| MashAndSmash vs Eddy | 10–12 | 45.45% |
| MashAndSmash vs Jun | 14–5 | 73.68% |
| MashAndSmash vs Jin | 9–8 | 52.94% |
| MashAndSmash vs King | 8–8 | 50.00% |
| MashAndSmash vs Kazuya | 6–10 | 37.50% |
| MashAndSmash vs Bryan | 9–6 | 60.00% |
| MashAndSmash vs Lili | 8–6 | 57.14% |
| MashAndSmash vs Reina | 10–4 | 71.43% |
| MashAndSmash vs Azucena | 7–6 | 53.85% |
| MashAndSmash vs Yoshimitsu | 6–6 | 50.00% |
| MashAndSmash vs Lars | 8–4 | 66.67% |
| MashAndSmash vs Asuka | 9–2 | 81.82% |
| MashAndSmash vs Hwoarang | 5–4 | 55.56% |
| MashAndSmash vs Xiaoyu | 3–6 | 33.33% |
| MashAndSmash vs Steve | 5–4 | 55.56% |
| MashAndSmash vs Alisa | 6–2 | 75.00% |
| MashAndSmash vs Zafina | 5–3 | 62.50% |
| MashAndSmash vs Paul | 0–7 | 0.00% |
| MashAndSmash vs Law | 5–2 | 71.43% |
| MashAndSmash vs Leo | 3–4 | 42.86% |
| MashAndSmash vs Lee | 5–2 | 71.43% |
| MashAndSmash vs Kuma | 2–3 | 40.00% |
| MashAndSmash vs Leroy | 2–3 | 40.00% |
| MashAndSmash vs Feng | 2–2 | 50.00% |
| MashAndSmash vs Victor | 1–3 | 25.00% |
| MashAndSmash vs Raven | 1–3 | 25.00% |
| MashAndSmash vs Jack-8 | 2–1 | 66.67% |
| MashAndSmash vs Devil Jin | 3–0 | 100.00% |
| MashAndSmash vs Dragunov | 2–1 | 66.67% |
| MashAndSmash vs Nina | 2–1 | 66.67% |
| MashAndSmash vs Claudio | 0–2 | 0.00% |
| MashAndSmash vs Panda | 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.