| Sandwich vs Reina | 10–12 | 45.45% |
| Sandwich vs Eddy | 7–5 | 58.33% |
| Sandwich vs Hwoarang | 6–5 | 54.55% |
| Sandwich vs Asuka | 6–5 | 54.55% |
| Sandwich vs Lili | 4–7 | 36.36% |
| Sandwich vs King | 4–5 | 44.44% |
| Sandwich vs Jin | 4–5 | 44.44% |
| Sandwich vs Leo | 5–4 | 55.56% |
| Sandwich vs Law | 5–3 | 62.50% |
| Sandwich vs Kazuya | 2–4 | 33.33% |
| Sandwich vs Xiaoyu | 5–0 | 100.00% |
| Sandwich vs Steve | 4–1 | 80.00% |
| Sandwich vs Nina | 4–1 | 80.00% |
| Sandwich vs Bryan | 1–3 | 25.00% |
| Sandwich vs Lars | 2–2 | 50.00% |
| Sandwich vs Claudio | 2–2 | 50.00% |
| Sandwich vs Shaheen | 2–2 | 50.00% |
| Sandwich vs Azucena | 3–1 | 75.00% |
| Sandwich vs Yoshimitsu | 2–1 | 66.67% |
| Sandwich vs Dragunov | 0–3 | 0.00% |
| Sandwich vs Alisa | 2–1 | 66.67% |
| Sandwich vs Lee | 1–2 | 33.33% |
| Sandwich vs Paul | 0–2 | 0.00% |
| Sandwich vs Jack-8 | 2–0 | 100.00% |
| Sandwich vs Devil Jin | 0–2 | 0.00% |
| Sandwich vs Feng | 2–0 | 100.00% |
| Sandwich vs Leroy | 2–0 | 100.00% |
| Sandwich vs Jun | 0–2 | 0.00% |
| Sandwich vs Victor | 0–2 | 0.00% |
| Sandwich vs Raven | 2–0 | 100.00% |
| Sandwich vs Heihachi | 1–1 | 50.00% |
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.