| Firefly_XY vs Dragunov | 9–6 | 60.00% |
| Firefly_XY vs King | 5–4 | 55.56% |
| Firefly_XY vs Reina | 2–5 | 28.57% |
| Firefly_XY vs Xiaoyu | 5–1 | 83.33% |
| Firefly_XY vs Kazuya | 2–4 | 33.33% |
| Firefly_XY vs Asuka | 4–2 | 66.67% |
| Firefly_XY vs Yoshimitsu | 2–3 | 40.00% |
| Firefly_XY vs Jin | 0–5 | 0.00% |
| Firefly_XY vs Leroy | 3–2 | 60.00% |
| Firefly_XY vs Raven | 2–3 | 40.00% |
| Firefly_XY vs Victor | 4–0 | 100.00% |
| Firefly_XY vs Feng | 2–1 | 66.67% |
| Firefly_XY vs Lili | 2–1 | 66.67% |
| Firefly_XY vs Kuma | 1–2 | 33.33% |
| Firefly_XY vs Azucena | 1–2 | 33.33% |
| Firefly_XY vs Hwoarang | 0–2 | 0.00% |
| Firefly_XY vs Bryan | 2–0 | 100.00% |
| Firefly_XY vs Steve | 0–2 | 0.00% |
| Firefly_XY vs Devil Jin | 0–2 | 0.00% |
| Firefly_XY vs Leo | 0–2 | 0.00% |
| Firefly_XY vs Zafina | 0–2 | 0.00% |
| Firefly_XY vs Law | 0–1 | 0.00% |
| Firefly_XY vs Lars | 1–0 | 100.00% |
| Firefly_XY vs Lee | 0–1 | 0.00% |
| Firefly_XY vs Jun | 1–0 | 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.