| Mekki Valentine vs Kazuya | 60–28 | 68.18% |
| Mekki Valentine vs Bryan | 45–23 | 66.18% |
| Mekki Valentine vs Jin | 43–21 | 67.19% |
| Mekki Valentine vs Armor King | 37–21 | 63.79% |
| Mekki Valentine vs Reina | 35–19 | 64.81% |
| Mekki Valentine vs King | 37–14 | 72.55% |
| Mekki Valentine vs Jun | 35–14 | 71.43% |
| Mekki Valentine vs Hwoarang | 26–17 | 60.47% |
| Mekki Valentine vs Steve | 27–16 | 62.79% |
| Mekki Valentine vs Dragunov | 27–16 | 62.79% |
| Mekki Valentine vs Yoshimitsu | 18–13 | 58.06% |
| Mekki Valentine vs Lili | 23–7 | 76.67% |
| Mekki Valentine vs Azucena | 11–19 | 36.67% |
| Mekki Valentine vs Paul | 15–11 | 57.69% |
| Mekki Valentine vs Law | 17–9 | 65.38% |
| Mekki Valentine vs Lars | 17–9 | 65.38% |
| Mekki Valentine vs Nina | 22–4 | 84.62% |
| Mekki Valentine vs Lee | 15–11 | 57.69% |
| Mekki Valentine vs Devil Jin | 21–4 | 84.00% |
| Mekki Valentine vs Heihachi | 12–13 | 48.00% |
| Mekki Valentine vs Asuka | 16–7 | 69.57% |
| Mekki Valentine vs Miary Zo | 6–17 | 26.09% |
| Mekki Valentine vs Fahkumram | 8–11 | 42.11% |
| Mekki Valentine vs Victor | 12–5 | 70.59% |
| Mekki Valentine vs Alisa | 10–6 | 62.50% |
| Mekki Valentine vs Leroy | 6–10 | 37.50% |
| Mekki Valentine vs Eddy | 12–4 | 75.00% |
| Mekki Valentine vs Lidia | 9–6 | 60.00% |
| Mekki Valentine vs Raven | 10–4 | 71.43% |
| Mekki Valentine vs Jack-8 | 9–3 | 75.00% |
| Mekki Valentine vs Leo | 10–2 | 83.33% |
| Mekki Valentine vs Shaheen | 8–4 | 66.67% |
| Mekki Valentine vs Zafina | 9–3 | 75.00% |
| Mekki Valentine vs Kuma | 6–5 | 54.55% |
| Mekki Valentine vs Xiaoyu | 6–4 | 60.00% |
| Mekki Valentine vs Feng | 7–3 | 70.00% |
| Mekki Valentine vs Clive | 5–5 | 50.00% |
| Mekki Valentine vs Claudio | 4–4 | 50.00% |
| Mekki Valentine vs Anna | 3–4 | 42.86% |
| Mekki Valentine vs Panda | 6–0 | 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.