| Proton vs King | 13–9 | 59.09% |
| Proton vs Dragunov | 9–7 | 56.25% |
| Proton vs Jin | 4–11 | 26.67% |
| Proton vs Kazuya | 11–3 | 78.57% |
| Proton vs Paul | 5–8 | 38.46% |
| Proton vs Law | 5–8 | 38.46% |
| Proton vs Hwoarang | 4–6 | 40.00% |
| Proton vs Asuka | 7–2 | 77.78% |
| Proton vs Reina | 6–3 | 66.67% |
| Proton vs Bryan | 4–2 | 66.67% |
| Proton vs Devil Jin | 2–4 | 33.33% |
| Proton vs Nina | 5–1 | 83.33% |
| Proton vs Eddy | 2–4 | 33.33% |
| Proton vs Heihachi | 4–2 | 66.67% |
| Proton vs Victor | 1–4 | 20.00% |
| Proton vs Anna | 4–0 | 100.00% |
| Proton vs Yoshimitsu | 2–1 | 66.67% |
| Proton vs Xiaoyu | 1–2 | 33.33% |
| Proton vs Jack-8 | 1–2 | 33.33% |
| Proton vs Lili | 1–2 | 33.33% |
| Proton vs Lars | 2–1 | 66.67% |
| Proton vs Kuma | 2–1 | 66.67% |
| Proton vs Fahkumram | 3–0 | 100.00% |
| Proton vs Steve | 2–0 | 100.00% |
| Proton vs Leo | 2–0 | 100.00% |
| Proton vs Alisa | 2–0 | 100.00% |
| Proton vs Claudio | 0–2 | 0.00% |
| Proton vs Jun | 0–2 | 0.00% |
| Proton vs Leroy | 0–1 | 0.00% |
| Proton vs Clive | 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.