| Roman Legatus vs Jin | 48–24 | 66.67% |
| Roman Legatus vs Kazuya | 44–22 | 66.67% |
| Roman Legatus vs King | 38–18 | 67.86% |
| Roman Legatus vs Law | 30–16 | 65.22% |
| Roman Legatus vs Lili | 18–22 | 45.00% |
| Roman Legatus vs Reina | 23–15 | 60.53% |
| Roman Legatus vs Hwoarang | 27–10 | 72.97% |
| Roman Legatus vs Steve | 25–11 | 69.44% |
| Roman Legatus vs Yoshimitsu | 13–17 | 43.33% |
| Roman Legatus vs Bryan | 18–10 | 64.29% |
| Roman Legatus vs Dragunov | 14–12 | 53.85% |
| Roman Legatus vs Victor | 14–12 | 53.85% |
| Roman Legatus vs Jun | 17–8 | 68.00% |
| Roman Legatus vs Eddy | 12–13 | 48.00% |
| Roman Legatus vs Devil Jin | 13–9–1 | 59.09% |
| Roman Legatus vs Nina | 16–7 | 69.57% |
| Roman Legatus vs Heihachi | 11–11 | 50.00% |
| Roman Legatus vs Clive | 12–9 | 57.14% |
| Roman Legatus vs Paul | 11–8 | 57.89% |
| Roman Legatus vs Asuka | 11–7 | 61.11% |
| Roman Legatus vs Lee | 8–10 | 44.44% |
| Roman Legatus vs Azucena | 12–6 | 66.67% |
| Roman Legatus vs Lidia | 12–2 | 85.71% |
| Roman Legatus vs Anna | 11–3 | 78.57% |
| Roman Legatus vs Lars | 7–5 | 58.33% |
| Roman Legatus vs Alisa | 4–7 | 36.36% |
| Roman Legatus vs Fahkumram | 3–8 | 27.27% |
| Roman Legatus vs Jack-8 | 3–7 | 30.00% |
| Roman Legatus vs Shaheen | 8–2 | 80.00% |
| Roman Legatus vs Feng | 4–3 | 57.14% |
| Roman Legatus vs Zafina | 4–3 | 57.14% |
| Roman Legatus vs Kuma | 5–1 | 83.33% |
| Roman Legatus vs Leroy | 4–2 | 66.67% |
| Roman Legatus vs Xiaoyu | 5–0 | 100.00% |
| Roman Legatus vs Armor King | 1–4 | 20.00% |
| Roman Legatus vs Leo | 2–0 | 100.00% |
| Roman Legatus vs Claudio | 1–1 | 50.00% |
| Roman Legatus vs Raven | 2–0 | 100.00% |
| Roman Legatus vs Miary Zo | 2–0 | 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.