PLAYER PAGE
Mieke Rock
2110159246Overberg (WOS)Personal
Main rating
| Rating | 1268.7 |
| K-factor | 36 |
| Floor | 768.7 |
| Highest | 1268.7 (2026-09-01) |
| Min/Max +/- allowed | 150 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 2.41 |
| SWe | 1.32 |
| Temp +/- | 47.6 |
| Penalties | 0 |
| Weight perform | 1322.2 |
| Final +/- | +53.5 |
| New Rating () | |
| Rating | 1322.2 |
| K-factor | 36 |
| Floor | 822.2 |
| Highest | 1322.2 (2026-09-01) |
| Min/Max +/- allowed | 139.3 |
Standard rating
| Rating | 1222.8 |
| K-factor | 36 |
| Floor | 722.8 |
| Highest | 1222.8 (2026-09-01) |
| Min/Max +/- allowed | 160.5 |
| Rating Change () | |
| Games | 5 |
| Score | 4 |
| We | 2.22 |
| SWe | 1.78 |
| Temp +/- | 64 |
| Penalties | 0 |
| Weight perform | 1291.4 |
| Final +/- | +68.6 |
| New Rating () | |
| Rating | 1291.4 |
| K-factor | 36 |
| Floor | 791.4 |
| Highest | 1291.4 (2026-09-01) |
| Min/Max +/- allowed | 145.6 |
Rapid rating
| Rating | 1236.5 |
| K-factor | 36 |
| Floor | 750.2 |
| Highest | 1264.2 (2023-10-01) |
| Min/Max +/- allowed | 151.3 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1188.8 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1236.5 |
| K-factor | 36 |
| Floor | 750.2 |
| Highest | 1264.2 (2023-10-01) |
| Min/Max +/- allowed | 151.3 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Western Cape Schools - Top Schools 2026 (U15 Mix) | Standard | 2026-08-29 | 2026-08-30 | Cape Town (WCT) | 6 | 1268.7 | 5 | 4 | 1532.5 | 47.6 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Overberg Top Schools 2026 (U15) | Standard | 2026-08-01 | 2026-08-01 | Overberg (WOS) | 3 | 1268.7 | 3 | 2 | 1343.9 | 10.3 | Details |
| 2 | Curro Hermanus Winter Open 2026 (U15) | Rapid | 2026-06-20 | 2026-06-20 | Overberg (WOS) | 6 | 1253.1 | 6 | 3 | 1277.1 | 5.2 | Details |
| 3 | 2026 WCSC HS Individual Championship (U15 Girls) | Standard | 2026-05-02 | 2026-05-03 | Eden (WEG) | 6 | 1252.6 | 6 | 2 | 1256.6 | 0.5 | Details |
| 4 | Overberg Schools High School Closed 2026 (U15 Girls) | Standard | 2026-03-07 | 2026-03-07 | Overberg (WOS) | 5 | 1212.4 | 5 | 3 | 1443.6 | 40.3 | Details |
| 5 | Overberg Schools High School Trials 2026 (U15 Girls) | Rapid | 2026-02-21 | 2026-02-21 | Overberg (WOS) | 6 | 1211.9 | 5 | 2 | 1222.5 | 0.2 | Details |
| 6 | Kleinmond Chess Club Open 2025 (U14) | Rapid | 2025-08-30 | 2025-08-30 | Overberg (WOS) | 6 | 1190.1 | 6 | 3.5 | 1350.3 | 12.1 | Details |
| 7 | Brave Knights Rapid 2025 (Open) | Rapid | 2025-05-03 | 2025-05-03 | Cape Winelands (WCW) | 6 | 1166.9 | 6 | 3 | 1329.2 | 12.9 | Details |
| 8 | Overberg Schools - HS Closed 2025 (U15 Girls) | Standard | 2025-03-22 | 2025-03-22 | Overberg (WOS) | 5 | 1189.3 | 5 | 1.5 | 1069.6 | -12.4 | Details |
| 9 | Overberg Schools - HS Trials 2025 (U15 Girls) | Rapid | 2025-02-22 | 2025-02-22 | Overberg (WOS) | 6 | 1161.3 | 6 | 3 | 1252.7 | 7.7 | Details |
| 10 | Curro Hermanus Summer Open 2025 (U15) | Rapid | 2025-02-08 | 2025-02-08 | Overberg (WOS) | 6 | 1161.3 | 6 | 3 | 1333.3 | 13.5 | Details |
