| Welfero vs Jin | 94–97 | 49.21% |
| Welfero vs Kazuya | 100–91 | 52.36% |
| Welfero vs King | 102–87 | 53.97% |
| Welfero vs Bryan | 89–92–1 | 49.17% |
| Welfero vs Hwoarang | 67–87 | 43.51% |
| Welfero vs Reina | 75–76 | 49.67% |
| Welfero vs Paul | 65–69 | 48.51% |
| Welfero vs Lili | 62–71 | 46.62% |
| Welfero vs Yoshimitsu | 52–68 | 43.33% |
| Welfero vs Steve | 55–59 | 48.25% |
| Welfero vs Dragunov | 50–52 | 49.02% |
| Welfero vs Law | 45–46 | 49.45% |
| Welfero vs Jun | 39–47 | 45.35% |
| Welfero vs Devil Jin | 38–46 | 45.24% |
| Welfero vs Feng | 29–40 | 42.03% |
| Welfero vs Lee | 34–35 | 49.28% |
| Welfero vs Azucena | 35–34 | 50.72% |
| Welfero vs Asuka | 21–43 | 32.81% |
| Welfero vs Victor | 22–38 | 36.67% |
| Welfero vs Xiaoyu | 28–29 | 49.12% |
| Welfero vs Nina | 25–30 | 45.45% |
| Welfero vs Alisa | 21–32 | 39.62% |
| Welfero vs Eddy | 22–24 | 47.83% |
| Welfero vs Lars | 21–24 | 46.67% |
| Welfero vs Leo | 16–26 | 38.10% |
| Welfero vs Claudio | 26–14 | 65.00% |
| Welfero vs Leroy | 11–26 | 29.73% |
| Welfero vs Heihachi | 15–22 | 40.54% |
| Welfero vs Lidia | 18–16 | 52.94% |
| Welfero vs Zafina | 7–25 | 21.88% |
| Welfero vs Jack-8 | 16–14 | 53.33% |
| Welfero vs Raven | 12–18 | 40.00% |
| Welfero vs Kuma | 12–12 | 50.00% |
| Welfero vs Shaheen | 9–10 | 47.37% |
| Welfero vs Panda | 3–6 | 33.33% |
| Welfero vs Clive | 1–7 | 12.50% |
| Welfero vs Anna | 4–3 | 57.14% |
| Welfero vs Fahkumram | 1–4 | 20.00% |
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.