| Feirsteax vs Eddy | 3–13 | 18.75% |
| Feirsteax vs Jun | 7–7 | 50.00% |
| Feirsteax vs Law | 6–7 | 46.15% |
| Feirsteax vs King | 9–3 | 75.00% |
| Feirsteax vs Jin | 3–9 | 25.00% |
| Feirsteax vs Bryan | 5–7 | 41.67% |
| Feirsteax vs Kazuya | 4–7 | 36.36% |
| Feirsteax vs Reina | 4–7 | 36.36% |
| Feirsteax vs Yoshimitsu | 5–5 | 50.00% |
| Feirsteax vs Lili | 4–6 | 40.00% |
| Feirsteax vs Hwoarang | 1–7 | 12.50% |
| Feirsteax vs Devil Jin | 4–4 | 50.00% |
| Feirsteax vs Steve | 6–1 | 85.71% |
| Feirsteax vs Alisa | 4–3 | 57.14% |
| Feirsteax vs Xiaoyu | 2–4 | 33.33% |
| Feirsteax vs Asuka | 1–4 | 20.00% |
| Feirsteax vs Azucena | 2–3 | 40.00% |
| Feirsteax vs Leo | 1–3 | 25.00% |
| Feirsteax vs Lars | 2–2 | 50.00% |
| Feirsteax vs Lee | 2–2 | 50.00% |
| Feirsteax vs Feng | 1–2 | 33.33% |
| Feirsteax vs Nina | 0–3 | 0.00% |
| Feirsteax vs Jack-8 | 2–0 | 100.00% |
| Feirsteax vs Leroy | 2–0 | 100.00% |
| Feirsteax vs Paul | 0–1 | 0.00% |
| Feirsteax vs Dragunov | 1–0 | 100.00% |
| Feirsteax vs Kuma | 1–0 | 100.00% |
| Feirsteax vs Zafina | 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.