| IRomeoI vs Jin | 47–53 | 47.00% |
| IRomeoI vs Kazuya | 35–50 | 41.18% |
| IRomeoI vs Hwoarang | 38–46 | 45.24% |
| IRomeoI vs King | 31–36 | 46.27% |
| IRomeoI vs Law | 26–35 | 42.62% |
| IRomeoI vs Eddy | 19–39 | 32.76% |
| IRomeoI vs Heihachi | 25–24 | 51.02% |
| IRomeoI vs Yoshimitsu | 18–25 | 41.86% |
| IRomeoI vs Bryan | 23–19 | 54.76% |
| IRomeoI vs Jun | 20–21 | 48.78% |
| IRomeoI vs Reina | 18–20 | 47.37% |
| IRomeoI vs Lidia | 18–20 | 47.37% |
| IRomeoI vs Nina | 14–20 | 41.18% |
| IRomeoI vs Steve | 17–16 | 51.52% |
| IRomeoI vs Lili | 22–8 | 73.33% |
| IRomeoI vs Paul | 14–15 | 48.28% |
| IRomeoI vs Dragunov | 9–18 | 33.33% |
| IRomeoI vs Asuka | 9–17 | 34.62% |
| IRomeoI vs Devil Jin | 11–15 | 42.31% |
| IRomeoI vs Azucena | 13–13 | 50.00% |
| IRomeoI vs Victor | 11–13 | 45.83% |
| IRomeoI vs Jack-8 | 7–15 | 31.82% |
| IRomeoI vs Lars | 6–14 | 30.00% |
| IRomeoI vs Alisa | 8–7 | 53.33% |
| IRomeoI vs Claudio | 5–10 | 33.33% |
| IRomeoI vs Zafina | 5–10 | 33.33% |
| IRomeoI vs Xiaoyu | 8–6 | 57.14% |
| IRomeoI vs Lee | 4–10 | 28.57% |
| IRomeoI vs Leroy | 5–9 | 35.71% |
| IRomeoI vs Raven | 5–9 | 35.71% |
| IRomeoI vs Clive | 6–8 | 42.86% |
| IRomeoI vs Feng | 4–7 | 36.36% |
| IRomeoI vs Leo | 3–7 | 30.00% |
| IRomeoI vs Armor King | 4–5 | 44.44% |
| IRomeoI vs Panda | 1–6 | 14.29% |
| IRomeoI vs Kuma | 1–5 | 16.67% |
| IRomeoI vs Anna | 3–3 | 50.00% |
| IRomeoI vs Shaheen | 3–2 | 60.00% |
| IRomeoI vs Fahkumram | 2–2 | 50.00% |
| IRomeoI vs Miary Zo | 1–3 | 25.00% |
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.