| Dayy vs Kazuya | 46–40 | 53.49% |
| Dayy vs King | 51–33 | 60.71% |
| Dayy vs Dragunov | 46–32 | 58.97% |
| Dayy vs Jin | 44–31 | 58.67% |
| Dayy vs Paul | 34–29 | 53.97% |
| Dayy vs Claudio | 27–32 | 45.76% |
| Dayy vs Hwoarang | 38–20 | 65.52% |
| Dayy vs Yoshimitsu | 24–33 | 42.11% |
| Dayy vs Heihachi | 35–21 | 62.50% |
| Dayy vs Asuka | 27–28 | 49.09% |
| Dayy vs Bryan | 27–23 | 54.00% |
| Dayy vs Lili | 24–25 | 48.98% |
| Dayy vs Victor | 35–14 | 71.43% |
| Dayy vs Reina | 26–22 | 54.17% |
| Dayy vs Lidia | 25–15 | 62.50% |
| Dayy vs Nina | 20–15 | 57.14% |
| Dayy vs Steve | 19–15 | 55.88% |
| Dayy vs Jun | 18–12 | 60.00% |
| Dayy vs Azucena | 18–10 | 64.29% |
| Dayy vs Xiaoyu | 14–13 | 51.85% |
| Dayy vs Alisa | 18–7 | 72.00% |
| Dayy vs Lee | 8–17 | 32.00% |
| Dayy vs Law | 16–8 | 66.67% |
| Dayy vs Feng | 14–10 | 58.33% |
| Dayy vs Devil Jin | 12–7 | 63.16% |
| Dayy vs Jack-8 | 10–7 | 58.82% |
| Dayy vs Leo | 7–10 | 41.18% |
| Dayy vs Lars | 3–13 | 18.75% |
| Dayy vs Eddy | 10–5 | 66.67% |
| Dayy vs Raven | 6–8 | 42.86% |
| Dayy vs Leroy | 3–10 | 23.08% |
| Dayy vs Zafina | 6–5 | 54.55% |
| Dayy vs Kuma | 5–5 | 50.00% |
| Dayy vs Shaheen | 3–3 | 50.00% |
| Dayy vs Panda | 1–0 | 100.00% |
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.