| Sapphire Willow vs Hwoarang | 9–8 | 52.94% |
| Sapphire Willow vs Clive | 5–10 | 33.33% |
| Sapphire Willow vs King | 5–8 | 38.46% |
| Sapphire Willow vs Lili | 6–6 | 50.00% |
| Sapphire Willow vs Azucena | 7–4 | 63.64% |
| Sapphire Willow vs Asuka | 3–6 | 33.33% |
| Sapphire Willow vs Lidia | 4–5 | 44.44% |
| Sapphire Willow vs Heihachi | 8–1 | 88.89% |
| Sapphire Willow vs Law | 6–2 | 75.00% |
| Sapphire Willow vs Jin | 5–3 | 62.50% |
| Sapphire Willow vs Kazuya | 4–4 | 50.00% |
| Sapphire Willow vs Reina | 4–4 | 50.00% |
| Sapphire Willow vs Dragunov | 2–5 | 28.57% |
| Sapphire Willow vs Victor | 2–5 | 28.57% |
| Sapphire Willow vs Steve | 4–2 | 66.67% |
| Sapphire Willow vs Paul | 3–2 | 60.00% |
| Sapphire Willow vs Yoshimitsu | 3–2 | 60.00% |
| Sapphire Willow vs Devil Jin | 4–1 | 80.00% |
| Sapphire Willow vs Lee | 3–2 | 60.00% |
| Sapphire Willow vs Xiaoyu | 4–0 | 100.00% |
| Sapphire Willow vs Lars | 2–2 | 50.00% |
| Sapphire Willow vs Leroy | 2–2 | 50.00% |
| Sapphire Willow vs Eddy | 4–0 | 100.00% |
| Sapphire Willow vs Zafina | 1–2 | 33.33% |
| Sapphire Willow vs Jun | 2–1 | 66.67% |
| Sapphire Willow vs Leo | 0–2 | 0.00% |
| Sapphire Willow vs Alisa | 2–0 | 100.00% |
| Sapphire Willow vs Shaheen | 2–0 | 100.00% |
| Sapphire Willow vs Kuma | 1–1 | 50.00% |
| Sapphire Willow vs Panda | 2–0 | 100.00% |
| Sapphire Willow vs Raven | 0–2 | 0.00% |
| Sapphire Willow vs Claudio | 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.