| Welsh vs Kazuya | 139–97 | 58.90% |
| Welsh vs Jin | 110–89 | 55.28% |
| Welsh vs Bryan | 87–84 | 50.88% |
| Welsh vs Heihachi | 85–76 | 52.80% |
| Welsh vs King | 67–77 | 46.53% |
| Welsh vs Reina | 85–56 | 60.28% |
| Welsh vs Hwoarang | 80–42 | 65.57% |
| Welsh vs Steve | 60–50 | 54.55% |
| Welsh vs Law | 52–35 | 59.77% |
| Welsh vs Dragunov | 49–38 | 56.32% |
| Welsh vs Yoshimitsu | 47–36 | 56.63% |
| Welsh vs Devil Jin | 47–34 | 58.02% |
| Welsh vs Paul | 41–33 | 55.41% |
| Welsh vs Lee | 34–29 | 53.97% |
| Welsh vs Nina | 28–31 | 47.46% |
| Welsh vs Azucena | 26–31 | 45.61% |
| Welsh vs Lidia | 33–23 | 58.93% |
| Welsh vs Asuka | 33–22 | 60.00% |
| Welsh vs Lili | 25–29 | 46.30% |
| Welsh vs Alisa | 25–29 | 46.30% |
| Welsh vs Jun | 27–23 | 54.00% |
| Welsh vs Clive | 25–23 | 52.08% |
| Welsh vs Leroy | 25–22 | 53.19% |
| Welsh vs Feng | 29–16 | 64.44% |
| Welsh vs Xiaoyu | 22–21 | 51.16% |
| Welsh vs Raven | 21–22 | 48.84% |
| Welsh vs Eddy | 17–25 | 40.48% |
| Welsh vs Fahkumram | 19–22 | 46.34% |
| Welsh vs Jack-8 | 16–18 | 47.06% |
| Welsh vs Leo | 17–15 | 53.12% |
| Welsh vs Victor | 13–18 | 41.94% |
| Welsh vs Lars | 11–19 | 36.67% |
| Welsh vs Shaheen | 15–13 | 53.57% |
| Welsh vs Armor King | 10–13 | 43.48% |
| Welsh vs Claudio | 9–12 | 42.86% |
| Welsh vs Zafina | 14–5 | 73.68% |
| Welsh vs Anna | 5–13 | 27.78% |
| Welsh vs Kuma | 7–10 | 41.18% |
| Welsh vs Panda | 3–4 | 42.86% |
| Welsh vs Miary Zo | 0–3 | 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.