| Westie vs Jin | 22–20 | 52.38% |
| Westie vs Law | 17–20 | 45.95% |
| Westie vs Hwoarang | 15–21 | 41.67% |
| Westie vs Kazuya | 21–14 | 60.00% |
| Westie vs King | 15–17 | 46.88% |
| Westie vs Bryan | 17–13 | 56.67% |
| Westie vs Reina | 12–15 | 44.44% |
| Westie vs Paul | 9–14 | 39.13% |
| Westie vs Steve | 13–9 | 59.09% |
| Westie vs Victor | 11–10 | 52.38% |
| Westie vs Heihachi | 10–9 | 52.63% |
| Westie vs Lili | 9–8 | 52.94% |
| Westie vs Lee | 8–8 | 50.00% |
| Westie vs Jun | 5–11 | 31.25% |
| Westie vs Asuka | 8–7 | 53.33% |
| Westie vs Dragunov | 6–8 | 42.86% |
| Westie vs Nina | 8–6 | 57.14% |
| Westie vs Leo | 7–6 | 53.85% |
| Westie vs Eddy | 4–9 | 30.77% |
| Westie vs Feng | 5–6 | 45.45% |
| Westie vs Yoshimitsu | 7–3 | 70.00% |
| Westie vs Azucena | 3–7 | 30.00% |
| Westie vs Claudio | 4–5 | 44.44% |
| Westie vs Lidia | 2–7 | 22.22% |
| Westie vs Raven | 4–4 | 50.00% |
| Westie vs Lars | 1–6 | 14.29% |
| Westie vs Clive | 2–5 | 28.57% |
| Westie vs Anna | 3–4 | 42.86% |
| Westie vs Fahkumram | 2–5 | 28.57% |
| Westie vs Devil Jin | 2–4 | 33.33% |
| Westie vs Alisa | 3–3 | 50.00% |
| Westie vs Armor King | 5–1 | 83.33% |
| Westie vs Xiaoyu | 0–4 | 0.00% |
| Westie vs Leroy | 2–2 | 50.00% |
| Westie vs Shaheen | 1–2 | 33.33% |
| Westie vs Miary Zo | 0–3 | 0.00% |
| Westie vs Panda | 0–2 | 0.00% |
| Westie vs Zafina | 0–2 | 0.00% |
| Westie vs Jack-8 | 0–1 | 0.00% |
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.