| Illness Shadow vs Dragunov | 7–11 | 38.89% |
| Illness Shadow vs Yoshimitsu | 7–10 | 41.18% |
| Illness Shadow vs Reina | 11–6 | 64.71% |
| Illness Shadow vs King | 5–11 | 31.25% |
| Illness Shadow vs Law | 4–10 | 28.57% |
| Illness Shadow vs Paul | 1–12 | 7.69% |
| Illness Shadow vs Hwoarang | 7–6 | 53.85% |
| Illness Shadow vs Armor King | 0–11 | 0.00% |
| Illness Shadow vs Bryan | 4–6 | 40.00% |
| Illness Shadow vs Alisa | 3–7 | 30.00% |
| Illness Shadow vs Eddy | 0–10 | 0.00% |
| Illness Shadow vs Lili | 2–6 | 25.00% |
| Illness Shadow vs Lee | 2–6 | 25.00% |
| Illness Shadow vs Kazuya | 4–3 | 57.14% |
| Illness Shadow vs Steve | 3–4 | 42.86% |
| Illness Shadow vs Fahkumram | 3–4 | 42.86% |
| Illness Shadow vs Jack-8 | 2–4 | 33.33% |
| Illness Shadow vs Lars | 4–2 | 66.67% |
| Illness Shadow vs Jun | 1–5 | 16.67% |
| Illness Shadow vs Jin | 2–2 | 50.00% |
| Illness Shadow vs Claudio | 0–4 | 0.00% |
| Illness Shadow vs Kuma | 1–3 | 25.00% |
| Illness Shadow vs Victor | 0–4 | 0.00% |
| Illness Shadow vs Nina | 2–1 | 66.67% |
| Illness Shadow vs Leroy | 1–2 | 33.33% |
| Illness Shadow vs Azucena | 0–3 | 0.00% |
| Illness Shadow vs Devil Jin | 1–1 | 50.00% |
| Illness Shadow vs Zafina | 2–0 | 100.00% |
| Illness Shadow vs Raven | 0–2 | 0.00% |
| Illness Shadow vs Anna | 0–2 | 0.00% |
| Illness Shadow vs Xiaoyu | 1–0 | 100.00% |
| Illness Shadow vs Asuka | 1–0 | 100.00% |
| Illness Shadow vs Leo | 1–0 | 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.