PLAYER PAGE
Personal
Osman, Z (Zechariah)
Chess SA id
1120158752FIDE id
?Date of birth
2012-04-25 (U14)Gender
MaleRegion
Gert Sibande (MGS)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-08-08Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1300.1 | 1200 | 1359.8 | 1200 |
| Raw rating | 1300.1 | 1200 | 1359.8 | 1200 |
| Weighted rating | 1274.7 | 1200 | 1316.8 | 1200 |
| Weighted performance | 1152.1 | 0 | 1232.5 | 0 |
| Floor | 800.1 | 700 | 859.8 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 143.8 | 165.8 | 132 | 165.8 |
| Highest rating | 1437.92023-07-01 | 12002018-10-01 | 1543.82023-07-01 | 12002018-10-01 |
| Highest raw rating | 1300.12025-09-01 | 12002024-03-01 | 1359.82025-09-01 | 12002024-03-01 |
| Highest weighted rating | 1269.62025-09-01 | 12002018-10-01 | 1309.82025-07-01 | 12002018-10-01 |
| Highest weighted performance | 1437.92023-07-01 | 12002024-03-01 | 1543.82023-07-01 | 12002024-03-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1300.1 | 1200 | 1359.8 | 1200 |
| Analysis | ||||
| Rating | 1300.1 | 1200 | 1359.8 | 1200 |
| Raw rating | 1300.1 | 1200 | 1359.8 | 1200 |
| Weighted rating | 1274.7 | 1200 | 1316.8 | |
| Weighted performance | 1152.1 | 0 | 1232.5 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 800.1 | 700 | 859.8 | 700 |
| Max/Min rating change allowed | 143.8 | 165.8 | 132 | 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 | 1300.1 | 1200 | 1359.8 | 1200 |
| New weighted rating | 1277.1 | 1200 | 1320.6 | 1200 |
| New weighted performance | 1144.4 | 0 | 1224.2 | 0 |
| Temp new rating | 1300.1 | 1200 | 1359.8 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1300.1 | 1200 | 1359.8 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 800.1 | 700 | 859.8 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 5 | 0 | 5 | 0 | |
| 10 | 0 | 10 | 0 | |
| 10 | 0 | 10 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 25 | 0 | 25 | 0 |
| Games since | |||||||||||||||||
| Main15 | Standard0 | Rapid15 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U14 | ||||||||||||||||
| Region | Gert Sibande (MGS) | ||||||||||||||||
| Province | Mpumalanga (MP) | ||||||||||||||||
| 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 | 5 | 4 | 80 | 255 | 1273.1 | 1528.1 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 5 | 4 | 80 | 255 | 1273.1 | 1528.1 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 25 | 17.5 | 70 | 170 | 1236.1 | 1406.1 |
| Standard | 0 | 0 | 0 | 0 | 0 | 0 |
| Rapid | 25 | 17.5 | 70 | 170 | 1236.1 | 1406.1 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1300.1 | 1200 | 1359.8 | 1200 |
| 2025-09-30 | 1300.1 | 1200 | 1359.8 | 1200 |
| 2025-09-01 | 1300.1 | 1200 | 1359.8 | 1200 |
| 2025-08-01 | 1268 | 1200 | 1304.5 | 1200 |
| 2025-07-01 | 1268 | 1200 | 1304.5 | 1200 |
| 2025-06-01 | 1268 | 1200 | 1304.5 | 1200 |
| 2025-05-01 | 1268 | 1200 | 1304.1 | 1200 |
| 2025-04-01 | 1268 | 1200 | 1303.5 | 1200 |
| 2025-03-01 | 1268 | 1200 | 1302.5 | 1200 |
| 2025-02-01 | 1268 | 1200 | 1301.3 | 1200 |
| 2025-01-01 | 1268 | 1200 | 1300.1 | 1200 |
