PLAYER PAGE
Jason Carstens
1160300801Cape Town (WCT)Personal
Main rating
| Rating | 1491.8 |
| K-factor | 32 |
| Floor | 1005.6 |
| Highest | 1505.6 (2026-04-01) |
| Min/Max +/- allowed | 107 |
| Rating Change () | |
| Games | 7 |
| Score | 3.5 |
| We | 3.91 |
| SWe | -0.41 |
| Temp +/- | -13.2 |
| Penalties | 0 |
| Weight perform | 1445.9 |
| Final +/- | -13.2 |
| New Rating () | |
| Rating | 1478.6 |
| K-factor | 32 |
| Floor | 1005.6 |
| Highest | 1505.6 (2026-04-01) |
| Min/Max +/- allowed | 107.3 |
Standard rating
| Rating | 1474 |
| K-factor | 32 |
| Floor | 980 |
| Highest | 1480 (2026-03-01) |
| Min/Max +/- allowed | 111.3 |
| Rating Change () | |
| Games | 7 |
| Score | 3.5 |
| We | 3.79 |
| SWe | -0.29 |
| Temp +/- | -9.3 |
| Penalties | 0 |
| Weight perform | 1441.3 |
| Final +/- | -9.3 |
| New Rating () | |
| Rating | 1464.7 |
| K-factor | 32 |
| Floor | 980 |
| Highest | 1480 (2026-03-01) |
| Min/Max +/- allowed | 111.3 |
Rapid rating
| Rating | 1352.6 |
| K-factor | 36 |
| Floor | 852.6 |
| Highest | 1352.6 (2026-04-01) |
| Min/Max +/- allowed | 133.4 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1352.6 |
| K-factor | 36 |
| Floor | 852.6 |
| Highest | 1352.6 (2026-04-01) |
| Min/Max +/- allowed | 133.4 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2024-04-01) |
| 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 (2024-04-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | South African Open Championship 2026 (U11 Boys) | Classical | 2026-07-02 | 2026-07-05 | Cape Town (WCT) | 7 | 1491.8 | 7 | 3.5 | 1392.9 | -13.2 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | CTCF Open Championship 2026 (U12) | Classical | 2026-06-13 | 2026-06-14 | Cape Town (WCT) | 6 | 1490.3 | 5 | 3 | 1504.8 | 1.5 | Details |
| 2 | 2026 WCSC PS Individual Championship (U11 Boys) | Standard | 2026-05-16 | 2026-05-17 | Overberg (WOS) | 6 | 1505.6 | 6 | 3 | 1422.8 | -15.4 | Details |
| 3 | Hermanus Chess Club Open 2026 (U12) | Rapid | 2026-04-18 | 2026-04-18 | Overberg (WOS) | 7 | 1480 | 7 | 5.5 | 1656.1 | 21.3 | Details |
| 4 | CT Metro Schools Individual Closed 2026 (U11 Boys) | Standard | 2026-03-07 | 2026-03-08 | Cape Town (WCT) | 6 | 1425.8 | 6 | 4 | 1635.9 | 40.3 | Details |
| 5 | CT Metro North Schools Chess Individual Trials 2026 (U11 Boys) | Standard | 2026-02-07 | 2026-02-08 | Cape Town (WCT) | 6 | 1400.5 | 6 | 4 | 1486.8 | 7.3 | Details |
| 6 | Helderberg Chess Club Open 2026 (U11 Mixed) | Standard | 2026-01-17 | 2026-01-17 | Cape Town (WCT) | 5 | 1448.4 | 5 | 2.5 | 1455.5 | 0 | Details |
| 7 | Chess Elevation Series 1 2026 (Level 3) | Standard | 2026-01-08 | 2026-01-09 | Cape Town (WCT) | 6 | 1448.4 | 5 | 1 | 1139.5 | -30.8 | Details |
| 8 | Western Cape Schools - Top Schools 2025 (U9) | Standard | 2025-09-06 | 2025-09-07 | Overberg (WOS) | 6 | 1342.8 | 6 | 6 | 1801.8 | 53.8 | Details |
| 9 | Cape Town Metro North Top Schools 2025 (U9) | Standard | 2025-08-01 | 2025-08-02 | Cape Town (WCT) | 5 | 1261.3 | 5 | 5 | 1635.4 | 35.9 | Details |
| 10 | Bellville Rapid 2025 (B) | Rapid | 2025-06-07 | 2025-06-07 | Cape Town (WCT) | 6 | 1269.6 | 6 | 3 | 1199.8 | -4.6 | Details |
| 11 | Cape Town Open Chess Festival 2025 (U10) | Standard | 2025-03-22 | 2025-03-23 | Cape Town (WCT) | 6 | 1201.7 | 6 | 3.5 | 1361.9 | 17.3 | Details |
| 12 | Steinitz Festival 2025 (U10) | Rapid | 2025-03-15 | 2025-03-15 | Cape Town (WCT) | 7 | 1201.7 | 6 | 4 | 1449.3 | 16.4 | Details |
