| Shun Akiyama vs Jin | 28–40 | 41.18% |
| Shun Akiyama vs Kazuya | 24–25 | 48.98% |
| Shun Akiyama vs Heihachi | 19–29 | 39.58% |
| Shun Akiyama vs King | 19–24 | 44.19% |
| Shun Akiyama vs Dragunov | 15–26 | 36.59% |
| Shun Akiyama vs Hwoarang | 15–23 | 39.47% |
| Shun Akiyama vs Steve | 22–12 | 64.71% |
| Shun Akiyama vs Bryan | 18–15 | 54.55% |
| Shun Akiyama vs Reina | 19–12 | 61.29% |
| Shun Akiyama vs Eddy | 8–21 | 27.59% |
| Shun Akiyama vs Jun | 11–17 | 39.29% |
| Shun Akiyama vs Law | 8–18 | 30.77% |
| Shun Akiyama vs Nina | 11–14 | 44.00% |
| Shun Akiyama vs Paul | 12–11 | 52.17% |
| Shun Akiyama vs Feng | 9–14 | 39.13% |
| Shun Akiyama vs Lars | 10–12 | 45.45% |
| Shun Akiyama vs Lili | 7–13 | 35.00% |
| Shun Akiyama vs Lee | 9–11 | 45.00% |
| Shun Akiyama vs Victor | 13–6 | 68.42% |
| Shun Akiyama vs Devil Jin | 9–9 | 50.00% |
| Shun Akiyama vs Yoshimitsu | 10–4 | 71.43% |
| Shun Akiyama vs Claudio | 5–4 | 55.56% |
| Shun Akiyama vs Lidia | 4–5 | 44.44% |
| Shun Akiyama vs Xiaoyu | 4–4 | 50.00% |
| Shun Akiyama vs Azucena | 4–4 | 50.00% |
| Shun Akiyama vs Jack-8 | 4–3 | 57.14% |
| Shun Akiyama vs Asuka | 1–6 | 14.29% |
| Shun Akiyama vs Leroy | 3–3 | 50.00% |
| Shun Akiyama vs Kuma | 1–3 | 25.00% |
| Shun Akiyama vs Panda | 1–2 | 33.33% |
| Shun Akiyama vs Leo | 2–0 | 100.00% |
| Shun Akiyama vs Alisa | 1–1 | 50.00% |
| Shun Akiyama vs Raven | 0–2 | 0.00% |
| Shun Akiyama vs Clive | 0–2 | 0.00% |
| Shun Akiyama vs Shaheen | 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.