| Opoterus vs Kazuya | 37–64 | 36.63% |
| Opoterus vs Reina | 50–46 | 52.08% |
| Opoterus vs Jin | 44–50 | 46.81% |
| Opoterus vs King | 44–48 | 47.83% |
| Opoterus vs Clive | 35–46 | 43.21% |
| Opoterus vs Bryan | 32–37 | 46.38% |
| Opoterus vs Hwoarang | 35–33 | 51.47% |
| Opoterus vs Armor King | 33–31 | 51.56% |
| Opoterus vs Law | 29–27 | 51.79% |
| Opoterus vs Heihachi | 21–35 | 37.50% |
| Opoterus vs Yoshimitsu | 27–27 | 50.00% |
| Opoterus vs Lili | 20–27 | 42.55% |
| Opoterus vs Paul | 18–28 | 39.13% |
| Opoterus vs Devil Jin | 28–18 | 60.87% |
| Opoterus vs Jun | 21–25 | 45.65% |
| Opoterus vs Steve | 18–26 | 40.91% |
| Opoterus vs Dragunov | 17–21 | 44.74% |
| Opoterus vs Victor | 16–18 | 47.06% |
| Opoterus vs Asuka | 22–11 | 66.67% |
| Opoterus vs Xiaoyu | 13–19 | 40.62% |
| Opoterus vs Lars | 9–16 | 36.00% |
| Opoterus vs Nina | 11–14 | 44.00% |
| Opoterus vs Leroy | 11–13 | 45.83% |
| Opoterus vs Lidia | 11–13 | 45.83% |
| Opoterus vs Azucena | 10–13 | 43.48% |
| Opoterus vs Eddy | 9–11 | 45.00% |
| Opoterus vs Feng | 11–7 | 61.11% |
| Opoterus vs Alisa | 6–11 | 35.29% |
| Opoterus vs Lee | 4–10 | 28.57% |
| Opoterus vs Kuma | 5–8 | 38.46% |
| Opoterus vs Fahkumram | 5–8 | 38.46% |
| Opoterus vs Claudio | 3–9 | 25.00% |
| Opoterus vs Jack-8 | 6–5 | 54.55% |
| Opoterus vs Raven | 5–6 | 45.45% |
| Opoterus vs Anna | 5–6 | 45.45% |
| Opoterus vs Miary Zo | 4–4 | 50.00% |
| Opoterus vs Shaheen | 2–4 | 33.33% |
| Opoterus vs Zafina | 1–5 | 16.67% |
| Opoterus vs Panda | 1–4 | 20.00% |
| Opoterus vs Leo | 0–3 | 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.