| Prototype vs King | 6–5 | 54.55% |
| Prototype vs Reina | 9–2 | 81.82% |
| Prototype vs Kazuya | 3–5 | 37.50% |
| Prototype vs Steve | 6–2 | 75.00% |
| Prototype vs Feng | 6–2 | 75.00% |
| Prototype vs Lili | 2–6 | 25.00% |
| Prototype vs Lee | 5–3 | 62.50% |
| Prototype vs Jun | 7–1 | 87.50% |
| Prototype vs Xiaoyu | 4–3 | 57.14% |
| Prototype vs Law | 6–0 | 100.00% |
| Prototype vs Jin | 1–5 | 16.67% |
| Prototype vs Asuka | 4–2 | 66.67% |
| Prototype vs Victor | 6–0 | 100.00% |
| Prototype vs Nina | 3–2 | 60.00% |
| Prototype vs Alisa | 2–2 | 50.00% |
| Prototype vs Eddy | 0–4 | 0.00% |
| Prototype vs Paul | 3–0 | 100.00% |
| Prototype vs Bryan | 1–2 | 33.33% |
| Prototype vs Jack-8 | 3–0 | 100.00% |
| Prototype vs Azucena | 1–2 | 33.33% |
| Prototype vs Dragunov | 0–2 | 0.00% |
| Prototype vs Lars | 0–2 | 0.00% |
| Prototype vs Kuma | 0–2 | 0.00% |
| Prototype vs Hwoarang | 1–0 | 100.00% |
| Prototype vs Devil Jin | 1–0 | 100.00% |
| Prototype vs Leo | 0–1 | 0.00% |
| Prototype vs Shaheen | 0–1 | 0.00% |
| Prototype vs Leroy | 1–0 | 100.00% |
| Prototype vs Raven | 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.