| Regan vs Kazuya | 6–7 | 46.15% |
| Regan vs King | 3–8 | 27.27% |
| Regan vs Jin | 3–7 | 30.00% |
| Regan vs Bryan | 2–7 | 22.22% |
| Regan vs Alisa | 6–3 | 66.67% |
| Regan vs Law | 2–6 | 25.00% |
| Regan vs Reina | 5–2 | 71.43% |
| Regan vs Jack-8 | 4–2 | 66.67% |
| Regan vs Dragunov | 2–4 | 33.33% |
| Regan vs Xiaoyu | 2–3 | 40.00% |
| Regan vs Lili | 3–2 | 60.00% |
| Regan vs Lars | 2–3 | 40.00% |
| Regan vs Claudio | 4–1 | 80.00% |
| Regan vs Victor | 2–3 | 40.00% |
| Regan vs Hwoarang | 2–2 | 50.00% |
| Regan vs Asuka | 2–2 | 50.00% |
| Regan vs Devil Jin | 4–0 | 100.00% |
| Regan vs Lee | 1–3 | 25.00% |
| Regan vs Kuma | 1–3 | 25.00% |
| Regan vs Leroy | 0–4 | 0.00% |
| Regan vs Steve | 1–2 | 33.33% |
| Regan vs Azucena | 3–0 | 100.00% |
| Regan vs Paul | 2–0 | 100.00% |
| Regan vs Feng | 0–2 | 0.00% |
| Regan vs Leo | 0–2 | 0.00% |
| Regan vs Zafina | 1–1 | 50.00% |
| Regan vs Jun | 1–1 | 50.00% |
| Regan vs Eddy | 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.