| Birby vs Reina | 25–15 | 62.50% |
| Birby vs Jin | 13–26 | 33.33% |
| Birby vs King | 17–19 | 47.22% |
| Birby vs Lili | 17–19 | 47.22% |
| Birby vs Kazuya | 15–17 | 46.88% |
| Birby vs Eddy | 9–23 | 28.12% |
| Birby vs Law | 12–18 | 40.00% |
| Birby vs Steve | 16–9 | 64.00% |
| Birby vs Hwoarang | 10–14 | 41.67% |
| Birby vs Victor | 9–13 | 40.91% |
| Birby vs Bryan | 13–7 | 65.00% |
| Birby vs Yoshimitsu | 8–11 | 42.11% |
| Birby vs Azucena | 11–7 | 61.11% |
| Birby vs Leo | 5–12 | 29.41% |
| Birby vs Paul | 10–6 | 62.50% |
| Birby vs Lars | 6–10 | 37.50% |
| Birby vs Lee | 8–8 | 50.00% |
| Birby vs Dragunov | 5–10 | 33.33% |
| Birby vs Jun | 9–5 | 64.29% |
| Birby vs Xiaoyu | 4–9 | 30.77% |
| Birby vs Jack-8 | 4–7 | 36.36% |
| Birby vs Devil Jin | 4–6 | 40.00% |
| Birby vs Feng | 5–4 | 55.56% |
| Birby vs Claudio | 1–8 | 11.11% |
| Birby vs Shaheen | 6–3 | 66.67% |
| Birby vs Asuka | 2–5 | 28.57% |
| Birby vs Nina | 5–2 | 71.43% |
| Birby vs Kuma | 0–7 | 0.00% |
| Birby vs Alisa | 2–4 | 33.33% |
| Birby vs Zafina | 2–4 | 33.33% |
| Birby vs Leroy | 2–1 | 66.67% |
| Birby vs Raven | 1–2 | 33.33% |
| Birby vs Panda | 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.