PLAYER PAGE
Personal
De Villiers, IP (Izak Petrus)
Chess SA id
1120116864FIDE id
?Date of birth
2012-04-24 (U14)Gender
MaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-08-16Personal details last changed
1900-01-01Junior GPX Games
10Junior GPX Points
1139.4| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1189.4 | 1190.7 | 1200 | 1200 |
| Raw rating | 1189.4 | 1190.7 | 1200 | 1200 |
| Weighted rating | 1153.1 | 1145.3 | 1200 | 1200 |
| Weighted performance | 1029.7 | 1031.5 | 0 | 0 |
| Floor | 721.2 | 730.6 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 168.3 | 168 | 165.8 | 165.8 |
| Highest rating | 1221.22025-06-01 | 1230.62025-06-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 1221.22025-06-01 | 1230.62025-06-01 | 12002024-02-01 | 12002024-02-01 |
| Highest weighted rating | 1221.22018-10-01 | 1230.62018-10-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 12002020-01-01 | 12002020-01-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1189.4 | 1190.7 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1189.4 | 1190.7 | 1200 | 1200 |
| Raw rating | 1189.4 | 1190.7 | 1200 | 1200 |
| Weighted rating | 1153.1 | 1145.3 | 1200 | |
| Weighted performance | 1029.7 | 1031.5 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 721.2 | 730.6 | 700 | 700 |
| Max/Min rating change allowed | 168.3 | 168 | 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 | 1189.4 | 1190.7 | 1200 | 1200 |
| New weighted rating | 1157.1 | 1150.3 | 1200 | 1200 |
| New weighted performance | 1029.3 | 1031.1 | 0 | 0 |
| Temp new rating | 1189.4 | 1190.7 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1189.4 | 1190.7 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 721.2 | 730.6 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 10 | 10 | 0 | 0 | |
| 9 | 9 | 0 | 0 | |
| 5 | 5 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 24 | 24 | 0 | 0 |
| Games since | |||||||||||||||||
| Main19 | Standard19 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U14 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U14 | -1 | -1 | -1 | ||||||||||||||
| U14 Male | -1 | -1 | -1 | ||||||||||||||
| 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 | 10 | 3 | 30 | -170 | 1299.3 | 1129.3 |
| Standard | 10 | 3 | 30 | -170 | 1299.3 | 1129.3 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 24 | 7 | 29.17 | -177.1 | 1265 | 1087.9 |
| Standard | 24 | 7 | 29.17 | -177.1 | 1265 | 1087.9 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1189.4 | 1190.7 | 1200 | 1200 |
| 2025-09-01 | 1189.4 | 1190.7 | 1200 | 1200 |
| 2025-08-01 | 1221.2 | 1230.6 | 1200 | 1200 |
| 2025-07-01 | 1221.2 | 1230.6 | 1200 | 1200 |
| 2025-06-01 | 1221.2 | 1230.6 | 1200 | 1200 |
| 2025-05-01 | 1124 | 1108.8 | 1200 | 1200 |
| 2025-04-01 | 1124 | 1108.8 | 1200 | 1200 |
| 2025-03-01 | 1124 | 1108.8 | 1200 | 1200 |
| 2025-02-01 | 1124 | 1108.8 | 1200 | 1200 |
| 2025-01-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-12-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-11-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-10-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-09-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-08-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-07-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-06-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-08-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-04-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-03-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-02-01 | 1120 | 1104 | 1200 | 1200 |
| 2024-01-01 | 1120 | 1104 | 1200 | 1200 |
| 2023-12-01 | 1120 | 1104 | 1200 | 1200 |
| 2023-11-01 | 1120 | 1104 | 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 Tshwane North District CLOSED Team Championships (D3) (U13 Open) | 2025-08-16 | 2025-08-16 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 2 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U13 Open) | 2025-05-10 | 2025-05-10 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Tshwane North District CLOSED Team Championships (D3) (U13 Open) | 2025-08-16 | 2025-08-16 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 2 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U13 Open) | 2025-05-10 | 2025-05-10 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 3 | 2024 Tshwane North School District Team League Finals (U13) | 2024-08-03 | 2024-08-03 | Standard | Tshwane (GTP) | 5 | 4 | 2 | Yes | Analysis |
| 4 | District 3 Cluster 4 and 5 Individuals 2024 (U13 Boys) | 2024-05-04 | 2024-05-04 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 5 | 2023 Tshwane North School District CLOSED League Championships (D3) | 2023-08-12 | 2023-08-12 | Standard | Tshwane (GTP) | 5 | 5 | 0 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | ||||||
