PLAYER PAGE
Personal
Grobbelaar, N (Nina)
Chess SA id
2190314138FIDE id
?Date of birth
2019-03-13 (U8)Gender
FemaleRegion
Tshwane (GTP)Citizen
RSATitles
Chess SA registered
YesLast active game
2025-09-27Personal details last changed
2025-03-25Junior GPX Games
54Junior GPX Points
1222.6| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1257.4 | 1251.4 | 1200 | 1200 |
| Raw rating | 1257.4 | 1251.4 | 1200 | 1200 |
| Weighted rating | 1225.1 | 1223.9 | 1200 | 1200 |
| Weighted performance | 1217.5 | 1217.7 | 0 | 0 |
| Floor | 799.4 | 795.6 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 152.8 | 154.1 | 165.8 | 165.8 |
| Highest rating | 1299.42025-08-01 | 1295.62025-08-01 | 12002025-02-01 | 12002025-02-01 |
| Highest raw rating | 1299.42025-08-01 | 1295.62025-08-01 | 12002025-02-01 | 12002025-02-01 |
| Highest weighted rating | 1224.42025-05-05 | 1228.92025-05-05 | 12002025-02-01 | 12002025-02-01 |
| Highest weighted performance | 1299.42025-08-01 | 1295.61900-01-01 | 01900-01-01 | 01900-01-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1257.4 | 1251.4 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1257.4 | 1251.4 | 1200 | 1200 |
| Raw rating | 1257.4 | 1251.4 | 1200 | 1200 |
| Weighted rating | 1225.1 | 1223.9 | 1200 | |
| Weighted performance | 1217.5 | 1217.7 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 799.4 | 795.6 | 700 | 700 |
| Max/Min rating change allowed | 152.8 | 154.1 | 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 | 1257.4 | 1251.4 | 1200 | 1200 |
| New weighted rating | 1228.5 | 1226.9 | 1200 | 1200 |
| New weighted performance | 1210.2 | 1210.5 | 0 | 0 |
| Temp new rating | 1257.4 | 1251.4 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1257.4 | 1251.4 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 799.4 | 795.6 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 54 | 54 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 54 | 54 | 0 | 0 |
| Games since | |||||||||||||||||
| Main54 | Standard54 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Female | ||||||||||||||||
| Age group | U8 | ||||||||||||||||
| Region | Tshwane (GTP) | ||||||||||||||||
| Province | Gauteng (GT) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | 3654 | 1205 | 427 | ||||||||||||||
| Female | 806 | 269 | 98 | ||||||||||||||
| U8 | 58 | 14 | 2 | ||||||||||||||
| U8 Female | 21 | 5 | 2 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | 3635 | 1302 | 494 | ||||||||||||||
| Female | 802 | 282 | 114 | ||||||||||||||
| U8 | 59 | 16 | 4 | ||||||||||||||
| U8 Female | 21 | 6 | 3 | ||||||||||||||
| Rapid | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U8 | -1 | -1 | -1 | ||||||||||||||
| U8 Female | -1 | -1 | -1 | ||||||||||||||
| Blitz | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U8 | -1 | -1 | -1 | ||||||||||||||
| U8 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 | 54 | 25.5 | 47.22 | -23.6 | 1252.2 | 1228.6 |
| Standard | 54 | 25.5 | 47.22 | -23.6 | 1252.2 | 1228.6 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 54 | 25.5 | 47.22 | -23.6 | 1252.2 | 1228.6 |
| Standard | 54 | 25.5 | 47.22 | -23.6 | 1252.2 | 1228.6 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1257.4 | 1251.4 | 1200 | 1200 |
| 2025-09-30 | 1257.4 | 1251.4 | 1200 | 1200 |
| 2025-09-01 | 1275.6 | 1271.2 | 1200 | 1200 |
| 2025-08-01 | 1299.4 | 1295.6 | 1200 | 1200 |
| 2025-07-01 | 1224.4 | 1228.9 | 1200 | 1200 |
| 2025-06-01 | 1201.9 | 1201.8 | 1200 | 1200 |
| 2025-05-01 | 1216.6 | 1217.4 | 1200 | 1200 |
| 2025-04-01 | 1216.6 | 1217.4 | 1200 | 1200 |
| 2025-03-01 | 1199.5 | 1199.3 | 1200 | 1200 |
| 2025-02-01 | 1198.5 | 1198.1 | 1200 | 1200 |
| 2025-01-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-12-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-11-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-10-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-09-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-08-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-07-01 | 1200 | 1200 | 1200 | 1200 |
