PLAYER PAGE
Personal
Erasmus, J (Jacobus)
Chess SA id
1160303473FIDE id
?Date of birth
2016-08-26 (U10)Gender
MaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-08-10Personal details last changed
1900-01-01Junior GPX Games
31Junior GPX Points
1374.7| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1388.8 | 1386.5 | 1200 | 1200 |
| Raw rating | 1388.8 | 1386.5 | 1200 | 1200 |
| Weighted rating | 1326 | 1324.7 | 1200 | 1200 |
| Weighted performance | 1308 | 1309 | 0 | 0 |
| Floor | 948.5 | 949.6 | 700 | 700 |
| K-factor | 32 | 32 | 36 | 36 |
| Min/Max rating change allowed | 126.7 | 127.1 | 165.8 | 165.8 |
| Highest rating | 1448.52025-06-01 | 1449.62025-06-01 | 12002024-05-01 | 12002024-05-01 |
| Highest raw rating | 1448.52025-06-01 | 1449.62025-06-01 | 12002024-05-01 | 12002024-05-01 |
| Highest weighted rating | 1307.22025-09-01 | 1306.12025-09-01 | 12002024-05-01 | 12002024-05-01 |
| Highest weighted performance | 1448.52025-06-01 | 1449.62024-10-01 | 12002024-05-01 | 12002024-05-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1388.8 | 1386.5 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1388.8 | 1386.5 | 1200 | 1200 |
| Raw rating | 1388.8 | 1386.5 | 1200 | 1200 |
| Weighted rating | 1326 | 1324.7 | 1200 | |
| Weighted performance | 1308 | 1309 | 0 | |
| K-factor | 32 | 32 | 36 | 36 |
| Floor | 948.5 | 949.6 | 700 | 700 |
| Max/Min rating change allowed | 126.7 | 127.1 | 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 | 1388.8 | 1386.5 | 1200 | 1200 |
| New weighted rating | 1334.5 | 1333 | 1200 | 1200 |
| New weighted performance | 1300.1 | 1301 | 0 | 0 |
| Temp new rating | 1388.8 | 1386.5 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1388.8 | 1386.5 | 1200 | 1200 |
| New K-factor | 32 | 32 | 36 | 36 |
| New floor | 948.5 | 949.6 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 27 | 27 | 0 | 0 | |
| 24 | 24 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 51 | 51 | 0 | 0 |
| Games since | |||||||||||||||||
| Main51 | Standard51 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U10 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | 2315 | 812 | 292 | ||||||||||||||
| Male | 1877 | 647 | 231 | ||||||||||||||
| U10 | 161 | 71 | 28 | ||||||||||||||
| U10 Male | 138 | 66 | 26 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 2252 | 845 | 319 | ||||||||||||||
| Male | 1826 | 680 | 252 | ||||||||||||||
| U10 | 157 | 74 | 31 | ||||||||||||||
| U10 Male | 134 | 67 | 28 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U10 | -1 | -1 | -1 | ||||||||||||||
| U10 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U10 | -1 | -1 | -1 | ||||||||||||||
| U10 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 | 27 | 17.5 | 64.81 | 125.9 | 1287 | 1413 |
| Standard | 27 | 17.5 | 64.81 | 125.9 | 1287 | 1413 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 51 | 31 | 60.78 | 91.7 | 1253.4 | 1345.1 |
| Standard | 51 | 31 | 60.78 | 91.7 | 1253.4 | 1345.1 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1388.8 | 1386.5 | 1200 | 1200 |
| 2025-09-30 | 1388.8 | 1386.5 | 1200 | 1200 |
| 2025-09-01 | 1388.8 | 1386.5 | 1200 | 1200 |
| 2025-08-01 | 1406.1 | 1403.9 | 1200 | 1200 |
| 2025-07-01 | 1406.1 | 1403.9 | 1200 | 1200 |
| 2025-06-01 | 1448.5 | 1449.6 | 1200 | 1200 |
| 2025-05-01 | 1349.7 | 1352 | 1200 | 1200 |
| 2025-04-01 | 1297.3 | 1294.4 | 1200 | 1200 |
| 2025-03-01 | 1297.3 | 1294.4 | 1200 | 1200 |
| 2025-02-01 | 1297.3 | 1294.4 | 1200 | 1200 |
| 2025-01-01 | 1297.3 | 1294.4 | 1200 | 1200 |
| 2024-12-01 | 1297.3 | 1294.4 | 1200 | 1200 |
| 2024-11-01 | 1297.3 | 1294.4 | 1200 | 1200 |
| 2024-10-01 | 1229.1 | 1233.2 | 1200 | 1200 |
| 2024-09-01 | 1229.1 | 1233.2 | 1200 | 1200 |
| 2024-08-01 | 1219.2 | 1222.4 | 1200 | 1200 |
