| Baby Billy vs Clive | 62–64 | 49.21% |
| Baby Billy vs Kazuya | 31–25 | 55.36% |
| Baby Billy vs Reina | 30–23 | 56.60% |
| Baby Billy vs Jin | 24–22 | 52.17% |
| Baby Billy vs King | 20–12 | 62.50% |
| Baby Billy vs Steve | 19–13 | 59.38% |
| Baby Billy vs Azucena | 23–8 | 74.19% |
| Baby Billy vs Bryan | 19–9 | 67.86% |
| Baby Billy vs Jun | 18–9 | 66.67% |
| Baby Billy vs Hwoarang | 10–13 | 43.48% |
| Baby Billy vs Dragunov | 15–7 | 68.18% |
| Baby Billy vs Heihachi | 14–8 | 63.64% |
| Baby Billy vs Asuka | 6–13 | 31.58% |
| Baby Billy vs Paul | 8–10 | 44.44% |
| Baby Billy vs Devil Jin | 8–10 | 44.44% |
| Baby Billy vs Lars | 10–8 | 55.56% |
| Baby Billy vs Alisa | 9–8 | 52.94% |
| Baby Billy vs Yoshimitsu | 12–4 | 75.00% |
| Baby Billy vs Lili | 9–7 | 56.25% |
| Baby Billy vs Leo | 8–8 | 50.00% |
| Baby Billy vs Lee | 11–5 | 68.75% |
| Baby Billy vs Law | 5–10 | 33.33% |
| Baby Billy vs Leroy | 11–3 | 78.57% |
| Baby Billy vs Lidia | 8–6 | 57.14% |
| Baby Billy vs Victor | 5–8 | 38.46% |
| Baby Billy vs Raven | 9–4 | 69.23% |
| Baby Billy vs Xiaoyu | 10–1 | 90.91% |
| Baby Billy vs Nina | 5–6 | 45.45% |
| Baby Billy vs Kuma | 2–9 | 18.18% |
| Baby Billy vs Eddy | 7–3 | 70.00% |
| Baby Billy vs Jack-8 | 6–2 | 75.00% |
| Baby Billy vs Feng | 4–3 | 57.14% |
| Baby Billy vs Claudio | 5–2 | 71.43% |
| Baby Billy vs Shaheen | 5–1 | 83.33% |
| Baby Billy vs Panda | 2–3 | 40.00% |
| Baby Billy vs Zafina | 4–1 | 80.00% |
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.