| Speifire vs Jin | 14–17 | 45.16% |
| Speifire vs Kazuya | 12–12 | 50.00% |
| Speifire vs Reina | 18–6 | 75.00% |
| Speifire vs King | 6–13 | 31.58% |
| Speifire vs Eddy | 9–10 | 47.37% |
| Speifire vs Bryan | 8–9 | 47.06% |
| Speifire vs Azucena | 6–11 | 35.29% |
| Speifire vs Law | 7–7 | 50.00% |
| Speifire vs Hwoarang | 6–8 | 42.86% |
| Speifire vs Paul | 11–2 | 84.62% |
| Speifire vs Yoshimitsu | 6–7 | 46.15% |
| Speifire vs Steve | 10–2 | 83.33% |
| Speifire vs Feng | 6–5 | 54.55% |
| Speifire vs Alisa | 5–4 | 55.56% |
| Speifire vs Jun | 3–5 | 37.50% |
| Speifire vs Victor | 6–2 | 75.00% |
| Speifire vs Xiaoyu | 1–5 | 16.67% |
| Speifire vs Dragunov | 3–3 | 50.00% |
| Speifire vs Leo | 4–2 | 66.67% |
| Speifire vs Lars | 2–4 | 33.33% |
| Speifire vs Nina | 4–2 | 66.67% |
| Speifire vs Devil Jin | 1–3 | 25.00% |
| Speifire vs Lili | 3–1 | 75.00% |
| Speifire vs Leroy | 1–3 | 25.00% |
| Speifire vs Zafina | 2–1 | 66.67% |
| Speifire vs Asuka | 2–0 | 100.00% |
| Speifire vs Lee | 0–2 | 0.00% |
| Speifire vs Raven | 2–0 | 100.00% |
| Speifire vs Jack-8 | 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.