| Roka vs Eddy | 29–27 | 51.79% |
| Roka vs Jin | 34–19 | 64.15% |
| Roka vs Hwoarang | 17–35 | 32.69% |
| Roka vs Reina | 20–28 | 41.67% |
| Roka vs King | 18–24 | 42.86% |
| Roka vs Kazuya | 22–19 | 53.66% |
| Roka vs Dragunov | 20–18 | 52.63% |
| Roka vs Bryan | 21–15 | 58.33% |
| Roka vs Law | 16–15 | 51.61% |
| Roka vs Steve | 12–18 | 40.00% |
| Roka vs Lars | 13–17 | 43.33% |
| Roka vs Azucena | 18–10 | 64.29% |
| Roka vs Lili | 12–15 | 44.44% |
| Roka vs Jun | 15–11 | 57.69% |
| Roka vs Feng | 12–12 | 50.00% |
| Roka vs Leroy | 14–10 | 58.33% |
| Roka vs Victor | 11–12 | 47.83% |
| Roka vs Lidia | 11–7 | 61.11% |
| Roka vs Yoshimitsu | 7–9 | 43.75% |
| Roka vs Asuka | 10–6 | 62.50% |
| Roka vs Raven | 9–5 | 64.29% |
| Roka vs Paul | 5–7 | 41.67% |
| Roka vs Lee | 7–5 | 58.33% |
| Roka vs Alisa | 6–5 | 54.55% |
| Roka vs Xiaoyu | 6–4 | 60.00% |
| Roka vs Devil Jin | 5–5 | 50.00% |
| Roka vs Claudio | 7–2 | 77.78% |
| Roka vs Armor King | 8–1 | 88.89% |
| Roka vs Leo | 3–5 | 37.50% |
| Roka vs Kuma | 7–1 | 87.50% |
| Roka vs Jack-8 | 3–4 | 42.86% |
| Roka vs Panda | 3–4 | 42.86% |
| Roka vs Shaheen | 1–4 | 20.00% |
| Roka vs Nina | 5–0 | 100.00% |
| Roka vs Zafina | 2–0 | 100.00% |
| Roka vs Heihachi | 1–0 | 100.00% |
| Roka vs Fahkumram | 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.