| William Lyons vs Kazuya | 8–14 | 36.36% |
| William Lyons vs Reina | 8–11 | 42.11% |
| William Lyons vs Jin | 6–10 | 37.50% |
| William Lyons vs Jun | 3–9 | 25.00% |
| William Lyons vs Azucena | 2–7 | 22.22% |
| William Lyons vs King | 3–5 | 37.50% |
| William Lyons vs Paul | 3–4 | 42.86% |
| William Lyons vs Yoshimitsu | 3–4 | 42.86% |
| William Lyons vs Asuka | 1–6 | 14.29% |
| William Lyons vs Dragunov | 1–5 | 16.67% |
| William Lyons vs Alisa | 3–2 | 60.00% |
| William Lyons vs Law | 0–4 | 0.00% |
| William Lyons vs Lars | 2–2 | 50.00% |
| William Lyons vs Leroy | 0–4 | 0.00% |
| William Lyons vs Xiaoyu | 2–1 | 66.67% |
| William Lyons vs Bryan | 0–3 | 0.00% |
| William Lyons vs Steve | 2–1 | 66.67% |
| William Lyons vs Lili | 1–2 | 33.33% |
| William Lyons vs Nina | 2–1 | 66.67% |
| William Lyons vs Kuma | 1–2 | 33.33% |
| William Lyons vs Victor | 1–2 | 33.33% |
| William Lyons vs Feng | 0–2 | 0.00% |
| William Lyons vs Leo | 2–0 | 100.00% |
| William Lyons vs Claudio | 0–2 | 0.00% |
| William Lyons vs Hwoarang | 0–1 | 0.00% |
| William Lyons vs Jack-8 | 1–0 | 100.00% |
| William Lyons vs Shaheen | 0–1 | 0.00% |
| William Lyons vs Lee | 0–1 | 0.00% |
| William Lyons vs Raven | 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.