| KWill vs King | 41–66 | 38.32% |
| KWill vs Jin | 34–61 | 35.79% |
| KWill vs Kazuya | 46–37 | 55.42% |
| KWill vs Law | 29–44 | 39.73% |
| KWill vs Clive | 20–46 | 30.30% |
| KWill vs Reina | 27–36 | 42.86% |
| KWill vs Azucena | 23–39 | 37.10% |
| KWill vs Hwoarang | 28–25 | 52.83% |
| KWill vs Eddy | 16–33 | 32.65% |
| KWill vs Asuka | 16–28 | 36.36% |
| KWill vs Steve | 18–25 | 41.86% |
| KWill vs Heihachi | 10–32 | 23.81% |
| KWill vs Paul | 13–25 | 34.21% |
| KWill vs Lars | 14–22 | 38.89% |
| KWill vs Bryan | 10–25 | 28.57% |
| KWill vs Jun | 15–17 | 46.88% |
| KWill vs Nina | 17–13 | 56.67% |
| KWill vs Yoshimitsu | 13–16 | 44.83% |
| KWill vs Leroy | 14–13 | 51.85% |
| KWill vs Dragunov | 17–9 | 65.38% |
| KWill vs Lee | 9–17 | 34.62% |
| KWill vs Raven | 11–14 | 44.00% |
| KWill vs Lili | 10–14 | 41.67% |
| KWill vs Victor | 7–16 | 30.43% |
| KWill vs Zafina | 9–11 | 45.00% |
| KWill vs Leo | 10–9 | 52.63% |
| KWill vs Lidia | 7–12 | 36.84% |
| KWill vs Feng | 5–13 | 27.78% |
| KWill vs Devil Jin | 5–12 | 29.41% |
| KWill vs Xiaoyu | 9–6 | 60.00% |
| KWill vs Anna | 3–12 | 20.00% |
| KWill vs Kuma | 4–8 | 33.33% |
| KWill vs Claudio | 4–5 | 44.44% |
| KWill vs Shaheen | 3–6 | 33.33% |
| KWill vs Jack-8 | 1–6 | 14.29% |
| KWill vs Alisa | 5–2 | 71.43% |
| KWill vs Panda | 3–4 | 42.86% |
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.