| Ruina Last vs Steve | 40–29 | 57.97% |
| Ruina Last vs King | 30–30 | 50.00% |
| Ruina Last vs Jin | 20–37 | 35.09% |
| Ruina Last vs Kazuya | 24–33 | 42.11% |
| Ruina Last vs Miary Zo | 31–26 | 54.39% |
| Ruina Last vs Reina | 27–25 | 51.92% |
| Ruina Last vs Law | 24–22 | 52.17% |
| Ruina Last vs Hwoarang | 22–22 | 50.00% |
| Ruina Last vs Dragunov | 23–21 | 52.27% |
| Ruina Last vs Bryan | 20–23 | 46.51% |
| Ruina Last vs Paul | 11–19 | 36.67% |
| Ruina Last vs Asuka | 19–11 | 63.33% |
| Ruina Last vs Lars | 10–16 | 38.46% |
| Ruina Last vs Lili | 13–12 | 52.00% |
| Ruina Last vs Eddy | 12–13 | 48.00% |
| Ruina Last vs Azucena | 13–11 | 54.17% |
| Ruina Last vs Heihachi | 13–11 | 54.17% |
| Ruina Last vs Devil Jin | 9–13 | 40.91% |
| Ruina Last vs Nina | 6–15 | 28.57% |
| Ruina Last vs Armor King | 9–12 | 42.86% |
| Ruina Last vs Lee | 6–13 | 31.58% |
| Ruina Last vs Clive | 8–11 | 42.11% |
| Ruina Last vs Xiaoyu | 7–10 | 41.18% |
| Ruina Last vs Victor | 11–6 | 64.71% |
| Ruina Last vs Yoshimitsu | 9–6 | 60.00% |
| Ruina Last vs Jun | 7–8 | 46.67% |
| Ruina Last vs Fahkumram | 5–9 | 35.71% |
| Ruina Last vs Lidia | 6–7 | 46.15% |
| Ruina Last vs Leo | 4–8 | 33.33% |
| Ruina Last vs Jack-8 | 5–5 | 50.00% |
| Ruina Last vs Raven | 7–2 | 77.78% |
| Ruina Last vs Feng | 3–5 | 37.50% |
| Ruina Last vs Alisa | 4–3 | 57.14% |
| Ruina Last vs Zafina | 5–2 | 71.43% |
| Ruina Last vs Leroy | 1–6 | 14.29% |
| Ruina Last vs Shaheen | 5–1 | 83.33% |
| Ruina Last vs Claudio | 1–3 | 25.00% |
| Ruina Last vs Kuma | 1–3 | 25.00% |
| Ruina Last vs Anna | 2–0 | 100.00% |
| Ruina Last vs Panda | 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.