| Diddy vs Reina | 15–3 | 83.33% |
| Diddy vs Jin | 6–2 | 75.00% |
| Diddy vs Steve | 4–3 | 57.14% |
| Diddy vs Law | 4–2 | 66.67% |
| Diddy vs Xiaoyu | 4–1 | 80.00% |
| Diddy vs Claudio | 2–3 | 40.00% |
| Diddy vs Kazuya | 2–2 | 50.00% |
| Diddy vs Leo | 4–0 | 100.00% |
| Diddy vs Leroy | 3–1 | 75.00% |
| Diddy vs Azucena | 4–0 | 100.00% |
| Diddy vs Lars | 3–0 | 100.00% |
| Diddy vs Lili | 3–0 | 100.00% |
| Diddy vs Nina | 1–2 | 33.33% |
| Diddy vs King | 2–0 | 100.00% |
| Diddy vs Asuka | 2–0 | 100.00% |
| Diddy vs Yoshimitsu | 1–1 | 50.00% |
| Diddy vs Kuma | 2–0 | 100.00% |
| Diddy vs Panda | 2–0 | 100.00% |
| Diddy vs Eddy | 2–0 | 100.00% |
| Diddy vs Heihachi | 1–1 | 50.00% |
| Diddy vs Paul | 0–1 | 0.00% |
| Diddy vs Dragunov | 1–0 | 100.00% |
| Diddy vs Lee | 1–0 | 100.00% |
| Diddy vs Devil Jin | 1–0 | 100.00% |
| Diddy vs Feng | 1–0 | 100.00% |
| Diddy vs Raven | 0–1 | 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.