| King Buu vs King | 41–45 | 47.67% |
| King Buu vs Steve | 42–29 | 59.15% |
| King Buu vs Jin | 34–33 | 50.75% |
| King Buu vs Armor King | 28–33 | 45.90% |
| King Buu vs Law | 26–32 | 44.83% |
| King Buu vs Kazuya | 28–24 | 53.85% |
| King Buu vs Bryan | 29–19 | 60.42% |
| King Buu vs Reina | 24–22 | 52.17% |
| King Buu vs Azucena | 20–20 | 50.00% |
| King Buu vs Hwoarang | 26–12 | 68.42% |
| King Buu vs Lili | 20–15 | 57.14% |
| King Buu vs Paul | 13–21 | 38.24% |
| King Buu vs Lars | 17–17 | 50.00% |
| King Buu vs Dragunov | 8–22 | 26.67% |
| King Buu vs Jun | 12–16 | 42.86% |
| King Buu vs Eddy | 13–15 | 46.43% |
| King Buu vs Victor | 15–10 | 60.00% |
| King Buu vs Xiaoyu | 11–13 | 45.83% |
| King Buu vs Yoshimitsu | 11–12 | 47.83% |
| King Buu vs Feng | 10–11 | 47.62% |
| King Buu vs Lee | 10–10–1 | 50.00% |
| King Buu vs Nina | 8–12 | 40.00% |
| King Buu vs Raven | 11–9 | 55.00% |
| King Buu vs Alisa | 10–9 | 52.63% |
| King Buu vs Asuka | 8–8 | 50.00% |
| King Buu vs Leo | 10–6 | 62.50% |
| King Buu vs Heihachi | 5–11 | 31.25% |
| King Buu vs Fahkumram | 9–6 | 60.00% |
| King Buu vs Jack-8 | 7–7 | 50.00% |
| King Buu vs Devil Jin | 4–9 | 30.77% |
| King Buu vs Clive | 5–7 | 41.67% |
| King Buu vs Claudio | 5–5 | 50.00% |
| King Buu vs Leroy | 8–1 | 88.89% |
| King Buu vs Anna | 4–4 | 50.00% |
| King Buu vs Shaheen | 2–5 | 28.57% |
| King Buu vs Kuma | 3–2 | 60.00% |
| King Buu vs Zafina | 1–4 | 20.00% |
| King Buu vs Lidia | 2–2 | 50.00% |
| King Buu vs Miary Zo | 1–3 | 25.00% |
| King Buu vs Panda | 0–2 | 0.00% |
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.