FPX vs Acend - Masters 1.
actually the first ever valorant esports match (that I could find) was a group stage match in the COOLER Cup Invitational between BOOMER and Ninjas in Pyjamas, played on April 25, 2020 at 3;39 PM UTC, NIP won 13-1
https://play.toornament.com/en_US/tournaments/3507398244394885120/matches/3507403461510823979/
https://www.vlr.gg/191/prodigy-vs-fish123-cooler-cup-playoffs-qf
1.00 PM
edit: I think the timezones are mixing up so I actually dont know
Pittsburgh Knights Charity Invitational was one of the first (if not the first) tournament that was pure eSports (not showmatch, twitch, etc).
This had a qualifier that started on April 18th, 2020, towards the beginning of Valorant Beta.
Qualifier was won by the 5 men team that transferred from PubG (HighGround), 4 players of which would end up on 100T alongside Hiko.
Main event was won by mSpaz by beating Highground in the final. mSpaz (mouseSpaz) was an earlier version of TSM (without Wardell and Subroza). This event final took place on April 24th, 2020.
There you go, some history lessons (: