| Pirow vs Kazuya | 151–193 | 43.90% |
| Pirow vs Jin | 135–185 | 42.19% |
| Pirow vs King | 139–150 | 48.10% |
| Pirow vs Bryan | 105–131 | 44.49% |
| Pirow vs Reina | 90–118 | 43.27% |
| Pirow vs Hwoarang | 87–114 | 43.28% |
| Pirow vs Law | 88–99 | 47.06% |
| Pirow vs Steve | 83–94 | 46.89% |
| Pirow vs Dragunov | 70–92 | 43.21% |
| Pirow vs Heihachi | 69–89 | 43.67% |
| Pirow vs Yoshimitsu | 68–84 | 44.74% |
| Pirow vs Paul | 71–74 | 48.97% |
| Pirow vs Lili | 59–72 | 45.04% |
| Pirow vs Asuka | 51–43 | 54.26% |
| Pirow vs Clive | 43–48 | 47.25% |
| Pirow vs Azucena | 48–41 | 53.93% |
| Pirow vs Eddy | 35–50 | 41.18% |
| Pirow vs Devil Jin | 24–57 | 29.63% |
| Pirow vs Lars | 28–51 | 35.44% |
| Pirow vs Nina | 34–41 | 45.33% |
| Pirow vs Alisa | 30–44 | 40.54% |
| Pirow vs Jun | 41–33 | 55.41% |
| Pirow vs Lee | 34–37 | 47.89% |
| Pirow vs Victor | 34–32 | 51.52% |
| Pirow vs Xiaoyu | 26–32 | 44.83% |
| Pirow vs Leroy | 25–33 | 43.10% |
| Pirow vs Fahkumram | 17–41 | 29.31% |
| Pirow vs Feng | 25–32 | 43.86% |
| Pirow vs Claudio | 13–33 | 28.26% |
| Pirow vs Jack-8 | 20–23 | 46.51% |
| Pirow vs Armor King | 17–25 | 40.48% |
| Pirow vs Lidia | 23–18 | 56.10% |
| Pirow vs Leo | 24–16 | 60.00% |
| Pirow vs Kuma | 13–19 | 40.62% |
| Pirow vs Shaheen | 13–16 | 44.83% |
| Pirow vs Anna | 14–15 | 48.28% |
| Pirow vs Zafina | 13–14 | 48.15% |
| Pirow vs Raven | 13–10 | 56.52% |
| Pirow vs Miary Zo | 5–13 | 27.78% |
| Pirow vs Panda | 4–9 | 30.77% |
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.