| Firas vs King | 16–11 | 59.26% |
| Firas vs Jin | 12–9 | 57.14% |
| Firas vs Kazuya | 12–9 | 57.14% |
| Firas vs Lee | 13–4 | 76.47% |
| Firas vs Asuka | 10–6 | 62.50% |
| Firas vs Dragunov | 7–8 | 46.67% |
| Firas vs Bryan | 5–8 | 38.46% |
| Firas vs Yoshimitsu | 4–8 | 33.33% |
| Firas vs Steve | 5–5 | 50.00% |
| Firas vs Feng | 2–8 | 20.00% |
| Firas vs Hwoarang | 3–5 | 37.50% |
| Firas vs Devil Jin | 7–1 | 87.50% |
| Firas vs Lars | 5–3 | 62.50% |
| Firas vs Anna | 5–1 | 83.33% |
| Firas vs Paul | 4–1 | 80.00% |
| Firas vs Law | 1–4 | 20.00% |
| Firas vs Victor | 1–4 | 20.00% |
| Firas vs Heihachi | 4–1 | 80.00% |
| Firas vs Fahkumram | 2–2 | 50.00% |
| Firas vs Xiaoyu | 1–2 | 33.33% |
| Firas vs Lili | 2–1 | 66.67% |
| Firas vs Alisa | 1–2 | 33.33% |
| Firas vs Jun | 1–2 | 33.33% |
| Firas vs Clive | 3–0 | 100.00% |
| Firas vs Armor King | 0–3 | 0.00% |
| Firas vs Azucena | 2–0 | 100.00% |
| Firas vs Raven | 2–0 | 100.00% |
| Firas vs Lidia | 1–1 | 50.00% |
| Firas vs Jack-8 | 1–0 | 100.00% |
| Firas vs Claudio | 0–1 | 0.00% |
| Firas vs Nina | 0–1 | 0.00% |
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.