| Diemonds vs King | 51–82 | 38.35% |
| Diemonds vs Jin | 41–72 | 36.28% |
| Diemonds vs Kazuya | 51–52 | 49.51% |
| Diemonds vs Eddy | 38–65 | 36.89% |
| Diemonds vs Steve | 52–50 | 50.98% |
| Diemonds vs Bryan | 43–43 | 50.00% |
| Diemonds vs Law | 33–44 | 42.86% |
| Diemonds vs Lars | 36–41 | 46.75% |
| Diemonds vs Lili | 36–39 | 48.00% |
| Diemonds vs Azucena | 36–36 | 50.00% |
| Diemonds vs Reina | 33–32 | 50.77% |
| Diemonds vs Dragunov | 26–34 | 43.33% |
| Diemonds vs Jun | 26–33 | 44.07% |
| Diemonds vs Xiaoyu | 15–43 | 25.86% |
| Diemonds vs Hwoarang | 30–27 | 52.63% |
| Diemonds vs Paul | 25–31 | 44.64% |
| Diemonds vs Yoshimitsu | 19–28 | 40.43% |
| Diemonds vs Lee | 19–26 | 42.22% |
| Diemonds vs Asuka | 8–34 | 19.05% |
| Diemonds vs Nina | 17–25 | 40.48% |
| Diemonds vs Lidia | 23–17 | 57.50% |
| Diemonds vs Devil Jin | 19–20 | 48.72% |
| Diemonds vs Leo | 14–22 | 38.89% |
| Diemonds vs Victor | 12–22 | 35.29% |
| Diemonds vs Jack-8 | 13–16 | 44.83% |
| Diemonds vs Alisa | 10–17 | 37.04% |
| Diemonds vs Leroy | 9–17 | 34.62% |
| Diemonds vs Clive | 13–12 | 52.00% |
| Diemonds vs Anna | 11–13 | 45.83% |
| Diemonds vs Raven | 9–11 | 45.00% |
| Diemonds vs Claudio | 8–11 | 42.11% |
| Diemonds vs Heihachi | 8–11 | 42.11% |
| Diemonds vs Zafina | 9–9 | 50.00% |
| Diemonds vs Shaheen | 7–10 | 41.18% |
| Diemonds vs Feng | 3–12 | 20.00% |
| Diemonds vs Kuma | 3–10 | 23.08% |
| Diemonds vs Panda | 4–5 | 44.44% |
| Diemonds vs Fahkumram | 0–4 | 0.00% |
| Diemonds vs Armor King | 4–0 | 100.00% |
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.