| Prottardo vs Heihachi | 171–165 | 50.89% |
| Prottardo vs Bryan | 73–150 | 32.74% |
| Prottardo vs Kazuya | 96–120 | 44.44% |
| Prottardo vs Reina | 71–105 | 40.34% |
| Prottardo vs King | 84–84 | 50.00% |
| Prottardo vs Jin | 74–84 | 46.84% |
| Prottardo vs Steve | 75–72 | 51.02% |
| Prottardo vs Dragunov | 68–57 | 54.40% |
| Prottardo vs Hwoarang | 60–62 | 49.18% |
| Prottardo vs Paul | 44–53 | 45.36% |
| Prottardo vs Law | 42–46 | 47.73% |
| Prottardo vs Yoshimitsu | 41–46 | 47.13% |
| Prottardo vs Lili | 38–49 | 43.68% |
| Prottardo vs Victor | 32–55 | 36.78% |
| Prottardo vs Lee | 33–45 | 42.31% |
| Prottardo vs Devil Jin | 24–50 | 32.43% |
| Prottardo vs Leo | 27–37 | 42.19% |
| Prottardo vs Armor King | 27–34 | 44.26% |
| Prottardo vs Azucena | 22–35 | 38.60% |
| Prottardo vs Lars | 19–36 | 34.55% |
| Prottardo vs Jack-8 | 23–25 | 47.92% |
| Prottardo vs Eddy | 21–25 | 45.65% |
| Prottardo vs Jun | 13–30 | 30.23% |
| Prottardo vs Nina | 19–21 | 47.50% |
| Prottardo vs Lidia | 13–27 | 32.50% |
| Prottardo vs Xiaoyu | 15–20 | 42.86% |
| Prottardo vs Feng | 14–20 | 41.18% |
| Prottardo vs Raven | 13–21 | 38.24% |
| Prottardo vs Asuka | 16–16 | 50.00% |
| Prottardo vs Shaheen | 5–17 | 22.73% |
| Prottardo vs Kuma | 8–14 | 36.36% |
| Prottardo vs Clive | 6–16 | 27.27% |
| Prottardo vs Leroy | 10–10 | 50.00% |
| Prottardo vs Alisa | 11–8 | 57.89% |
| Prottardo vs Claudio | 11–7 | 61.11% |
| Prottardo vs Zafina | 5–9 | 35.71% |
| Prottardo vs Fahkumram | 7–3 | 70.00% |
| Prottardo vs Panda | 3–4 | 42.86% |
| Prottardo vs Miary Zo | 1–6 | 14.29% |
| Prottardo vs Anna | 2–1 | 66.67% |
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.