PLAYER PAGE
Personal
Viljoen, A (Adriaan Johannes)
Chess SA id
1120138295FIDE id
?Date of birth
2012-09-27 (U14)Gender
MaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
YesLast active game
2025-08-10Personal details last changed
1900-01-01Junior GPX Games
27Junior GPX Points
1295.6| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1269.9 | 1270 | 1200 | 1200 |
| Raw rating | 1269.9 | 1270 | 1200 | 1200 |
| Weighted rating | 1245.6 | 1239.5 | 1200 | 1200 |
| Weighted performance | 1231.8 | 1231.4 | 0 | 0 |
| Floor | 769.9 | 770 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 150.1 | 150.1 | 165.8 | 165.8 |
| Highest rating | 1281.72024-02-01 | 1275.92024-02-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 1269.92025-09-01 | 12702025-09-01 | 12002024-02-01 | 12002024-02-01 |
| Highest weighted rating | 1240.62025-09-01 | 1233.22025-09-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 1281.72024-02-01 | 1275.92024-02-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1269.9 | 1270 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1269.9 | 1270 | 1200 | 1200 |
| Raw rating | 1269.9 | 1270 | 1200 | 1200 |
| Weighted rating | 1245.6 | 1239.5 | 1200 | |
| Weighted performance | 1231.8 | 1231.4 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 769.9 | 770 | 700 | 700 |
| Max/Min rating change allowed | 150.1 | 150.1 | 165.8 | 165.8 |
| Games | 0 | 0 | 0 | 0 |
| Score | 0 | 0 | 0 | 0 |
| Expected score | 0 | 0 | 0 | 0 |
| Score-Expected | 0 | 0 | 0 | 0 |
| Temp raw +/- | 0 | 0 | 0 | 0 |
| Final raw +/- | 0 | 0 | 0 | 0 |
| New raw rating | 1269.9 | 1270 | 1200 | 1200 |
| New weighted rating | 1247.8 | 1242.3 | 1200 | 1200 |
| New weighted performance | 1224.3 | 1223.9 | 0 | 0 |
| Temp new rating | 1269.9 | 1270 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1269.9 | 1270 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 769.9 | 770 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 27 | 27 | 0 | 0 | |
| 25 | 25 | 0 | 0 | |
| 32 | 32 | 0 | 0 | |
| 37 | 37 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 121 | 121 | 0 | 0 |
| Games since | |||||||||||||||||
| Main52 | Standard52 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U14 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | 3547 | 1184 | 417 | ||||||||||||||
| Male | 2730 | 907 | 320 | ||||||||||||||
| U14 | 677 | 224 | 76 | ||||||||||||||
| U14 Male | 484 | 155 | 56 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 3452 | 1246 | 469 | ||||||||||||||
| Male | 2665 | 967 | 360 | ||||||||||||||
| U14 | 654 | 230 | 83 | ||||||||||||||
| U14 Male | 464 | 162 | 56 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 Male | -1 | -1 | -1 | ||||||||||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 0 | 0 | 0 | 0 | 0 | 0 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 27 | 14 | 51.85 | 15.7 | 1287.4 | 1303.1 |
| Standard | 27 | 14 | 51.85 | 15.7 | 1287.4 | 1303.1 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 121 | 50 | 41.32 | -73.8 | 1230.2 | 1156.4 |
| Standard | 121 | 50 | 41.32 | -73.8 | 1230.2 | 1156.4 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1269.9 | 1270 | 1200 | 1200 |
| 2025-09-30 | 1269.9 | 1270 | 1200 | 1200 |
| 2025-09-01 | 1269.9 | 1270 | 1200 | 1200 |
| 2025-08-01 | 1262.5 | 1261.7 | 1200 | 1200 |
| 2025-07-01 | 1258.3 | 1255.9 | 1200 | 1200 |
| 2025-06-01 | 1258.3 | 1255.9 | 1200 | 1200 |