| 2024-09-01 | 1200 | 1200 | 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 Centurion Chess Open Tournament (U8) | 2025-09-27 | 2025-09-27 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 2 | 2025 Etienne Lewis Closed Chess Tournament (U8) | 2025-08-09 | 2025-08-09 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 3 | 2025 Wynie Robbertse Chess Tournament (U8) | 2025-07-19 | 2025-07-19 | Standard | Tshwane (GTP) | 5 | 5 | 2.5 | Yes | Analysis |
| 4 | South African Open 2025 (U8 Girls) | 2025-07-03 | 2025-07-05 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 4 | Yes | Analysis |
| 5 | Third Knight Riders Junior Open 2025 (U8) | 2025-06-22 | 2025-06-22 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 3 | Yes | Analysis |
| 6 | 2025 Silver Lakes Chess Club Open Chess Tournament (U8) | 2025-05-03 | 2025-05-03 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 7 | Lubowski Open 2025 (E+F) | 2025-03-21 | 2025-03-21 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 8 | 2025 Chris Greyling Open Chess Tournament (U8) | 2025-03-15 | 2025-03-15 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 9 | AHS Open Chess Tournament 2025 (U8) | 2025-03-01 | 2025-03-01 | Standard | Tshwane (GTP) | 5 | 4 | 2 | Yes | Analysis |
| 10 | Constantiapark Open 2025 (U8) | 2025-02-15 | 2025-02-15 | Standard | Tshwane (GTP) | 5 | 4 | 2 | Yes | Analysis |
| 11 | 2025 Blou Bul Open Chess Tournament (F) | 2025-02-08 | 2025-02-08 | Standard | Tshwane (GTP) | 5 | 4 | 1.5 | Yes | Analysis |
| 12 | 2025 Tshwane Chess OPEN Registration Tournament (U8) | 2025-01-25 | 2025-01-25 | Standard | Tshwane (GTP) | 5 | 4 | 1.5 | Yes | Analysis |
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025 Centurion Chess Open Tournament (U8) | 2025-09-27 | 2025-09-27 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 2 | 2025 Etienne Lewis Closed Chess Tournament (U8) | 2025-08-09 | 2025-08-09 | Standard | Tshwane (GTP) | 5 | 5 | 2 | Yes | Analysis |
| 3 | 2025 Wynie Robbertse Chess Tournament (U8) | 2025-07-19 | 2025-07-19 | Standard | Tshwane (GTP) | 5 | 5 | 2.5 | Yes | Analysis |
| 4 | South African Open 2025 (U8 Girls) | 2025-07-03 | 2025-07-05 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 4 | Yes | Analysis |
| 5 | Third Knight Riders Junior Open 2025 (U8) | 2025-06-22 | 2025-06-22 | Standard | Johannesburg Metro (GJM) | 5 | 5 | 3 | Yes | Analysis |
| 6 | 2025 Silver Lakes Chess Club Open Chess Tournament (U8) | 2025-05-03 | 2025-05-03 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 7 | Lubowski Open 2025 (E+F) | 2025-03-21 | 2025-03-21 | Standard | Tshwane (GTP) | 5 | 5 | 3 | Yes | Analysis |
| 8 | 2025 Chris Greyling Open Chess Tournament (U8) | 2025-03-15 | 2025-03-15 | Standard | Tshwane (GTP) | 5 | 4 | 1 | Yes | Analysis |
| 9 | AHS Open Chess Tournament 2025 (U8) | 2025-03-01 | 2025-03-01 | Standard | Tshwane (GTP) | 5 | 4 | 2 | Yes | Analysis |
| 10 | Constantiapark Open 2025 (U8) | 2025-02-15 | 2025-02-15 | Standard | Tshwane (GTP) | 5 | 4 | 2 | Yes | Analysis |
| 11 | 2025 Blou Bul Open Chess Tournament (F) | 2025-02-08 | 2025-02-08 | Standard | Tshwane (GTP) | 5 | 4 | 1.5 | Yes | Analysis |
| 12 | 2025 Tshwane Chess OPEN Registration Tournament (U8) | 2025-01-25 | 2025-01-25 | Standard | Tshwane (GTP) | 5 | 4 | 1.5 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentSouth African Open 2025 | Tournament2025 Wynie Robbertse Chess Tournament | ||||||
| date2025-07-04 | rnd4 | typeStandard | result1 | date2025-07-19 | rnd3 | typeStandard | result1 | ||
| OpponentZingeni, R (Rethabile) | OpponentSekgobela, A (Adil) | ||||||||
| 2 | 4 | TournamentThird Knight Riders Junior Open 2025 | TournamentSouth African Open 2025 | ||||||
| date2025-06-22 | rnd4 | typeStandard | result1 | date2025-07-03 | rnd2 | typeStandard | result1 | ||
| OpponentNcube, A (Amaris) | OpponentLiebenberg, A (Arabella) | ||||||||
| 3 | 2 | TournamentLubowski Open 2025 | TournamentLubowski Open 2025 | ||||||
| date2025-03-21 | rnd2 | typeStandard | result1 | date2025-03-21 | rnd3 | typeStandard | result1 | ||
| OpponentViljoen, L (Lenicke) | OpponentVan Der Merwe, H (Hunter) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 5 | TournamentSouth African Open 2025 | Tournament2025 Wynie Robbertse Chess Tournament | ||||||
