Witt, Walter
Current rating: 1541
Record: 32-19-3 (GP) / 4-12 (professional)
| Grand Prix Santiago 2017 (AKH standard) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 8 | Herrera Chandia, Humberto (1429) | Won 2-0 | +161548 |
| 2standard | 153 | Isla, Francisco (1463) | Lost 0-2 | -191529 |
| 3standard | 263 | Escobar, Frederick (1494) | Lost 0-2 | -191510 |
| 4standard | 326 | Barrientos Campos, Waldemar (1594) | Lost 1-2 | -171493 |
| 5standard | 305 | Zuniga, Jorge (1449) | Won 2-0 | +181511 |
| 6standard | 238 | Capozzoli, Roberto (1405) | Won 2-0 | +161527 |
| 7standard | 226 | Carrizo, Ivan Alejandro (1463) | Won 2-1 | +171544 |
| 8standard | 191 | Vilches, Oscar (1443) | Won 2-1 | +161560 |
| 9standard | 142 | Reartes, Daniel (1542) | Lost 1-2 | -191541 |
| top | average opponent: 1476record: 5-4 | new rating: 1541 | ||
| Grand Prix Santiago 2016 (KLD standard) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 20 | Morales, Gonzalo (1511) | Lost 0-2 | -201580 |
| 2standard | 265 | Varela, Gabriel (1480) | Won 1-0 | +161596 |
| 3standard | 179 | Silva Matamala, Carlos (1501) | Lost 1-2 | -191577 |
| 4standard | 308 | Manriquez, Mauricio (1450) | Lost 0-2 | -211556 |
| 5standard | 318 | Arredondo, Juan Francisco (1463) | Won 2-1 | +171573 |
| 6standard | 262 | Vejar, Fernando (1413) | Lost 1-2 | -211552 |
| 7standard | 268 | Coronado Gonzalez, Jonathan (1451) | Lost 0-2 | -201532 |
| top | average opponent: 1467record: 2-5 | new rating: 1532 | ||
| Grand Prix Santiago 2015 (ORI limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 282 | domenici, federico (1500) | Won 2-1 | +181516 |
| 2sealed | 13 | Chong, Cristian (1716) | Won 2-1 | +221538 |
| 3sealed | 140 | Perez, Andres E (1674) | Lost 1-2 | -151523 |
| 4sealed | 112 | Palominos, Luis (1517) | Won 2-0 | +171540 |
| 5sealed | 105 | Fuenzalida, Darwin (1600) | Won 2-1 | +201560 |
| 6sealed | 45 | Gayoso, Rodrigo (1566) | Won 2-1 | +181578 |
| 7sealed | 25 | Campos, Luis (1456) | Lost 1-2 | -211557 |
| 8sealed | 83 | Astroza Tagle, Alonso (1616) | Won 2-1 | +201577 |
| 9sealed | 23 | de Jesus Freitas, Marcos Paulo (1879) | Won 2-1 | +231600 |
| top | average opponent: 1614record: 7-2 | new rating: 1600 | ||
| Grand Prix Buenos Aires 2015 (DTK standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 127 | Mujica, Felipe (1500) | Won 2-0 | +181537 |
| 2standard | 38 | Inafuku, Christian (1566) | Lost 1-2 | -181519 |
| 3standard | 257 | Moyano, Manuel (1500) | Lost 1-2 | -181501 |
| 4standard | 287 | Ponce, Mauro (1481) | Won 2-1 | +171518 |
| 5standard | 246 | Morala, Ivan (1503) | Lost 1-2 | -181500 |
| 6standard | 217 | Perez, Christian Andre (1479) | Won 2-1 | +181518 |
| 7standard | 167 | Rodriguez, leonardo (1498) | Won 2-0 | +171535 |
| 8standard | 154 | Saotome, Yukiyo (1511) | Lost 0-2 | -181517 |
| 9standard | 140 | Barlaro, Guido (1489) | Lost 1-2 | -191498 |
