| Asthmatic_Duppy vs King | 57–54 | 51.35% |
| Asthmatic_Duppy vs Reina | 57–46 | 55.34% |
| Asthmatic_Duppy vs Jin | 55–46 | 54.46% |
| Asthmatic_Duppy vs Hwoarang | 50–46 | 52.08% |
| Asthmatic_Duppy vs Kazuya | 57–35 | 61.96% |
| Asthmatic_Duppy vs Steve | 57–35 | 61.96% |
| Asthmatic_Duppy vs Bryan | 47–41 | 53.41% |
| Asthmatic_Duppy vs Lili | 40–37 | 51.95% |
| Asthmatic_Duppy vs Lars | 44–31 | 58.67% |
| Asthmatic_Duppy vs Paul | 37–30 | 55.22% |
| Asthmatic_Duppy vs Azucena | 32–32 | 50.00% |
| Asthmatic_Duppy vs Yoshimitsu | 31–27 | 53.45% |
| Asthmatic_Duppy vs Dragunov | 29–29 | 50.00% |
| Asthmatic_Duppy vs Law | 33–24 | 57.89% |
| Asthmatic_Duppy vs Feng | 36–21 | 63.16% |
| Asthmatic_Duppy vs Lee | 27–26 | 50.94% |
| Asthmatic_Duppy vs Victor | 33–20 | 62.26% |
| Asthmatic_Duppy vs Xiaoyu | 26–25 | 50.98% |
| Asthmatic_Duppy vs Asuka | 28–22 | 56.00% |
| Asthmatic_Duppy vs Leroy | 28–22 | 56.00% |
| Asthmatic_Duppy vs Leo | 25–16 | 60.98% |
| Asthmatic_Duppy vs Jun | 24–17 | 58.54% |
| Asthmatic_Duppy vs Lidia | 22–19 | 53.66% |
| Asthmatic_Duppy vs Zafina | 23–16 | 58.97% |
| Asthmatic_Duppy vs Eddy | 25–14 | 64.10% |
| Asthmatic_Duppy vs Devil Jin | 17–19 | 47.22% |
| Asthmatic_Duppy vs Nina | 15–20 | 42.86% |
| Asthmatic_Duppy vs Alisa | 13–15 | 46.43% |
| Asthmatic_Duppy vs Claudio | 13–12 | 52.00% |
| Asthmatic_Duppy vs Jack-8 | 13–10 | 56.52% |
| Asthmatic_Duppy vs Raven | 9–14 | 39.13% |
| Asthmatic_Duppy vs Kuma | 7–10 | 41.18% |
| Asthmatic_Duppy vs Heihachi | 7–8 | 46.67% |
| Asthmatic_Duppy vs Clive | 8–5 | 61.54% |
| Asthmatic_Duppy vs Anna | 7–4 | 63.64% |
| Asthmatic_Duppy vs Shaheen | 4–5 | 44.44% |
| Asthmatic_Duppy vs Armor King | 2–4 | 33.33% |
| Asthmatic_Duppy vs Panda | 3–1 | 75.00% |
| Asthmatic_Duppy vs Fahkumram | 2–2 | 50.00% |
| Asthmatic_Duppy vs Miary Zo | 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.