PLAYER PAGE
Personal
Isaacs, A (Abubakar)
Chess SA id
178013191FIDE id
?Date of birth
1978-06-28 (Adult)Gender
MaleRegion
Cape Town (WCT)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-08-23Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1359 | 1368 | 1396 | 1424 |
| Raw rating | 1359 | 1368 | 1395.8 | 1424 |
| Weighted rating | 1322.2 | 1330.2 | 1396 | 1424 |
| Weighted performance | 1176.7 | 0 | 0 | 0 |
| Floor | 924 | 924 | 924 | 924 |
| K-factor | 32 | 32 | 32 | 32 |
| Min/Max rating change allowed | 132.2 | 130.5 | 125.5 | 120.5 |
| Highest rating | 14242020-01-01 | 14242020-01-01 | 14242020-01-01 | 14242024-02-01 |
| Highest raw rating | 14242020-01-01 | 14242020-01-01 | 14242024-02-01 | 14242024-02-01 |
| Highest weighted rating | 14242020-01-01 | 14242020-01-01 | 14242020-01-01 | 14242024-02-01 |
| Highest weighted performance | 12002020-01-01 | 12002020-01-01 | 12002020-01-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | -0.2 | 0 |
| New rating | 1359 | 1368 | 1395.8 | 1424 |
| Analysis | ||||
| Rating | 1359 | 1368 | 1396 | 1424 |
| Raw rating | 1359 | 1368 | 1395.8 | 1424 |
| Weighted rating | 1322.2 | 1330.2 | 1396 | |
| Weighted performance | 1176.7 | 0 | 0 | |
| K-factor | 32 | 32 | 32 | 32 |
| Floor | 924 | 924 | 924 | 924 |
| Max/Min rating change allowed | 132.2 | 130.5 | 125.5 | 120.5 |
| 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 | 1359 | 1368 | 1395.8 | 1424 |
| New weighted rating | 1325.1 | 1333.4 | 1395.6 | 1424 |
| New weighted performance | 1169.3 | 0 | 0 | 0 |
| Temp new rating | 1359 | 1368 | 1395.8 | 1424 |
| Temp new rating +/- | 0 | 0 | -0.2 | 0 |
| Final new rating +/- | 0 | 0 | -0.2 | 0 |
| New rating | 1359 | 1368 | 1395.8 | 1424 |
| New K-factor | 32 | 32 | 32 | 32 |
| New floor | 924 | 924 | 924 | 924 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 18 | 6 | 12 | 0 | |
| 6 | 0 | 6 | 0 | |
| 0 | 0 | 0 | 0 | |
| 6 | 6 | 0 | 0 | |
| 6 | 0 | 6 | 0 | |
| History | 50 | 12 | 24 | 14 |
| Games since | |||||||||||||||||
| Main24 | Standard6 | Rapid18 | 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 | 18 | 10.5 | 58.33 | 70.8 | 1277.5 | 1348.4 |
| Standard | 6 | 4.5 | 75 | 212.5 | 1311.6 | 1524.1 |
| Rapid | 12 | 6 | 50 | 0 | 1260.5 | 1260.5 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 36 | 13 | 36.11 | -118.1 | 1327.6 | 1209.5 |
| Standard | 12 | 4.5 | 37.5 | -106.2 | 1349.3 | 1243.1 |
| Rapid | 24 | 8.5 | 35.42 | -124 | 1316.7 | 1192.7 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1359 | 1368 | 1395.8 | 1424 |
| 2025-09-30 | 1318.9 | 1327 | 1395.8 | 1424 |
| 2025-09-01 | 1318.9 | 1327 | 1395.8 | 1424 |
| 2025-08-01 | 1318.9 | 1327 | 1395.8 | 1424 |
| 2025-07-01 | 1318.7 | 1327 | 1395.3 | 1424 |
| 2025-06-01 | 1318.5 | 1327 | 1394.5 | 1424 |
| 2025-05-01 | 1317.8 | 1327 | 1391.2 | 1424 |
| 2025-04-01 | 1318 | 1327 | 1393.4 | 1424 |
| 2025-03-01 | 1317.6 | 1327 | 1392.3 | 1424 |
| 2025-02-01 | 1316.6 | 1327 | 1389.1 | 1424 |
| 2025-01-01 | 1307 | 1327 | 1359.7 | 1424 |
| 2024-12-01 | 1307 | 1327 | 1359.7 | 1424 |
| 2024-11-01 | 1307 | 1327 | 1359.7 | 1424 |
| 2024-10-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-09-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-08-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-07-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-09-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-05-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-04-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-03-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-02-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2024-01-01 | 1328.2 | 1327 | 1424 | 1424 |
| 2023-12-01 | 1299.5 | 1313.6 | 1338.9 | 1424 |
Comming soon.
