| FireJack vs Kazuya | 35–26 | 57.38% |
| FireJack vs Dragunov | 20–19 | 51.28% |
| FireJack vs Heihachi | 14–19 | 42.42% |
| FireJack vs Lee | 15–17 | 46.88% |
| FireJack vs Reina | 20–12 | 62.50% |
| FireJack vs King | 14–16 | 46.67% |
| FireJack vs Yoshimitsu | 19–11 | 63.33% |
| FireJack vs Bryan | 12–17 | 41.38% |
| FireJack vs Asuka | 16–9 | 64.00% |
| FireJack vs Jin | 13–11 | 54.17% |
| FireJack vs Steve | 15–9 | 62.50% |
| FireJack vs Devil Jin | 18–6 | 75.00% |
| FireJack vs Alisa | 9–15 | 37.50% |
| FireJack vs Hwoarang | 12–11 | 52.17% |
| FireJack vs Lili | 15–7 | 68.18% |
| FireJack vs Lidia | 10–12 | 45.45% |
| FireJack vs Law | 11–10 | 52.38% |
| FireJack vs Paul | 8–9 | 47.06% |
| FireJack vs Feng | 10–5 | 66.67% |
| FireJack vs Claudio | 10–4 | 71.43% |
| FireJack vs Eddy | 6–8 | 42.86% |
| FireJack vs Lars | 3–10 | 23.08% |
| FireJack vs Azucena | 6–7 | 46.15% |
| FireJack vs Xiaoyu | 7–4 | 63.64% |
| FireJack vs Jack-8 | 8–3 | 72.73% |
| FireJack vs Zafina | 6–5 | 54.55% |
| FireJack vs Victor | 2–8 | 20.00% |
| FireJack vs Nina | 5–4 | 55.56% |
| FireJack vs Raven | 6–3 | 66.67% |
| FireJack vs Jun | 1–6 | 14.29% |
| FireJack vs Leroy | 0–6 | 0.00% |
| FireJack vs Shaheen | 2–2 | 50.00% |
| FireJack vs Clive | 2–2 | 50.00% |
| FireJack vs Leo | 2–1 | 66.67% |
| FireJack vs Kuma | 0–1 | 0.00% |
| FireJack vs Panda | 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.