| Pirow vs Kazuya | 144–183 | 44.04% |
| Pirow vs Jin | 128–177 | 41.97% |
| Pirow vs King | 135–145 | 48.21% |
| Pirow vs Bryan | 103–127 | 44.78% |
| Pirow vs Reina | 85–112 | 43.15% |
| Pirow vs Hwoarang | 81–105 | 43.55% |
| Pirow vs Law | 82–97 | 45.81% |
| Pirow vs Steve | 76–85 | 47.20% |
| Pirow vs Yoshimitsu | 68–82 | 45.33% |
| Pirow vs Dragunov | 65–84 | 43.62% |
| Pirow vs Heihachi | 63–80 | 44.06% |
| Pirow vs Paul | 69–70 | 49.64% |
| Pirow vs Lili | 51–63 | 44.74% |
| Pirow vs Clive | 41–47 | 46.59% |
| Pirow vs Asuka | 47–38 | 55.29% |
| Pirow vs Eddy | 34–50 | 40.48% |
| Pirow vs Azucena | 43–39 | 52.44% |
| Pirow vs Alisa | 30–44 | 40.54% |
| Pirow vs Devil Jin | 21–52 | 28.77% |
| Pirow vs Jun | 39–33 | 54.17% |
| Pirow vs Lars | 25–45 | 35.71% |
| Pirow vs Nina | 32–38 | 45.71% |
| Pirow vs Lee | 32–35 | 47.76% |
| Pirow vs Victor | 33–32 | 50.77% |
| Pirow vs Fahkumram | 17–41 | 29.31% |
| Pirow vs Leroy | 24–29 | 45.28% |
| Pirow vs Feng | 21–31 | 40.38% |
| Pirow vs Xiaoyu | 23–28 | 45.10% |
| Pirow vs Claudio | 13–33 | 28.26% |
| Pirow vs Jack-8 | 20–22 | 47.62% |
| Pirow vs Leo | 24–16 | 60.00% |
| Pirow vs Lidia | 21–18 | 53.85% |
| Pirow vs Armor King | 13–20 | 39.39% |
| Pirow vs Shaheen | 13–16 | 44.83% |
| Pirow vs Kuma | 11–16 | 40.74% |
| Pirow vs Zafina | 13–14 | 48.15% |
| Pirow vs Raven | 13–10 | 56.52% |
| Pirow vs Anna | 11–9 | 55.00% |
| Pirow vs Panda | 4–9 | 30.77% |
| Pirow vs Miary Zo | 2–8 | 20.00% |
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.