PLAYER PAGE
Jacob Manavalan
1120314901Johannesburg Metro (GJM)Personal
Main rating
| Rating | 1391.1 |
| K-factor | 32 |
| Floor | 900.7 |
| Highest | 1400.7 (2026-07-01) |
| Min/Max +/- allowed | 125 |
| Rating Change () | |
| Games | 14 |
| Score | 5 |
| We | 8.09 |
| SWe | -2.51 |
| Temp +/- | -80.2 |
| Penalties | 0 |
| Weight perform | 1182.9 |
| Final +/- | -80.2 |
| New Rating () | |
| Rating | 1310.9 |
| K-factor | 32 |
| Floor | 900.7 |
| Highest | 1400.7 (2026-07-01) |
| Min/Max +/- allowed | 124.6 |
Standard rating
| Rating | 1383 |
| K-factor | 36 |
| Floor | 883 |
| Highest | 1383 (2026-09-01) |
| Min/Max +/- allowed | 127.8 |
| Rating Change () | |
| Games | 9 |
| Score | 2.5 |
| We | 5.18 |
| SWe | -2.68 |
| Temp +/- | -96.5 |
| Penalties | 0 |
| Weight perform | 1209.6 |
| Final +/- | -96.5 |
| New Rating () | |
| Rating | 1286.5 |
| K-factor | 36 |
| Floor | 883 |
| Highest | 1383 (2026-09-01) |
| Min/Max +/- allowed | 127.8 |
Rapid rating
| Rating | 1235.9 |
| K-factor | 36 |
| Floor | 735.9 |
| Highest | 1235.9 (2026-06-01) |
| Min/Max +/- allowed | 157.6 |
| Rating Change () | |
| Games | 5 |
| Score | 2.5 |
| We | 2.38 |
| SWe | 0.12 |
| Temp +/- | 4.4 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | +4.4 |
| New Rating () | |
| Rating | 1240.2 |
| K-factor | 36 |
| Floor | 740.2 |
| Highest | 1240.2 (2026-10-01) |
| Min/Max +/- allowed | 156.6 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2025-03-01) |
| 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 (2025-03-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Gauteng Closed Chess Championships 2026 (U16 Open) | Standard | 2026-10-17 | 2026-10-17 | Ekurhuleni (GE) | 5 | 1391.1 | 5 | 1 | 1252.7 | -20.7 | Details |
| 2 | Mzansi Spring Flower Rapid 2026 (High School) | Rapid | 2026-09-19 | 2026-09-19 | Johannesburg Metro (GJM) | 5 | 1391.1 | 5 | 2.5 | 1323 | -7.4 | Details |
| 3 | Chess Power House Heritage Day Open 2026 (B) | Standard | 2026-09-24 | 2026-09-24 | Johannesburg Metro (GJM) | 5 | 1391.1 | 4 | 1.5 | 888.1 | -52 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Midrand Juniors Classical Tournament 2026 (U16) | Standard | 2026-08-29 | 2026-08-29 | Johannesburg Metro (GJM) | 5 | 1391.1 | 5 | 3 | 1442 | 15.1 | Details |
| 2 | JMC Closed 2026 (C) | Standard | 2026-08-01 | 2026-08-02 | Johannesburg Metro (GJM) | 5 | 1391.1 | 5 | 3.5 | 1452.6 | 18.1 | Details |
| 3 | MCA Winter Chill Classic 2026 (Intermediate) | Standard | 2026-07-25 | 2026-07-25 | Johannesburg Metro (GJM) | 5 | 1400.7 | 5 | 2 | 1328.8 | -10.1 | Details |
| 4 | 4th Khelo India - LCA Chess Tournament 2026 (A+B) | Standard | 2026-07-11 | 2026-07-12 | Johannesburg Metro (GJM) | 5 | 1400.7 | 5 | 1 | 1185.1 | -32.6 | Details |
| 5 | JMC Trinityhouse Randpark Ridge 2026 (D) | Standard | 2026-06-27 | 2026-06-27 | Johannesburg Metro (GJM) | 5 | 1256 | 5 | 4 | 1536.3 | 48 | Details |
