| 21Sandwich vs Jin | 12–11 | 52.17% |
| 21Sandwich vs Kazuya | 11–10 | 52.38% |
| 21Sandwich vs Hwoarang | 9–11 | 45.00% |
| 21Sandwich vs Bryan | 4–16 | 20.00% |
| 21Sandwich vs Reina | 8–10 | 44.44% |
| 21Sandwich vs Law | 9–8 | 52.94% |
| 21Sandwich vs Steve | 5–12 | 29.41% |
| 21Sandwich vs Victor | 6–9 | 40.00% |
| 21Sandwich vs Eddy | 5–10 | 33.33% |
| 21Sandwich vs Paul | 3–9 | 25.00% |
| 21Sandwich vs Yoshimitsu | 5–7 | 41.67% |
| 21Sandwich vs Lili | 10–2 | 83.33% |
| 21Sandwich vs Lee | 7–5 | 58.33% |
| 21Sandwich vs Azucena | 5–7 | 41.67% |
| 21Sandwich vs Jun | 6–4 | 60.00% |
| 21Sandwich vs Xiaoyu | 2–7 | 22.22% |
| 21Sandwich vs Nina | 4–4 | 50.00% |
| 21Sandwich vs Raven | 4–4 | 50.00% |
| 21Sandwich vs King | 3–4 | 42.86% |
| 21Sandwich vs Panda | 1–6 | 14.29% |
| 21Sandwich vs Zafina | 3–4 | 42.86% |
| 21Sandwich vs Kuma | 0–6 | 0.00% |
| 21Sandwich vs Jack-8 | 1–4 | 20.00% |
| 21Sandwich vs Dragunov | 1–4 | 20.00% |
| 21Sandwich vs Alisa | 4–1 | 80.00% |
| 21Sandwich vs Leroy | 0–5 | 0.00% |
| 21Sandwich vs Asuka | 2–3 | 40.00% |
| 21Sandwich vs Leo | 1–2 | 33.33% |
| 21Sandwich vs Feng | 0–2 | 0.00% |
| 21Sandwich vs Claudio | 2–0 | 100.00% |
| 21Sandwich vs Devil Jin | 0–2 | 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.