PLAYER PAGE
Personal
Thomas, J (Jenna)
Chess SA id
2100156312FIDE id
?Date of birth
2010-06-22 (U16)Gender
FemaleRegion
West Rand (GWR)Citizen
RSATitles
Chess SA registered
NoLast active game
2025-09-27Personal details last changed
1900-01-01Junior GPX Games
30Junior GPX Points
1198.6| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1243.5 | 1243.7 | 1200 | 1200 |
| Raw rating | 1227.1 | 1222.3 | 1200 | 1200 |
| Weighted rating | 1243.5 | 1243.7 | 1200 | 1200 |
| Weighted performance | 1151.7 | 1147.6 | 0 | 0 |
| Floor | 801.9 | 821 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 159.5 | 160.6 | 165.8 | 165.8 |
| Highest rating | 15472023-07-01 | 1546.32023-07-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 1301.92024-02-01 | 13212024-02-01 | 12002024-02-01 | 12002024-02-01 |
| Highest weighted rating | 1301.92024-09-01 | 13212024-07-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 15472023-07-01 | 1546.32023-07-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | -2.2 | -2.9 | 0 | 0 |
| New rating | 1241.3 | 1240.8 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1243.5 | 1243.7 | 1200 | 1200 |
| Raw rating | 1227.1 | 1222.3 | 1200 | 1200 |
| Weighted rating | 1243.5 | 1243.7 | 1200 | |
| Weighted performance | 1151.7 | 1147.6 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 801.9 | 821 | 700 | 700 |
| Max/Min rating change allowed | 159.5 | 160.6 | 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 | 1227.1 | 1222.3 | 1200 | 1200 |
| New weighted rating | 1241.3 | 1240.8 | 1200 | 1200 |
| New weighted performance | 1144.8 | 1140.7 | 0 | 0 |
| Temp new rating | 1241.3 | 1240.8 | 1200 | 1200 |
| Temp new rating +/- | -2.2 | -2.9 | 0 | 0 |
| Final new rating +/- | -2.2 | -2.9 | 0 | 0 |
| New rating | 1241.3 | 1240.8 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 801.9 | 821 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 30 | 30 | 0 | 0 | |
| 20 | 20 | 0 | 0 | |
| 10 | 10 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 60 | 60 | 0 | 0 |
| Games since | |||||||||||||||||
| Main50 | Standard50 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Female | ||||||||||||||||
| Age group | U16 | ||||||||||||||||
| Region | West Rand (GWR) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | 3773 | 1249 | 106 | ||||||||||||||
| Female | 846 | 285 | 26 | ||||||||||||||
| U16 | 615 | 208 | 17 | ||||||||||||||
| U16 Female | 177 | 64 | 8 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 3702 | 1327 | 131 | ||||||||||||||
| Female | 825 | 291 | 30 | ||||||||||||||
| U16 | 613 | 220 | 19 | ||||||||||||||
| U16 Female | 168 | 62 | 9 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Female | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Female | -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 | 30 | 11.5 | 38.33 | -99.2 | 1301.4 | 1202.2 |
| Standard | 30 | 11.5 | 38.33 | -99.2 | 1301.4 | 1202.2 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 60 | 27.5 | 45.83 | -35.4 | 1249 | 1213.6 |
| Standard | 60 | 27.5 | 45.83 | -35.4 | 1249 | 1213.6 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1227.1 | 1222.3 | 1200 | 1200 |
| 2025-09-30 | 1223.5 | 1219.4 | 1200 | 1200 |
| 2025-09-01 | 1249.2 | 1250.7 | 1200 | 1200 |
| 2025-08-01 | 1249.2 | 1250.7 | 1200 | 1200 |
| 2025-07-01 | 1286.2 | 1292.8 | 1200 | 1200 |
| 2025-06-01 | 1291.8 | 1301.1 | 1200 | 1200 |
| 2025-05-01 | 1248.7 | 1251.7 | 1200 | 1200 |
| 2025-04-01 | 1248.7 | 1251.7 | 1200 | 1200 |
| 2025-03-01 | 1247.6 | 1250.4 | 1200 | 1200 |
| 2025-02-01 | 1244.6 | 1246.6 | 1200 | 1200 |
| 2025-01-01 | 1168.1 | 1148.9 | 1200 | 1200 |
| 2024-12-01 | 1168.1 | 1148.9 | 1200 | 1200 |
| 2024-11-01 | 1168.1 | 1148.9 | 1200 | 1200 |
| 2024-10-01 | 1168.1 | 1148.9 | 1200 | 1200 |
| 2024-09-01 | 1257.4 | 1259.8 | 1200 | 1200 |
| 2024-08-01 | 1257.4 | 1259.8 | 1200 | 1200 |
