| Stewie Griffin vs Kazuya | 3–6 | 33.33% |
| Stewie Griffin vs Dragunov | 3–4 | 42.86% |
| Stewie Griffin vs King | 2–4 | 33.33% |
| Stewie Griffin vs Reina | 4–2 | 66.67% |
| Stewie Griffin vs Yoshimitsu | 1–4 | 20.00% |
| Stewie Griffin vs Law | 0–4 | 0.00% |
| Stewie Griffin vs Lili | 0–4 | 0.00% |
| Stewie Griffin vs Hwoarang | 2–1 | 66.67% |
| Stewie Griffin vs Jin | 2–1 | 66.67% |
| Stewie Griffin vs Bryan | 1–2 | 33.33% |
| Stewie Griffin vs Steve | 1–2 | 33.33% |
| Stewie Griffin vs Asuka | 2–1 | 66.67% |
| Stewie Griffin vs Shaheen | 2–1 | 66.67% |
| Stewie Griffin vs Xiaoyu | 0–2 | 0.00% |
| Stewie Griffin vs Devil Jin | 0–2 | 0.00% |
| Stewie Griffin vs Lars | 1–1 | 50.00% |
| Stewie Griffin vs Alisa | 0–2 | 0.00% |
| Stewie Griffin vs Claudio | 0–2 | 0.00% |
| Stewie Griffin vs Jack-8 | 0–1 | 0.00% |
| Stewie Griffin vs Lee | 0–1 | 0.00% |
| Stewie Griffin vs Panda | 1–0 | 100.00% |
| Stewie Griffin vs Victor | 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.