| Dayday vs Reina | 32–24 | 57.14% |
| Dayday vs King | 29–21 | 58.00% |
| Dayday vs Steve | 15–23 | 39.47% |
| Dayday vs Law | 15–21 | 41.67% |
| Dayday vs Jin | 14–18 | 43.75% |
| Dayday vs Victor | 13–18 | 41.94% |
| Dayday vs Yoshimitsu | 16–14 | 53.33% |
| Dayday vs Kazuya | 16–14 | 53.33% |
| Dayday vs Lars | 13–17 | 43.33% |
| Dayday vs Hwoarang | 14–15 | 48.28% |
| Dayday vs Lili | 13–15 | 46.43% |
| Dayday vs Eddy | 6–19 | 24.00% |
| Dayday vs Dragunov | 9–14 | 39.13% |
| Dayday vs Bryan | 7–12 | 36.84% |
| Dayday vs Xiaoyu | 10–8 | 55.56% |
| Dayday vs Jun | 8–7 | 53.33% |
| Dayday vs Devil Jin | 5–8 | 38.46% |
| Dayday vs Feng | 7–5 | 58.33% |
| Dayday vs Heihachi | 10–2 | 83.33% |
| Dayday vs Lee | 7–4 | 63.64% |
| Dayday vs Lidia | 5–6 | 45.45% |
| Dayday vs Nina | 8–2 | 80.00% |
| Dayday vs Alisa | 4–5 | 44.44% |
| Dayday vs Azucena | 4–5 | 44.44% |
| Dayday vs Jack-8 | 6–2 | 75.00% |
| Dayday vs Leo | 5–3 | 62.50% |
| Dayday vs Shaheen | 4–4 | 50.00% |
| Dayday vs Clive | 1–6 | 14.29% |
| Dayday vs Fahkumram | 5–1 | 83.33% |
| Dayday vs Kuma | 3–2 | 60.00% |
| Dayday vs Raven | 5–0 | 100.00% |
| Dayday vs Asuka | 2–2 | 50.00% |
| Dayday vs Claudio | 2–2 | 50.00% |
| Dayday vs Paul | 2–1 | 66.67% |
| Dayday vs Leroy | 0–3 | 0.00% |
| Dayday vs Armor King | 2–0 | 100.00% |
| Dayday vs Miary Zo | 0–2 | 0.00% |
| Dayday 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.