| Diagan vs Law | 9–6 | 60.00% |
| Diagan vs Jin | 5–9 | 35.71% |
| Diagan vs Kazuya | 8–6 | 57.14% |
| Diagan vs Jun | 8–6 | 57.14% |
| Diagan vs Lili | 6–5 | 54.55% |
| Diagan vs Dragunov | 4–5 | 44.44% |
| Diagan vs Azucena | 1–8 | 11.11% |
| Diagan vs Eddy | 4–5 | 44.44% |
| Diagan vs Bryan | 3–4 | 42.86% |
| Diagan vs Steve | 4–3 | 57.14% |
| Diagan vs Miary Zo | 4–3 | 57.14% |
| Diagan vs Hwoarang | 3–3 | 50.00% |
| Diagan vs King | 1–4 | 20.00% |
| Diagan vs Claudio | 3–2 | 60.00% |
| Diagan vs Reina | 2–3 | 40.00% |
| Diagan vs Lee | 3–1 | 75.00% |
| Diagan vs Zafina | 3–1 | 75.00% |
| Diagan vs Victor | 0–4 | 0.00% |
| Diagan vs Armor King | 1–3 | 25.00% |
| Diagan vs Feng | 0–3 | 0.00% |
| Diagan vs Panda | 2–1 | 66.67% |
| Diagan vs Paul | 1–1 | 50.00% |
| Diagan vs Lars | 2–0 | 100.00% |
| Diagan vs Leroy | 2–0 | 100.00% |
| Diagan vs Raven | 2–0 | 100.00% |
| Diagan vs Lidia | 2–0 | 100.00% |
| Diagan vs Heihachi | 0–2 | 0.00% |
| Diagan vs Anna | 2–0 | 100.00% |
| Diagan vs Yoshimitsu | 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.