| 11 | Overberg Schools & Federation Open 2025 (U15) | Rapid | 2025-02-01 | 2025-02-01 | Overberg (WOS) | 6 | 1161.3 | 6 | 2 | 1095.6 | -5.7 | Details |
| 12 | Overberg GP Invitational Day 2 2024 (B) | Standard | 2024-09-27 | 2024-09-27 | Overberg (WOS) | 5 | 1166.5 | 5 | 2 | 1209.9 | 5 | Details |
| 13 | Overberg GP Invitational Day 1 2024 (B) | Standard | 2024-09-26 | 2024-09-26 | Overberg (WOS) | 5 | 1166.5 | 5 | 2 | 1268.2 | 8.8 | Details |
| 14 | Kleinmond Chess Club Open 2024 (U14) | Rapid | 2024-09-07 | 2024-09-07 | Overberg (WOS) | 6 | 1166.5 | 6 | 3 | 1222.7 | 3.3 | Details |
| 15 | Western Cape Top Schools Championship 2024 (U13 Mixed) | Standard | 2024-08-30 | 2024-09-01 | Eden (WEG) | 6 | 1166.5 | 6 | 0 | 855.2 | -36.7 | Details |
| 16 | Overberg Schools - Top Schools 2024 (U13 Mixed) | Standard | 2024-07-27 | 2024-07-27 | Overberg (WOS) | 5 | 1142.9 | 5 | 3 | 1270.3 | 13.1 | Details |
| 17 | Western Cape PS Individuals Championship 2024 (U13 Girls) | Standard | 2024-05-04 | 2024-05-05 | West Coast (WCU) | 6 | 1200.3 | 5 | 0 | 880.4 | -31.9 | Details |
| 18 | Hermanus Chess Club Open 2024 (Development) | Rapid | 2024-04-20 | 2024-04-20 | Overberg (WOS) | 7 | 1185.7 | 7 | 4 | 1294.8 | 8.1 | Details |
| 19 | Overberg Schools - PS Closed 2024 (U13 Girls) | Standard | 2024-03-16 | 2024-03-16 | Overberg (WOS) | 5 | 1153.7 | 5 | 3 | 1309.9 | 14.4 | Details |
| 20 | Overberg Schools - PS Trials Region 3 2024 (U13 Girls) | Rapid | 2024-03-02 | 2024-03-02 | Overberg (WOS) | 5 | 1153.7 | 5 | 2.5 | 1209.8 | 3.4 | Details |
| 21 | Overberg Open Rapid 2024 (U13) | Rapid | 2024-01-27 | 2024-01-27 | Overberg (WOS) | 5 | 1161.8 | 5 | 2 | 1071.4 | -4.5 | Details |
| 22 | Kingsway Open 2023 (Beginners) | Rapid | 2023-10-28 | 2023-10-28 | Overberg (WOS) | 5 | 1151.6 | 5 | 3 | 1262.2 | 5.8 | Details |
| 23 | Overberg Top Schools 2023 (U13) | Standard | 2023-08-05 | 2023-08-05 | Overberg (WOS) | 5 | 1200 | 3 | 0 | 729.1 | -26.9 | Details |
Game statistics ( )
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics ()
| Games | 30 |
| Wins | 16 |
| Draws | 0 |
| Losses | 14 |
| White | 14 |
| Black | 16 |
| White wins | 8 |
| Black wins | 8 |
| Score | 16 |
| Percent | 53.3 |
| Dp | 28.3 |
| AOR | 1312.6 |
| Performance | 1340.9 |
Game statistics (History)
| Games | 127 |
| Wins | 55 |
| Draws | 3 |
| Losses | 69 |
| White | 66 |
| Black | 61 |
| White wins | 29 |
| Black wins | 26 |
| Score | 56.5 |
| Percent | 44.5 |
| Dp | -46.9 |
| AOR | 1266.3 |
| Performance | 1219.4 |
Rankings (Main)
| National | |
| Overall | 7625 |
| Gender | 1451 |
| Age group | 1252 |
| Gender/Age | 269 |
| Provincial | |
| Overall | 2211 |
| Gender | 507 |
| Age group | 353 |
| Gender/Age | 90 |
| Regional | |
| Overall | 150 |
| Gender | 47 |
| Age group | 24 |
| Gender/Age | 13 |
Rankings (Standard)
| National | |
| Overall | 8650 |
| Gender | 1895 |
| Age group | 1472 |
| Gender/Age | 351 |
| Provincial | |
| Overall | 2468 |
| Gender | 636 |
| Age group | 404 |
| Gender/Age | 101 |
| Regional | |
| Overall | 153 |
| Gender | 59 |
