tshwane (GTP)Personal
Main rating
| Rating | 1306.8 |
| K-factor | 36 |
| Floor | 806.8 |
| Highest | 1306.8 (2026-01-01) |
| Min/Max +/- allowed | 142 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1278 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1306.8 |
| K-factor | 36 |
| Floor | 806.8 |
| Highest | 1306.8 (2026-01-01) |
| Min/Max +/- allowed | 142.4 |
Standard rating
| Rating | 1306.8 |
| K-factor | 36 |
| Floor | 806.8 |
| Highest | 1306.8 (2026-01-01) |
| Min/Max +/- allowed | 142.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1278 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1306.8 |
| K-factor | 36 |
| Floor | 806.8 |
| Highest | 1306.8 (2026-01-01) |
| Min/Max +/- allowed | 142.4 |
Rapid 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 |
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 AHS Chess Tournament (D) | Standard | 2026-02-28 | 2026-02-28 | Tshwane (GTP) | 5 | 1306.8 | 5 | 3 | 1307.2 | -0.9 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Gauteng Inter-Region at Emerald Resort 2025 (U14 Candidates) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1269.9 | 5 | 3.5 | 1461.4 | 0 | Details |
| 2 | 2025 Etienne Lewis Closed Chess Tournament (U14) | Standard | 2025-08-08 | 2025-08-10 | Tshwane (GTP) | 7 | 1262.5 | 7 | 3 | 1295.2 | 0 | Details |
| 3 | 2025 Menlo Open (U14) | Standard | 2025-07-26 | 2025-07-26 | Tshwane (GTP) | 5 | 1258.3 | 5 | 2.5 | 1275.2 | 0 | Details |
| 4 | Lubowski Open 2025 (D1) | Standard | 2025-03-21 | 2025-03-22 | Tshwane (GTP) | 5 | 1236.2 | 5 | 2.5 | 1315.6 | 0 | Details |
| 5 | AHS Open Chess Tournament 2025 (D) | Standard | 2025-03-01 | 2025-03-01 | Tshwane (GTP) | 5 | 1236.2 | 5 | 3 | 1316.9 | 0 | Details |
| 6 | Constantiapark Open 2025 (D) | Standard | 2025-02-15 | 2025-02-15 | Tshwane (GTP) | 5 | 1220.8 | 5 | 3 | 1315.8 | 0 | Details |
| 7 | D4 Tshwane South District Schools Teams Chess Tournament 2024 (U13A) | Standard | 2024-08-03 | 2024-08-03 | Tshwane (GTP) | 5 | 1212.1 | 5 | 2 | 1147.3 | 0 | Details |
| 8 | Menlopark Open Chess Tournament 2024 (B) | Standard | 2024-07-13 | 2024-07-13 | Tshwane (GTP) | 5 | 1268.9 | 5 | 0 | 939.5 | 0 | Details |
| 9 | 2024 Tshwane Chess AHS Open Chess Tournament (D1) | Standard | 2024-02-24 | 2024-02-24 | Tshwane (GTP) | 5 | 1248.1 | 5 | 2 | 1169.5 | 0 | Details |
| 10 | 2024 Constantiapark Open (D1) | Standard | 2024-02-17 | 2024-02-17 | Tshwane (GTP) | 5 | 1248.1 | 5 | 3 | 1382.3 | 0 | Details |
| 11 | 2024 Gauteng Inter-Region Chess Championship (U12C) | Standard | 2024-01-13 | 2024-01-14 | Tshwane (GTP) | 5 | 1219.7 | 5 | 4 | 1352.7 | 0 | Details |
| 12 | 2023 Etienne Lewis Closed Tournament (U12) | Standard | 2023-08-25 | 2023-08-27 | Tshwane (GTP) | 7 | 1181.8 | 7 | 4 | 1292.3 | 0 | Details |
| 13 | 2023 Tshwane South School District CLOSED League Championship (U11) | Standard | 2023-07-29 | 2023-07-29 | Tshwane (GTP) | 5 | 1148.7 | 5 | 3 | 1383.8 | 0 | Details |
| 14 | 2023 Menlo Open Tournament (D) | Standard | 2023-07-22 | 2023-07-22 | Tshwane (GTP) | 5 | 1148.7 | 5 | 1 | 1017.4 | 0 | Details |
| 15 | 2023 Tshwane South School District CLOSED Individual Championships (U11 Open) | Standard | 2023-04-22 | 2023-04-22 | Tshwane (GTP) | 5 | 1120.7 | 5 | 2 | 1147.4 | 0 | Details |
| 16 | 2023 Afrikaans Hoër Seunskool Open Chess Tournament (D2) | Standard | 2023-03-04 | 2023-03-04 | Tshwane (GTP) | 5 | 1049.1 | 5 | 3 | 1250.7 | 0 | Details |
| 17 | Laerskool Constantiapark Open Chess Tournament 2023 (U12) | Standard | 2023-02-18 | 2023-02-18 | Tshwane (GTP) | 5 | 1032.8 | 5 | 2 | 1126.6 | 0 | Details |
| 18 | Lardies Tournament 2022 (U12) | Standard | 2022-10-29 | 2022-10-29 | Tshwane (GTP) | 5 | 969 | 5 | 3 | 1275.6 | 0 | Details |
