PLAYER PAGE
Jason Carstens
1160300801Cape Town (WCT)Personal
Main rating
| Rating | 1480 |
| K-factor | 32 |
| Floor | 922.7 |
| Highest | 1481.4 (2025-09-30) |
| Min/Max +/- allowed | 111 |
| Rating Change () | |
| Games | 7 |
| Score | 5.5 |
| We | 4.09 |
| SWe | 0.67 |
| Temp +/- | 21.3 |
| Penalties | 0 |
| Weight perform | 1508.5 |
| Final +/- | +28.5 |
| New Rating () | |
| Rating | 1508.5 |
| K-factor | 32 |
| Floor | 1008.5 |
| Highest | 1508.5 (2026-04-01) |
| Min/Max +/- allowed | 106.8 |
Standard rating
| Rating | 1480 |
| K-factor | 32 |
| Floor | 980 |
| Highest | 1480 (2026-03-01) |
| Min/Max +/- allowed | 111.3 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1470.5 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1480 |
| K-factor | 32 |
| Floor | 980 |
| Highest | 1480 (2026-03-01) |
| Min/Max +/- allowed | 111.3 |
Rapid rating
| Rating | 1239.8 |
| K-factor | 36 |
| Floor | 765.2 |
| Highest | 1265.2 (2025-04-01) |
| Min/Max +/- allowed | 151.1 |
| Rating Change () | |
| Games | 7 |
| Score | 5.5 |
| We | 2.37 |
| SWe | 3.13 |
| Temp +/- | 112.8 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | +112.8 |
| 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 | 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 |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | 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 |
| 2 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | 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 |
| 7 | Bellville Rapid 2025 (B) | Rapid | 2025-06-07 | 2025-06-07 | Cape Town (WCT) | 6 | 1269.6 | 6 | 3 | 1199.8 | -4.6 | Details |
| 8 | 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 |
| 9 | Steinitz Festival 2025 (U10) | Rapid | 2025-03-15 | 2025-03-15 | Cape Town (WCT) | 7 | 1201.7 | 6 | 4 | 1449.3 | 16.4 | Details |
| 10 | 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 |
| 11 | 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 | 5 |
| Draws | 1 |
| Losses | 1 |
| White | 4 |
| Black | 3 |
| White wins | 4 |
| Black wins | 1 |
| Score | 5.5 |
| Percent | 78.6 |
| Dp | 242.9 |
| AOR | 1413.2 |
| Performance | 1656 |
Game statistics ()
| Games | 29 |
| Wins | 14 |
| Draws | 6 |
| Losses | 9 |
| White | 15 |
| Black | 14 |
| White wins | 7 |
| Black wins | 7 |
| Score | 17 |
| Percent | 58.6 |
| Dp | 73.3 |
| AOR | 1419.9 |
| Performance | 1493.2 |
Game statistics (History)
| Games | 69 |
| Wins | 40 |
| Draws | 7 |
| Losses | 22 |
| White | 37 |
| Black | 32 |
| White wins | 20 |
| Black wins | 20 |
| Score | 43.5 |
| Percent | 63 |
| Dp | 110.9 |
| AOR | 1336.3 |
| Performance | 1447.1 |
Rankings (Main)
| National | |
| Overall | 2116 |
| Gender | 1841 |
| Age group | 139 |
| Gender/Age | 112 |
| Provincial | |
| Overall | 646 |
| Gender | 542 |
| Age group | 47 |
| Gender/Age | 35 |
| Regional | |
| Overall | 342 |
| Gender | 300 |
| Age group | 22 |
| Gender/Age | 19 |
Rankings (Standard)
| National | |
| Overall | 1986 |
| Gender | 1712 |
| Age group | 136 |
| Gender/Age | 106 |
| Provincial | |
| Overall | 576 |
| Gender | 472 |
| Age group | 46 |
| Gender/Age | 32 |
| Regional | |
| Overall | 317 |
| Gender | 274 |
| Age group | 22 |
| Gender/Age | 18 |
Rankings (Rapid)
| National | |
| Overall | 3182 |
| Gender | 2552 |
| Age group | 440 |
| Gender/Age | 339 |
| Provincial | |
| Overall | 1315 |
| Gender | 1035 |
| Age group | 194 |
| Gender/Age | 143 |
| Regional | |
| Overall | 538 |
| Gender | 470 |
| Age group | 75 |
| Gender/Age | 65 |
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 | 5.5 |
| Percent | 78.6 |
| Aor | 1413.2 |
| Dp | 242.9 |
| Prat | 1656 |
Performance ()
| Games | 29 |
| Score | 17 |
| Percent | 58.6 |
| Aor | 1419.9 |
| Dp | 73.3 |
| Prat | 1493.2 |
Performance (12 months)
| Games | 46 |
| Score | 31 |
| Percent | 67.4 |
| Aor | 1362.8 |
| Dp | 147.8 |
| Prat | 1510.6 |
Performance (History)
| Games | 69 |
| Score | 43.5 |
| Percent | 63 |
| Aor | 1336.3 |
| Dp | 110.9 |
| Prat | 1447.1 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Marais, A (Alexander) | 2 | 1 | 1 | Cape Town Open Chess Festival 2025 (U10) | CT Metro Schools Individual Closed 2026 (U11 Boys) | 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 |
| Standard | 1 | Marais, A (Alexander) | 2 | 1 | 1 | Cape Town Open Chess Festival 2025 (U10) | CT Metro Schools Individual Closed 2026 (U11 Boys) | Details |
| Standard | 2 | Lin, J (Junming) | 2 | 2 | 0 | Western Cape Closed 2025 (U10) | CT Metro Schools Individual Closed 2026 (U11 Boys) | Details |