| Jun Williams vs Jin | 39–17 | 69.64% |
| Jun Williams vs King | 27–24 | 52.94% |
| Jun Williams vs Steve | 25–26 | 49.02% |
| Jun Williams vs Law | 22–28 | 44.00% |
| Jun Williams vs Kazuya | 31–17 | 64.58% |
| Jun Williams vs Azucena | 26–18 | 59.09% |
| Jun Williams vs Bryan | 22–17 | 56.41% |
| Jun Williams vs Reina | 23–14 | 62.16% |
| Jun Williams vs Eddy | 21–14 | 60.00% |
| Jun Williams vs Paul | 23–8 | 74.19% |
| Jun Williams vs Hwoarang | 17–14 | 54.84% |
| Jun Williams vs Asuka | 16–15 | 51.61% |
| Jun Williams vs Victor | 11–18 | 37.93% |
| Jun Williams vs Xiaoyu | 21–6 | 77.78% |
| Jun Williams vs Lee | 18–8 | 69.23% |
| Jun Williams vs Anna | 19–5 | 79.17% |
| Jun Williams vs Yoshimitsu | 17–6 | 73.91% |
| Jun Williams vs Lars | 9–13 | 40.91% |
| Jun Williams vs Jun | 15–7 | 68.18% |
| Jun Williams vs Clive | 10–12 | 45.45% |
| Jun Williams vs Nina | 16–5 | 76.19% |
| Jun Williams vs Lili | 13–5 | 72.22% |
| Jun Williams vs Alisa | 12–6 | 66.67% |
| Jun Williams vs Leo | 10–7 | 58.82% |
| Jun Williams vs Heihachi | 12–5 | 70.59% |
| Jun Williams vs Devil Jin | 8–8 | 50.00% |
| Jun Williams vs Dragunov | 12–4 | 75.00% |
| Jun Williams vs Lidia | 10–6 | 62.50% |
| Jun Williams vs Jack-8 | 8–7 | 53.33% |
| Jun Williams vs Zafina | 6–9 | 40.00% |
| Jun Williams vs Feng | 4–10 | 28.57% |
| Jun Williams vs Miary Zo | 7–3 | 70.00% |
| Jun Williams vs Kuma | 7–1 | 87.50% |
| Jun Williams vs Raven | 4–3 | 57.14% |
| Jun Williams vs Armor King | 3–4 | 42.86% |
| Jun Williams vs Claudio | 5–1 | 83.33% |
| Jun Williams vs Leroy | 4–2 | 66.67% |
| Jun Williams vs Shaheen | 1–3 | 25.00% |
| Jun Williams vs Panda | 1–2 | 33.33% |
| Jun Williams vs Fahkumram | 2–1 | 66.67% |
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.