| Somnus vs Kazuya | 33–18 | 64.71% |
| Somnus vs Heihachi | 20–28 | 41.67% |
| Somnus vs Reina | 29–16 | 64.44% |
| Somnus vs Bryan | 13–18 | 41.94% |
| Somnus vs Jin | 15–14 | 51.72% |
| Somnus vs Dragunov | 11–17 | 39.29% |
| Somnus vs Azucena | 12–16 | 42.86% |
| Somnus vs Law | 11–14 | 44.00% |
| Somnus vs Devil Jin | 12–12 | 50.00% |
| Somnus vs Lidia | 13–10 | 56.52% |
| Somnus vs Yoshimitsu | 12–7 | 63.16% |
| Somnus vs Lili | 9–10 | 47.37% |
| Somnus vs Asuka | 6–12 | 33.33% |
| Somnus vs King | 3–14 | 17.65% |
| Somnus vs Jun | 11–6 | 64.71% |
| Somnus vs Paul | 8–8 | 50.00% |
| Somnus vs Zafina | 2–13 | 13.33% |
| Somnus vs Feng | 7–5 | 58.33% |
| Somnus vs Hwoarang | 7–4 | 63.64% |
| Somnus vs Xiaoyu | 6–5 | 54.55% |
| Somnus vs Steve | 5–6 | 45.45% |
| Somnus vs Victor | 2–8 | 20.00% |
| Somnus vs Lee | 7–2 | 77.78% |
| Somnus vs Lars | 3–5 | 37.50% |
| Somnus vs Shaheen | 3–5 | 37.50% |
| Somnus vs Jack-8 | 2–5 | 28.57% |
| Somnus vs Nina | 4–3 | 57.14% |
| Somnus vs Alisa | 0–6 | 0.00% |
| Somnus vs Claudio | 1–5 | 16.67% |
| Somnus vs Leroy | 3–2 | 60.00% |
| Somnus vs Leo | 1–2 | 33.33% |
| Somnus vs Panda | 2–1 | 66.67% |
| Somnus vs Eddy | 2–1 | 66.67% |
| Somnus vs Kuma | 0–2 | 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.