| 2025-05-01 | 1258.3 | 1255.9 | 1200 | 1200 |
| 2025-04-01 | 1258.3 | 1255.9 | 1200 | 1200 |
| 2025-03-01 | 1236.2 | 1228.4 | 1200 | 1200 |
| 2025-02-01 | 1220.8 | 1209.6 | 1200 | 1200 |
| 2025-01-01 | 1199.3 | 1182.8 | 1200 | 1200 |
| 2024-12-01 | 1199.3 | 1182.8 | 1200 | 1200 |
| 2024-11-01 | 1199.3 | 1182.8 | 1200 | 1200 |
| 2024-10-01 | 1199.3 | 1182.8 | 1200 | 1200 |
| 2024-09-01 | 1199.3 | 1182.8 | 1200 | 1200 |
| 2024-08-01 | 1212.1 | 1195.8 | 1200 | 1200 |
| 2024-07-01 | 1268.9 | 1263.1 | 1200 | 1200 |
| 2024-09-01 | 1268.9 | 1263.1 | 1200 | 1200 |
| 2024-05-01 | 1268.9 | 1263.1 | 1200 | 1200 |
| 2024-04-01 | 1268.9 | 1263.1 | 1200 | 1200 |
| 2024-03-01 | 1268.9 | 1263.1 | 1200 | 1200 |
| 2024-02-01 | 1248.1 | 1242.2 | 1200 | 1200 |
| 2024-01-01 | 1219.7 | 1213 | 1200 | 1200 |
| 2023-12-01 | 1219.7 | 1213 | 1200 | 1200 |
Comming soon.
Tournaments
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Etienne Lewis Closed Chess Tournament (U14) | 2025-08-08 | 2025-08-10 | Standard | Tshwane (GTP) | 7 | 7 | 3 | Yes | Analysis |
| 2 | 2025 Menlo Open (U14) | 2025-07-26 | 2025-07-26 | Standard | Tshwane (GTP) | 5 | 5 | 2.5 | Yes | Analysis |
| 3 | Lubowski Open 2025 (D1) | 2025-03-21 | 2025-03-22 | Standard | Tshwane (GTP) | 5 | 5 | 2.5 | Yes | Analysis |
| 4 | AHS Open Chess Tournament 2025 (D) | 2025-03-01 | 2025-03-01 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 5 | Constantiapark Open 2025 (D) | 2025-02-15 | 2025-02-15 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Etienne Lewis Closed Chess Tournament (U14) | 2025-08-08 | 2025-08-10 | Standard | Tshwane (GTP) | 7 | 7 | 3 | Yes | Analysis |
| 2 | 2025 Menlo Open (U14) | 2025-07-26 | 2025-07-26 | Standard | Tshwane (GTP) | 5 | 5 | 2.5 | Yes | Analysis |
| 3 | Lubowski Open 2025 (D1) | 2025-03-21 | 2025-03-22 | Standard | Tshwane (GTP) | 5 | 5 | 2.5 | Yes | Analysis |
| 4 | AHS Open Chess Tournament 2025 (D) | 2025-03-01 | 2025-03-01 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 5 | Constantiapark Open 2025 (D) | 2025-02-15 | 2025-02-15 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 6 | D4 Tshwane South District Schools Teams Chess Tournament 2024 (U13A) | 2024-08-03 | 2024-08-03 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 7 | Menlopark Open Chess Tournament 2024 (B) | 2024-07-13 | 2024-07-13 | Standard | Tshwane (GTP) | 5 | 5 | 0 | Yes | Analysis |
| 8 | 2024 Tshwane Chess AHS Open Chess Tournament (D1) | 2024-02-24 | 2024-02-24 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 9 | 2024 Constantiapark Open (D1) | 2024-02-17 | 2024-02-17 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 10 | 2024 Gauteng Inter-Region Chess Championship (U12C) | 2024-01-13 | 2024-01-14 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 11 | 2023 Etienne Lewis Closed Tournament (U12) | 2023-08-25 | 2023-08-27 | Standard | Tshwane (GTP) | 7 | 7 | 4 | Yes | Analysis |