| 19 | 2022 Gauteng North Chess Open (D) | Standard | 2022-10-15 | 2022-10-16 | Tshwane (GTP) | 5 | 969 | 4 | 1 | 987.8 | 0 | Details |
| 20 | 2022 Etienne Lewis (U12 Open) | Standard | 2022-09-02 | 2022-09-04 | Tshwane (GTP) | 7 | 1052.1 | 6 | 0 | 741.2 | 0 | Details |
| 21 | 2022 Alekhine Open (D) | Standard | 2022-08-13 | 2022-08-14 | Tshwane (GTP) | 5 | 1050.6 | 5 | 2 | 1064.4 | 0 | Details |
| 22 | 2022 Mid Gauteng Open (D) | Standard | 2022-05-07 | 2022-05-07 | Tshwane (GTP) | 5 | 1149.2 | 4 | 1 | 917.1 | 0 | Details |
| 23 | 2022 Silver Lakes Chess Club Open Chess Tournament (D) | Standard | 2022-05-14 | 2022-05-14 | Tshwane (GTP) | 5 | 1149.2 | 5 | 2.5 | 1162.4 | 0 | Details |
| 24 | 2022 Milos Ristic Open Chess Tournament (D) | Standard | 2022-05-28 | 2022-05-28 | Tshwane (GTP) | 5 | 1149.2 | 4 | 0 | 757.8 | 0 | Details |
| 25 | 2022 Chris Greyling Open (D) | Standard | 2022-03-12 | 2022-03-12 | Tshwane (GTP) | 5 | 1200 | 4 | 0.5 | 875.3 | 0 | 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 | 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 (History)
| Games | 126 |
| Wins | 50 |
| Draws | 7 |
| Losses | 69 |
| White | 66 |
| Black | 60 |
| White wins | 24 |
| Black wins | 26 |
| Score | 53.5 |
| Percent | 42.5 |
| Dp | -64.1 |
| AOR | 1232.6 |
| Performance | 1168.5 |
Rankings (Main)
| National | |
| Overall | 5762 |
| Gender | 4780 |
| Age group | 960 |
| Gender/Age | 743 |
| Provincial | |
| Overall | 1948 |
| Gender | 1618 |
| Age group | 331 |
| Gender/Age | 253 |
| Regional | |
| Overall | 672 |
| Gender | 553 |
| Age group | 115 |
| Gender/Age | 92 |
Rankings (Standard)
| National | |
| Overall | 5165 |
| Gender | 4253 |
| Age group | 872 |
| Gender/Age | 677 |
| Provincial | |
| Overall | 1857 |
| Gender | 1533 |
| Age group | 333 |
| Gender/Age | 254 |
| Regional | |
| Overall | 667 |
| Gender | 548 |
| Age group | 121 |
| Gender/Age | 97 |
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 | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 22 |
| Score | 11.5 |
| Percent | 52.3 |
| Aor | 1313.7 |
| Dp | 19.3 |
| Prat | 1333.1 |
Performance (History)
| Games | 126 |
| Score | 53.5 |
| Percent | 42.5 |
| Aor | 1232.6 |
| Dp | -64.1 |
| Prat | 1168.5 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Pretorius, P (Pieter) | 3 | 1 | 2 | 2022 Milos Ristic Open Chess Tournament (D) | Lardies Tournament 2022 (U12) | Details |
| Overall | 2 | Pistorius, A (Anabelle) | 2 | 2 | 0 | 2022 Mid Gauteng Open (D) | 2023 Menlo Open Tournament (D) | Details |
| Overall | 3 | Mahlangu, NP (Nkosinathi Phillip) | 2 | 1 | 1 | 2022 Milos Ristic Open Chess Tournament (D) | 2022 Silver Lakes Chess Club Open Chess Tournament (D) | Details |
| Overall | 4 | Fokker, CD (Christiaan Dirk) | 2 | 2 | 0 | 2023 Tshwane South School District CLOSED Individual Championships (U11 Open) | 2023 Etienne Lewis Closed Tournament (U12) | Details |
| Overall | 5 | Du Bruyn, D (Dylan) | 2 | 1 | 1 | Laerskool Constantiapark Open Chess Tournament 2023 (U12) | 2023 Tshwane South School District CLOSED League Championship (U11) | Details |
| Standard | 1 | Pretorius, P (Pieter) | 3 | 1 | 2 | 2022 Milos Ristic Open Chess Tournament (D) | Lardies Tournament 2022 (U12) | Details |
| Standard | 2 | Pistorius, A (Anabelle) | 2 | 2 | 0 | 2022 Mid Gauteng Open (D) | 2023 Menlo Open Tournament (D) | Details |
| Standard | 3 | Buchner, E (Emil) | 2 | 1 | 1 | 2023 Etienne Lewis Closed Tournament (U12) | Lubowski Open 2025 (D1) | Details |
| Standard | 4 | Van Der Merwe, H (Hendrik) | 2 | 1 | 1 | 2023 Afrikaans Hoër Seunskool Open Chess Tournament (D2) | AHS Open Chess Tournament 2025 (D) | Details |
| Standard | 5 | Ndebele, AT (Akhumzi Thandolwenkosi) | 2 | 2 | 0 | 2022 Alekhine Open (D) | 2023 Etienne Lewis Closed Tournament (U12) | Details |