| date2025-05-10 | rnd2 | typeStandard | result1 | date2025-05-10 | rnd3 | typeStandard | result1 | ||
| OpponentMc Geer, E (Ethan Colin) | OpponentSmit, J (Janco) | ||||||||
| 2 | 2 | TournamentDistrict 3 Cluster 4 and 5 Individuals 2024 | TournamentDistrict 3 Cluster 4 and 5 Individuals 2024 | ||||||
| date2024-05-04 | rnd2 | typeStandard | result1 | date2024-05-04 | rnd3 | typeStandard | result1 | ||
| OpponentRaseroka, K (Koketso) | OpponentVan Der Berg, S (Sion Justus) | ||||||||
| 3 | 1 | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-08-16 | rnd1 | typeStandard | result1 | date2025-08-16 | rnd1 | typeStandard | result1 | ||
| OpponentNdlovu, F (Fezile) | OpponentNdlovu, F (Fezile) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | ||||||
| date2025-05-10 | rnd2 | typeStandard | result1 | date2025-05-10 | rnd3 | typeStandard | result1 | ||
| OpponentMc Geer, E (Ethan Colin) | OpponentSmit, J (Janco) | ||||||||
| 2 | 2 | TournamentDistrict 3 Cluster 4 and 5 Individuals 2024 | TournamentDistrict 3 Cluster 4 and 5 Individuals 2024 | ||||||
| date2024-05-04 | rnd2 | typeStandard | result1 | date2024-05-04 | rnd3 | typeStandard | result1 | ||
| OpponentRaseroka, K (Koketso) | OpponentVan Der Berg, S (Sion Justus) | ||||||||
| 3 | 1 | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-08-16 | rnd1 | typeStandard | result1 | date2025-08-16 | rnd1 | typeStandard | result1 | ||
| OpponentNdlovu, F (Fezile) | OpponentNdlovu, F (Fezile) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | ||||||
| date2025-05-10 | rnd2 | typeStandard | result1 | date2025-05-10 | rnd3 | typeStandard | result1 | ||
| OpponentMc Geer, E (Ethan Colin) | OpponentSmit, J (Janco) | ||||||||
| 2 | 2 | TournamentDistrict 3 Cluster 4 and 5 Individuals 2024 | TournamentDistrict 3 Cluster 4 and 5 Individuals 2024 | ||||||
| date2024-05-04 | rnd2 | typeStandard | result1 | date2024-05-04 | rnd3 | typeStandard | result1 | ||
| OpponentRaseroka, K (Koketso) | OpponentVan Der Berg, S (Sion Justus) | ||||||||
| 3 | 1 | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-08-16 | rnd1 | typeStandard | result1 | date2025-08-16 | rnd1 | typeStandard | result1 | ||
| OpponentNdlovu, F (Fezile) | OpponentNdlovu, F (Fezile) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | ||||||
| date2025-05-10 | rnd2 | typeStandard | result1 | date2025-05-10 | rnd3 | typeStandard | result1 | ||
| OpponentMc Geer, E (Ethan Colin) | OpponentSmit, J (Janco) | ||||||||
| 2 | 2 | TournamentDistrict 3 Cluster 4 and 5 Individuals 2024 | TournamentDistrict 3 Cluster 4 and 5 Individuals 2024 | ||||||
| date2024-05-04 | rnd2 | typeStandard | result1 | date2024-05-04 | rnd3 | typeStandard | result1 | ||
| OpponentRaseroka, K (Koketso) | OpponentVan Der Berg, S (Sion Justus) | ||||||||
| 3 | 1 | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | Tournament2025 Tshwane North District CLOSED Team Championships (D3) | ||||||
| date2025-08-16 | rnd1 | typeStandard | result1 | date2025-08-16 | rnd1 | typeStandard | result1 | ||
| OpponentNdlovu, F (Fezile) | OpponentNdlovu, F (Fezile) | ||||||||
| # | 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 | Van Niekerk ,CD (Christiaan David) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1472.9 | 1047.9 | 1475.9 | 1047.9 | 0 | 0 | 0 | 0 | ||||||
| 2 | Jonker ,T (Tertius) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1340.4 | 915.4 | 1331.8 | 915.4 | 0 | 0 | 0 | 0 | ||||||
| 3 | Ralekhetho ,N (Ntako) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 4 | Phatlane ,A (Amogelang) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1217.3 | 792.3 | 1220.9 | 792.3 | 0 | 0 | 0 | 0 | ||||||
| 5 | Klopper ,PA (Phillippus Arnoldus) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1454.6 | 1029.6 | 1451.4 | 1029.6 | 0 | 0 | 0 | 0 | ||||||
| 6 | Balooi ,A (Atlegang) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1223.9 | 798.9 | 1230 | 798.9 | 0 | 0 | 0 | 0 | ||||||
| 7 | Kruger ,B (Brenden) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1330.1 | 905.1 | 1328.5 | 905.1 | 0 | 0 | 0 | 0 | ||||||
| 8 | Van Rensburg ,C (Christiaan) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1202.7 | 777.7 | 1203.2 | 777.7 | 0 | 0 | 0 | 0 | ||||||
| 9 | Ndlovu ,F (Fezile) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 10 | Smith ,E (Eduan) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1259.3 | 834.3 | 1270.4 | 834.3 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|