Ishibashi, Koutarou
Current rating: 1469
Record: 0-0 (GP) / 9-18 (professional)
| New Capenna Championship (MTGA mixed) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 30 | Wiktorzak, Piotr (1803) | Won 2-1 | +241514 |
| 2standard | 43 | Liu, Tianguang (1552) | Lost 0-2 | -171497 |
| 3standard | 32 | Goertzen, Dominik (2029) | Lost 0-2 | -91488 |
| 4historic | 57 | Medeiros Merjam, Guilherme (1740) | Lost 1-2 | -141474 |
| 5historic | 79 | Harvey, Dominic (1613) | Lost 0-2 | -151459 |
| 6historic | 95 | Wilson, Jacob (1836) | Lost 1-2 | -121447 |
| 7historic | 91 | Tonouchi, Keita (1645) | Won 2-0 | +221469 |
| top | average opponent: 1745record: 2-5 | new rating: 1469 | ||
| Zendikar Rising Championship (MTGA mixed) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1historic | 85 | Gauthier, Martin-Eric (1900) | Won 2-1 | +251503 |
| 2historic | 18 | Fortsch, Ulrich (1520) | Won 2-0 | +191522 |
| 3historic | 16 | Merkel, Jan-Moritz (1869) | Lost 0-2 | -121510 |
| 4standard | 33 | Harane, Kenta (1925) | Won 2-0 | +251535 |
| 5standard | 16 | Burkhart, Corey (1919) | Lost 1-2 | -121523 |
| 6standard | 36 | Inglis, David [USA] (1672) | Lost 1-2 | -151508 |
| 7standard | 35 | Rashid, Asfandyar (1527) | Lost 1-2 | -181490 |
| top | average opponent: 1762record: 3-4 | new rating: 1490 | ||
| Players Tour Online 2 (MTGA IKO standard) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 48 | Depraz, Jean-Emmanuel (1931) | Lost 0-2 | -101458 |
| 2standard | 89 | Longlais, Lucien (1770) | Lost 1-2 | -121446 |
| 3standard | 102 | King, Nicolas (1467) | Lost 0-2 | -181428 |
| 4standard | 110 | Siow, Lucas (1877) | Won 2-0 | +261454 |
| 5standard | 92 | Semenov, Petr (1825) | Won 2-0 | +241478 |
| 6standard | 71 | Puls, Matt (1664) | Won 2-1 | +221500 |
| 7standard | 47 | Dunn, Zach (1906) | Lost 0-2 | -111489 |
| 8standard | 79 | Lossett, Joe (1909) | Lost 1-2 | -111478 |
| top | average opponent: 1794record: 3-5 | new rating: 1478 | ||
| Players Tour Nagoya 2020 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 68 | Hilario, Jose Gabriel (1628) | Lost 1-2 | -161484 |
| 2draft | 66 | Gibson, Kyle (1886) | Lost 0-2 | -111473 |
| 3draft | 51 | Kobayashi, Tatsuumi (1825) | Lost 0-2 | -121461 |
| 4pioneer | 88 | Suzuike, Fumiyasu (1671) | Won 2-1 | +221483 |
| 5pioneer | 70 | Yu, Hung-Yi (1663) | Lost 0-2 | -151468 |
| top | average opponent: 1735record: 1-4 | new rating: 1468 | ||