| Williard vs Jin | 33–30 | 52.38% |
| Williard vs Kazuya | 25–29 | 46.30% |
| Williard vs Reina | 30–23 | 56.60% |
| Williard vs Hwoarang | 28–23 | 54.90% |
| Williard vs Yoshimitsu | 23–22 | 51.11% |
| Williard vs Heihachi | 20–23 | 46.51% |
| Williard vs Law | 16–24 | 40.00% |
| Williard vs King | 20–20 | 50.00% |
| Williard vs Bryan | 17–20 | 45.95% |
| Williard vs Azucena | 24–13 | 64.86% |
| Williard vs Lili | 20–9 | 68.97% |
| Williard vs Lars | 17–12 | 58.62% |
| Williard vs Nina | 12–17 | 41.38% |
| Williard vs Steve | 14–14 | 50.00% |
| Williard vs Dragunov | 13–14 | 48.15% |
| Williard vs Leo | 16–8 | 66.67% |
| Williard vs Paul | 10–13 | 43.48% |
| Williard vs Lidia | 9–14 | 39.13% |
| Williard vs Xiaoyu | 13–8 | 61.90% |
| Williard vs Jun | 11–10 | 52.38% |
| Williard vs Armor King | 11–10 | 52.38% |
| Williard vs Lee | 8–12 | 40.00% |
| Williard vs Alisa | 12–7 | 63.16% |
| Williard vs Eddy | 6–13 | 31.58% |
| Williard vs Asuka | 6–12 | 33.33% |
| Williard vs Victor | 9–8 | 52.94% |
| Williard vs Feng | 7–5 | 58.33% |
| Williard vs Leroy | 5–7 | 41.67% |
| Williard vs Raven | 4–7 | 36.36% |
| Williard vs Jack-8 | 5–4 | 55.56% |
| Williard vs Clive | 6–3 | 66.67% |
| Williard vs Fahkumram | 3–3 | 50.00% |
| Williard vs Claudio | 5–0 | 100.00% |
| Williard vs Panda | 2–2 | 50.00% |
| Williard vs Shaheen | 3–0 | 100.00% |
| Williard vs Devil Jin | 0–2 | 0.00% |
| Williard vs Kuma | 0–2 | 0.00% |
| Williard vs Anna | 0–2 | 0.00% |
| Williard vs Zafina | 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.