| Diamond vs Steve | 15–17 | 46.88% |
| Diamond vs Hwoarang | 9–14 | 39.13% |
| Diamond vs King | 8–12 | 40.00% |
| Diamond vs Law | 7–11 | 38.89% |
| Diamond vs Eddy | 4–11 | 26.67% |
| Diamond vs Raven | 8–6 | 57.14% |
| Diamond vs Lili | 7–4 | 63.64% |
| Diamond vs Victor | 6–5 | 54.55% |
| Diamond vs Reina | 4–5 | 44.44% |
| Diamond vs Lars | 2–6 | 25.00% |
| Diamond vs Dragunov | 0–7 | 0.00% |
| Diamond vs Alisa | 3–4 | 42.86% |
| Diamond vs Azucena | 3–4 | 42.86% |
| Diamond vs Xiaoyu | 2–4 | 33.33% |
| Diamond vs Kazuya | 0–6 | 0.00% |
| Diamond vs Leroy | 4–2 | 66.67% |
| Diamond vs Armor King | 0–6 | 0.00% |
| Diamond vs Jack-8 | 3–2 | 60.00% |
| Diamond vs Devil Jin | 4–1 | 80.00% |
| Diamond vs Yoshimitsu | 1–3 | 25.00% |
| Diamond vs Asuka | 2–2 | 50.00% |
| Diamond vs Leo | 2–2 | 50.00% |
| Diamond vs Lidia | 1–3 | 25.00% |
| Diamond vs Paul | 0–3 | 0.00% |
| Diamond vs Jin | 3–0 | 100.00% |
| Diamond vs Lee | 0–3 | 0.00% |
| Diamond vs Anna | 0–3 | 0.00% |
| Diamond vs Bryan | 0–2 | 0.00% |
| Diamond vs Panda | 0–2 | 0.00% |
| Diamond vs Zafina | 0–2 | 0.00% |
| Diamond vs Jun | 0–2 | 0.00% |
| Diamond vs Heihachi | 0–2 | 0.00% |
| Diamond vs Clive | 0–2 | 0.00% |
| Diamond vs Claudio | 1–0 | 100.00% |
| Diamond vs Nina | 0–1 | 0.00% |
| Diamond vs Miary Zo | 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.