| Guffyman vs Dragunov | 15–9 | 62.50% |
| Guffyman vs Paul | 7–12 | 36.84% |
| Guffyman vs Reina | 9–10 | 47.37% |
| Guffyman vs Clive | 4–10 | 28.57% |
| Guffyman vs Bryan | 6–7 | 46.15% |
| Guffyman vs Hwoarang | 8–4 | 66.67% |
| Guffyman vs King | 4–7 | 36.36% |
| Guffyman vs Lars | 2–8 | 20.00% |
| Guffyman vs Victor | 5–5 | 50.00% |
| Guffyman vs Yoshimitsu | 4–5 | 44.44% |
| Guffyman vs Steve | 7–2 | 77.78% |
| Guffyman vs Asuka | 5–4 | 55.56% |
| Guffyman vs Lili | 6–3 | 66.67% |
| Guffyman vs Law | 1–7 | 12.50% |
| Guffyman vs Kazuya | 5–3 | 62.50% |
| Guffyman vs Zafina | 5–3 | 62.50% |
| Guffyman vs Leo | 2–5 | 28.57% |
| Guffyman vs Alisa | 1–6 | 14.29% |
| Guffyman vs Heihachi | 5–1 | 83.33% |
| Guffyman vs Nina | 4–1 | 80.00% |
| Guffyman vs Azucena | 1–4 | 20.00% |
| Guffyman vs Eddy | 4–1 | 80.00% |
| Guffyman vs Xiaoyu | 1–3 | 25.00% |
| Guffyman vs Jin | 1–3 | 25.00% |
| Guffyman vs Devil Jin | 3–1 | 75.00% |
| Guffyman vs Leroy | 3–1 | 75.00% |
| Guffyman vs Jun | 2–2 | 50.00% |
| Guffyman vs Lidia | 1–2 | 33.33% |
| Guffyman vs Jack-8 | 0–2 | 0.00% |
| Guffyman vs Shaheen | 2–0 | 100.00% |
| Guffyman vs Fahkumram | 2–0 | 100.00% |
| Guffyman vs Lee | 0–1 | 0.00% |
| Guffyman vs Kuma | 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.