| Neptune660 vs Kazuya | 99–98 | 50.25% |
| Neptune660 vs King | 85–104–1 | 44.97% |
| Neptune660 vs Jin | 78–79 | 49.68% |
| Neptune660 vs Bryan | 67–79 | 45.89% |
| Neptune660 vs Hwoarang | 69–69 | 50.00% |
| Neptune660 vs Law | 73–64 | 53.28% |
| Neptune660 vs Eddy | 66–57 | 53.66% |
| Neptune660 vs Yoshimitsu | 44–70 | 38.60% |
| Neptune660 vs Reina | 58–54 | 51.79% |
| Neptune660 vs Paul | 40–61 | 39.60% |
| Neptune660 vs Jun | 47–49 | 48.96% |
| Neptune660 vs Dragunov | 38–39 | 49.35% |
| Neptune660 vs Devil Jin | 31–42 | 42.47% |
| Neptune660 vs Lars | 29–44 | 39.73% |
| Neptune660 vs Lee | 32–40 | 44.44% |
| Neptune660 vs Steve | 40–31 | 56.34% |
| Neptune660 vs Lili | 37–32 | 53.62% |
| Neptune660 vs Feng | 31–36 | 46.27% |
| Neptune660 vs Victor | 30–36 | 45.45% |
| Neptune660 vs Azucena | 26–33 | 44.07% |
| Neptune660 vs Asuka | 26–28 | 48.15% |
| Neptune660 vs Nina | 26–27 | 49.06% |
| Neptune660 vs Jack-8 | 29–22 | 56.86% |
| Neptune660 vs Alisa | 24–26 | 48.00% |
| Neptune660 vs Heihachi | 28–12 | 70.00% |
| Neptune660 vs Leo | 22–17 | 56.41% |
| Neptune660 vs Leroy | 18–17 | 51.43% |
| Neptune660 vs Xiaoyu | 21–12 | 63.64% |
| Neptune660 vs Raven | 16–16 | 50.00% |
| Neptune660 vs Zafina | 15–14 | 51.72% |
| Neptune660 vs Armor King | 13–14 | 48.15% |
| Neptune660 vs Kuma | 16–9 | 64.00% |
| Neptune660 vs Claudio | 11–13 | 45.83% |
| Neptune660 vs Anna | 8–14 | 36.36% |
| Neptune660 vs Fahkumram | 11–7 | 61.11% |
| Neptune660 vs Shaheen | 8–5 | 61.54% |
| Neptune660 vs Panda | 5–6 | 45.45% |
| Neptune660 vs Lidia | 7–1 | 87.50% |
| Neptune660 vs Miary Zo | 2–3 | 40.00% |
| Neptune660 vs Clive | 2–2 | 50.00% |
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.