| Oldmanonsteroid vs Steve | 174–131 | 57.05% |
| Oldmanonsteroid vs Hwoarang | 141–117 | 54.65% |
| Oldmanonsteroid vs King | 119–115 | 50.85% |
| Oldmanonsteroid vs Jin | 126–108 | 53.85% |
| Oldmanonsteroid vs Kazuya | 129–103 | 55.60% |
| Oldmanonsteroid vs Law | 122–105 | 53.74% |
| Oldmanonsteroid vs Lars | 108–91 | 54.27% |
| Oldmanonsteroid vs Bryan | 96–88 | 52.17% |
| Oldmanonsteroid vs Lili | 83–89 | 48.26% |
| Oldmanonsteroid vs Yoshimitsu | 86–79 | 52.12% |
| Oldmanonsteroid vs Paul | 70–92 | 43.21% |
| Oldmanonsteroid vs Lee | 77–63 | 55.00% |
| Oldmanonsteroid vs Azucena | 75–64 | 53.96% |
| Oldmanonsteroid vs Devil Jin | 76–58 | 56.72% |
| Oldmanonsteroid vs Heihachi | 62–71 | 46.62% |
| Oldmanonsteroid vs Dragunov | 70–61 | 53.44% |
| Oldmanonsteroid vs Feng | 75–55 | 57.69% |
| Oldmanonsteroid vs Jun | 67–56 | 54.47% |
| Oldmanonsteroid vs Reina | 61–57 | 51.69% |
| Oldmanonsteroid vs Claudio | 52–60 | 46.43% |
| Oldmanonsteroid vs Leroy | 57–55 | 50.89% |
| Oldmanonsteroid vs Alisa | 71–40 | 63.96% |
| Oldmanonsteroid vs Victor | 56–55 | 50.45% |
| Oldmanonsteroid vs Nina | 60–48 | 55.56% |
| Oldmanonsteroid vs Lidia | 60–48 | 55.56% |
| Oldmanonsteroid vs Eddy | 59–47 | 55.66% |
| Oldmanonsteroid vs Leo | 48–55 | 46.60% |
| Oldmanonsteroid vs Raven | 42–61 | 40.78% |
| Oldmanonsteroid vs Asuka | 56–44 | 56.00% |
| Oldmanonsteroid vs Anna | 60–38 | 61.22% |
| Oldmanonsteroid vs Xiaoyu | 47–50 | 48.45% |
| Oldmanonsteroid vs Jack-8 | 32–51 | 38.55% |
| Oldmanonsteroid vs Shaheen | 36–43 | 45.57% |
| Oldmanonsteroid vs Clive | 41–32 | 56.16% |
| Oldmanonsteroid vs Zafina | 34–36 | 48.57% |
| Oldmanonsteroid vs Armor King | 27–27 | 50.00% |
| Oldmanonsteroid vs Kuma | 24–28 | 46.15% |
| Oldmanonsteroid vs Miary Zo | 20–22 | 47.62% |
| Oldmanonsteroid vs Fahkumram | 20–13 | 60.61% |
| Oldmanonsteroid vs Panda | 12–10 | 54.55% |
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.