| 2024-07-01 | 1177.4 | 1172 | 1200 | 1200 |
| 2024-09-01 | 1177.4 | 1172 | 1200 | 1200 |
| 2024-05-01 | 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 |
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 Etienne Lewis Closed Chess Tournament (U10) | 2025-08-08 | 2025-08-10 | Standard | Tshwane (GTP) | 7 | 7 | 3.5 | Yes | Analysis |
| 2 | 2025 Elise Steenkamp Open Chess Tournament (Knight) | 2025-06-14 | 2025-06-15 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 3 | 2025 Tshwane North School District CLOSED Individual Chess Championship (U9 Open) | 2025-05-24 | 2025-05-24 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 4 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U9 Open) | 2025-05-10 | 2025-05-10 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 5 | 2025 Mid Gauteng Open Chess Tournament (U10) | 2025-04-12 | 2025-04-12 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Etienne Lewis Closed Chess Tournament (U10) | 2025-08-08 | 2025-08-10 | Standard | Tshwane (GTP) | 7 | 7 | 3.5 | Yes | Analysis |
| 2 | 2025 Elise Steenkamp Open Chess Tournament (Knight) | 2025-06-14 | 2025-06-15 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 3 | 2025 Tshwane North School District CLOSED Individual Chess Championship (U9 Open) | 2025-05-24 | 2025-05-24 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 4 | 2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 (U9 Open) | 2025-05-10 | 2025-05-10 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 5 | 2025 Mid Gauteng Open Chess Tournament (U10) | 2025-04-12 | 2025-04-12 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 6 | Gauteng Top Schools 2024 (Primary Reserves) | 2024-10-04 | 2024-10-04 | Standard | Ekurhuleni (GE) | 5 | 4 | 3 | Yes | Analysis |
| 7 | 2024 Tshwane North School District Team League Finals (U9) | 2024-08-03 | 2024-08-03 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 8 | 2024 Tshwane North School District Cluster 4 & 5 Team League (U9) | 2024-07-20 | 2024-07-20 | Standard | Tshwane (GTP) | 5 | 5 | 4 | Yes | Analysis |
| 9 | Menlopark Open Chess Tournament 2024 (U10) | 2024-07-13 | 2024-07-13 | Standard | Tshwane (GTP) | 5 | 5 | 1.5 | Yes | Analysis |
| 10 | District 3 Cluster 4 and 5 Individuals 2024 (U9) | 2024-05-04 | 2024-05-04 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | Tournament2025 Tshwane North School District CLOSED Individual Chess Championship | ||||||
| date2025-05-10 | rnd3 | typeStandard | result1 | date2025-05-24 | rnd3 | typeStandard | result1 | ||
| OpponentDe Kamper, D (Darius) | OpponentMostert, M (Matthew) | ||||||||
| 2 | 5 | Tournament2024 Tshwane North School District Team League Finals | TournamentGauteng Top Schools 2024 | ||||||
| date2024-08-03 | rnd4 | typeStandard | result1 | date2024-10-04 | rnd3 | typeStandard | result1 | ||
| OpponentDe Klerk, E (Elri) | OpponentMathaba, J (Junior) | ||||||||
| 3 | 3 | Tournament2025 Tshwane North School District CLOSED Individual Chess Championship | Tournament2025 Elise Steenkamp Open Chess Tournament | ||||||
| date2025-05-24 | rnd5 | typeStandard | result1 | date2025-06-14 | rnd2 | typeStandard | result1 | ||
| OpponentWait, M (Matthew) | OpponentWestermann, Z (Zelri) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | Tournament2025 Tshwane North School District CLOSED Individual Chess Championship | ||||||
| date2025-05-10 | rnd3 | typeStandard | result1 | date2025-05-24 | rnd3 | typeStandard | result1 | ||
| OpponentDe Kamper, D (Darius) | OpponentMostert, M (Matthew) | ||||||||
| 2 | 5 | Tournament2024 Tshwane North School District Team League Finals | TournamentGauteng Top Schools 2024 | ||||||
| date2024-08-03 | rnd4 | typeStandard | result1 | date2024-10-04 | rnd3 | typeStandard | result1 | ||