| 6 | Elise Steenkamp 2026 (Rook) | Standard | 2026-06-13 | 2026-06-15 | Tshwane (GTP) | 7 | 1256 | 7 | 3 | 1154.5 | -29.5 | Details |
| 7 | JMC Helpmekaar 2026 (D) | Standard | 2026-05-31 | 2026-05-31 | Johannesburg Metro (GJM) | 5 | 1256 | 5 | 4.5 | 1596.5 | 58.6 | Details |
| 8 | JMC Crawford Sandton Rapid 2026 (Open) | Rapid | 2026-05-09 | 2026-05-09 | Johannesburg Metro (GJM) | 5 | 1215.5 | 5 | 2.5 | 1494 | 35.7 | Details |
| 9 | 3rd KHELO INDIA - LCA Chess Tournament 2026 (B) | Standard | 2026-04-18 | 2026-04-19 | Johannesburg Metro (GJM) | 5 | 1222.7 | 5 | 2.5 | 1218.1 | -2 | Details |
| 10 | Fourth Knight Riders Open Chess Tournament 2026 (B+C) | Standard | 2026-04-11 | 2026-04-11 | Johannesburg Metro (GJM) | 5 | 1222.7 | 4 | 1 | 1187.9 | -5.2 | Details |
| 11 | MCA Summer Heat Classic 2026 (Junior) | Standard | 2026-03-21 | 2026-03-21 | Johannesburg Metro (GJM) | 5 | 1247.3 | 5 | 2.5 | 1195.8 | -7.7 | Details |
| 12 | JMC Trinityhouse Little Falls (D) | Standard | 2026-02-28 | 2026-02-28 | Johannesburg Metro (GJM) | 5 | 1247.3 | 5 | 2 | 1143.8 | -16.9 | Details |
| 13 | 2nd Knight Riders Juniors Open Chess Tournament 2026 (A+B) | Standard | 2026-02-21 | 2026-02-21 | Johannesburg Metro (GJM) | 5 | 1237.2 | 4 | 1 | 1102.7 | -10.5 | Details |
| 14 | MCA Welcome JHB 2026 (Junior) | Standard | 2026-02-07 | 2026-02-07 | Johannesburg Metro (GJM) | 5 | 1237.2 | 5 | 5 | 1667.4 | 28.1 | Details |
| 15 | 2026 JMC Kick off Tournament (D) | Standard | 2026-02-01 | 2026-02-01 | Johannesburg Metro (GJM) | 5 | 1237.2 | 4 | 1 | 919.4 | -24.9 | Details |
| 16 | First Knight Riders Juniors Open Chess Tournament 2026 (C) | Standard | 2026-01-17 | 2026-01-17 | Johannesburg Metro (GJM) | 5 | 1200.1 | 5 | 3 | 1420.9 | 7.7 | Details |
| 17 | MCA Winter Chill Classic 2025 (Junior) | Standard | 2025-07-19 | 2025-07-19 | Johannesburg Metro (GJM) | 5 | 1201.7 | 4 | 0 | 814.1 | -30.4 | Details |
| 18 | 2nd Knight Riders Junior Open 2025 (C) | Standard | 2025-03-23 | 2025-03-23 | Johannesburg Metro (GJM) | 5 | 1222.2 | 5 | 0.5 | 878.6 | -34.2 | Details |
| 19 | First Knights Juniors Chess Tournament 2025 (D) | Standard | 2025-02-09 | 2025-02-09 | Johannesburg Metro (GJM) | 5 | 1200 | 4 | 3 | 1341.1 | 11.1 | Details |
Game statistics ( )
| Games | 5 |
| Wins | 1 |
| Draws | 0 |
| Losses | 4 |
| White | 2 |
| Black | 3 |
| White wins | 0 |
| Black wins | 1 |
| Score | 1 |
| Percent | 20 |
| Dp | -255 |
| AOR | 1507.7 |
| Performance | 1252.7 |
Game statistics ()
| Games | 93 |
| Wins | 43 |
| Draws | 7 |
| Losses | 43 |
| White | 45 |
| Black | 48 |
| White wins | 21 |
| Black wins | 22 |
| Score | 46.5 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1298.5 |
| Performance | 1298.5 |
Game statistics (History)
| Games | 106 |
| Wins | 46 |
| Draws | 8 |
