| Stiffback vs King | 15–39 | 27.78% |
| Stiffback vs Reina | 10–22 | 31.25% |
| Stiffback vs Kazuya | 15–16 | 48.39% |
| Stiffback vs Jin | 16–14 | 53.33% |
| Stiffback vs Steve | 15–14 | 51.72% |
| Stiffback vs Lee | 13–16 | 44.83% |
| Stiffback vs Law | 11–16 | 40.74% |
| Stiffback vs Bryan | 7–19 | 26.92% |
| Stiffback vs Fahkumram | 7–19 | 26.92% |
| Stiffback vs Hwoarang | 8–16 | 33.33% |
| Stiffback vs Lili | 7–17 | 29.17% |
| Stiffback vs Azucena | 12–11 | 52.17% |
| Stiffback vs Xiaoyu | 9–10 | 47.37% |
| Stiffback vs Victor | 9–9 | 50.00% |
| Stiffback vs Jun | 5–11 | 31.25% |
| Stiffback vs Eddy | 1–15 | 6.25% |
| Stiffback vs Clive | 4–12 | 25.00% |
| Stiffback vs Leo | 7–8 | 46.67% |
| Stiffback vs Lidia | 6–9 | 40.00% |
| Stiffback vs Asuka | 3–10 | 23.08% |
| Stiffback vs Lars | 2–11 | 15.38% |
| Stiffback vs Alisa | 3–9 | 25.00% |
| Stiffback vs Nina | 4–8 | 33.33% |
| Stiffback vs Heihachi | 5–5 | 50.00% |
| Stiffback vs Devil Jin | 1–8 | 11.11% |
| Stiffback vs Dragunov | 2–7 | 22.22% |
| Stiffback vs Yoshimitsu | 6–2 | 75.00% |
| Stiffback vs Claudio | 2–6 | 25.00% |
| Stiffback vs Shaheen | 5–3 | 62.50% |
| Stiffback vs Paul | 2–5 | 28.57% |
| Stiffback vs Feng | 0–6 | 0.00% |
| Stiffback vs Leroy | 2–4 | 33.33% |
| Stiffback vs Anna | 1–5 | 16.67% |
| Stiffback vs Jack-8 | 2–3 | 40.00% |
| Stiffback vs Kuma | 0–4 | 0.00% |
| Stiffback vs Raven | 0–3 | 0.00% |
| Stiffback vs Zafina | 2–0 | 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.