| 12 | 2023 Tshwane South School District CLOSED League Championship (U11) | 2023-07-29 | 2023-07-29 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 13 | 2023 Menlo Open Tournament (D) | 2023-07-22 | 2023-07-22 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 14 | 2023 Tshwane South School District CLOSED Individual Championships (U11 Open) | 2023-04-22 | 2023-04-22 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 15 | 2023 Afrikaans Hoër Seunskool Open Chess Tournament (D2) | 2023-03-04 | 2023-03-04 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 16 | Laerskool Constantiapark Open Chess Tournament 2023 (U12) | 2023-02-18 | 2023-02-18 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 17 | Lardies Tournament 2022 (U12) | 2022-10-29 | 2022-10-29 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 18 | 2022 Gauteng North Chess Open (D) | 2022-10-15 | 2022-10-16 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 19 | 2022 Etienne Lewis (U12 Open) | 2022-09-02 | 2022-09-04 | Standard | Tshwane (GTP) | 7 | 6 | 0 | Yes | Analysis |
| 20 | 2022 Alekhine Open (D) | 2022-08-13 | 2022-08-14 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 21 | 2022 Mid Gauteng Open (D) | 2022-05-07 | 2022-05-07 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 22 | 2022 Silver Lakes Chess Club Open Chess Tournament (D) | 2022-05-14 | 2022-05-14 | Standard | Tshwane (GTP) | 5 | 5 | 2.5 | Yes | Analysis |
| 23 | 2022 Milos Ristic Open Chess Tournament (D) | 2022-05-28 | 2022-05-28 | Standard | Tshwane (GTP) | 5 | 4 | 0 | Yes | Analysis |
| 24 | 2022 Chris Greyling Open (D) | 2022-03-12 | 2022-03-12 | Standard | Tshwane (GTP) | 5 | 4 | 0.5 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Menlo Open | Tournament2025 Etienne Lewis Closed Chess Tournament | ||||||
| date2025-07-26 | rnd3 | typeStandard | result1 | date2025-08-08 | rnd1 | typeStandard | result1 | ||
| OpponentPienaar, R (Ruben) | OpponentEngelbrecht, A (Amber-Lee) | ||||||||
| 2 | 4 | TournamentAHS Open Chess Tournament 2025 | TournamentLubowski Open 2025 | ||||||
| date2025-03-01 | rnd5 | typeStandard | result1 | date2025-03-21 | rnd3 | typeStandard | result1 | ||
| OpponentVan Der Merwe, H (Hendrik) | OpponentVounatsos, L (Levi) | ||||||||
| 3 | 4 | TournamentD4 Tshwane South District Schools Teams Chess Tournament 2024 | TournamentConstantiapark Open 2025 | ||||||
| date2024-08-03 | rnd4 | typeStandard | result1 | date2025-02-15 | rnd2 | typeStandard | result1 | ||
| OpponentSwart, J (Juan-Franco) | OpponentVan Der Wath, L (Logan) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | Tournament2025 Menlo Open | Tournament2025 Etienne Lewis Closed Chess Tournament | ||||||
| date2025-07-26 | rnd3 | typeStandard | result1 | date2025-08-08 | rnd1 | typeStandard | result1 | ||
| OpponentPienaar, R (Ruben) | OpponentEngelbrecht, A (Amber-Lee) | ||||||||
| 2 | 4 | TournamentAHS Open Chess Tournament 2025 | TournamentLubowski Open 2025 | ||||||
| date2025-03-01 | rnd5 | typeStandard | result1 | date2025-03-21 | rnd3 | typeStandard | result1 | ||
| OpponentVan Der Merwe, H (Hendrik) | OpponentVounatsos, L (Levi) | ||||||||
| 3 | 4 | TournamentD4 Tshwane South District Schools Teams Chess Tournament 2024 | TournamentConstantiapark Open 2025 | ||||||
| date2024-08-03 | rnd4 | typeStandard | result1 | date2025-02-15 | rnd2 | typeStandard | result1 | ||
| OpponentSwart, J (Juan-Franco) | OpponentVan Der Wath, L (Logan) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | TournamentD4 Tshwane South District Schools Teams Chess Tournament 2024 | TournamentConstantiapark Open 2025 | ||||||
| date2024-08-03 | rnd4 | typeStandard | result1 | date2025-02-15 | rnd2 | typeStandard | result1 | ||
| OpponentSwart, J (Juan-Franco) | OpponentVan Der Wath, L (Logan) | ||||||||
