I keep seeing people say it comes down to map differential then round differential and I'm seeing others say its just a h2h so how does it actually work?
It’s h2h first. Rest is here https://liquipedia.net/valorant/VCT/2025/Americas_League/Stage_1/Group_Stage, click “Click here for tiebreaker rules”
So I’m assuming you’re asking what happens in a three way tie (if FNC, TH, and NAVI are all 4-1). Since in this case FNC > NAVI > TH > FNC, there’s an unresolved three way tie and it goes to map differential, if map is tied it goes to round differential
“3-way tie
Head-to-head Match Series
Teams with two matchup head-to-head advantage automatically receives first of the group. Tie-breakers for the remaining two teams are determined using the above head-to-head tiebreaker process.
If no team has a two matchup head-to-head advantage (all Teams are 1-1 head-to-head), then proceed to next step of the 3-way tie-breaker process.
Map differential”
I think it's like
If X and Y have the same win/loss, then the team which won in their encounter (X vs Y) is placed higher.
For map/diff/round diff
Suppose three teams X, Y and Z
If X beat Y, Y beat Z, and Z beat X, and all three teams have the same win/loss, then the team with a better map differential is placed higher. If all three teams have the same map differential, it moves onto round differential.