| willow vs Kazuya | 41–32 | 56.16% |
| willow vs Jin | 26–30 | 46.43% |
| willow vs Lili | 26–29 | 47.27% |
| willow vs Paul | 21–33 | 38.89% |
| willow vs Steve | 25–27 | 48.08% |
| willow vs Armor King | 19–27 | 41.30% |
| willow vs Law | 14–31 | 31.11% |
| willow vs Asuka | 16–27 | 37.21% |
| willow vs Dragunov | 15–28 | 34.88% |
| willow vs King | 22–18 | 55.00% |
| willow vs Bryan | 14–26 | 35.00% |
| willow vs Reina | 18–21 | 46.15% |
| willow vs Jun | 21–17 | 55.26% |
| willow vs Hwoarang | 22–11 | 66.67% |
| willow vs Heihachi | 13–18 | 41.94% |
| willow vs Victor | 12–18 | 40.00% |
| willow vs Fahkumram | 16–14 | 53.33% |
| willow vs Lars | 9–19 | 32.14% |
| willow vs Azucena | 11–16 | 40.74% |
| willow vs Yoshimitsu | 6–15 | 28.57% |
| willow vs Leo | 9–12 | 42.86% |
| willow vs Clive | 12–9 | 57.14% |
| willow vs Leroy | 6–14 | 30.00% |
| willow vs Jack-8 | 9–9 | 50.00% |
| willow vs Lidia | 12–6 | 66.67% |
| willow vs Xiaoyu | 4–13 | 23.53% |
| willow vs Claudio | 9–8 | 52.94% |
| willow vs Anna | 4–13 | 23.53% |
| willow vs Devil Jin | 4–12 | 25.00% |
| willow vs Feng | 3–10 | 23.08% |
| willow vs Nina | 3–10 | 23.08% |
| willow vs Shaheen | 5–6 | 45.45% |
| willow vs Zafina | 5–4 | 55.56% |
| willow vs Miary Zo | 3–5 | 37.50% |
| willow vs Lee | 3–3 | 50.00% |
| willow vs Kuma | 2–4 | 33.33% |
| willow vs Alisa | 1–4 | 20.00% |
| willow vs Panda | 2–1 | 66.67% |
| willow vs Eddy | 1–2 | 33.33% |
| willow vs Raven | 1–1 | 50.00% |
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.