| Little Roach vs Reina | 19–6 | 76.00% |
| Little Roach vs Eddy | 9–14 | 39.13% |
| Little Roach vs Jin | 8–8 | 50.00% |
| Little Roach vs King | 9–4 | 69.23% |
| Little Roach vs Steve | 8–4 | 66.67% |
| Little Roach vs Asuka | 7–5 | 58.33% |
| Little Roach vs Heihachi | 3–8 | 27.27% |
| Little Roach vs Kazuya | 3–7 | 30.00% |
| Little Roach vs Leroy | 6–4 | 60.00% |
| Little Roach vs Lars | 6–3 | 66.67% |
| Little Roach vs Law | 4–4 | 50.00% |
| Little Roach vs Victor | 6–2 | 75.00% |
| Little Roach vs Yoshimitsu | 2–5 | 28.57% |
| Little Roach vs Hwoarang | 3–3 | 50.00% |
| Little Roach vs Lili | 2–4 | 33.33% |
| Little Roach vs Dragunov | 4–2 | 66.67% |
| Little Roach vs Feng | 3–2 | 60.00% |
| Little Roach vs Leo | 0–5 | 0.00% |
| Little Roach vs Claudio | 2–3 | 40.00% |
| Little Roach vs Bryan | 3–1 | 75.00% |
| Little Roach vs Devil Jin | 2–2 | 50.00% |
| Little Roach vs Lee | 2–2 | 50.00% |
| Little Roach vs Jun | 4–0 | 100.00% |
| Little Roach vs Azucena | 2–2 | 50.00% |
| Little Roach vs Raven | 2–2 | 50.00% |
| Little Roach vs Alisa | 3–0 | 100.00% |
| Little Roach vs Paul | 2–0 | 100.00% |
| Little Roach vs Jack-8 | 0–2 | 0.00% |
| Little Roach vs Kuma | 0–2 | 0.00% |
| Little Roach vs Lidia | 0–2 | 0.00% |
| Little Roach vs Xiaoyu | 0–1 | 0.00% |
| Little Roach vs Clive | 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.