| Rock vs Dragunov | 12–16 | 42.86% |
| Rock vs Kazuya | 15–9 | 62.50% |
| Rock vs Paul | 10–12 | 45.45% |
| Rock vs Reina | 11–9 | 55.00% |
| Rock vs Asuka | 11–7 | 61.11% |
| Rock vs Lili | 12–3 | 80.00% |
| Rock vs Clive | 9–5 | 64.29% |
| Rock vs Azucena | 4–8 | 33.33% |
| Rock vs Yoshimitsu | 6–5 | 54.55% |
| Rock vs Jin | 5–6 | 45.45% |
| Rock vs Law | 7–3 | 70.00% |
| Rock vs Nina | 4–5 | 44.44% |
| Rock vs Victor | 6–3 | 66.67% |
| Rock vs Lidia | 5–4 | 55.56% |
| Rock vs Bryan | 4–4 | 50.00% |
| Rock vs Steve | 4–4 | 50.00% |
| Rock vs Jun | 6–2 | 75.00% |
| Rock vs Hwoarang | 3–4 | 42.86% |
| Rock vs King | 2–4 | 33.33% |
| Rock vs Devil Jin | 3–3 | 50.00% |
| Rock vs Alisa | 4–2 | 66.67% |
| Rock vs Claudio | 4–2 | 66.67% |
| Rock vs Lee | 3–3 | 50.00% |
| Rock vs Kuma | 2–4 | 33.33% |
| Rock vs Heihachi | 4–2 | 66.67% |
| Rock vs Feng | 2–3 | 40.00% |
| Rock vs Xiaoyu | 1–3 | 25.00% |
| Rock vs Leo | 2–2 | 50.00% |
| Rock vs Raven | 1–3 | 25.00% |
| Rock vs Fahkumram | 3–1 | 75.00% |
| Rock vs Jack-8 | 1–2 | 33.33% |
| Rock vs Lars | 0–3 | 0.00% |
| Rock vs Panda | 2–1 | 66.67% |
| Rock vs Zafina | 2–0 | 100.00% |
| Rock vs Leroy | 1–1 | 50.00% |
| Rock vs Shaheen | 0–1 | 0.00% |
| Rock vs Eddy | 1–0 | 100.00% |
| Rock vs Anna | 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.