| Firo vs Kazuya | 152–167–1 | 47.65% |
| Firo vs King | 130–138 | 48.51% |
| Firo vs Hwoarang | 124–125–1 | 49.80% |
| Firo vs Jin | 119–131 | 47.60% |
| Firo vs Bryan | 108–116 | 48.21% |
| Firo vs Reina | 92–88 | 51.11% |
| Firo vs Dragunov | 98–80 | 55.06% |
| Firo vs Paul | 71–106 | 40.11% |
| Firo vs Steve | 83–94 | 46.89% |
| Firo vs Yoshimitsu | 87–89 | 49.43% |
| Firo vs Law | 98–75 | 56.65% |
| Firo vs Lili | 74–70 | 51.39% |
| Firo vs Devil Jin | 35–87 | 28.69% |
| Firo vs Eddy | 76–43 | 63.87% |
| Firo vs Lee | 56–54 | 50.91% |
| Firo vs Azucena | 54–52 | 50.94% |
| Firo vs Jun | 52–47 | 52.53% |
| Firo vs Asuka | 32–61 | 34.41% |
| Firo vs Alisa | 48–44 | 52.17% |
| Firo vs Victor | 46–43 | 51.69% |
| Firo vs Lars | 32–55 | 36.78% |
| Firo vs Nina | 34–50 | 40.48% |
| Firo vs Xiaoyu | 33–48 | 40.74% |
| Firo vs Armor King | 35–45 | 43.75% |
| Firo vs Feng | 38–39 | 49.35% |
| Firo vs Heihachi | 30–47 | 38.96% |
| Firo vs Raven | 29–31 | 48.33% |
| Firo vs Leroy | 23–34 | 40.35% |
| Firo vs Leo | 31–25 | 55.36% |
| Firo vs Claudio | 13–31 | 29.55% |
| Firo vs Jack-8 | 23–18 | 56.10% |
| Firo vs Anna | 14–20 | 41.18% |
| Firo vs Lidia | 15–16 | 48.39% |
| Firo vs Shaheen | 9–21 | 30.00% |
| Firo vs Miary Zo | 15–15 | 50.00% |
| Firo vs Fahkumram | 13–14 | 48.15% |
| Firo vs Panda | 11–15 | 42.31% |
| Firo vs Kuma | 9–14 | 39.13% |
| Firo vs Clive | 9–11 | 45.00% |
| Firo vs Zafina | 8–8 | 50.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.