PLAYER PAGE
Personal
Jantjies, GA (Gerald Anthony)
Chess SA id
174013947FIDE id
?Date of birth
1974-11-15 (Adult)Gender
MaleRegion
Cape Town (WCT)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-07-17Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1292.6 | 1300 | 1280.1 | 1300 |
| Raw rating | 1269 | 1300 | 1214.6 | 1300 |
| Weighted rating | 1292.6 | 1299.7 | 1280.1 | 1299.7 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 800 | 800 | 800 | 800 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 150.3 | 143.8 | 162.4 | 143.8 |
| Highest rating | 13002024-02-01 | 13002024-02-01 | 13002024-02-01 | 13002024-02-01 |
| Highest raw rating | 13002024-02-01 | 13002024-02-01 | 13002024-02-01 | 13002024-02-01 |
| Highest weighted rating | 1297.32025-08-01 | 1297.32025-08-01 | 1297.32025-08-01 | 1297.32025-08-01 |
| Highest weighted performance | 12002024-02-01 | 12002024-02-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | -1.9 | 0 | -5.7 | 0 |
| New rating | 1290.7 | 1300 | 1274.4 | 1300 |
| Analysis | ||||
| Rating | 1292.6 | 1300 | 1280.1 | 1300 |
| Raw rating | 1269 | 1300 | 1214.6 | 1300 |
| Weighted rating | 1292.6 | 1299.7 | 1280.1 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 800 | 800 | 800 | 800 |
| Max/Min rating change allowed | 150.3 | 143.8 | 162.4 | 143.8 |
| 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 | 1300 | 1214.6 | 1300 |
| New weighted rating | 1290.7 | 1300 | 1274.4 | 1300 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1290.7 | 1300 | 1274.4 | 1300 |
| Temp new rating +/- | -1.9 | 0 | -5.7 | 0 |
| Final new rating +/- | -1.9 | 0 | -5.7 | 0 |
| New rating | 1290.7 | 1300 | 1274.4 | 1300 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 800 | 800 | 800 | 800 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 7 | 0 | 7 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 16 | 9 | 7 | 0 |
| Games since | |||||||||||||||||
| Main7 | Standard0 | Rapid7 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | Adult | ||||||||||||||||
| Region | Cape Town (WCT) | ||||||||||||||||
| Province | Western Cape (WC) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Male | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| Adult | -1 | -1 | -1 | ||||||||||||||
| Adult 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 | 7 | 1 | 14.29 | -303.6 | 1362.6 | 1059 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 7 | 1 | 14.29 | -303.6 | 1362.6 | 1059 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 7 | 1 | 14.29 | -303.6 | 1362.6 | 1059 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 7 | 1 | 14.29 | -303.6 | 1362.6 | 1059 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1269 | 1300 | 1214.6 | 1300 |
| 2025-09-30 | 1269 | 1300 | 1214.6 | 1300 |
| 2025-09-01 | 1269 | 1300 | 1214.6 | 1300 |
| 2025-08-01 | 1300 | 1300 | 1300 | 1300 |
| 2025-07-01 | 1300 | 1300 | 1300 | 1300 |
| 2025-06-01 | 1300 | 1300 | 1300 | 1300 |
| 2025-05-01 | 1300 | 1300 | 1300 | 1300 |
| 2025-04-01 | 1300 | 1300 | 1300 | 1300 |
| 2025-03-01 | 1300 | 1300 | 1300 | 1300 |
| 2025-02-01 | 1300 | 1300 | 1300 | 1300 |
| 2025-01-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-12-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-11-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-10-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-09-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-08-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-07-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-09-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-05-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-04-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-03-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-02-01 | 1300 | 1300 | 1300 | 1300 |
| 2024-01-01 | 1300 | 1300 | 1300 | 1300 |
| 2023-12-01 | 1220 | 1220 | 1220 | 1220 |
Comming soon.
Tournaments
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kolano Rapid Open Turfloo Limpopo 2025 | 2025-07-17 | 2025-07-17 | Rapid | Capricorn (LCP) | 7 | 7 | 1 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kolano Rapid Open Turfloo Limpopo 2025 | 2025-07-17 | 2025-07-17 | Rapid | Capricorn (LCP) | 7 | 7 | 1 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentKolano Rapid Open Turfloo Limpopo 2025 | TournamentKolano Rapid Open Turfloo Limpopo 2025 | ||||||
| date2025-07-17 | rnd2 | typeRapid | result1 | date2025-07-17 | rnd2 | typeRapid | result1 | ||
| OpponentMolele, L (Lesedi) | OpponentMolele, L (Lesedi) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentKolano Rapid Open Turfloo Limpopo 2025 | TournamentKolano Rapid Open Turfloo Limpopo 2025 | ||||||
| date2025-07-17 | rnd2 | typeRapid | result1 | date2025-07-17 | rnd2 | typeRapid | result1 | ||
| OpponentMolele, L (Lesedi) | OpponentMolele, L (Lesedi) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentKolano Rapid Open Turfloo Limpopo 2025 | TournamentKolano Rapid Open Turfloo Limpopo 2025 | ||||||
| date2025-07-17 | rnd2 | typeRapid | result1 | date2025-07-17 | rnd2 | typeRapid | result1 | ||
| OpponentMolele, L (Lesedi) | OpponentMolele, L (Lesedi) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | TournamentKolano Rapid Open Turfloo Limpopo 2025 | TournamentKolano Rapid Open Turfloo Limpopo 2025 | ||||||
| date2025-07-17 | rnd2 | typeRapid | result1 | date2025-07-17 | rnd2 | typeRapid | result1 | ||
| OpponentMolele, L (Lesedi) | OpponentMolele, L (Lesedi) | ||||||||
| # | 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 | Moseamedi ,K (Kgomotso) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1268 | 843 | 0 | 0 | 1201.2 | 843 | 0 | 0 | ||||||
| 2 | Lehlogonolo ,S (Seopa) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1200 | 775 | 0 | 0 | 1200 | 775 | 0 | 0 | ||||||
| 3 | Molele ,L (Lesedi) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1574.1 | 1999.1 | 0 | 0 | 1359.7 | 1999.1 | 0 | 0 | ||||||
| 4 | Komane ,S (Sello) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1200 | 775 | 0 | 0 | 1200 | 775 | 0 | 0 | ||||||
| 5 | Mahomole ,TR (Tebogo Ramogo) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1767.2 | 1342.2 | 0 | 0 | 1817.2 | 1342.2 | 0 | 0 | ||||||
| 6 | Phogole ,M (Melyvn) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1328.6 | 903.6 | 0 | 0 | 1254 | 903.6 | 0 | 0 | ||||||
| 7 | Maphotho ,E (Emmanuel) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1200 | 775 | 0 | 0 | 1200 | 775 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|