| Losses | 52 |
| White | 52 |
| Black | 54 |
| White wins | 22 |
| Black wins | 24 |
| Score | 50 |
| Percent | 47.2 |
| Dp | -24.1 |
| AOR | 1286.1 |
| Performance | 1262 |
Rankings (Main)
| National | |
| Overall | 3763 |
| Gender | 3175 |
| Age group | 522 |
| Gender/Age | 421 |
| Provincial | |
| Overall | 1287 |
| Gender | 1090 |
| Age group | 182 |
| Gender/Age | 144 |
| Regional | |
| Overall | 381 |
| Gender | 338 |
| Age group | 42 |
| Gender/Age | 34 |
Rankings (Standard)
| National | |
| Overall | 3487 |
| Gender | 2897 |
| Age group | 513 |
| Gender/Age | 412 |
| Provincial | |
| Overall | 1252 |
| Gender | 1054 |
| Age group | 185 |
| Gender/Age | 148 |
| Regional | |
| Overall | 360 |
| Gender | 318 |
| Age group | 42 |
| Gender/Age | 34 |
Rankings (Rapid)
| 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 |
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 | 5 |
| Score | 1 |
| Percent | 20 |
| Aor | 1507.7 |
| Dp | -255 |
| Prat | 1252.7 |
Performance ()
| Games | 93 |
| Score | 46.5 |
| Percent | 50 |
| Aor | 1298.5 |
| Dp | 0 |
| Prat | 1298.5 |
Performance (12 months)
| Games | 93 |
| Score | 46.5 |
| Percent | 50 |
| Aor | 1298.5 |
| Dp | 0 |
| Prat | 1298.5 |
Performance (History)
| Games | 106 |
| Score | 50 |
| Percent | 47.2 |
| Aor | 1286.1 |
| Dp | -24.1 |
| Prat | 1262 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Maduna, A (Asanda) | 3 | 2 | 1 | First Knights Juniors Chess Tournament 2025 (D) | JMC Trinityhouse Randpark Ridge 2026 (D) | Details |
| Overall | 2 | Subroyen, J (Jeevesh) | 3 | 2 | 1 | First Knight Riders Juniors Open Chess Tournament 2026 (C) | Midrand Juniors Classical Tournament 2026 (U16) | Details |
| Overall | 3 | Mitra, S (Soham) | 3 | 3 | 0 | JMC Trinityhouse Little Falls (D) | Midrand Juniors Classical Tournament 2026 (U16) | Details |
| Overall | 4 | Mathibe, K (Koketso) | 2 | 1 | 1 | 2nd Knight Riders Junior Open 2025 (C) | First Knight Riders Juniors Open Chess Tournament 2026 (C) | Details |
| Overall | 5 | Lochner, C (Christiaan) | 2 | 0 | 2 | JMC Trinityhouse Little Falls (D) | JMC Helpmekaar 2026 (D) | Details |
| Standard | 1 | Mitra, S (Soham) | 3 | 3 | 0 | JMC Trinityhouse Little Falls (D) | Midrand Juniors Classical Tournament 2026 (U16) | Details |
| Standard | 2 | Maduna, A (Asanda) | 3 | 2 | 1 | First Knights Juniors Chess Tournament 2025 (D) | JMC Trinityhouse Randpark Ridge 2026 (D) | Details |
| Standard | 3 | Bijker, X (Xander) | 2 | 0 | 2 | JMC Trinityhouse Randpark Ridge 2026 (D) | JMC Closed 2026 (C) | Details |
| Standard | 4 | Mathibe, K (Koketso) | 2 | 1 | 1 | 2nd Knight Riders Junior Open 2025 (C) | First Knight Riders Juniors Open Chess Tournament 2026 (C) | Details |
| Standard | 5 | Mofokeng, L (Lethabo) | 2 | 2 | 0 | 3rd KHELO INDIA - LCA Chess Tournament 2026 (B) | Elise Steenkamp 2026 (Rook) | Details |