| William 14005 vs Yoshimitsu | 9–13 | 40.91% |
| William 14005 vs Steve | 14–8 | 63.64% |
| William 14005 vs King | 8–13 | 38.10% |
| William 14005 vs Jin | 9–11 | 45.00% |
| William 14005 vs Dragunov | 6–12 | 33.33% |
| William 14005 vs Reina | 6–10 | 37.50% |
| William 14005 vs Eddy | 12–4 | 75.00% |
| William 14005 vs Bryan | 11–1 | 91.67% |
| William 14005 vs Kazuya | 5–3 | 62.50% |
| William 14005 vs Jack-8 | 3–4 | 42.86% |
| William 14005 vs Armor King | 1–6 | 14.29% |
| William 14005 vs Law | 1–5 | 16.67% |
| William 14005 vs Feng | 2–4 | 33.33% |
| William 14005 vs Lars | 6–0 | 100.00% |
| William 14005 vs Heihachi | 2–4 | 33.33% |
| William 14005 vs Hwoarang | 4–1 | 80.00% |
| William 14005 vs Xiaoyu | 1–4 | 20.00% |
| William 14005 vs Lili | 4–1 | 80.00% |
| William 14005 vs Claudio | 3–2 | 60.00% |
| William 14005 vs Devil Jin | 2–2 | 50.00% |
| William 14005 vs Lee | 2–2 | 50.00% |
| William 14005 vs Azucena | 1–3 | 25.00% |
| William 14005 vs Asuka | 3–0 | 100.00% |
| William 14005 vs Zafina | 2–1 | 66.67% |
| William 14005 vs Nina | 2–0 | 100.00% |
| William 14005 vs Victor | 0–2 | 0.00% |
| William 14005 vs Raven | 0–2 | 0.00% |
| William 14005 vs Fahkumram | 0–2 | 0.00% |
| William 14005 vs Anna | 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.