| 2 | 4 | Tournament2023 Afrikaans Hoër Seunskool Open Chess Tournament | Tournament2023 Tshwane South School District CLOSED Individual Championships | ||||||
| date2023-03-04 | rnd4 | typeStandard | result1 | date2023-04-22 | rnd2 | typeStandard | result1 | ||
| OpponentYousafzai, L (Lawangin) | OpponentBight, C (Chase) | ||||||||
| 3 | 3 | Tournament2024 Gauteng Inter-Region Chess Championship | Tournament2024 Gauteng Inter-Region Chess Championship | ||||||
| date2024-01-13 | rnd3 | typeStandard | result1 | date2024-01-14 | rnd5 | typeStandard | result1 | ||
| OpponentMagedi, D (Dimpho) | OpponentRas, A (Adenei) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | TournamentD4 Tshwane South District Schools Teams Chess Tournament 2024 | TournamentConstantiapark Open 2025 | ||||||
| date2024-08-03 | rnd4 | typeStandard | result1 | date2025-02-15 | rnd2 | typeStandard | result1 | ||
| OpponentSwart, J (Juan-Franco) | OpponentVan Der Wath, L (Logan) | ||||||||
| 2 | 4 | Tournament2023 Afrikaans Hoër Seunskool Open Chess Tournament | Tournament2023 Tshwane South School District CLOSED Individual Championships | ||||||
| date2023-03-04 | rnd4 | typeStandard | result1 | date2023-04-22 | rnd2 | typeStandard | result1 | ||
| OpponentYousafzai, L (Lawangin) | OpponentBight, C (Chase) | ||||||||
| 3 | 3 | Tournament2024 Gauteng Inter-Region Chess Championship | Tournament2024 Gauteng Inter-Region Chess Championship | ||||||
| date2024-01-13 | rnd3 | typeStandard | result1 | date2024-01-14 | rnd5 | typeStandard | result1 | ||
| OpponentMagedi, D (Dimpho) | OpponentRas, A (Adenei) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
Top 10 opponents most often played
| # | Opponent | Main | Standard | Rapid | Blitz | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | Gms | Score | Dp | ||
| Aor | Prat | Aor | Prat | Aor | Prat | Aor | Prat | ||||||
| 1 | Pretorius ,P (Pieter) | 3 | 1 | -141.7 | 3 | 1 | -141.7 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1121.7 | 980.1 | 1108.3 | 980.1 | 0 | 0 | 0 | 0 | ||||||
| 2 | Botha ,L (Logan) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1228.1 | 1228.1 | 1227.4 | 1228.1 | 0 | 0 | 0 | 0 | ||||||
| 3 | Fokker ,CD (Christiaan Dirk) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1221.4 | 796.4 | 1215 | 796.4 | 0 | 0 | 0 | 0 | ||||||
| 4 | Mahlangu ,NP (Nkosinathi Phillip) | 2 | 0.5 | -212.5 | 2 | 0.5 | -212.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1148.9 | 936.4 | 1138.1 | 936.4 | 0 | 0 | 0 | 0 | ||||||
| 5 | Webb ,A (Abbygail) | 2 | 1.5 | 212.5 | 2 | 1.5 | 212.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1161.2 | 1373.7 | 1151.8 | 1373.7 | 0 | 0 | 0 | 0 | ||||||
| 6 | Du Bruyn ,D (Dylan) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1240.4 | 815.4 | 1234.6 | 815.4 | 0 | 0 | 0 | 0 | ||||||
| 7 | Padayachy ,V (Vidya) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1351 | 926 | 1342.1 | 926 | 0 | 0 | 0 | 0 | ||||||
| 8 | Van Der Merwe ,H (Hendrik) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1178.4 | 1603.4 | 1169.6 | 1603.4 | 0 | 0 | 0 | 0 | ||||||
| 9 | Ndebele ,AT (Akhumzi Thandolwenkosi) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1217.7 | 1217.7 | 1206.4 | 1217.7 | 0 | 0 | 0 | 0 | ||||||
| 10 | Buchner ,E (Emil) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1378.2 | 953.2 | 1373.9 | 953.2 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|