Tournaments
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Cape Town Chess Federation Club League 2025 (E) | 2025-08-16 | 2025-08-23 | Standard | Cape Town (WCT) | 6 | 6 | 4.5 | Yes | Analysis |
| 2 | Rylib Autumn Slam 2025 (Open) | 2025-04-26 | 2025-04-26 | Rapid | Cape Town (WCT) | 6 | 6 | 3 | Yes | Analysis |
| 3 | Rylib Autumn Slam 2025 (Open) | 2025-04-26 | 2025-04-26 | Rapid | Cape Town (WCT) | 6 | 6 | 3 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Cape Town Chess Federation Club League 2025 (E) | 2025-08-16 | 2025-08-23 | Standard | Cape Town (WCT) | 6 | 6 | 4.5 | Yes | Analysis |
| 2 | Rylib Autumn Slam 2025 (Open) | 2025-04-26 | 2025-04-26 | Rapid | Cape Town (WCT) | 6 | 6 | 3 | Yes | Analysis |
| 3 | Rylib Autumn Slam 2025 (Open) | 2025-04-26 | 2025-04-26 | Rapid | Cape Town (WCT) | 6 | 6 | 3 | Yes | Analysis |
| 4 | Spring Slam 2024 (B) | 2024-10-05 | 2024-10-05 | Rapid | Cape Town (WCT) | 6 | 6 | 2.5 | Yes | Analysis |
| 5 | Western Province Open 2022 (Advanced) | 2022-02-25 | 2022-02-27 | Standard | Cape Town (WCT) | 6 | 6 | 0 | Yes | Analysis |
| 6 | Summer Slam 2021 (Championship) | 2021-12-13 | 2021-12-13 | Rapid | Cape Town (WCT) | 7 | 6 | 0 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentSpring Slam 2024 | TournamentRylib Autumn Slam 2025 | ||||||
| date2024-10-05 | rnd4 | typeRapid | result1 | date2025-04-26 | rnd2 | typeRapid | result1 | ||
| OpponentAdams, R (Robert) | OpponentBessesen, S (Sigi) | ||||||||
| 2 | 4 | TournamentCape Town Chess Federation Club League 2025 | TournamentCape Town Chess Federation Club League 2025 | ||||||
| date2025-08-16 | rnd1 | typeStandard | result1 | date2025-08-23 | rnd4 | typeStandard | result1 | ||
| OpponentResnekov, O (Oliver) | OpponentMouton, M (Michelle) | ||||||||
| 3 | 1 | TournamentCape Town Chess Federation Club League 2025 | TournamentCape Town Chess Federation Club League 2025 | ||||||
| date2025-08-23 | rnd6 | typeStandard | result0.5 | date2025-08-23 | rnd6 | typeStandard | result0.5 | ||
| OpponentDe Klerk, HF (Heinrich Forbes) | OpponentDe Klerk, HF (Heinrich Forbes) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentSpring Slam 2024 | TournamentRylib Autumn Slam 2025 | ||||||
| date2024-10-05 | rnd4 | typeRapid | result1 | date2025-04-26 | rnd2 | typeRapid | result1 | ||
| OpponentAdams, R (Robert) | OpponentBessesen, S (Sigi) | ||||||||
| 2 | 1 | TournamentRylib Autumn Slam 2025 | TournamentRylib Autumn Slam 2025 | ||||||
| date2025-04-26 | rnd4 | typeRapid | result1 | date2025-04-26 | rnd4 | typeRapid | result1 | ||
| OpponentMziweni, S (Simehule) | OpponentMziweni, S (Simehule) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentRylib Autumn Slam 2025 | TournamentRylib Autumn Slam 2025 | ||||||
