| Welch_Zero vs Dragunov | 234–297 | 44.07% |
| Welch_Zero vs Bryan | 289–237 | 54.94% |
| Welch_Zero vs Hwoarang | 224–226 | 49.78% |
| Welch_Zero vs Kazuya | 238–205 | 53.72% |
| Welch_Zero vs Jin | 182–186 | 49.46% |
| Welch_Zero vs Steve | 175–181 | 49.16% |
| Welch_Zero vs Yoshimitsu | 146–197 | 42.57% |
| Welch_Zero vs Paul | 171–160 | 51.66% |
| Welch_Zero vs King | 150–173 | 46.44% |
| Welch_Zero vs Law | 147–162 | 47.57% |
| Welch_Zero vs Asuka | 153–154 | 49.84% |
| Welch_Zero vs Lili | 151–150 | 50.17% |
| Welch_Zero vs Victor | 173–127 | 57.67% |
| Welch_Zero vs Reina | 157–130 | 54.70% |
| Welch_Zero vs Devil Jin | 148–115 | 56.27% |
| Welch_Zero vs Jun | 112–148 | 43.08% |
| Welch_Zero vs Jack-8 | 133–118 | 52.99% |
| Welch_Zero vs Lars | 125–125 | 50.00% |
| Welch_Zero vs Xiaoyu | 114–129 | 46.91% |
| Welch_Zero vs Feng | 132–108 | 55.00% |
| Welch_Zero vs Eddy | 123–116 | 51.46% |
| Welch_Zero vs Azucena | 121–106–1 | 53.30% |
| Welch_Zero vs Claudio | 108–106 | 50.47% |
| Welch_Zero vs Leroy | 80–133 | 37.56% |
| Welch_Zero vs Nina | 87–115 | 43.07% |
| Welch_Zero vs Raven | 92–108 | 46.00% |
| Welch_Zero vs Lee | 91–101 | 47.40% |
| Welch_Zero vs Alisa | 87–94 | 48.07% |
| Welch_Zero vs Clive | 92–87 | 51.40% |
| Welch_Zero vs Heihachi | 90–86 | 51.14% |
| Welch_Zero vs Shaheen | 90–84 | 51.72% |
| Welch_Zero vs Leo | 67–89 | 42.95% |
| Welch_Zero vs Kuma | 84–72 | 53.85% |
| Welch_Zero vs Zafina | 60–63 | 48.78% |
| Welch_Zero vs Lidia | 61–51 | 54.46% |
| Welch_Zero vs Fahkumram | 40–40 | 50.00% |
| Welch_Zero vs Armor King | 37–36 | 50.68% |
| Welch_Zero vs Miary Zo | 20–28 | 41.67% |
| Welch_Zero vs Anna | 21–20 | 51.22% |
| Welch_Zero vs Panda | 23–14 | 62.16% |
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.