| Penumbra vs Law | 6–8 | 42.86% |
| Penumbra vs Kazuya | 8–6 | 57.14% |
| Penumbra vs Heihachi | 6–5 | 54.55% |
| Penumbra vs Paul | 5–5 | 50.00% |
| Penumbra vs Yoshimitsu | 7–3 | 70.00% |
| Penumbra vs Jin | 7–2 | 77.78% |
| Penumbra vs King | 7–0 | 100.00% |
| Penumbra vs Devil Jin | 3–3 | 50.00% |
| Penumbra vs Feng | 1–5 | 16.67% |
| Penumbra vs Victor | 4–2 | 66.67% |
| Penumbra vs Steve | 4–1 | 80.00% |
| Penumbra vs Leo | 3–2 | 60.00% |
| Penumbra vs Reina | 3–2 | 60.00% |
| Penumbra vs Azucena | 5–0 | 100.00% |
| Penumbra vs Bryan | 2–2 | 50.00% |
| Penumbra vs Asuka | 3–1 | 75.00% |
| Penumbra vs Lili | 2–2 | 50.00% |
| Penumbra vs Hwoarang | 2–1 | 66.67% |
| Penumbra vs Lee | 1–2 | 33.33% |
| Penumbra vs Kuma | 2–1 | 66.67% |
| Penumbra vs Zafina | 1–2 | 33.33% |
| Penumbra vs Jack-8 | 1–1 | 50.00% |
| Penumbra vs Dragunov | 0–2 | 0.00% |
| Penumbra vs Nina | 0–2 | 0.00% |
| Penumbra vs Leroy | 0–2 | 0.00% |
| Penumbra vs Lidia | 2–0 | 100.00% |
| Penumbra vs Clive | 1–1 | 50.00% |
| Penumbra vs Xiaoyu | 1–0 | 100.00% |
| Penumbra vs Jun | 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.