| I.R. Octave vs Hwoarang | 8–16 | 33.33% |
| I.R. Octave vs King | 11–11 | 50.00% |
| I.R. Octave vs Asuka | 8–5 | 61.54% |
| I.R. Octave vs Lili | 3–10 | 23.08% |
| I.R. Octave vs Jun | 6–7 | 46.15% |
| I.R. Octave vs Yoshimitsu | 5–5 | 50.00% |
| I.R. Octave vs Devil Jin | 4–5 | 44.44% |
| I.R. Octave vs Dragunov | 7–2 | 77.78% |
| I.R. Octave vs Reina | 5–4 | 55.56% |
| I.R. Octave vs Kazuya | 2–5 | 28.57% |
| I.R. Octave vs Lidia | 1–4 | 20.00% |
| I.R. Octave vs Victor | 2–2 | 50.00% |
| I.R. Octave vs Paul | 1–2 | 33.33% |
| I.R. Octave vs Steve | 1–2 | 33.33% |
| I.R. Octave vs Jack-8 | 2–1 | 66.67% |
| I.R. Octave vs Feng | 1–2 | 33.33% |
| I.R. Octave vs Leo | 3–0 | 100.00% |
| I.R. Octave vs Claudio | 3–0 | 100.00% |
| I.R. Octave vs Law | 2–0 | 100.00% |
| I.R. Octave vs Xiaoyu | 0–2 | 0.00% |
| I.R. Octave vs Bryan | 0–2 | 0.00% |
| I.R. Octave vs Lars | 0–2 | 0.00% |
| I.R. Octave vs Shaheen | 2–0 | 100.00% |
| I.R. Octave vs Kuma | 2–0 | 100.00% |
| I.R. Octave vs Leroy | 2–0 | 100.00% |
| I.R. Octave vs Azucena | 0–2 | 0.00% |
| I.R. Octave vs Eddy | 0–2 | 0.00% |
| I.R. Octave vs Heihachi | 2–0 | 100.00% |
| I.R. Octave vs Alisa | 1–0 | 100.00% |
| I.R. Octave vs Lee | 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.