| Piraa vs Kazuya | 128–171 | 42.81% |
| Piraa vs Jin | 115–118 | 49.36% |
| Piraa vs King | 115–103 | 52.75% |
| Piraa vs Heihachi | 113–96 | 54.07% |
| Piraa vs Hwoarang | 100–101 | 49.75% |
| Piraa vs Bryan | 96–104 | 48.00% |
| Piraa vs Law | 96–89 | 51.89% |
| Piraa vs Lili | 88–81 | 52.07% |
| Piraa vs Steve | 92–76 | 54.76% |
| Piraa vs Reina | 76–91 | 45.51% |
| Piraa vs Dragunov | 79–84 | 48.47% |
| Piraa vs Paul | 86–73 | 54.09% |
| Piraa vs Armor King | 70–76 | 47.95% |
| Piraa vs Fahkumram | 67–75 | 47.18% |
| Piraa vs Yoshimitsu | 65–65 | 50.00% |
| Piraa vs Lee | 59–53 | 52.68% |
| Piraa vs Devil Jin | 44–59 | 42.72% |
| Piraa vs Jun | 44–52 | 45.83% |
| Piraa vs Alisa | 51–44 | 53.68% |
| Piraa vs Anna | 52–42 | 55.32% |
| Piraa vs Xiaoyu | 40–52 | 43.48% |
| Piraa vs Feng | 51–41 | 55.43% |
| Piraa vs Azucena | 52–33 | 61.18% |
| Piraa vs Lidia | 44–41 | 51.76% |
| Piraa vs Clive | 33–46 | 41.77% |
| Piraa vs Lars | 35–43 | 44.87% |
| Piraa vs Nina | 38–39 | 49.35% |
| Piraa vs Victor | 37–39 | 48.68% |
| Piraa vs Raven | 39–36 | 52.00% |
| Piraa vs Asuka | 41–32 | 56.16% |
| Piraa vs Miary Zo | 23–26 | 46.94% |
| Piraa vs Claudio | 14–34 | 29.17% |
| Piraa vs Eddy | 17–23 | 42.50% |
| Piraa vs Jack-8 | 19–20 | 48.72% |
| Piraa vs Zafina | 15–19 | 44.12% |
| Piraa vs Leroy | 15–19 | 44.12% |
| Piraa vs Leo | 15–13 | 53.57% |
| Piraa vs Shaheen | 13–9 | 59.09% |
| Piraa vs Kuma | 7–14 | 33.33% |
| Piraa vs Panda | 4–6 | 40.00% |
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.