| Prototype vs Jun | 15–16 | 48.39% |
| Prototype vs Law | 6–21 | 22.22% |
| Prototype vs Kazuya | 11–16 | 40.74% |
| Prototype vs King | 8–18 | 30.77% |
| Prototype vs Dragunov | 9–16 | 36.00% |
| Prototype vs Steve | 6–13 | 31.58% |
| Prototype vs Lili | 8–11 | 42.11% |
| Prototype vs Bryan | 11–7 | 61.11% |
| Prototype vs Heihachi | 4–13 | 23.53% |
| Prototype vs Jin | 11–5 | 68.75% |
| Prototype vs Azucena | 7–7 | 50.00% |
| Prototype vs Hwoarang | 4–9 | 30.77% |
| Prototype vs Asuka | 2–11 | 15.38% |
| Prototype vs Yoshimitsu | 2–8 | 20.00% |
| Prototype vs Lars | 4–6 | 40.00% |
| Prototype vs Feng | 4–5 | 44.44% |
| Prototype vs Paul | 3–5 | 37.50% |
| Prototype vs Clive | 1–7 | 12.50% |
| Prototype vs Victor | 3–4 | 42.86% |
| Prototype vs Raven | 0–7 | 0.00% |
| Prototype vs Alisa | 1–5 | 16.67% |
| Prototype vs Claudio | 3–3 | 50.00% |
| Prototype vs Reina | 5–1 | 83.33% |
| Prototype vs Anna | 0–6 | 0.00% |
| Prototype vs Eddy | 3–2 | 60.00% |
| Prototype vs Xiaoyu | 2–2 | 50.00% |
| Prototype vs Lidia | 2–2 | 50.00% |
| Prototype vs Devil Jin | 3–0 | 100.00% |
| Prototype vs Nina | 3–0 | 100.00% |
| Prototype vs Armor King | 1–2 | 33.33% |
| Prototype vs Leo | 0–2 | 0.00% |
| Prototype vs Zafina | 2–0 | 100.00% |
| Prototype vs Kuma | 0–1 | 0.00% |
| Prototype vs Leroy | 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.