| OpponentDe Klerk, E (Elri) | OpponentMathaba, J (Junior) | ||||||||
| 3 | 3 | Tournament2025 Tshwane North School District CLOSED Individual Chess Championship | Tournament2025 Elise Steenkamp Open Chess Tournament | ||||||
| date2025-05-24 | rnd5 | typeStandard | result1 | date2025-06-14 | rnd2 | typeStandard | result1 | ||
| OpponentWait, M (Matthew) | OpponentWestermann, Z (Zelri) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | Tournament2025 Tshwane North School District CLOSED Individual Chess Championship | ||||||
| date2025-05-10 | rnd3 | typeStandard | result1 | date2025-05-24 | rnd3 | typeStandard | result1 | ||
| OpponentDe Kamper, D (Darius) | OpponentMostert, M (Matthew) | ||||||||
| 2 | 5 | Tournament2024 Tshwane North School District Team League Finals | TournamentGauteng Top Schools 2024 | ||||||
| date2024-08-03 | rnd4 | typeStandard | result1 | date2024-10-04 | rnd3 | typeStandard | result1 | ||
| OpponentDe Klerk, E (Elri) | OpponentMathaba, J (Junior) | ||||||||
| 3 | 3 | Tournament2025 Tshwane North School District CLOSED Individual Chess Championship | Tournament2025 Elise Steenkamp Open Chess Tournament | ||||||
| date2025-05-24 | rnd5 | typeStandard | result1 | date2025-06-14 | rnd2 | typeStandard | result1 | ||
| OpponentWait, M (Matthew) | OpponentWestermann, Z (Zelri) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | Tournament2025 Tshwane North School District CLOSED Individual Championships Cluster 4&5 | Tournament2025 Tshwane North School District CLOSED Individual Chess Championship | ||||||
| date2025-05-10 | rnd3 | typeStandard | result1 | date2025-05-24 | rnd3 | typeStandard | result1 | ||
| OpponentDe Kamper, D (Darius) | OpponentMostert, M (Matthew) | ||||||||
| 2 | 5 | Tournament2024 Tshwane North School District Team League Finals | TournamentGauteng Top Schools 2024 | ||||||
| date2024-08-03 | rnd4 | typeStandard | result1 | date2024-10-04 | rnd3 | typeStandard | result1 | ||
| OpponentDe Klerk, E (Elri) | OpponentMathaba, J (Junior) | ||||||||
| 3 | 3 | Tournament2025 Tshwane North School District CLOSED Individual Chess Championship | Tournament2025 Elise Steenkamp Open Chess Tournament | ||||||
| date2025-05-24 | rnd5 | typeStandard | result1 | date2025-06-14 | rnd2 | typeStandard | result1 | ||
| OpponentWait, M (Matthew) | OpponentWestermann, Z (Zelri) | ||||||||
| # | 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 | Dialer ,F (Franz) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1219.1 | 1644.1 | 1222.7 | 1644.1 | 0 | 0 | 0 | 0 | ||||||
| 2 | Viljoen ,J (Jayden Johan) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1504.2 | 1079.2 | 1505.3 | 1079.2 | 0 | 0 | 0 | 0 | ||||||
| 3 | Westermann ,Z (Zelri) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1287.4 | 1712.4 | 1290.1 | 1712.4 | 0 | 0 | 0 | 0 | ||||||
| 4 | Krog ,R (Ruan) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1163.7 | 1163.7 | 1176.6 | 1163.7 | 0 | 0 | 0 | 0 | ||||||
| 5 | Swart ,E (Eben) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1284.8 | 859.8 | 1276.2 | 859.8 | 0 | 0 | 0 | 0 | ||||||
| 6 | Sahoo ,S (Shaurya) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1532.4 | 1957.4 | 1531.8 | 1957.4 | 0 | 0 | 0 | 0 | ||||||
| 7 | Prinsloo ,E (Elsje) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1136.9 | 1561.9 | 1121.6 | 1561.9 | 0 | 0 | 0 | 0 | ||||||
| 8 | Dekker ,P (Pd) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 9 | Mostert ,M (Matthew) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1278.4 | 1703.4 | 1273.8 | 1703.4 | 0 | 0 | 0 | 0 | ||||||
| 10 | Malikebu ,S (Solomzi) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1281.2 | 856.2 | 1263.1 | 856.2 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|