| marshmallow vs Dragunov | 21–9 | 70.00% |
| marshmallow vs Kazuya | 17–11 | 60.71% |
| marshmallow vs Reina | 14–11 | 56.00% |
| marshmallow vs Paul | 9–12 | 42.86% |
| marshmallow vs King | 9–9 | 50.00% |
| marshmallow vs Bryan | 6–9 | 40.00% |
| marshmallow vs Asuka | 10–2 | 83.33% |
| marshmallow vs Devil Jin | 4–8 | 33.33% |
| marshmallow vs Lili | 8–4 | 66.67% |
| marshmallow vs Hwoarang | 8–3 | 72.73% |
| marshmallow vs Victor | 8–3 | 72.73% |
| marshmallow vs Jun | 7–3 | 70.00% |
| marshmallow vs Azucena | 6–4 | 60.00% |
| marshmallow vs Yoshimitsu | 3–5 | 37.50% |
| marshmallow vs Steve | 7–0 | 100.00% |
| marshmallow vs Clive | 1–6 | 14.29% |
| marshmallow vs Leo | 1–4 | 20.00% |
| marshmallow vs Lee | 4–1 | 80.00% |
| marshmallow vs Anna | 1–4 | 20.00% |
| marshmallow vs Armor King | 1–4 | 20.00% |
| marshmallow vs Miary Zo | 1–4 | 20.00% |
| marshmallow vs Jack-8 | 2–2 | 50.00% |
| marshmallow vs Alisa | 3–1 | 75.00% |
| marshmallow vs Kuma | 3–1 | 75.00% |
| marshmallow vs Fahkumram | 2–2 | 50.00% |
| marshmallow vs Law | 2–1 | 66.67% |
| marshmallow vs Feng | 2–1 | 66.67% |
| marshmallow vs Eddy | 2–1 | 66.67% |
| marshmallow vs Heihachi | 1–2 | 33.33% |
| marshmallow vs Jin | 2–0 | 100.00% |
| marshmallow vs Claudio | 2–0 | 100.00% |
| marshmallow vs Lidia | 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.