PLAYER PAGE
Personal
Katz, Z (Zackary)
Chess SA id
1090306350FIDE id
?Date of birth
2009-03-17 (U18)Gender
MaleRegion
Johannesburg Metro (GJM)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-06-09Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1237.7 | 1200 | 1257.1 | 1200 |
| Raw rating | 1237.7 | 1200 | 1257.1 | 1200 |
| Weighted rating | 1218.4 | 1200 | 1235.6 | 1200 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 737.7 | 700 | 757.1 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 157.1 | 165.8 | 152.9 | 165.8 |
| Highest rating | 1548.52024-06-01 | 12002024-06-01 | 16302024-06-01 | 12002024-06-01 |
| Highest raw rating | 1237.72025-09-01 | 12002024-06-01 | 1257.12025-09-01 | 12002024-06-01 |
| Highest weighted rating | 1217.32024-10-01 | 12002024-06-01 | 1236.82024-10-01 | 12002024-06-01 |
| Highest weighted performance | 1548.52024-06-01 | 12002024-06-01 | 16302024-06-01 | 12002024-06-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1237.7 | 1200 | 1257.1 | 1200 |
| Analysis | ||||
| Rating | 1237.7 | 1200 | 1257.1 | 1200 |
| Raw rating | 1237.7 | 1200 | 1257.1 | 1200 |
| Weighted rating | 1218.4 | 1200 | 1235.6 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 737.7 | 700 | 757.1 | 700 |
| Max/Min rating change allowed | 157.1 | 165.8 | 152.9 | 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 | 1237.7 | 1200 | 1257.1 | 1200 |
| New weighted rating | 1220.4 | 1200 | 1238 | 1200 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1237.7 | 1200 | 1257.1 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1237.7 | 1200 | 1257.1 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 737.7 | 700 | 757.1 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 1 | 0 | 1 | 0 | |
| 2 | 0 | 2 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 3 | 0 | 3 | 0 |
| Games since | |||||||||||||||||
| Main3 | Standard0 | Rapid3 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U18 | ||||||||||||||||
| Region | Johannesburg Metro (GJM) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U18 | -1 | -1 | -1 | ||||||||||||||
| U18 Male | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U18 | -1 | -1 | -1 | ||||||||||||||
| U18 Male | -1 | -1 | -1 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U18 | -1 | -1 | -1 | ||||||||||||||
| U18 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U18 | -1 | -1 | -1 | ||||||||||||||
| U18 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 | 1 | 1 | 100 | 425 | 1410.6 | 1835.6 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 1 | 1 | 100 | 425 | 1410.6 | 1835.6 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 3 | 3 | 100 | 425 | 1270.2 | 1695.2 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 3 | 3 | 100 | 425 | 1270.2 | 1695.2 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1237.7 | 1200 | 1257.1 | 1200 |
| 2025-09-01 | 1237.7 | 1200 | 1257.1 | 1200 |
| 2025-08-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2025-07-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2025-06-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2025-05-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2025-04-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2025-03-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2025-02-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2025-01-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2024-12-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2024-11-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2024-10-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2024-09-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2024-08-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2024-07-01 | 1217.3 | 1200 | 1236.8 | 1200 |
| 2024-06-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-08-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-04-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-03-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-02-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-01-01 | 1200 | 1200 | 1200 | 1200 |
| 2023-12-01 | 1200 | 1200 | 1200 | 1200 |
| 2023-11-01 | 1200 | 1200 | 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 | JCC - SAHETI Chess League 2025 | 2025-05-12 | 2025-06-09 | Rapid | Johannesburg Metro (GJM) | 5 | 1 | 1 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | JCC - SAHETI Chess League 2025 | 2025-05-12 | 2025-06-09 | Rapid | Johannesburg Metro (GJM) | 5 | 1 | 1 | Yes | Analysis |
| 2 | JCC SAHETI High Schools League Round Robin 2024 | 2024-05-20 | 2024-06-10 | Rapid | Johannesburg Metro (GJM) | 7 | 2 | 2 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentJCC SAHETI High Schools League Round Robin 2024 | TournamentJCC - SAHETI Chess League 2025 | ||||||
| date2024-05-20 | rnd2 | typeRapid | result1 | date2025-05-19 | rnd2 | typeRapid | result1 | ||
| OpponentHenning, S (Siān) | OpponentFroom, D (David) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentJCC SAHETI High Schools League Round Robin 2024 | TournamentJCC - SAHETI Chess League 2025 | ||||||
| date2024-05-20 | rnd2 | typeRapid | result1 | date2025-05-19 | rnd2 | typeRapid | result1 | ||
| OpponentHenning, S (Siān) | OpponentFroom, D (David) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentJCC SAHETI High Schools League Round Robin 2024 | TournamentJCC - SAHETI Chess League 2025 | ||||||
| date2024-05-20 | rnd2 | typeRapid | result1 | date2025-05-19 | rnd2 | typeRapid | result1 | ||
| OpponentHenning, S (Siān) | OpponentFroom, D (David) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentJCC SAHETI High Schools League Round Robin 2024 | TournamentJCC - SAHETI Chess League 2025 | ||||||
| date2024-05-20 | rnd2 | typeRapid | result1 | date2025-05-19 | rnd2 | typeRapid | result1 | ||
| OpponentHenning, S (Siān) | OpponentFroom, D (David) | ||||||||
| # | 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 | Joffe ,C (Cody) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1200 | 1625 | 0 | 0 | 1200 | 1625 | 0 | 0 | ||||||
| 2 | Froom ,D (David) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1410.6 | 1835.6 | 0 | 0 | 1254.8 | 1835.6 | 0 | 0 | ||||||
| 3 | Henning ,S (Siān) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1200 | 1625 | 0 | 0 | 1200 | 1625 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|