| 300mm.railgun vs Kazuya | 42–61 | 40.78% |
| 300mm.railgun vs Law | 34–32 | 51.52% |
| 300mm.railgun vs King | 39–25 | 60.94% |
| 300mm.railgun vs Jin | 22–37 | 37.29% |
| 300mm.railgun vs Bryan | 22–36 | 37.93% |
| 300mm.railgun vs Steve | 20–35 | 36.36% |
| 300mm.railgun vs Reina | 26–27 | 49.06% |
| 300mm.railgun vs Clive | 19–32 | 37.25% |
| 300mm.railgun vs Heihachi | 18–32 | 36.00% |
| 300mm.railgun vs Hwoarang | 15–31 | 32.61% |
| 300mm.railgun vs Yoshimitsu | 18–27 | 40.00% |
| 300mm.railgun vs Asuka | 14–22 | 38.89% |
| 300mm.railgun vs Jun | 17–19 | 47.22% |
| 300mm.railgun vs Victor | 22–12 | 64.71% |
| 300mm.railgun vs Dragunov | 13–19 | 40.62% |
| 300mm.railgun vs Feng | 11–19 | 36.67% |
| 300mm.railgun vs Armor King | 14–16 | 46.67% |
| 300mm.railgun vs Paul | 12–16 | 42.86% |
| 300mm.railgun vs Xiaoyu | 9–17 | 34.62% |
| 300mm.railgun vs Lidia | 16–10 | 61.54% |
| 300mm.railgun vs Alisa | 13–11 | 54.17% |
| 300mm.railgun vs Nina | 15–8 | 65.22% |
| 300mm.railgun vs Lars | 9–13 | 40.91% |
| 300mm.railgun vs Zafina | 11–7 | 61.11% |
| 300mm.railgun vs Lili | 7–10 | 41.18% |
| 300mm.railgun vs Eddy | 6–9 | 40.00% |
| 300mm.railgun vs Lee | 9–5 | 64.29% |
| 300mm.railgun vs Anna | 2–12 | 14.29% |
| 300mm.railgun vs Devil Jin | 7–6 | 53.85% |
| 300mm.railgun vs Leroy | 5–8 | 38.46% |
| 300mm.railgun vs Claudio | 4–7 | 36.36% |
| 300mm.railgun vs Jack-8 | 3–6 | 33.33% |
| 300mm.railgun vs Azucena | 6–3 | 66.67% |
| 300mm.railgun vs Fahkumram | 6–2 | 75.00% |
| 300mm.railgun vs Leo | 4–3 | 57.14% |
| 300mm.railgun vs Kuma | 4–3 | 57.14% |
| 300mm.railgun vs Shaheen | 0–5 | 0.00% |
| 300mm.railgun vs Raven | 2–3 | 40.00% |
| 300mm.railgun vs Panda | 1–0 | 100.00% |
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.