| 13 | Western Cape Closed 2025 (U10) | Standard | 2025-03-08 | 2025-03-09 | Cape Town (WCT) | 6 | 1201.7 | 5 | 2 | 1246.7 | 3.9 | Details |
| 14 | Cape Town Open Rapid Chess Championship 2024 (U10) | Rapid | 2024-03-16 | 2024-03-16 | Cape Town (WCT) | 6 | 1200 | 6 | 3 | 1210.3 | 0.9 | Details |
Game statistics ( )
| Games | 7 |
| Wins | 3 |
| Draws | 1 |
| Losses | 3 |
| White | 3 |
| Black | 4 |
| White wins | 2 |
| Black wins | 1 |
| Score | 3.5 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1392.9 |
| Performance | 1392.9 |
Game statistics ()
| Games | 47 |
| Wins | 22 |
| Draws | 9 |
| Losses | 16 |
| White | 24 |
| Black | 23 |
| White wins | 12 |
| Black wins | 10 |
| Score | 26.5 |
| Percent | 56.4 |
| Dp | 54.3 |
| AOR | 1416.2 |
| Performance | 1470.5 |
Game statistics (History)
| Games | 87 |
| Wins | 48 |
| Draws | 10 |
| Losses | 29 |
| White | 46 |
| Black | 41 |
| White wins | 25 |
| Black wins | 23 |
| Score | 53 |
| Percent | 60.9 |
| Dp | 92.8 |
| AOR | 1351.6 |
| Performance | 1444.4 |
Rankings (Main)
| National | |
| Overall | 2094 |
| Gender | 1830 |
| Age group | 154 |
| Gender/Age | 126 |
| Provincial | |
| Overall | 625 |
| Gender | 531 |
| Age group | 48 |
| Gender/Age | 37 |
| Regional | |
| Overall | 358 |
| Gender | 316 |
| Age group | 24 |
| Gender/Age | 21 |
Rankings (Standard)
| National | |
| Overall | 2107 |
| Gender | 1808 |
| Age group | 167 |
| Gender/Age | 136 |
| Provincial | |
| Overall | 612 |
| Gender | 496 |
| Age group | 51 |
| Gender/Age | 36 |
| Regional | |
| Overall | 350 |
| Gender | 298 |
| Age group | 23 |
| Gender/Age | 19 |
Rankings (Rapid)
| National | |
| Overall | 1342 |
| Gender | 1144 |
| Age group | 165 |
| Gender/Age | 134 |
| Provincial | |
| Overall | 600 |
| Gender | 504 |
| Age group | 78 |
| Gender/Age | 59 |
| Regional | |
| Overall | 269 |
| Gender | 242 |
| Age group | 35 |
| Gender/Age | 30 |
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 | 7 |
| Score | 3.5 |
| Percent | 50 |
| Aor | 1392.9 |
| Dp | 0 |
| Prat | 1392.9 |
Performance ()
| Games | 47 |
| Score | 26.5 |
| Percent | 56.4 |
| Aor | 1416.2 |
| Dp | 54.3 |
| Prat | 1470.5 |
Performance (12 months)
| Games | 58 |
| Score | 37.5 |
| Percent | 64.7 |
| Aor | 1394.4 |
| Dp | 124.6 |
| Prat | 1519 |
Performance (History)
| Games | 87 |
| Score | 53 |
| Percent | 60.9 |
| Aor | 1351.6 |
| Dp | 92.8 |
| Prat | 1444.4 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Langenhoven, J (Jasmin-Grace) | 2 | 1 | 1 | Hermanus Chess Club Open 2026 (U12) | CTCF Open Championship 2026 (U12) | Details |
| Overall | 2 | Lin, J (Junming) | 2 | 2 | 0 | Western Cape Closed 2025 (U10) | CT Metro Schools Individual Closed 2026 (U11 Boys) | Details |
| Overall | 3 | Zwartz, Z (Zeke) | 2 | 1 | 1 | Steinitz Festival 2025 (U10) | Helderberg Chess Club Open 2026 (U11 Mixed) | Details |
| Overall | 4 | Akemdien, A (Alex) | 2 | 1 | 1 | Western Cape Closed 2025 (U10) | Steinitz Festival 2025 (U10) | Details |
| Overall | 5 | Marais, A (Alexander) | 2 | 1 | 1 | Cape Town Open Chess Festival 2025 (U10) | CT Metro Schools Individual Closed 2026 (U11 Boys) | Details |
| Standard | 1 | Lin, J (Junming) | 2 | 2 | 0 | Western Cape Closed 2025 (U10) | CT Metro Schools Individual Closed 2026 (U11 Boys) | Details |
| Standard | 2 | Marais, A (Alexander) | 2 | 1 | 1 | Cape Town Open Chess Festival 2025 (U10) | CT Metro Schools Individual Closed 2026 (U11 Boys) | Details |