| RockHardJim vs King | 19–12 | 61.29% |
| RockHardJim vs Kazuya | 19–8 | 70.37% |
| RockHardJim vs Jin | 17–5 | 77.27% |
| RockHardJim vs Dragunov | 15–5 | 75.00% |
| RockHardJim vs Reina | 11–8 | 57.89% |
| RockHardJim vs Eddy | 11–6 | 64.71% |
| RockHardJim vs Steve | 14–2 | 87.50% |
| RockHardJim vs Bryan | 11–4 | 73.33% |
| RockHardJim vs Devil Jin | 12–3 | 80.00% |
| RockHardJim vs Law | 10–4 | 71.43% |
| RockHardJim vs Asuka | 8–5 | 61.54% |
| RockHardJim vs Paul | 6–5 | 54.55% |
| RockHardJim vs Lee | 7–4 | 63.64% |
| RockHardJim vs Azucena | 10–1 | 90.91% |
| RockHardJim vs Xiaoyu | 8–1 | 88.89% |
| RockHardJim vs Yoshimitsu | 4–4 | 50.00% |
| RockHardJim vs Jun | 3–5 | 37.50% |
| RockHardJim vs Heihachi | 6–1 | 85.71% |
| RockHardJim vs Lili | 6–0 | 100.00% |
| RockHardJim vs Leroy | 5–1 | 83.33% |
| RockHardJim vs Feng | 3–2 | 60.00% |
| RockHardJim vs Leo | 2–3 | 40.00% |
| RockHardJim vs Alisa | 4–1 | 80.00% |
| RockHardJim vs Victor | 3–2 | 60.00% |
| RockHardJim vs Hwoarang | 1–3 | 25.00% |
| RockHardJim vs Jack-8 | 2–2 | 50.00% |
| RockHardJim vs Fahkumram | 2–2 | 50.00% |
| RockHardJim vs Lars | 3–0 | 100.00% |
| RockHardJim vs Claudio | 1–1 | 50.00% |
| RockHardJim vs Shaheen | 2–0 | 100.00% |
| RockHardJim vs Panda | 2–0 | 100.00% |
| RockHardJim vs Lidia | 2–0 | 100.00% |
| RockHardJim vs Anna | 2–0 | 100.00% |
| RockHardJim vs Nina | 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.