| Age group | 22 |
| Gender/Age | 13 |
Rankings (Rapid)
| National | |
| Overall | 3474 |
| Gender | 709 |
| Age group | 640 |
| Gender/Age | 150 |
| Provincial | |
| Overall | 1359 |
| Gender | 317 |
| Age group | 240 |
| Gender/Age | 65 |
| Regional | |
| Overall | 184 |
| Gender | 61 |
| Age group | 32 |
| Gender/Age | 15 |
Rankings (Blitz)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 30 |
| Score | 16 |
| Percent | 53.3 |
| Aor | 1312.6 |
| Dp | 28.3 |
| Prat | 1340.9 |
Performance (12 months)
| Games | 30 |
| Score | 16 |
| Percent | 53.3 |
| Aor | 1312.6 |
| Dp | 28.3 |
| Prat | 1340.9 |
Performance (History)
| Games | 127 |
| Score | 56.5 |
| Percent | 44.5 |
| Aor | 1266.3 |
| Dp | -46.9 |
| Prat | 1219.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Van Der Linde, L (Luandi) | 4 | 0 | 4 | Overberg Schools - PS Trials Region 3 2024 (U13 Girls) | Curro Hermanus Winter Open 2026 (U15) | Details |
| Overall | 2 | Van Der Westhuizen, M (Mika) | 4 | 2 | 2 | Overberg Schools - PS Closed 2024 (U13 Girls) | Curro Hermanus Winter Open 2026 (U15) | Details |
| Overall | 3 | Lotter, M (Michael) | 4 | 2 | 2 | Overberg GP Invitational Day 1 2024 (B) | Curro Hermanus Summer Open 2025 (U15) | Details |
| Overall | 4 | Buhr, G (Gretchen) | 4 | 3 | 1 | Overberg Schools - PS Closed 2024 (U13 Girls) | Overberg Schools High School Trials 2026 (U15 Girls) | Details |
| Overall | 5 | Stevens, DA (Danielle-Ann) | 4 | 2 | 2 | Kleinmond Chess Club Open 2024 (U14) | Curro Hermanus Winter Open 2026 (U15) | Details |
| Standard | 1 | Van Der Westhuizen, M (Mika) | 3 | 2 | 1 | Overberg Schools - PS Closed 2024 (U13 Girls) | Overberg GP Invitational Day 2 2024 (B) | Details |
| Standard | 2 | Buhr, G (Gretchen) | 3 | 2 | 1 | Overberg Schools - PS Closed 2024 (U13 Girls) | Overberg GP Invitational Day 2 2024 (B) | Details |
| Standard | 3 | Prins, C (Christiaan) | 3 | 2 | 1 | Overberg Schools - Top Schools 2024 (U13 Mixed) | Overberg GP Invitational Day 1 2024 (B) | Details |
| Standard | 4 | Lotter, M (Michael) | 2 | 1 | 1 | Overberg GP Invitational Day 1 2024 (B) | Overberg GP Invitational Day 2 2024 (B) | Details |
| Standard | 5 | Nel, A (Anika) | 2 | 2 | 0 | Overberg Schools - PS Closed 2024 (U13 Girls) | Overberg Schools - HS Closed 2025 (U15 Girls) | Details |
| Rapid | 1 | Stevens, DA (Danielle-Ann) | 3 | 2 | 1 | Kleinmond Chess Club Open 2024 (U14) | Curro Hermanus Winter Open 2026 (U15) | Details |
| Rapid | 2 | Van Der Linde, L (Luandi) | 3 | 0 | 3 | Overberg Schools - PS Trials Region 3 2024 (U13 Girls) | Curro Hermanus Winter Open 2026 (U15) | Details |
| Rapid | 3 | Lotter, M (Michael) | 2 | 1 | 1 | Overberg Schools & Federation Open 2025 (U15) | Curro Hermanus Summer Open 2025 (U15) | Details |
| Rapid | 4 | D`Ambrosio, G (Gohan) | 2 | 2 | 0 | Kleinmond Chess Club Open 2024 (U14) | Overberg Schools & Federation Open 2025 (U15) | Details |
| Rapid | 5 | D`Ambrosio, D (Djuna) | 2 | 2 | 0 | Overberg Schools & Federation Open 2025 (U15) | Overberg Schools - HS Trials 2025 (U15 Girls) | Details |