| 2024-07-01 | 1301 | 1316 | 1200 | 1200 |
| 2024-09-01 | 1301 | 1316 | 1200 | 1200 |
| 2024-05-01 | 1301.9 | 1321 | 1200 | 1200 |
| 2024-04-01 | 1301.9 | 1321 | 1200 | 1200 |
| 2024-03-01 | 1301.9 | 1321 | 1200 | 1200 |
| 2024-02-01 | 1301.9 | 1321 | 1200 | 1200 |
| 2024-01-01 | 1301.9 | 1321 | 1200 | 1200 |
| 2023-12-01 | 1301.9 | 1321 | 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 Gauteng Schools Provincial Individual Chess Championship (U15 Girls) | 2025-09-27 | 2025-09-27 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 2 | West Rand Trials 2025 (U16) | 2025-09-06 | 2025-09-06 | Standard | West Rand (GWR) | 5 | 5 | 1.5 | Yes | Analysis |
| 3 | 2025 D2 Schools League Finals (U15) | 2025-07-26 | 2025-07-26 | Standard | West Rand (GWR) | 5 | 5 | 1 | Yes | Analysis |
| 4 | West Rand Open 2.0 2025 (Rooks) | 2025-06-07 | 2025-06-07 | Standard | West Rand (GWR) | 5 | 5 | 2 | Yes | Analysis |
| 5 | 2025 D2 Schools Individuals (U15 Girls) | 2025-05-10 | 2025-05-10 | Standard | West Rand (GWR) | 5 | 5 | 4 | Yes | Analysis |
| 6 | 2025 West Rand Open (Rooks) | 2025-02-08 | 2025-02-08 | Standard | West Rand (GWR) | 5 | 5 | 1 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Gauteng Schools Provincial Individual Chess Championship (U15 Girls) | 2025-09-27 | 2025-09-27 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 2 | West Rand Trials 2025 (U16) | 2025-09-06 | 2025-09-06 | Standard | West Rand (GWR) | 5 | 5 | 1.5 | Yes | Analysis |
| 3 | 2025 D2 Schools League Finals (U15) | 2025-07-26 | 2025-07-26 | Standard | West Rand (GWR) | 5 | 5 | 1 | Yes | Analysis |
| 4 | West Rand Open 2.0 2025 (Rooks) | 2025-06-07 | 2025-06-07 | Standard | West Rand (GWR) | 5 | 5 | 2 | Yes | Analysis |
| 5 | 2025 D2 Schools Individuals (U15 Girls) | 2025-05-10 | 2025-05-10 | Standard | West Rand (GWR) | 5 | 5 | 4 | Yes | Analysis |
| 6 | 2025 West Rand Open (Rooks) | 2025-02-08 | 2025-02-08 | Standard | West Rand (GWR) | 5 | 5 | 1 | Yes | Analysis |
| 7 | 2024 West Rand Trials (U16) | 2024-09-07 | 2024-09-07 | Standard | West Rand (GWR) | 5 | 5 | 1 | Yes | Analysis |
| 8 | Gauteng Schools Individuals Finals 2024 (U15 Girls) | 2024-08-17 | 2024-08-17 | Standard | Ekurhuleni (GE) | 5 | 5 | 2 | Yes | Analysis |
| 9 | D2 School League Finals 2024 (U15) | 2024-07-20 | 2024-07-20 | Standard | West Rand (GWR) | 5 | 5 | 2 | Yes | Analysis |
| 10 | 2024 D2 Schools Individuals (U15 Girls) | 2024-05-04 | 2024-05-04 | Standard | West Rand (GWR) | 5 | 5 | 3 | Yes | Analysis |
| 11 | D2 School League Finals 2023 (U13 Girls) | 2023-07-22 | 2023-07-22 | Standard | West Rand (GWR) | 5 | 5 | 5 | Yes | Analysis |
| 12 | D2 Schools Individuals 2023 (U13 Girls) | 2023-05-13 | 2023-05-13 | Standard | West Rand (GWR) | 5 | 5 | 3 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | TournamentD2 School League Finals 2023 | Tournament2024 D2 Schools Individuals | ||||||
| date2023-07-22 | rnd1 | typeStandard | result1 | date2024-05-04 | rnd2 | typeStandard | result1 | ||
| OpponentLabuschagne, M (Mila) | OpponentWansi, R (Rebecca Nathalie) | ||||||||
| 2 | 5 | Tournament2025 D2 Schools Individuals | TournamentWest Rand Open 2.0 2025 | ||||||
| date2025-05-10 | rnd2 | typeStandard | result1 | date2025-06-07 | rnd1 | typeStandard | result1 | ||
| OpponentMabiya, F (Faith) | OpponentViljoen, J (Johandre) | ||||||||
| 3 | 3 | TournamentD2 Schools Individuals 2023 | TournamentD2 Schools Individuals 2023 | ||||||
| date2023-05-13 | rnd1 | typeStandard | result1 | date2023-05-13 | rnd3 | typeStandard | result1 | ||
| OpponentBasson, J (Janelda) | OpponentChitsamba, L (Liezel) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | TournamentD2 School League Finals 2023 | Tournament2024 D2 Schools Individuals | ||||||
| date2023-07-22 | rnd1 | typeStandard | result1 | date2024-05-04 | rnd2 | typeStandard | result1 | ||
