| firework vs Reina | 16–7 | 69.57% |
| firework vs Dragunov | 12–5 | 70.59% |
| firework vs Hwoarang | 9–7 | 56.25% |
| firework vs Heihachi | 8–6 | 57.14% |
| firework vs Paul | 6–7 | 46.15% |
| firework vs Jin | 5–7 | 41.67% |
| firework vs Bryan | 5–7 | 41.67% |
| firework vs Kazuya | 8–4 | 66.67% |
| firework vs King | 7–4 | 63.64% |
| firework vs Law | 4–5 | 44.44% |
| firework vs Clive | 5–4 | 55.56% |
| firework vs Lili | 2–5 | 28.57% |
| firework vs Feng | 4–2 | 66.67% |
| firework vs Leo | 3–3 | 50.00% |
| firework vs Azucena | 2–4 | 33.33% |
| firework vs Steve | 4–1 | 80.00% |
| firework vs Claudio | 4–1 | 80.00% |
| firework vs Nina | 4–1 | 80.00% |
| firework vs Kuma | 1–3 | 25.00% |
| firework vs Victor | 1–3 | 25.00% |
| firework vs Lee | 1–2 | 33.33% |
| firework vs Leroy | 1–2 | 33.33% |
| firework vs Lars | 0–2 | 0.00% |
| firework vs Alisa | 0–2 | 0.00% |
| firework vs Zafina | 2–0 | 100.00% |
| firework vs Jun | 0–2 | 0.00% |
| firework vs Eddy | 0–2 | 0.00% |
| firework vs Lidia | 0–2 | 0.00% |
| firework vs Xiaoyu | 1–0 | 100.00% |
| firework vs Devil Jin | 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.