| Player | vs | Player |
| Simon Görtzen | vs | John Rolf |
| Matthew Nass | vs | Ashley Espinoza |
| Piotr Glogowski | vs | Kentaro Yamamoto |
| Carlos Romao | vs | Eric Froehlich |
| Lee Shi Tian | vs | Greg Orange |
| Nicholas Carlson | Jessica Estephan | |
| Marcio Carvalho | vs | Matias Leveratto |
| Autumn Burchett | vs | Shota Yasooka |
| Andrea Mengucci | vs | Jean Emmanuel Depraz |
| Andrew Elenbogen | vs | Raphaël Lévy |
| Ben Stark | vs | Yuki Matsuda |
| Marcin Tokajuk | vs | Christian Hauck |
| Yuma Koizumi | vs | Janne Mikkonen |
| Giana Kaplan | vs | Alexander Hayne |
| Teresa Pho | vs | Seth Manfield |
| Jason Chan | vs | Jeffrey Brusi |
| Allen Wu | vs | William Jensen |
| Corey Burkhart | vs | Wyatt Darby |
| Kai Budde | vs | Vanessa Hinostroza |
| Shahar Shenhar | vs | Martin Juza |
| Luis Salvatto | vs | Luis Scott Vargas |
| Lucas Esper Berthoud | vs | Patrick Fernandes |
| Noah Walker | vs | Andrew Cuneo |
| Reid Duke | vs | Eric Oresick |
| CJ Steele | vs | PauloVitor DamodaRosa |
| Grzegorz Kowalski | vs | Javier Dominguez |
| Takashi Iwasaki | vs | Evan Gascoyne |
| Audrey Zoschak | vs | Nhi Pham |
| Amy Demicco | vs | Mike Sigrist |
| Ben Hull | vs | Ondrej Strasky |
| Alexey Shashov | vs | André Santos |
| Montserrat Ayensa | vs | Emma Handy |
MTG Arena Mythic III Round 3 Pairings
June 21, 2019
Wizards of the Coast