| Prototype vs Jin | 53–55 | 49.07% |
| Prototype vs Kazuya | 50–51 | 49.50% |
| Prototype vs Hwoarang | 53–44 | 54.64% |
| Prototype vs King | 42–43 | 49.41% |
| Prototype vs Eddy | 34–41 | 45.33% |
| Prototype vs Bryan | 36–34 | 51.43% |
| Prototype vs Lili | 25–39 | 39.06% |
| Prototype vs Steve | 26–37 | 41.27% |
| Prototype vs Law | 31–27 | 53.45% |
| Prototype vs Reina | 24–31 | 43.64% |
| Prototype vs Dragunov | 30–22 | 57.69% |
| Prototype vs Paul | 28–20 | 58.33% |
| Prototype vs Yoshimitsu | 26–20 | 56.52% |
| Prototype vs Asuka | 19–25 | 43.18% |
| Prototype vs Jun | 26–16 | 61.90% |
| Prototype vs Xiaoyu | 20–18 | 52.63% |
| Prototype vs Lars | 12–25 | 32.43% |
| Prototype vs Victor | 14–21–1 | 40.00% |
| Prototype vs Azucena | 19–15 | 55.88% |
| Prototype vs Devil Jin | 13–20 | 39.39% |
| Prototype vs Lee | 18–12 | 60.00% |
| Prototype vs Alisa | 13–12 | 52.00% |
| Prototype vs Nina | 18–7 | 72.00% |
| Prototype vs Feng | 7–17 | 29.17% |
| Prototype vs Heihachi | 14–9 | 60.87% |
| Prototype vs Jack-8 | 10–12 | 45.45% |
| Prototype vs Leroy | 7–9 | 43.75% |
| Prototype vs Raven | 6–10 | 37.50% |
| Prototype vs Leo | 8–7 | 53.33% |
| Prototype vs Claudio | 10–4 | 71.43% |
| Prototype vs Zafina | 5–9 | 35.71% |
| Prototype vs Lidia | 7–4 | 63.64% |
| Prototype vs Kuma | 2–7 | 22.22% |
| Prototype vs Clive | 4–4 | 50.00% |
| Prototype vs Anna | 0–6 | 0.00% |
| Prototype vs Shaheen | 2–2 | 50.00% |
| Prototype vs Panda | 3–1 | 75.00% |
| Prototype vs Fahkumram | 4–0 | 100.00% |
| Prototype vs Armor King | 3–1 | 75.00% |
| Prototype vs Miary Zo | 1–3 | 25.00% |
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.