PLAYER PAGE
Personal
Roets, J (Josias)
Chess SA id
1140154138FIDE id
?Date of birth
2014-10-24 (U12)Gender
MaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
YesLast active game
2025-08-15Personal details last changed
1900-01-01Junior GPX Games
35Junior GPX Points
1128.6| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1115.1 | 1111.9 | 1200 | 1200 |
| Raw rating | 1096.2 | 1094.6 | 1200 | 1200 |
| Weighted rating | 1115.1 | 1111.9 | 1200 | 1200 |
| Weighted performance | 1071.7 | 1069.2 | 0 | 0 |
| Floor | 700 | 700 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 192.2 | 192.7 | 165.8 | 165.8 |
| Highest rating | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 12002019-12-01 | 12002019-12-01 | 12002024-02-01 | 12002024-02-01 |
| Highest weighted rating | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 12002019-12-01 | 12002019-12-01 | 12002024-02-01 | 12002024-02-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | -2.2 | -1.9 | 0 | 0 |
| New rating | 1112.9 | 1110 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1115.1 | 1111.9 | 1200 | 1200 |
| Raw rating | 1096.2 | 1094.6 | 1200 | 1200 |
| Weighted rating | 1115.1 | 1111.9 | 1200 | |
| Weighted performance | 1071.7 | 1069.2 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 700 | 700 | 700 | 700 |
| Max/Min rating change allowed | 192.2 | 192.7 | 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 | 1096.2 | 1094.6 | 1200 | 1200 |
| New weighted rating | 1112.9 | 1110 | 1200 | 1200 |
| New weighted performance | 1071.4 | 1068.8 | 0 | 0 |
| Temp new rating | 1112.9 | 1110 | 1200 | 1200 |
| Temp new rating +/- | -2.2 | -1.9 | 0 | 0 |
| Final new rating +/- | -2.2 | -1.9 | 0 | 0 |
| New rating | 1112.9 | 1110 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 700 | 700 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 30 | 30 | 0 | 0 | |
| 56 | 56 | 0 | 0 | |
| 4 | 4 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 90 | 90 | 0 | 0 |
| Games since | |||||||||||||||||
| Main86 | Standard86 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Male | ||||||||||||||||
| Age group | U12 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | 4348 | 1386 | 498 | ||||||||||||||
| Male | 3199 | 1041 | 372 | ||||||||||||||
| U12 | 758 | 236 | 93 | ||||||||||||||
| U12 Male | 510 | 166 | 64 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 4291 | 1500 | 587 | ||||||||||||||
| Male | 3151 | 1125 | 438 | ||||||||||||||
| U12 | 717 | 255 | 104 | ||||||||||||||
| U12 Male | 487 | 178 | 70 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U12 | -1 | -1 | -1 | ||||||||||||||
| U12 Male | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Male | -1 | -1 | -1 | ||||||||||||||
| U12 | -1 | -1 | -1 | ||||||||||||||
| U12 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 | 30 | 8 | 26.67 | -198.3 | 1301.2 | 1102.9 |
| Standard | 30 | 8 | 26.67 | -198.3 | 1301.2 | 1102.9 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 90 | 28 | 31.11 | -160.6 | 1249.4 | 1088.8 |
| Standard | 90 | 28 | 31.11 | -160.6 | 1249.4 | 1088.8 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-09-30 | 1096.2 | 1094.6 | 1200 | 1200 |
| 2025-09-01 | 1096.2 | 1094.6 | 1200 | 1200 |
| 2025-08-01 | 1125.9 | 1124.2 | 1200 | 1200 |
| 2025-07-01 | 1125.9 | 1124.2 | 1200 | 1200 |
| 2025-06-01 | 1139.5 | 1138.2 | 1200 | 1200 |
| 2025-05-01 | 1139.5 | 1138.2 | 1200 | 1200 |
| 2025-04-01 | 1139.5 | 1138.2 | 1200 | 1200 |
| 2025-03-01 | 1149.1 | 1151.3 | 1200 | 1200 |
| 2025-02-01 | 1117.9 | 1112.5 | 1200 | 1200 |
| 2025-01-01 | 1085.6 | 1081.1 | 1200 | 1200 |
| 2024-12-01 | 1086.3 | 1083.6 | 1200 | 1200 |
| 2024-11-01 | 1086.3 | 1083.6 | 1200 | 1200 |
| 2024-10-01 | 1086.3 | 1083.6 | 1200 | 1200 |
| 2024-09-01 | 1116.1 | 1116.4 | 1200 | 1200 |
| 2024-08-01 | 1079.9 | 1071.4 | 1200 | 1200 |
| 2024-07-01 | 1079.9 | 1071.4 | 1200 | 1200 |
| 2024-06-01 | 1100.5 | 1091.6 | 1200 | 1200 |
