| ifailOhSoHard vs King | 108–156 | 40.91% |
| ifailOhSoHard vs Kazuya | 105–125 | 45.65% |
| ifailOhSoHard vs Bryan | 89–108 | 45.18% |
| ifailOhSoHard vs Reina | 88–104 | 45.83% |
| ifailOhSoHard vs Jin | 81–110 | 42.41% |
| ifailOhSoHard vs Hwoarang | 71–99 | 41.76% |
| ifailOhSoHard vs Steve | 70–93 | 42.94% |
| ifailOhSoHard vs Lidia | 71–78 | 47.65% |
| ifailOhSoHard vs Lili | 60–74 | 44.78% |
| ifailOhSoHard vs Dragunov | 58–73 | 44.27% |
| ifailOhSoHard vs Law | 59–65 | 47.58% |
| ifailOhSoHard vs Paul | 41–65 | 38.68% |
| ifailOhSoHard vs Azucena | 54–50 | 51.92% |
| ifailOhSoHard vs Heihachi | 50–50 | 50.00% |
| ifailOhSoHard vs Lars | 45–54 | 45.45% |
| ifailOhSoHard vs Jun | 37–58 | 38.95% |
| ifailOhSoHard vs Yoshimitsu | 44–50 | 46.81% |
| ifailOhSoHard vs Lee | 34–57 | 37.36% |
| ifailOhSoHard vs Xiaoyu | 39–49 | 44.32% |
| ifailOhSoHard vs Eddy | 38–47 | 44.71% |
| ifailOhSoHard vs Asuka | 30–53 | 36.14% |
| ifailOhSoHard vs Feng | 30–51 | 37.04% |
| ifailOhSoHard vs Nina | 21–43 | 32.81% |
| ifailOhSoHard vs Victor | 27–35 | 43.55% |
| ifailOhSoHard vs Alisa | 22–35 | 38.60% |
| ifailOhSoHard vs Leroy | 28–29 | 49.12% |
| ifailOhSoHard vs Leo | 27–25 | 51.92% |
| ifailOhSoHard vs Raven | 22–26 | 45.83% |
| ifailOhSoHard vs Jack-8 | 22–25 | 46.81% |
| ifailOhSoHard vs Clive | 21–23 | 47.73% |
| ifailOhSoHard vs Zafina | 15–26 | 36.59% |
| ifailOhSoHard vs Devil Jin | 14–26 | 35.00% |
| ifailOhSoHard vs Claudio | 19–19 | 50.00% |
| ifailOhSoHard vs Fahkumram | 17–15 | 53.12% |
| ifailOhSoHard vs Shaheen | 15–10 | 60.00% |
| ifailOhSoHard vs Panda | 9–11 | 45.00% |
| ifailOhSoHard vs Anna | 5–12 | 29.41% |
| ifailOhSoHard vs Kuma | 5–11 | 31.25% |
| ifailOhSoHard vs Miary Zo | 2–2 | 50.00% |
| ifailOhSoHard vs Armor King | 0–2 | 0.00% |
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.