| Shion Akiba vs Eddy | 10–1 | 90.91% |
| Shion Akiba vs Hwoarang | 9–1 | 90.00% |
| Shion Akiba vs Jin | 9–0 | 100.00% |
| Shion Akiba vs Steve | 7–2 | 77.78% |
| Shion Akiba vs Law | 6–2 | 75.00% |
| Shion Akiba vs Yoshimitsu | 5–1 | 83.33% |
| Shion Akiba vs Feng | 2–4 | 33.33% |
| Shion Akiba vs Nina | 5–1 | 83.33% |
| Shion Akiba vs Reina | 6–0 | 100.00% |
| Shion Akiba vs Heihachi | 4–1 | 80.00% |
| Shion Akiba vs King | 3–1 | 75.00% |
| Shion Akiba vs Devil Jin | 2–1 | 66.67% |
| Shion Akiba vs Jun | 3–0 | 100.00% |
| Shion Akiba vs Kazuya | 2–0 | 100.00% |
| Shion Akiba vs Victor | 0–2 | 0.00% |
| Shion Akiba vs Jack-8 | 1–0 | 100.00% |
| Shion Akiba vs Dragunov | 0–1 | 0.00% |
| Shion Akiba vs Lars | 1–0 | 100.00% |
| Shion Akiba vs Alisa | 1–0 | 100.00% |
| Shion Akiba vs Claudio | 1–0 | 100.00% |
| Shion Akiba vs Azucena | 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.