| RockRock vs King | 8–0 | 100.00% |
| RockRock vs Jin | 7–1 | 87.50% |
| RockRock vs Bryan | 7–0 | 100.00% |
| RockRock vs Law | 5–1 | 83.33% |
| RockRock vs Reina | 6–0 | 100.00% |
| RockRock vs Fahkumram | 6–0 | 100.00% |
| RockRock vs Jun | 3–2 | 60.00% |
| RockRock vs Steve | 4–0 | 100.00% |
| RockRock vs Feng | 4–0 | 100.00% |
| RockRock vs Lili | 4–0 | 100.00% |
| RockRock vs Lee | 4–0 | 100.00% |
| RockRock vs Leroy | 4–0 | 100.00% |
| RockRock vs Anna | 4–0 | 100.00% |
| RockRock vs Devil Jin | 3–0 | 100.00% |
| RockRock vs Nina | 2–1 | 66.67% |
| RockRock vs Victor | 3–0 | 100.00% |
| RockRock vs Eddy | 3–0 | 100.00% |
| RockRock vs Miary Zo | 3–0 | 100.00% |
| RockRock vs Hwoarang | 2–0 | 100.00% |
| RockRock vs Xiaoyu | 2–0 | 100.00% |
| RockRock vs Kazuya | 2–0 | 100.00% |
| RockRock vs Asuka | 2–0 | 100.00% |
| RockRock vs Alisa | 2–0 | 100.00% |
| RockRock vs Kuma | 2–0 | 100.00% |
| RockRock vs Raven | 2–0 | 100.00% |
| RockRock vs Lidia | 2–0 | 100.00% |
| RockRock vs Heihachi | 2–0 | 100.00% |
| RockRock vs Clive | 2–0 | 100.00% |
| RockRock vs Dragunov | 1–0 | 100.00% |
| RockRock vs Azucena | 1–0 | 100.00% |
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.