| top | average opponent: 1503record: 4-5 | new rating: 1498 | ||
| Grand Prix Santiago 2001 (Invasion block) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 34 | Reutter, Juan (1461) | Lost 1-2 | -191484 |
| 4block | 48 | Contreras, Hugo (1518) | Won 2-0 | +181502 |
| 5block | 46 | Carisimo, Oscar (1494) | Draw 1-1 | 01502 |
| 6block | 46 | Gaete, Francisco (1415) | Draw 1-1 | -11501 |
| 7block | 61 | Chacaltana, Mario (1519) | Won 2-0 | +181519 |
| top | average opponent: 1481record: 2-1-2 | new rating: 1519 | ||
| 2001 World Championship (mixed) | starting rating: 1675 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 104 | Tanaka, Marcos Teruo (1517) | Won 2-0 | +151690 |
| 2standard | 47 | Boura, Evzen (1508) | Lost 0-2 | -211669 |
| 3standard | 81 | Ostrovich, Diego (1565) | Lost 1-2 | -201649 |
| 4standard | 106 | Lavs, Primoz (1503) | Lost 1-2 | -211628 |
| 5standard | 119 | Bialek, Szymon (1477) | Lost 1-2 | -201608 |
| 6standard | 132 | Coelho, Helder (1581) | Lost 1-2 | -191589 |
| 7rochester | 34 | Linde, Matt (1565) | Lost 1-2 | -181571 |
| 8rochester | 123 | Witt, Alexander (1715) | Lost 1-2 | -161555 |
| 9rochester | 131 | Odegaard, Oyvind (1723) | Lost 0-2 | -151540 |
| 10rochester | 26 | Tam, Wing Lok (1437) | Lost 0-2 | -191521 |
| 11rochester | 34 | Mao, Carlos (1416) | Lost 1-2 | -201501 |
| 13extended | 141 | Kearns, Jeff (1352) | Lost 0-2 | -211480 |
| 15extended | 135 | Escobar Reyes, Juan E. (1219) | Won 2-1 | +131493 |
| 16extended | 130 | Fisher, Michael (1373) | Lost 0-2 | -201473 |
| 17extended | 129 | Pello, Ray (1369) | Won 2-0 | +161489 |
| 18extended | 123 | Mirara, Russel (1226) | Won 2-0 | +141503 |
| top | average opponent: 1472record: 4-12 | new rating: 1503 | ||
| Grand Prix Buenos Aires 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 65 | Rios, Servando (1500) | Won 2-0 | +181518 |
| 2extended | 2 | Aguero, Carlos (1518) | Won 2-0 | +181536 |
| 3extended | 12 | Spaghi, Martin (1536) | Lost 0-2 | -181518 |
| 4extended | 48 | Argento, Alejandro (1518) | Won 2-1 | +181536 |
| 5extended | 29 | Gutkin, Hernan (1536) | Won 2-0 | +181554 |
| 6extended | 31 | Hernandez C., Cesar (1500) | Won 2-0 | +171571 |
| 7extended | 17 | Carisimo, Oscar (1570) | ID | 01571 |
| 8extended | 15 | Svaldi, Guilherme (1552) | Won 2-0 | +181589 |
| 9extended | 11 | VIOLA, ANDRES (1586) | Won 2-1 | +181607 |
| 10extended | 5 | Romao, Carlos (1578) | Draw 1-1 | -11606 |
| 11extended | 9 | Caligaris, Gabriel (1610) | Won 2-0 | +181624 |
| 12extended | 6 | Hino, Celso Mitsuo (1555) | Won 2-1 | +171641 |
| 13extended | 4 | Gramajo, Bernabe (1575) | Won 2-1 | +171658 |
| Qextended | Ostrovich, Diego (1594) | Won 2-1 | +171675 | |
| Sextended | Le Saux, Rafael (1730) | Won 0-0 | +191694 | |
| Fextended | Araiza, Hugo Daniel (1667) | Lost 1-2 | -191675 | |
| top | average opponent: 1570record: 12-2-2 | new rating: 1675 | ||