| OpponentLabuschagne, M (Mila) | OpponentWansi, R (Rebecca Nathalie) | ||||||||
| 2 | 5 | Tournament2025 D2 Schools Individuals | TournamentWest Rand Open 2.0 2025 | ||||||
| date2025-05-10 | rnd2 | typeStandard | result1 | date2025-06-07 | rnd1 | typeStandard | result1 | ||
| OpponentMabiya, F (Faith) | OpponentViljoen, J (Johandre) | ||||||||
| 3 | 3 | TournamentD2 Schools Individuals 2023 | TournamentD2 Schools Individuals 2023 | ||||||
| date2023-05-13 | rnd1 | typeStandard | result1 | date2023-05-13 | rnd3 | typeStandard | result1 | ||
| OpponentBasson, J (Janelda) | OpponentChitsamba, L (Liezel) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | TournamentD2 School League Finals 2023 | Tournament2024 D2 Schools Individuals | ||||||
| date2023-07-22 | rnd1 | typeStandard | result1 | date2024-05-04 | rnd2 | typeStandard | result1 | ||
| OpponentLabuschagne, M (Mila) | OpponentWansi, R (Rebecca Nathalie) | ||||||||
| 2 | 5 | Tournament2025 D2 Schools Individuals | TournamentWest Rand Open 2.0 2025 | ||||||
| date2025-05-10 | rnd2 | typeStandard | result1 | date2025-06-07 | rnd1 | typeStandard | result1 | ||
| OpponentMabiya, F (Faith) | OpponentViljoen, J (Johandre) | ||||||||
| 3 | 3 | TournamentD2 Schools Individuals 2023 | TournamentD2 Schools Individuals 2023 | ||||||
| date2023-05-13 | rnd1 | typeStandard | result1 | date2023-05-13 | rnd3 | typeStandard | result1 | ||
| OpponentBasson, J (Janelda) | OpponentChitsamba, L (Liezel) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 7 | TournamentD2 School League Finals 2023 | Tournament2024 D2 Schools Individuals | ||||||
| date2023-07-22 | rnd1 | typeStandard | result1 | date2024-05-04 | rnd2 | typeStandard | result1 | ||
| OpponentLabuschagne, M (Mila) | OpponentWansi, R (Rebecca Nathalie) | ||||||||
| 2 | 5 | Tournament2025 D2 Schools Individuals | TournamentWest Rand Open 2.0 2025 | ||||||
| date2025-05-10 | rnd2 | typeStandard | result1 | date2025-06-07 | rnd1 | typeStandard | result1 | ||
| OpponentMabiya, F (Faith) | OpponentViljoen, J (Johandre) | ||||||||
| 3 | 3 | TournamentD2 Schools Individuals 2023 | TournamentD2 Schools Individuals 2023 | ||||||
| date2023-05-13 | rnd1 | typeStandard | result1 | date2023-05-13 | rnd3 | typeStandard | result1 | ||
| OpponentBasson, J (Janelda) | OpponentChitsamba, L (Liezel) | ||||||||
| # | 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 | Msiza ,A (Ayanda Ntsakiso) | 3 | 0 | -425 | 3 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1387.7 | 962.7 | 1353.9 | 962.7 | 0 | 0 | 0 | 0 | ||||||
| 2 | Pretorius ,C (Chanmari) | 2 | 0.5 | -212.5 | 2 | 0.5 | -212.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1202.3 | 989.8 | 1202 | 989.8 | 0 | 0 | 0 | 0 | ||||||
| 3 | Tshilambavhunwa ,S (Sebabatso) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1188 | 1613 | 1190.1 | 1613 | 0 | 0 | 0 | 0 | ||||||
| 4 | Miya ,MT (Minentle Tshegofatso) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1556.8 | 1131.8 | 1551.9 | 1131.8 | 0 | 0 | 0 | 0 | ||||||
| 5 | Monare ,O (Oratilwe) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1406.7 | 981.7 | 1403.8 | 981.7 | 0 | 0 | 0 | 0 | ||||||
| 6 | Methani ,B (Busisiwe) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1204.5 | 1629.5 | 1206.5 | 1629.5 | 0 | 0 | 0 | 0 | ||||||
| 7 | Konopi ,K (Keaobaka) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 967.9 | 542.9 | 955 | 542.9 | 0 | 0 | 0 | 0 | ||||||
| 8 | Pienaar ,C (Camilla) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1143.3 | 1568.3 | 1132.4 | 1568.3 | 0 | 0 | 0 | 0 | ||||||
| 9 | Viljoen ,J (Johandre) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1411.6 | 1836.6 | 1409.3 | 1836.6 | 0 | 0 | 0 | 0 | ||||||
| 10 | Barnard ,A (Anjanka) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1315 | 1740 | 1303.3 | 1740 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|