| date2025-07-04 | rnd4 | typeStandard | result1 | date2025-07-19 | rnd3 | typeStandard | result1 | ||
| OpponentZingeni, R (Rethabile) | OpponentSekgobela, A (Adil) | ||||||||
| 2 | 4 | TournamentThird Knight Riders Junior Open 2025 | TournamentSouth African Open 2025 | ||||||
| date2025-06-22 | rnd4 | typeStandard | result1 | date2025-07-03 | rnd2 | typeStandard | result1 | ||
| OpponentNcube, A (Amaris) | OpponentLiebenberg, A (Arabella) | ||||||||
| 3 | 2 | TournamentLubowski Open 2025 | TournamentLubowski Open 2025 | ||||||
| date2025-03-21 | rnd2 | typeStandard | result1 | date2025-03-21 | rnd3 | typeStandard | result1 | ||
| OpponentViljoen, L (Lenicke) | OpponentVan Der Merwe, H (Hunter) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | TournamentThird Knight Riders Junior Open 2025 | TournamentSouth African Open 2025 | ||||||
| date2025-06-22 | rnd4 | typeStandard | result1 | date2025-07-03 | rnd2 | typeStandard | result1 | ||
| OpponentNcube, A (Amaris) | OpponentLiebenberg, A (Arabella) | ||||||||
| 2 | 2 | Tournament2025 Wynie Robbertse Chess Tournament | Tournament2025 Wynie Robbertse Chess Tournament | ||||||
| date2025-07-19 | rnd2 | typeStandard | result1 | date2025-07-19 | rnd3 | typeStandard | result1 | ||
| OpponentConradie, L (Lily) | OpponentSekgobela, A (Adil) | ||||||||
| 3 | 2 | TournamentSouth African Open 2025 | TournamentSouth African Open 2025 | ||||||
| date2025-07-04 | rnd4 | typeStandard | result1 | date2025-07-05 | rnd5 | typeStandard | result1 | ||
| OpponentZingeni, R (Rethabile) | OpponentMaduna, A (Asonele) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | TournamentThird Knight Riders Junior Open 2025 | TournamentSouth African Open 2025 | ||||||
| date2025-06-22 | rnd4 | typeStandard | result1 | date2025-07-03 | rnd2 | typeStandard | result1 | ||
| OpponentNcube, A (Amaris) | OpponentLiebenberg, A (Arabella) | ||||||||
| 2 | 2 | Tournament2025 Wynie Robbertse Chess Tournament | Tournament2025 Wynie Robbertse Chess Tournament | ||||||
| date2025-07-19 | rnd2 | typeStandard | result1 | date2025-07-19 | rnd3 | typeStandard | result1 | ||
| OpponentConradie, L (Lily) | OpponentSekgobela, A (Adil) | ||||||||
| 3 | 2 | TournamentSouth African Open 2025 | TournamentSouth African Open 2025 | ||||||
| date2025-07-04 | rnd4 | typeStandard | result1 | date2025-07-05 | rnd5 | typeStandard | result1 | ||
| OpponentZingeni, R (Rethabile) | OpponentMaduna, A (Asonele) | ||||||||
| # | 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 | Mendonca ,M (Mark) | 4 | 0 | -425 | 4 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1409.8 | 984.8 | 1402.7 | 984.8 | 0 | 0 | 0 | 0 | ||||||
| 2 | Conradie ,L (Lily) | 4 | 3 | 212.5 | 4 | 3 | 212.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1195.3 | 1407.8 | 1194.9 | 1407.8 | 0 | 0 | 0 | 0 | ||||||
| 3 | Fourie ,D (Daniël) | 3 | 0 | -425 | 3 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1366 | 941 | 1371.9 | 941 | 0 | 0 | 0 | 0 | ||||||
| 4 | Klopper ,L (Liam) | 3 | 0.5 | -283.3 | 3 | 0.5 | -283.3 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1323 | 1039.6 | 1318.1 | 1039.6 | 0 | 0 | 0 | 0 | ||||||
| 5 | Van Eeden ,C (Cilliers) | 3 | 0 | -425 | 3 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1317.1 | 892.1 | 1316.2 | 892.1 | 0 | 0 | 0 | 0 | ||||||
| 6 | Van Zyl ,L (Liane) | 3 | 0 | -425 | 3 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1284.2 | 859.2 | 1285.6 | 859.2 | 0 | 0 | 0 | 0 | ||||||
| 7 | Viljoen ,L (Lenicke) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1125.1 | 1550.1 | 1119 | 1550.1 | 0 | 0 | 0 | 0 | ||||||
| 8 | Kaboyaone ,KV (Kael Vanya) | 2 | 0 | -425 | 2 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1237.4 | 812.4 | 1243.6 | 812.4 | 0 | 0 | 0 | 0 | ||||||
| 9 | Davison ,G (Georgia) | 2 | 0.5 | -212.5 | 2 | 0.5 | -212.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1198.8 | 986.2 | 1198.4 | 986.2 | 0 | 0 | 0 | 0 | ||||||
| 10 | Liebenberg ,A (Arabella) | 2 | 2 | 425 | 2 | 2 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1208.7 | 1633.7 | 1211.2 | 1633.7 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|