| Mariko vs Kazuya | 27–48 | 36.00% |
| Mariko vs King | 28–30 | 48.28% |
| Mariko vs Jin | 20–36 | 35.71% |
| Mariko vs Bryan | 23–29 | 44.23% |
| Mariko vs Law | 24–26 | 48.00% |
| Mariko vs Steve | 16–24 | 40.00% |
| Mariko vs Dragunov | 14–23 | 37.84% |
| Mariko vs Reina | 18–18 | 50.00% |
| Mariko vs Fahkumram | 8–28 | 22.22% |
| Mariko vs Hwoarang | 13–19 | 40.62% |
| Mariko vs Heihachi | 12–19 | 38.71% |
| Mariko vs Eddy | 8–21 | 27.59% |
| Mariko vs Paul | 8–13 | 38.10% |
| Mariko vs Lili | 4–16 | 20.00% |
| Mariko vs Nina | 11–7 | 61.11% |
| Mariko vs Lars | 6–11 | 35.29% |
| Mariko vs Azucena | 7–10 | 41.18% |
| Mariko vs Jun | 7–8 | 46.67% |
| Mariko vs Devil Jin | 5–9 | 35.71% |
| Mariko vs Clive | 5–8 | 38.46% |
| Mariko vs Armor King | 3–10 | 23.08% |
| Mariko vs Claudio | 4–6 | 40.00% |
| Mariko vs Lee | 6–4 | 60.00% |
| Mariko vs Jack-8 | 3–6 | 33.33% |
| Mariko vs Asuka | 2–7 | 22.22% |
| Mariko vs Yoshimitsu | 4–4 | 50.00% |
| Mariko vs Victor | 3–5 | 37.50% |
| Mariko vs Anna | 4–4 | 50.00% |
| Mariko vs Lidia | 2–5 | 28.57% |
| Mariko vs Feng | 4–2 | 66.67% |
| Mariko vs Shaheen | 1–4 | 20.00% |
| Mariko vs Kuma | 0–5 | 0.00% |
| Mariko vs Xiaoyu | 2–2 | 50.00% |
| Mariko vs Alisa | 2–2 | 50.00% |
| Mariko vs Raven | 1–2 | 33.33% |
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.