| Rock13 vs Jin | 53–73–1 | 42.06% |
| Rock13 vs King | 47–74 | 38.84% |
| Rock13 vs Eddy | 36–80 | 31.03% |
| Rock13 vs Kazuya | 35–53 | 39.77% |
| Rock13 vs Hwoarang | 33–39 | 45.83% |
| Rock13 vs Law | 25–44 | 36.23% |
| Rock13 vs Reina | 39–29 | 57.35% |
| Rock13 vs Dragunov | 26–38 | 40.62% |
| Rock13 vs Steve | 23–39 | 37.10% |
| Rock13 vs Bryan | 26–30 | 46.43% |
| Rock13 vs Jun | 22–33 | 40.00% |
| Rock13 vs Yoshimitsu | 18–36 | 33.33% |
| Rock13 vs Lee | 22–32 | 40.74% |
| Rock13 vs Azucena | 20–33 | 37.74% |
| Rock13 vs Victor | 18–34 | 34.62% |
| Rock13 vs Asuka | 26–24 | 52.00% |
| Rock13 vs Feng | 13–31 | 29.55% |
| Rock13 vs Lars | 16–28 | 36.36% |
| Rock13 vs Lili | 19–23 | 45.24% |
| Rock13 vs Nina | 13–23 | 36.11% |
| Rock13 vs Paul | 18–14 | 56.25% |
| Rock13 vs Leo | 13–18 | 41.94% |
| Rock13 vs Raven | 9–18 | 33.33% |
| Rock13 vs Xiaoyu | 13–12 | 52.00% |
| Rock13 vs Leroy | 11–13 | 45.83% |
| Rock13 vs Alisa | 8–14 | 36.36% |
| Rock13 vs Devil Jin | 6–15 | 28.57% |
| Rock13 vs Jack-8 | 3–14 | 17.65% |
| Rock13 vs Claudio | 6–9 | 40.00% |
| Rock13 vs Kuma | 4–11 | 26.67% |
| Rock13 vs Zafina | 4–7 | 36.36% |
| Rock13 vs Shaheen | 5–3 | 62.50% |
| Rock13 vs Panda | 1–2 | 33.33% |
| Rock13 vs Lidia | 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.