| date2025-04-26 | rnd1 | typeRapid | result1 | date2025-04-26 | rnd2 | typeRapid | result1 | ||
| OpponentVan Nelson, T (Tyrone) | OpponentBessesen, S (Sigi) | ||||||||
| 2 | 2 | TournamentSpring Slam 2024 | TournamentSpring Slam 2024 | ||||||
| date2024-10-05 | rnd4 | typeRapid | result1 | date2024-10-05 | rnd5 | typeRapid | result1 | ||
| OpponentAdams, R (Robert) | OpponentSmit, M (Mario) | ||||||||
| 3 | 1 | TournamentRylib Autumn Slam 2025 | TournamentRylib Autumn Slam 2025 | ||||||
| date2025-04-26 | rnd4 | typeRapid | result1 | date2025-04-26 | rnd4 | typeRapid | result1 | ||
| OpponentMziweni, S (Simehule) | OpponentMziweni, S (Simehule) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | TournamentRylib Autumn Slam 2025 | TournamentRylib Autumn Slam 2025 | ||||||
| date2025-04-26 | rnd1 | typeRapid | result1 | date2025-04-26 | rnd2 | typeRapid | result1 | ||
| OpponentVan Nelson, T (Tyrone) | OpponentBessesen, S (Sigi) | ||||||||
| 2 | 2 | TournamentSpring Slam 2024 | TournamentSpring Slam 2024 | ||||||
| date2024-10-05 | rnd4 | typeRapid | result1 | date2024-10-05 | rnd5 | typeRapid | result1 | ||
| OpponentAdams, R (Robert) | OpponentSmit, M (Mario) | ||||||||
| 3 | 1 | TournamentRylib Autumn Slam 2025 | TournamentRylib Autumn Slam 2025 | ||||||
| date2025-04-26 | rnd4 | typeRapid | result1 | date2025-04-26 | rnd4 | typeRapid | result1 | ||
| OpponentMziweni, S (Simehule) | OpponentMziweni, S (Simehule) | ||||||||
| # | 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 | Hartley ,A (Ameen) | 2 | 0 | -425 | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1418.2 | 993.2 | 1394.1 | 993.2 | 1267 | 993.2 | 0 | 0 | ||||||
| 2 | Goosen ,P (Pierre) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1216.2 | 791.2 | 1198 | 791.2 | 0 | 0 | 0 | 0 | ||||||
| 3 | Mouton ,M (Michelle) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 4 | Van Tonder ,W (Wium) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1467 | 1042 | 1420 | 1042 | 0 | 0 | 0 | 0 | ||||||
| 5 | Adams ,K (Kyle) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1399.8 | 974.8 | 1354.4 | 974.8 | 0 | 0 | 0 | 0 | ||||||
| 6 | Mabaya ,C (Casper) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1259.2 | 834.2 | 1261.2 | 834.2 | 0 | 0 | 0 | 0 | ||||||
| 7 | Smith ,J (Jody) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 8 | De Wit ,M (Marnus) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1549.5 | 1124.5 | 1528.9 | 1124.5 | 0 | 0 | 0 | 0 | ||||||
| 9 | De Klerk ,HF (Heinrich Forbes) | 1 | 0.5 | 0 | 1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1303.8 | 1303.8 | 1299.3 | 1303.8 | 0 | 0 | 0 | 0 | ||||||
| 10 | Bell ,A (Ayakha) | 1 | 0 | -425 | 0 | 0 | 0 | 1 | 0 | -425 | 0 | 0 | 0 |
| 1414.5 | 989.5 | 0 | 0 | 1222.7 | 989.5 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|

