| Dev9 vs Steve | 10–3 | 76.92% |
| Dev9 vs Reina | 5–6 | 45.45% |
| Dev9 vs Lee | 4–3 | 57.14% |
| Dev9 vs Heihachi | 6–1 | 85.71% |
| Dev9 vs Hwoarang | 4–1 | 80.00% |
| Dev9 vs Jin | 4–1 | 80.00% |
| Dev9 vs Bryan | 1–4 | 20.00% |
| Dev9 vs Kazuya | 3–2 | 60.00% |
| Dev9 vs Law | 3–1 | 75.00% |
| Dev9 vs Yoshimitsu | 2–1 | 66.67% |
| Dev9 vs Feng | 1–2 | 33.33% |
| Dev9 vs Jun | 2–1 | 66.67% |
| Dev9 vs Victor | 1–2 | 33.33% |
| Dev9 vs Fahkumram | 1–2 | 33.33% |
| Dev9 vs Miary Zo | 1–2 | 33.33% |
| Dev9 vs Nina | 0–2 | 0.00% |
| Dev9 vs Leroy | 2–0 | 100.00% |
| Dev9 vs Armor King | 0–2 | 0.00% |
| Dev9 vs Paul | 0–1 | 0.00% |
| Dev9 vs King | 1–0 | 100.00% |
| Dev9 vs Lili | 0–1 | 0.00% |
| Dev9 vs Claudio | 1–0 | 100.00% |
| Dev9 vs Azucena | 1–0 | 100.00% |
| Dev9 vs Raven | 1–0 | 100.00% |
| Dev9 vs Eddy | 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.