| Roronoa Akairu vs Jin | 51–43 | 54.26% |
| Roronoa Akairu vs Kazuya | 47–40 | 54.02% |
| Roronoa Akairu vs Law | 41–36 | 53.25% |
| Roronoa Akairu vs Bryan | 35–35 | 50.00% |
| Roronoa Akairu vs Heihachi | 25–33 | 43.10% |
| Roronoa Akairu vs King | 29–28 | 50.88% |
| Roronoa Akairu vs Hwoarang | 30–17 | 63.83% |
| Roronoa Akairu vs Steve | 29–18 | 61.70% |
| Roronoa Akairu vs Eddy | 29–18 | 61.70% |
| Roronoa Akairu vs Dragunov | 23–20–1 | 53.49% |
| Roronoa Akairu vs Paul | 21–22 | 48.84% |
| Roronoa Akairu vs Yoshimitsu | 18–20 | 47.37% |
| Roronoa Akairu vs Nina | 16–21 | 43.24% |
| Roronoa Akairu vs Lili | 14–22 | 38.89% |
| Roronoa Akairu vs Lidia | 19–15 | 55.88% |
| Roronoa Akairu vs Victor | 13–16 | 44.83% |
| Roronoa Akairu vs Asuka | 15–13 | 53.57% |
| Roronoa Akairu vs Feng | 10–18 | 35.71% |
| Roronoa Akairu vs Alisa | 15–13 | 53.57% |
| Roronoa Akairu vs Reina | 11–17 | 39.29% |
| Roronoa Akairu vs Jun | 15–12 | 55.56% |
| Roronoa Akairu vs Azucena | 15–12 | 55.56% |
| Roronoa Akairu vs Devil Jin | 9–16 | 36.00% |
| Roronoa Akairu vs Lars | 10–10 | 50.00% |
| Roronoa Akairu vs Claudio | 11–8 | 57.89% |
| Roronoa Akairu vs Fahkumram | 13–6 | 68.42% |
| Roronoa Akairu vs Kuma | 7–10 | 41.18% |
| Roronoa Akairu vs Raven | 7–10 | 41.18% |
| Roronoa Akairu vs Clive | 5–12 | 29.41% |
| Roronoa Akairu vs Miary Zo | 6–11 | 35.29% |
| Roronoa Akairu vs Leroy | 9–7 | 56.25% |
| Roronoa Akairu vs Lee | 7–7 | 50.00% |
| Roronoa Akairu vs Leo | 6–7 | 46.15% |
| Roronoa Akairu vs Armor King | 4–8 | 33.33% |
| Roronoa Akairu vs Xiaoyu | 5–6 | 45.45% |
| Roronoa Akairu vs Jack-8 | 7–4 | 63.64% |
| Roronoa Akairu vs Shaheen | 3–7 | 30.00% |
| Roronoa Akairu vs Anna | 3–4 | 42.86% |
| Roronoa Akairu vs Panda | 2–1 | 66.67% |
| Roronoa Akairu vs Zafina | 1–1 | 50.00% |
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.