| Merio vs Steve | 19–27 | 41.30% |
| Merio vs Kazuya | 17–27 | 38.64% |
| Merio vs King | 15–21 | 41.67% |
| Merio vs Reina | 16–17 | 48.48% |
| Merio vs Law | 15–15 | 50.00% |
| Merio vs Hwoarang | 10–19 | 34.48% |
| Merio vs Jin | 10–17 | 37.04% |
| Merio vs Eddy | 6–19 | 24.00% |
| Merio vs Fahkumram | 4–20 | 16.67% |
| Merio vs Asuka | 13–8 | 61.90% |
| Merio vs Victor | 7–14 | 33.33% |
| Merio vs Heihachi | 11–10 | 52.38% |
| Merio vs Jun | 8–12 | 40.00% |
| Merio vs Bryan | 8–11 | 42.11% |
| Merio vs Lili | 7–12 | 36.84% |
| Merio vs Lars | 8–10 | 44.44% |
| Merio vs Azucena | 9–9 | 50.00% |
| Merio vs Xiaoyu | 10–7 | 58.82% |
| Merio vs Lidia | 8–8 | 50.00% |
| Merio vs Yoshimitsu | 4–9 | 30.77% |
| Merio vs Dragunov | 3–10 | 23.08% |
| Merio vs Nina | 6–7 | 46.15% |
| Merio vs Raven | 6–6 | 50.00% |
| Merio vs Jack-8 | 1–10 | 9.09% |
| Merio vs Leo | 2–9 | 18.18% |
| Merio vs Lee | 6–3 | 66.67% |
| Merio vs Paul | 1–6 | 14.29% |
| Merio vs Alisa | 3–4 | 42.86% |
| Merio vs Devil Jin | 4–2 | 66.67% |
| Merio vs Claudio | 3–3 | 50.00% |
| Merio vs Kuma | 1–5 | 16.67% |
| Merio vs Zafina | 2–4 | 33.33% |
| Merio vs Shaheen | 3–2 | 60.00% |
| Merio vs Anna | 2–3 | 40.00% |
| Merio vs Leroy | 3–0 | 100.00% |
| Merio vs Feng | 1–0 | 100.00% |
| Merio vs Clive | 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.