| A Marshmallow vs Kazuya | 13–8 | 61.90% |
| A Marshmallow vs Jin | 15–5 | 75.00% |
| A Marshmallow vs Law | 12–5 | 70.59% |
| A Marshmallow vs King | 4–8 | 33.33% |
| A Marshmallow vs Reina | 9–3 | 75.00% |
| A Marshmallow vs Azucena | 9–3 | 75.00% |
| A Marshmallow vs Dragunov | 6–3 | 66.67% |
| A Marshmallow vs Hwoarang | 4–4 | 50.00% |
| A Marshmallow vs Bryan | 3–4 | 42.86% |
| A Marshmallow vs Victor | 4–3 | 57.14% |
| A Marshmallow vs Yoshimitsu | 4–2 | 66.67% |
| A Marshmallow vs Steve | 3–3 | 50.00% |
| A Marshmallow vs Asuka | 3–3 | 50.00% |
| A Marshmallow vs Lars | 2–4 | 33.33% |
| A Marshmallow vs Jun | 3–3 | 50.00% |
| A Marshmallow vs Lidia | 3–2 | 60.00% |
| A Marshmallow vs Lili | 1–3 | 25.00% |
| A Marshmallow vs Leroy | 4–0 | 100.00% |
| A Marshmallow vs Heihachi | 3–1 | 75.00% |
| A Marshmallow vs Paul | 0–3 | 0.00% |
| A Marshmallow vs Jack-8 | 1–2 | 33.33% |
| A Marshmallow vs Devil Jin | 2–1 | 66.67% |
| A Marshmallow vs Nina | 3–0 | 100.00% |
| A Marshmallow vs Lee | 1–2 | 33.33% |
| A Marshmallow vs Feng | 1–1 | 50.00% |
| A Marshmallow vs Kuma | 2–0 | 100.00% |
| A Marshmallow vs Zafina | 2–0 | 100.00% |
| A Marshmallow vs Clive | 2–0 | 100.00% |
| A Marshmallow vs Xiaoyu | 1–0 | 100.00% |
| A Marshmallow vs Alisa | 1–0 | 100.00% |
| A Marshmallow vs Shaheen | 0–1 | 0.00% |
| A Marshmallow vs Eddy | 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.