| 2024-12-01 | 1268 | 1200 | 1300.1 | 1200 |
| 2024-11-01 | 1268 | 1200 | 1300.1 | 1200 |
| 2024-10-01 | 1268 | 1200 | 1300.1 | 1200 |
| 2024-09-01 | 1268 | 1200 | 1300.1 | 1200 |
| 2024-08-01 | 1263.7 | 1200 | 1309.8 | 1200 |
| 2024-07-01 | 1263.7 | 1200 | 1309.8 | 1200 |
| 2024-09-01 | 1263.7 | 1200 | 1309.8 | 1200 |
| 2024-05-01 | 1263.7 | 1200 | 1309.8 | 1200 |
| 2024-04-01 | 1263.7 | 1200 | 1309.8 | 1200 |
| 2024-03-01 | 1263.7 | 1200 | 1309.8 | 1200 |
| 2024-02-01 | 1263.7 | 1200 | 1309.8 | 1200 |
| 2024-01-01 | 1263.7 | 1200 | 1309.8 | 1200 |
| 2023-12-01 | 1263.7 | 1200 | 1309.8 | 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 | Rookies Tournament Secunda 2025 (U13) | 2025-08-08 | 2025-08-08 | Rapid | Gert Sibande (MGS) | 5 | 5 | 4 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Rookies Tournament Secunda 2025 (U13) | 2025-08-08 | 2025-08-08 | Rapid | Gert Sibande (MGS) | 5 | 5 | 4 | Yes | Analysis |
| 2 | Top Schools Gert Sibande 2024 (U13) | 2024-08-16 | 2024-08-16 | Rapid | Gert Sibande (MGS) | 5 | 5 | 3 | Yes | Analysis |
| 3 | Govan Mbeki 2024 (U13) | 2024-08-02 | 2024-08-02 | Rapid | Gert Sibande (MGS) | 5 | 5 | 3 | Yes | Analysis |
| 4 | Govin Mbeki Teams Chess Tournament 2023 (U11) | 2023-08-18 | 2023-08-18 | Rapid | Gert Sibande (MGS) | 5 | 5 | 3.5 | Yes | Analysis |
| 5 | Hoëveldgroep 2023 (O11) | 2023-07-28 | 2023-07-28 | Rapid | Gert Sibande (MGS) | 5 | 5 | 4 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | TournamentHoëveldgroep 2023 | TournamentGovin Mbeki Teams Chess Tournament 2023 | ||||||
| date2023-07-28 | rnd3 | typeRapid | result1 | date2023-08-18 | rnd4 | typeRapid | result1 | ||
| OpponentHerbst, A (Anthony) | OpponentDu Toit, N (Nua) | ||||||||
| 2 | 4 | TournamentGovan Mbeki 2024 | TournamentTop Schools Gert Sibande 2024 | ||||||
| date2024-08-02 | rnd5 | typeRapid | result1 | date2024-08-16 | rnd3 | typeRapid | result1 | ||
| OpponentMpiti, T (Thekiso) | OpponentPhakathi, S (Siyanda) | ||||||||
| 3 | 3 | TournamentRookies Tournament Secunda 2025 | TournamentRookies Tournament Secunda 2025 | ||||||
| date2025-08-08 | rnd1 | typeRapid | result1 | date2025-08-08 | rnd3 | typeRapid | result1 | ||
| OpponentVan Niekerk, L (Lohan) | OpponentCoetzee, M (Markus) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | TournamentHoëveldgroep 2023 | TournamentGovin Mbeki Teams Chess Tournament 2023 | ||||||
| date2023-07-28 | rnd3 | typeRapid | result1 | date2023-08-18 | rnd4 | typeRapid | result1 | ||
| OpponentHerbst, A (Anthony) | OpponentDu Toit, N (Nua) | ||||||||
| 2 | 4 | TournamentGovan Mbeki 2024 | TournamentTop Schools Gert Sibande 2024 | ||||||
| date2024-08-02 | rnd5 | typeRapid | result1 | date2024-08-16 | rnd3 | typeRapid | result1 | ||
| OpponentMpiti, T (Thekiso) | OpponentPhakathi, S (Siyanda) | ||||||||
| 3 | 3 | TournamentRookies Tournament Secunda 2025 | TournamentRookies Tournament Secunda 2025 | ||||||
| date2025-08-08 | rnd1 | typeRapid | result1 | date2025-08-08 | rnd3 | typeRapid | result1 | ||
