| Rock_U vs Bryan | 214–164 | 56.61% |
| Rock_U vs Dragunov | 146–159 | 47.87% |
| Rock_U vs Hwoarang | 144–158 | 47.68% |
| Rock_U vs Paul | 138–130 | 51.49% |
| Rock_U vs Lili | 180–82 | 68.70% |
| Rock_U vs Yoshimitsu | 169–90 | 65.25% |
| Rock_U vs Nina | 112–122–1 | 47.86% |
| Rock_U vs Asuka | 130–89–1 | 59.36% |
| Rock_U vs Jin | 110–99 | 52.63% |
| Rock_U vs Steve | 94–114 | 45.19% |
| Rock_U vs King | 113–91 | 55.39% |
| Rock_U vs Kazuya | 96–107 | 47.29% |
| Rock_U vs Heihachi | 102–101 | 50.25% |
| Rock_U vs Xiaoyu | 97–101 | 48.99% |
| Rock_U vs Jack-8 | 83–114 | 42.13% |
| Rock_U vs Reina | 97–97 | 50.00% |
| Rock_U vs Azucena | 99–93 | 51.56% |
| Rock_U vs Law | 100–88 | 53.19% |
| Rock_U vs Lee | 82–95 | 46.33% |
| Rock_U vs Clive | 70–106 | 39.77% |
| Rock_U vs Alisa | 86–76 | 53.09% |
| Rock_U vs Victor | 82–79 | 50.93% |
| Rock_U vs Lars | 89–71 | 55.62% |
| Rock_U vs Devil Jin | 89–69 | 56.33% |
| Rock_U vs Leroy | 74–81 | 47.74% |
| Rock_U vs Claudio | 64–71 | 47.41% |
| Rock_U vs Feng | 69–65 | 51.49% |
| Rock_U vs Eddy | 64–60 | 51.61% |
| Rock_U vs Shaheen | 56–60–1 | 48.28% |
| Rock_U vs Jun | 72–44 | 62.07% |
| Rock_U vs Armor King | 76–36 | 67.86% |
| Rock_U vs Raven | 60–47 | 56.07% |
| Rock_U vs Zafina | 56–48 | 53.85% |
| Rock_U vs Leo | 41–48 | 46.07% |
| Rock_U vs Miary Zo | 54–35 | 60.67% |
| Rock_U vs Fahkumram | 35–42 | 45.45% |
| Rock_U vs Lidia | 36–38 | 48.65% |
| Rock_U vs Kuma | 35–32 | 52.24% |
| Rock_U vs Anna | 36–31 | 53.73% |
| Rock_U vs Panda | 33–29 | 53.23% |
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.