| S3 Prototype vs Jin | 49–44 | 52.69% |
| S3 Prototype vs King | 40–39 | 50.63% |
| S3 Prototype vs Reina | 41–28 | 59.42% |
| S3 Prototype vs Steve | 28–34 | 45.16% |
| S3 Prototype vs Kazuya | 29–32 | 47.54% |
| S3 Prototype vs Dragunov | 25–32 | 43.86% |
| S3 Prototype vs Hwoarang | 30–23 | 56.60% |
| S3 Prototype vs Eddy | 28–21 | 57.14% |
| S3 Prototype vs Law | 19–29 | 39.58% |
| S3 Prototype vs Asuka | 23–25 | 47.92% |
| S3 Prototype vs Yoshimitsu | 18–23 | 43.90% |
| S3 Prototype vs Bryan | 21–20 | 51.22% |
| S3 Prototype vs Lili | 24–15 | 61.54% |
| S3 Prototype vs Azucena | 23–16 | 58.97% |
| S3 Prototype vs Lars | 19–17 | 52.78% |
| S3 Prototype vs Devil Jin | 14–20 | 41.18% |
| S3 Prototype vs Lee | 15–19 | 44.12% |
| S3 Prototype vs Clive | 16–13 | 55.17% |
| S3 Prototype vs Xiaoyu | 14–12 | 53.85% |
| S3 Prototype vs Leo | 12–13 | 48.00% |
| S3 Prototype vs Armor King | 11–14 | 44.00% |
| S3 Prototype vs Paul | 11–10 | 52.38% |
| S3 Prototype vs Feng | 11–10 | 52.38% |
| S3 Prototype vs Heihachi | 8–12 | 40.00% |
| S3 Prototype vs Nina | 9–9 | 50.00% |
| S3 Prototype vs Raven | 9–9 | 50.00% |
| S3 Prototype vs Lidia | 10–8 | 55.56% |
| S3 Prototype vs Victor | 13–4 | 76.47% |
| S3 Prototype vs Jun | 5–10 | 33.33% |
| S3 Prototype vs Shaheen | 5–8 | 38.46% |
| S3 Prototype vs Leroy | 4–8 | 33.33% |
| S3 Prototype vs Claudio | 6–5 | 54.55% |
| S3 Prototype vs Anna | 3–6 | 33.33% |
| S3 Prototype vs Jack-8 | 6–2 | 75.00% |
| S3 Prototype vs Alisa | 2–6 | 25.00% |
| S3 Prototype vs Panda | 2–6 | 25.00% |
| S3 Prototype vs Kuma | 3–4 | 42.86% |
| S3 Prototype vs Fahkumram | 3–4 | 42.86% |
| S3 Prototype vs Miary Zo | 1–2 | 33.33% |
| S3 Prototype vs Zafina | 0–2 | 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.