| Siesta vs Dragunov | 20–33 | 37.74% |
| Siesta vs Kazuya | 18–11 | 62.07% |
| Siesta vs King | 12–16 | 42.86% |
| Siesta vs Clive | 17–11 | 60.71% |
| Siesta vs Asuka | 18–8 | 69.23% |
| Siesta vs Reina | 15–11 | 57.69% |
| Siesta vs Steve | 8–14 | 36.36% |
| Siesta vs Nina | 7–12 | 36.84% |
| Siesta vs Paul | 12–6 | 66.67% |
| Siesta vs Jin | 10–8 | 55.56% |
| Siesta vs Bryan | 12–6 | 66.67% |
| Siesta vs Yoshimitsu | 6–11 | 35.29% |
| Siesta vs Hwoarang | 9–7 | 56.25% |
| Siesta vs Xiaoyu | 7–9 | 43.75% |
| Siesta vs Lee | 10–6 | 62.50% |
| Siesta vs Alisa | 9–6 | 60.00% |
| Siesta vs Lili | 6–8 | 42.86% |
| Siesta vs Heihachi | 7–7 | 50.00% |
| Siesta vs Victor | 5–8 | 38.46% |
| Siesta vs Jun | 5–7 | 41.67% |
| Siesta vs Lidia | 5–5 | 50.00% |
| Siesta vs Law | 5–4 | 55.56% |
| Siesta vs Devil Jin | 5–4 | 55.56% |
| Siesta vs Leo | 6–3 | 66.67% |
| Siesta vs Azucena | 7–2 | 77.78% |
| Siesta vs Lars | 4–2 | 66.67% |
| Siesta vs Claudio | 2–4 | 33.33% |
| Siesta vs Panda | 3–3 | 50.00% |
| Siesta vs Zafina | 4–2 | 66.67% |
| Siesta vs Leroy | 2–4 | 33.33% |
| Siesta vs Shaheen | 2–3 | 40.00% |
| Siesta vs Feng | 4–0 | 100.00% |
| Siesta vs Raven | 2–1 | 66.67% |
| Siesta vs Kuma | 2–0 | 100.00% |
| Siesta vs Eddy | 2–0 | 100.00% |
| Siesta vs Jack-8 | 1–0 | 100.00% |
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.