| OpponentVan Niekerk, L (Lohan) | OpponentCoetzee, M (Markus) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentHoëveldgroep 2023 | TournamentGovin Mbeki Teams Chess Tournament 2023 | ||||||
| date2023-07-28 | rnd3 | typeRapid | result1 | date2023-08-18 | rnd2 | typeRapid | result1 | ||
| OpponentHerbst, A (Anthony) | OpponentMtsweni, L (Lungelo) | ||||||||
| 2 | 4 | TournamentGovan Mbeki 2024 | TournamentTop Schools Gert Sibande 2024 | ||||||
| date2024-08-02 | rnd5 | typeRapid | result1 | date2024-08-16 | rnd3 | typeRapid | result1 | ||
| OpponentMpiti, T (Thekiso) | OpponentPhakathi, S (Siyanda) | ||||||||
| 3 | 3 | TournamentRookies Tournament Secunda 2025 | TournamentRookies Tournament Secunda 2025 | ||||||
| date2025-08-08 | rnd1 | typeRapid | result1 | date2025-08-08 | rnd3 | typeRapid | result1 | ||
| OpponentVan Niekerk, L (Lohan) | OpponentCoetzee, M (Markus) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentHoëveldgroep 2023 | TournamentGovin Mbeki Teams Chess Tournament 2023 | ||||||
| date2023-07-28 | rnd3 | typeRapid | result1 | date2023-08-18 | rnd2 | typeRapid | result1 | ||
| OpponentHerbst, A (Anthony) | OpponentMtsweni, L (Lungelo) | ||||||||
| 2 | 4 | TournamentGovan Mbeki 2024 | TournamentTop Schools Gert Sibande 2024 | ||||||
| date2024-08-02 | rnd5 | typeRapid | result1 | date2024-08-16 | rnd3 | typeRapid | result1 | ||
| OpponentMpiti, T (Thekiso) | OpponentPhakathi, S (Siyanda) | ||||||||
| 3 | 3 | TournamentRookies Tournament Secunda 2025 | TournamentRookies Tournament Secunda 2025 | ||||||
| date2025-08-08 | rnd1 | typeRapid | result1 | date2025-08-08 | rnd3 | typeRapid | result1 | ||
| OpponentVan Niekerk, L (Lohan) | OpponentCoetzee, M (Markus) | ||||||||
| # | 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 | Coetzee ,M (Markus) | 3 | 2.5 | 283.3 | 0 | 0 | 0 | 3 | 2.5 | 283.3 | 0 | 0 | 0 |
| 1280.5 | 1563.8 | 0 | 0 | 1342.2 | 1563.8 | 0 | 0 | ||||||
| 2 | Mtsweni ,L (Lungelo) | 3 | 1 | -141.7 | 0 | 0 | 0 | 3 | 1 | -141.7 | 0 | 0 | 0 |
| 1375.5 | 1233.8 | 0 | 0 | 1453.9 | 1233.8 | 0 | 0 | ||||||
| 3 | Shaij ,U (Uzayr Ali) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1200 | 1625 | 0 | 0 | 1200 | 1625 | 0 | 0 | ||||||
| 4 | Phakathi ,S (Siyanda) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1200 | 1625 | 0 | 0 | 1200 | 1625 | 0 | 0 | ||||||
| 5 | Mhlongo ,K (Khabelihle) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1218.3 | 793.3 | 0 | 0 | 1161.2 | 793.3 | 0 | 0 | ||||||
| 6 | Botha ,Z (Zak) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1246.6 | 1671.6 | 0 | 0 | 1262.2 | 1671.6 | 0 | 0 | ||||||
| 7 | Skhosana ,N (Nklakanipho) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1221 | 796 | 0 | 0 | 1238.9 | 796 | 0 | 0 | ||||||
| 8 | Van Niekerk ,L (Lohan) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1200.9 | 1625.9 | 0 | 0 | 1204 | 1625.9 | 0 | 0 | ||||||
| 9 | Mpiti ,T (Thekiso) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1210.6 | 1635.6 | 0 | 0 | 1216.9 | 1635.6 | 0 | 0 | ||||||
| 10 | Du Toit ,N (Nua) | 1 | 1 | 425 | 0 | 0 | 0 | 1 | 1 | 425 | 0 | 0 | 0 |
| 1242 | 1667 | 0 | 0 | 1271 | 1667 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|