| Firekeeper vs Reina | 28–47 | 37.33% |
| Firekeeper vs Hwoarang | 11–40 | 21.57% |
| Firekeeper vs Kazuya | 16–31 | 34.04% |
| Firekeeper vs Eddy | 25–20 | 55.56% |
| Firekeeper vs Paul | 16–27 | 37.21% |
| Firekeeper vs Steve | 12–31 | 27.91% |
| Firekeeper vs King | 9–29 | 23.68% |
| Firekeeper vs Jin | 4–33 | 10.81% |
| Firekeeper vs Lili | 12–22 | 35.29% |
| Firekeeper vs Asuka | 8–24 | 25.00% |
| Firekeeper vs Law | 6–25 | 19.35% |
| Firekeeper vs Victor | 4–27 | 12.90% |
| Firekeeper vs Bryan | 9–21 | 30.00% |
| Firekeeper vs Clive | 11–19 | 36.67% |
| Firekeeper vs Lidia | 8–17 | 32.00% |
| Firekeeper vs Dragunov | 3–21 | 12.50% |
| Firekeeper vs Lars | 4–18 | 18.18% |
| Firekeeper vs Jun | 11–11 | 50.00% |
| Firekeeper vs Xiaoyu | 1–18 | 5.26% |
| Firekeeper vs Yoshimitsu | 6–12 | 33.33% |
| Firekeeper vs Devil Jin | 5–13 | 27.78% |
| Firekeeper vs Alisa | 11–3 | 78.57% |
| Firekeeper vs Azucena | 7–7 | 50.00% |
| Firekeeper vs Feng | 2–9 | 18.18% |
| Firekeeper vs Nina | 3–8 | 27.27% |
| Firekeeper vs Claudio | 2–8 | 20.00% |
| Firekeeper vs Lee | 2–6 | 25.00% |
| Firekeeper vs Jack-8 | 2–5 | 28.57% |
| Firekeeper vs Leo | 3–4 | 42.86% |
| Firekeeper vs Leroy | 3–4 | 42.86% |
| Firekeeper vs Zafina | 3–3 | 50.00% |
| Firekeeper vs Shaheen | 1–4 | 20.00% |
| Firekeeper vs Kuma | 1–4 | 20.00% |
| Firekeeper vs Heihachi | 2–2 | 50.00% |
| Firekeeper vs Raven | 3–0 | 100.00% |
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.