| Diddy vs King | 19–10 | 65.52% |
| Diddy vs Reina | 7–14 | 33.33% |
| Diddy vs Clive | 11–10 | 52.38% |
| Diddy vs Law | 10–10 | 50.00% |
| Diddy vs Kazuya | 9–8 | 52.94% |
| Diddy vs Paul | 6–10 | 37.50% |
| Diddy vs Hwoarang | 9–5 | 64.29% |
| Diddy vs Jin | 6–8 | 42.86% |
| Diddy vs Steve | 10–4 | 71.43% |
| Diddy vs Lili | 4–10 | 28.57% |
| Diddy vs Asuka | 10–2 | 83.33% |
| Diddy vs Xiaoyu | 8–3 | 72.73% |
| Diddy vs Nina | 8–3 | 72.73% |
| Diddy vs Bryan | 4–6 | 40.00% |
| Diddy vs Dragunov | 5–5 | 50.00% |
| Diddy vs Leo | 3–7 | 30.00% |
| Diddy vs Victor | 5–5 | 50.00% |
| Diddy vs Heihachi | 7–3 | 70.00% |
| Diddy vs Yoshimitsu | 6–2 | 75.00% |
| Diddy vs Lars | 2–6 | 25.00% |
| Diddy vs Lidia | 6–2 | 75.00% |
| Diddy vs Jun | 2–5 | 28.57% |
| Diddy vs Azucena | 2–5 | 28.57% |
| Diddy vs Eddy | 5–1 | 83.33% |
| Diddy vs Kuma | 1–4 | 20.00% |
| Diddy vs Feng | 3–1 | 75.00% |
| Diddy vs Zafina | 2–2 | 50.00% |
| Diddy vs Jack-8 | 0–3 | 0.00% |
| Diddy vs Claudio | 0–3 | 0.00% |
| Diddy vs Lee | 0–3 | 0.00% |
| Diddy vs Devil Jin | 0–2 | 0.00% |
| Diddy vs Raven | 2–0 | 100.00% |
| Diddy vs Leroy | 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.