| Kid Buu vs Kazuya | 24–14 | 63.16% |
| Kid Buu vs Reina | 23–15 | 60.53% |
| Kid Buu vs King | 18–8 | 69.23% |
| Kid Buu vs Steve | 23–3 | 88.46% |
| Kid Buu vs Xiaoyu | 15–9 | 62.50% |
| Kid Buu vs Armor King | 14–10 | 58.33% |
| Kid Buu vs Jun | 12–7 | 63.16% |
| Kid Buu vs Jin | 12–5 | 70.59% |
| Kid Buu vs Bryan | 12–5 | 70.59% |
| Kid Buu vs Azucena | 10–7 | 58.82% |
| Kid Buu vs Fahkumram | 11–4 | 73.33% |
| Kid Buu vs Yoshimitsu | 7–6 | 53.85% |
| Kid Buu vs Clive | 9–3 | 75.00% |
| Kid Buu vs Law | 9–2 | 81.82% |
| Kid Buu vs Asuka | 5–6 | 45.45% |
| Kid Buu vs Lee | 9–2 | 81.82% |
| Kid Buu vs Devil Jin | 8–2 | 80.00% |
| Kid Buu vs Eddy | 2–7 | 22.22% |
| Kid Buu vs Anna | 5–4 | 55.56% |
| Kid Buu vs Lars | 6–2 | 75.00% |
| Kid Buu vs Lidia | 4–3 | 57.14% |
| Kid Buu vs Lili | 0–6 | 0.00% |
| Kid Buu vs Hwoarang | 4–1 | 80.00% |
| Kid Buu vs Feng | 4–1 | 80.00% |
| Kid Buu vs Leo | 3–2 | 60.00% |
| Kid Buu vs Leroy | 4–1 | 80.00% |
| Kid Buu vs Heihachi | 5–0 | 100.00% |
| Kid Buu vs Paul | 4–0 | 100.00% |
| Kid Buu vs Jack-8 | 1–3 | 25.00% |
| Kid Buu vs Victor | 2–2 | 50.00% |
| Kid Buu vs Dragunov | 1–2 | 33.33% |
| Kid Buu vs Shaheen | 2–1 | 66.67% |
| Kid Buu vs Alisa | 0–2 | 0.00% |
| Kid Buu vs Raven | 1–1 | 50.00% |
| Kid Buu vs Claudio | 0–1 | 0.00% |
| Kid Buu vs Zafina | 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.