PLAYER PAGE
Personal
Van Der Merwe, S (Sumari)
Chess SA id
2110146212FIDE id
?Date of birth
2011-07-13 (U16)Gender
FemaleRegion
Cape Winelands (WCW)Citizen
RSATitles
Chess SA registered
NoLast active game
2022-10-29Personal details last changed
1900-01-01Junior GPX Games
Junior GPX Points
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| Rating | 1131.7 | 1116.7 | 1200 | 1200 |
| Raw rating | 1131.7 | 1116.7 | 1200 | 1200 |
| Weighted rating | 1131.7 | 1116.7 | 1200 | 1200 |
| Weighted performance | 0 | 0 | 0 | 0 |
| Floor | 713.9 | 716.4 | 700 | 700 |
| K-factor | 36 | 36 | 36 | 36 |
| Min/Max rating change allowed | 182.8 | 186.7 | 165.8 | 165.8 |
| Highest rating | 1342.52022-08-01 | 1340.72022-08-01 | 12002018-10-01 | 12002018-10-01 |
| Highest raw rating | 1213.92022-09-01 | 1216.42022-09-01 | 12002024-03-01 | 12002024-03-01 |
| Highest weighted rating | 1213.92022-09-01 | 1216.42022-09-01 | 12002018-10-01 | 12002018-10-01 |
| Highest weighted performance | 1342.52022-08-01 | 1340.72022-08-01 | 12002024-03-01 | 12002024-03-01 |
| Prediction | ||||
|---|---|---|---|---|
| Item | Main | Standard | Rapid | Blitz |
| Rating change | 0 | 0 | 0 | 0 |
| New rating | 1131.7 | 1116.7 | 1200 | 1200 |
| Analysis | ||||
| Rating | 1131.7 | 1116.7 | 1200 | 1200 |
| Raw rating | 1131.7 | 1116.7 | 1200 | 1200 |
| Weighted rating | 1131.7 | 1116.7 | 1200 | |
| Weighted performance | 0 | 0 | 0 | |
| K-factor | 36 | 36 | 36 | 36 |
| Floor | 713.9 | 716.4 | 700 | 700 |
| Max/Min rating change allowed | 182.8 | 186.7 | 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 | 1131.7 | 1116.7 | 1200 | 1200 |
| New weighted rating | 1131.7 | 1116.7 | 1200 | 1200 |
| New weighted performance | 0 | 0 | 0 | 0 |
| Temp new rating | 1131.7 | 1116.7 | 1200 | 1200 |
| Temp new rating +/- | 0 | 0 | 0 | 0 |
| Final new rating +/- | 0 | 0 | 0 | 0 |
| New rating | 1131.7 | 1116.7 | 1200 | 1200 |
| New K-factor | 36 | 36 | 36 | 36 |
| New floor | 713.9 | 716.4 | 700 | 700 |
| Item | Main | Standard | Rapid | Blitz |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| 11 | 11 | 0 | 0 | |
| 0 | 0 | 0 | 0 | |
| History | 11 | 11 | 0 | 0 |
| Games since | |||||||||||||||||
| Main0 | Standard0 | Rapid0 | Blitz0 | ||||||||||||||
| Gender | Female | ||||||||||||||||
| Age group | U16 | ||||||||||||||||
| Region | Cape Winelands (WCW) | ||||||||||||||||
| Province | Western Cape (WC) | ||||||||||||||||
| Main | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Female | -1 | -1 | -1 | ||||||||||||||
| Standard | RSA | Province | Region | ||||||||||||||
| Overall | -1 | -1 | -1 | ||||||||||||||
| Female | -1 | -1 | -1 | ||||||||||||||
| U16 | -1 | -1 | -1 | ||||||||||||||
| U16 Female | -1 | -1 | -1 | ||||||||||||||
| 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 | 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 |
| History | ||||||
| Games | Score | % | Dp | AvgOpp | Performance | |
| Main | 11 | 3 | 27.27 | -193.2 | 1223.4 | 1030.3 |
| Standard | 11 | 3 | 27.27 | -193.2 | 1223.4 | 1030.3 |
| Rapid | 0 | 0 | 0 | 0 | 0 | 0 |
| Blitz | 0 | 0 | 0 | 0 | 0 | 0 |
| Date | Main | Standard | Rapid | Blitz |
| 2025-11-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-09-30 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-09-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-08-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-07-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-06-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-05-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-04-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-03-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-02-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2025-01-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-12-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-11-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-10-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-09-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-08-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-07-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-09-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-05-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-04-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-03-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-02-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2024-01-01 | 1131.7 | 1116.7 | 1200 | 1200 |
