| Guido vs Hwoarang | 27–40 | 40.30% |
| Guido vs Law | 13–39 | 25.00% |
| Guido vs Jin | 11–41 | 21.15% |
| Guido vs Eddy | 20–30 | 40.00% |
| Guido vs Steve | 13–32 | 28.89% |
| Guido vs King | 18–25 | 41.86% |
| Guido vs Kazuya | 17–21 | 44.74% |
| Guido vs Yoshimitsu | 14–17 | 45.16% |
| Guido vs Nina | 7–19 | 26.92% |
| Guido vs Jun | 6–19 | 24.00% |
| Guido vs Reina | 8–16 | 33.33% |
| Guido vs Azucena | 6–18 | 25.00% |
| Guido vs Victor | 8–15 | 34.78% |
| Guido vs Asuka | 6–10 | 37.50% |
| Guido vs Devil Jin | 4–12 | 25.00% |
| Guido vs Lili | 6–10 | 37.50% |
| Guido vs Lars | 4–12 | 25.00% |
| Guido vs Bryan | 3–12 | 20.00% |
| Guido vs Dragunov | 4–9 | 30.77% |
| Guido vs Jack-8 | 2–10 | 16.67% |
| Guido vs Lee | 1–11 | 8.33% |
| Guido vs Leroy | 3–7 | 30.00% |
| Guido vs Alisa | 1–8 | 11.11% |
| Guido vs Feng | 1–7 | 12.50% |
| Guido vs Xiaoyu | 5–2 | 71.43% |
| Guido vs Raven | 2–5 | 28.57% |
| Guido vs Paul | 4–2 | 66.67% |
| Guido vs Leo | 1–4 | 20.00% |
| Guido vs Claudio | 2–3 | 40.00% |
| Guido vs Shaheen | 0–4 | 0.00% |
| Guido vs Zafina | 1–2 | 33.33% |
| Guido vs Kuma | 1–1 | 50.00% |
| Guido vs Panda | 0–1 | 0.00% |
| Guido vs Heihachi | 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.