| iRock vs Jin | 112–126 | 47.06% |
| iRock vs Kazuya | 114–123 | 48.10% |
| iRock vs King | 94–118 | 44.34% |
| iRock vs Bryan | 92–90 | 50.55% |
| iRock vs Dragunov | 66–96 | 40.74% |
| iRock vs Law | 66–80 | 45.21% |
| iRock vs Hwoarang | 66–78 | 45.83% |
| iRock vs Steve | 77–67 | 53.47% |
| iRock vs Reina | 71–47 | 60.17% |
| iRock vs Heihachi | 40–70 | 36.36% |
| iRock vs Yoshimitsu | 62–47 | 56.88% |
| iRock vs Paul | 57–48 | 54.29% |
| iRock vs Lili | 46–44 | 51.11% |
| iRock vs Devil Jin | 28–55 | 33.73% |
| iRock vs Eddy | 39–35 | 52.70% |
| iRock vs Lee | 41–31 | 56.94% |
| iRock vs Lars | 31–35 | 46.97% |
| iRock vs Alisa | 31–34 | 47.69% |
| iRock vs Jun | 31–34 | 47.69% |
| iRock vs Azucena | 28–32 | 46.67% |
| iRock vs Nina | 32–26 | 55.17% |
| iRock vs Lidia | 25–30 | 45.45% |
| iRock vs Feng | 22–32 | 40.74% |
| iRock vs Xiaoyu | 22–31 | 41.51% |
| iRock vs Victor | 24–26 | 48.00% |
| iRock vs Asuka | 22–26 | 45.83% |
| iRock vs Claudio | 20–28 | 41.67% |
| iRock vs Jack-8 | 16–20 | 44.44% |
| iRock vs Leroy | 20–16 | 55.56% |
| iRock vs Anna | 14–19 | 42.42% |
| iRock vs Kuma | 8–23 | 25.81% |
| iRock vs Clive | 14–15 | 48.28% |
| iRock vs Raven | 9–19 | 32.14% |
| iRock vs Shaheen | 12–15 | 44.44% |
| iRock vs Leo | 11–14 | 44.00% |
| iRock vs Armor King | 11–10 | 52.38% |
| iRock vs Zafina | 4–6 | 40.00% |
| iRock vs Panda | 3–5 | 37.50% |
| iRock vs Fahkumram | 5–3 | 62.50% |
| iRock vs Miary Zo | 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.