| 2023-12-01 | 1131.7 | 1116.7 | 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 |
|---|
Last 500 tournaments since 01 January 2018
| # | Tournament | Start | End | Type | Host | Rounds | Games | Score | Cfr | Analysis |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Robertson Strategema Club 2022 (U13) | 2022-10-29 | 2022-10-29 | Standard | Cape Winelands (WCW) | 5 | 4 | 0 | Yes | Analysis |
| 2 | Western Cape Top Schools 2022 (U11 Girls) | 2022-09-16 | 2022-09-17 | Standard | Overberg (WOS) | 5 | 4 | 1 | Yes | Analysis |
| 3 | Cape Winelands Schools Top Schools 2022 (U7-U11 Mixed) | 2022-08-27 | 2022-08-27 | Standard | Cape Winelands (WCW) | 6 | 3 | 2 | Yes | Analysis |
Top 3 Streaks
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentCape Winelands Schools Top Schools 2022 | TournamentWestern Cape Top Schools 2022 | ||||||
| date2022-08-27 | rnd3 | typeStandard | result1 | date2022-09-16 | rnd1 | typeStandard | result1 | ||
| OpponentKlopper, A (Armand) | OpponentBezuidenhout, C (Chloe) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentCape Winelands Schools Top Schools 2022 | TournamentWestern Cape Top Schools 2022 | ||||||
| date2022-08-27 | rnd3 | typeStandard | result1 | date2022-09-16 | rnd1 | typeStandard | result1 | ||
| OpponentKlopper, A (Armand) | OpponentBezuidenhout, C (Chloe) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentCape Winelands Schools Top Schools 2022 | TournamentWestern Cape Top Schools 2022 | ||||||
| date2022-08-27 | rnd3 | typeStandard | result1 | date2022-09-16 | rnd1 | typeStandard | result1 | ||
| OpponentKlopper, A (Armand) | OpponentBezuidenhout, C (Chloe) | ||||||||
| # | Games | Start | End | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | TournamentCape Winelands Schools Top Schools 2022 | TournamentWestern Cape Top Schools 2022 | ||||||
| date2022-08-27 | rnd3 | typeStandard | result1 | date2022-09-16 | rnd1 | typeStandard | result1 | ||
| OpponentKlopper, A (Armand) | OpponentBezuidenhout, C (Chloe) | ||||||||
| # | 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 | Terblanch ,C (Cleuce) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1387.9 | 962.9 | 1384.2 | 962.9 | 0 | 0 | 0 | 0 | ||||||
| 2 | Keteldas ,F (Ferdriano) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1207.4 | 782.4 | 1200 | 782.4 | 0 | 0 | 0 | 0 | ||||||
| 3 | Bezuidenhout ,C (Chloe) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 4 | De Koker ,L (Lloyd) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1167.1 | 742.1 | 1161.6 | 742.1 | 0 | 0 | 0 | 0 | ||||||
| 5 | Fihla ,L (Lethabo) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 775 | 1200 | 775 | 0 | 0 | 0 | 0 | ||||||
| 6 | Klopper ,A (Armand) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 7 | Koert ,D (Danell) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 775 | 1200 | 775 | 0 | 0 | 0 | 0 | ||||||
| 8 | Sapto ,D (Danicko) | 1 | 1 | 425 | 1 | 1 | 425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1200 | 1625 | 1200 | 1625 | 0 | 0 | 0 | 0 | ||||||
| 9 | Soeker ,E (Emaan) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1180.4 | 755.4 | 1178.8 | 755.4 | 0 | 0 | 0 | 0 | ||||||
| 10 | Lockem ,M (Marli) | 1 | 0 | -425 | 1 | 0 | -425 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1214.9 | 789.9 | 1228.7 | 789.9 | 0 | 0 | 0 | 0 | ||||||
Norms
| # | Norm | Tournament | Start | End | Rounds | Games | Score | Details |
|---|---|---|---|---|---|---|---|---|