| 2024-08-01 | 1085.9 | 1070 | 1200 | 1200 |
| 2024-04-01 | 1124.4 | 1111 | 1200 | 1200 |
| 2024-03-01 | 1151 | 1140.9 | 1200 | 1200 |
| 2024-02-01 | 1185.1 | 1182.3 | 1200 | 1200 |
| 2024-01-01 | 1186.6 | 1183.4 | 1200 | 1200 |
| 2023-12-01 | 1186.6 | 1183.4 | 1200 | 1200 |
| 2023-11-01 | 1186.6 | 1183.4 | 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 Tshwane South School District CLOSED League Championship (U11B) | 2025-08-15 | 2025-08-15 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 2 | 2025 Etienne Lewis Closed Chess Tournament (U12) | 2025-08-08 | 2025-08-10 | Standard | Tshwane (GTP) | 7 | 6 | 0 | Yes | Analysis |
| 3 | 2025 Elise Steenkamp Open Chess Tournament (Bishop) | 2025-06-14 | 2025-06-15 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 4 | 2025 Chris Greyling Open Chess Tournament (U12) | 2025-03-15 | 2025-03-15 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 5 | 2025 KSNG Open (U12) | 2025-02-22 | 2025-02-22 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 6 | 2025 Tshwane Chess OPEN Registration Tournament (U12) | 2025-01-25 | 2025-01-25 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Tshwane South School District CLOSED League Championship (U11B) | 2025-08-15 | 2025-08-15 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 2 | 2025 Etienne Lewis Closed Chess Tournament (U12) | 2025-08-08 | 2025-08-10 | Standard | Tshwane (GTP) | 7 | 6 | 0 | Yes | Analysis |
| 3 | 2025 Elise Steenkamp Open Chess Tournament (Bishop) | 2025-06-14 | 2025-06-15 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 4 | 2025 Chris Greyling Open Chess Tournament (U12) | 2025-03-15 | 2025-03-15 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 5 | 2025 KSNG Open (U12) | 2025-02-22 | 2025-02-22 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 6 | 2025 Tshwane Chess OPEN Registration Tournament (U12) | 2025-01-25 | 2025-01-25 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 7 | Gauteng Inter-Region at UJ 2024 (U12 Candidates) | 2024-12-07 | 2024-12-08 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 2 | Yes | Analysis |
| 8 | 2024 Etienne Lewis (U12) | 2024-08-30 | 2024-09-01 | Standard | Tshwane (GTP) | 7 | 6 | 1 | Yes | Analysis |
| 9 | D4 Tshwane South District Schools Teams Chess Tournament 2024 (U11B) | 2024-08-03 | 2024-08-03 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 10 | 2024 Elise Steenkamp Open Chess Tournament (Rooks) | 2024-06-15 | 2024-06-15 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 11 | 2024 Mid Gauteng Open Chess Tournament (U12) | 2024-05-02 | 2024-05-02 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 12 | 2024 Milos Ristic Open Chess Tournament (U12) | 2024-04-27 | 2024-04-27 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 13 | 2024 KSNG CHess Academy Open Tournament (D3) | 2024-04-06 | 2024-04-06 | Standard | Tshwane (GTP) | 5 | 5 | 2.5 | Yes | Analysis |
| 14 | 2024 Chris Greyling Open Chess Tournament (D1) | 2024-03-16 | 2024-03-16 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 15 | 2024 Wynie Robbertse Chess Tournament (D1) | 2024-03-02 | 2024-03-02 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 16 | 2024 Constantiapark Open (D1) | 2024-02-17 | 2024-02-17 | Standard | Tshwane (GTP) | 5 | 5 | 1 | Yes | Analysis |
| 17 | 2024 Tshwane Chess OPEN Registration Tournament (D2) | 2024-01-27 | 2024-01-27 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 18 | 2023 Milos Ristic Open Tournament (E) | 2023-04-27 | 2023-04-27 | Standard | Tshwane (GTP) | 5 | 4 | 1.5 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | Tournament2024 Chris Greyling Open Chess Tournament | Tournament2024 KSNG CHess Academy Open Tournament | ||||||
| date2024-03-16 | rnd5 | typeStandard | result1 | date2024-04-06 | rnd2 | typeStandard | result1 | ||
| OpponentMatjila, N (Neo) | OpponentLabuscagne, W (Waldo) | ||||||||
