| Giuseppe Massar vs Jin | 54–65 | 45.38% |
| Giuseppe Massar vs Kazuya | 53–65 | 44.92% |
| Giuseppe Massar vs King | 43–53 | 44.79% |
| Giuseppe Massar vs Hwoarang | 44–51 | 46.32% |
| Giuseppe Massar vs Steve | 37–49 | 43.02% |
| Giuseppe Massar vs Law | 42–36 | 53.85% |
| Giuseppe Massar vs Bryan | 34–36 | 48.57% |
| Giuseppe Massar vs Paul | 28–31 | 47.46% |
| Giuseppe Massar vs Yoshimitsu | 27–32 | 45.76% |
| Giuseppe Massar vs Lili | 28–25 | 52.83% |
| Giuseppe Massar vs Asuka | 16–31 | 34.04% |
| Giuseppe Massar vs Jun | 19–26 | 42.22% |
| Giuseppe Massar vs Reina | 13–30 | 30.23% |
| Giuseppe Massar vs Heihachi | 20–23 | 46.51% |
| Giuseppe Massar vs Dragunov | 21–17 | 55.26% |
| Giuseppe Massar vs Devil Jin | 10–26 | 27.78% |
| Giuseppe Massar vs Feng | 15–16 | 48.39% |
| Giuseppe Massar vs Eddy | 10–21 | 32.26% |
| Giuseppe Massar vs Lars | 12–18 | 40.00% |
| Giuseppe Massar vs Lee | 9–20 | 31.03% |
| Giuseppe Massar vs Leroy | 14–15 | 48.28% |
| Giuseppe Massar vs Alisa | 17–10 | 62.96% |
| Giuseppe Massar vs Azucena | 15–11 | 57.69% |
| Giuseppe Massar vs Lidia | 12–13 | 48.00% |
| Giuseppe Massar vs Raven | 6–15 | 28.57% |
| Giuseppe Massar vs Clive | 7–11 | 38.89% |
| Giuseppe Massar vs Xiaoyu | 7–10 | 41.18% |
| Giuseppe Massar vs Nina | 10–7 | 58.82% |
| Giuseppe Massar vs Anna | 7–10 | 41.18% |
| Giuseppe Massar vs Leo | 6–7 | 46.15% |
| Giuseppe Massar vs Jack-8 | 8–4 | 66.67% |
| Giuseppe Massar vs Victor | 7–5 | 58.33% |
| Giuseppe Massar vs Fahkumram | 6–6 | 50.00% |
| Giuseppe Massar vs Kuma | 5–5 | 50.00% |
| Giuseppe Massar vs Claudio | 4–5 | 44.44% |
| Giuseppe Massar vs Armor King | 1–8 | 11.11% |
| Giuseppe Massar vs Shaheen | 1–3 | 25.00% |
| Giuseppe Massar vs Panda | 0–1 | 0.00% |
| Giuseppe Massar vs Zafina | 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.