| 2 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd5 | typeStandard | result1 | date2025-08-15 | rnd5 | typeStandard | result1 | ||
| OpponentMalatje, M (Mahlatse) | OpponentMalatje, M (Mahlatse) | ||||||||
| 3 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd3 | typeStandard | result1 | date2025-08-15 | rnd3 | typeStandard | result1 | ||
| OpponentMaritz, N (Noah) | OpponentMaritz, N (Noah) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | Tournament2024 Chris Greyling Open Chess Tournament | Tournament2024 KSNG CHess Academy Open Tournament | ||||||
| date2024-03-16 | rnd5 | typeStandard | result1 | date2024-04-06 | rnd2 | typeStandard | result1 | ||
| OpponentMatjila, N (Neo) | OpponentLabuscagne, W (Waldo) | ||||||||
| 2 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd5 | typeStandard | result1 | date2025-08-15 | rnd5 | typeStandard | result1 | ||
| OpponentMalatje, M (Mahlatse) | OpponentMalatje, M (Mahlatse) | ||||||||
| 3 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd3 | typeStandard | result1 | date2025-08-15 | rnd3 | typeStandard | result1 | ||
| OpponentMaritz, N (Noah) | OpponentMaritz, N (Noah) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd5 | typeStandard | result1 | date2025-08-15 | rnd5 | typeStandard | result1 | ||
| OpponentMalatje, M (Mahlatse) | OpponentMalatje, M (Mahlatse) | ||||||||
| 2 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd3 | typeStandard | result1 | date2025-08-15 | rnd3 | typeStandard | result1 | ||
| OpponentMaritz, N (Noah) | OpponentMaritz, N (Noah) | ||||||||
| 3 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd1 | typeStandard | result1 | date2025-08-15 | rnd1 | typeStandard | result1 | ||
| OpponentJoubert, A (Amelia) | OpponentJoubert, A (Amelia) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd5 | typeStandard | result1 | date2025-08-15 | rnd5 | typeStandard | result1 | ||
| OpponentMalatje, M (Mahlatse) | OpponentMalatje, M (Mahlatse) | ||||||||
| 2 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd3 | typeStandard | result1 | date2025-08-15 | rnd3 | typeStandard | result1 | ||
| OpponentMaritz, N (Noah) | OpponentMaritz, N (Noah) | ||||||||
| 3 | 1 | Tournament2025 Tshwane South School District CLOSED League Championship | Tournament2025 Tshwane South School District CLOSED League Championship | ||||||
| date2025-08-15 | rnd1 | typeStandard | result1 | date2025-08-15 | rnd1 | typeStandard | result1 | ||
| OpponentJoubert, A (Amelia) | OpponentJoubert, A (Amelia) | ||||||||
| # | 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 | Bienedell ,R (Robin) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1531.8 | 1106.8 | 1529 | 1106.8 | 0 | 0 | 0 | 0 | ||||||
| 2 | Vosloo ,L (Leja) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1310.7 | 885.7 | 1312.9 | 885.7 | 0 | 0 | 0 | 0 | ||||||
| 3 | Marais ,M (Migael) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1264.6 | 839.6 | 1258.9 | 839.6 | 0 | 0 | 0 | 0 | ||||||
| 4 | Van Der Merwe ,A (Alex) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1241.8 | 1241.8 | 1249.4 | 1241.8 | 0 | 0 | 0 | 0 | ||||||
| 5 | Mokoena ,K (Kopano) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1168.5 | 1593.5 | 1161.1 | 1593.5 | 0 | 0 | 0 | 0 | ||||||
| 6 | Van Der Westhuyzen ,R (Ruan) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1204.2 | 779.2 | 1204.2 | 779.2 | 0 | 0 | 0 | 0 | ||||||
| 7 | Wolvaardt ,J (Jonathan) | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1374.7 | 1374.7 | 1372.3 | 1374.7 | 0 | 0 | 0 | 0 | ||||||
| 8 | Mamphweli ,T (Tshedza) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1216.1 | 791.1 | 1209.1 | 791.1 | 0 | 0 | 0 | 0 | ||||||
| 9 | Grobbelaar ,M (Mienje) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1421.6 | 996.6 | 1417.1 | 996.6 | 0 | 0 | 0 | 0 | ||||||
| 10 | Danzfuss ,E (Edrich) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1296.4 | 871.4 | 1280.8 | 871.4 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|