| Marshmello vs Kazuya | 111–99 | 52.86% |
| Marshmello vs Jin | 98–77 | 56.00% |
| Marshmello vs Heihachi | 89–78 | 53.29% |
| Marshmello vs Bryan | 88–76 | 53.66% |
| Marshmello vs King | 71–67 | 51.45% |
| Marshmello vs Reina | 85–53 | 61.59% |
| Marshmello vs Steve | 47–45 | 51.09% |
| Marshmello vs Paul | 44–44 | 50.00% |
| Marshmello vs Lili | 45–43 | 51.14% |
| Marshmello vs Law | 41–46 | 47.13% |
| Marshmello vs Hwoarang | 43–44 | 49.43% |
| Marshmello vs Devil Jin | 46–37 | 55.42% |
| Marshmello vs Dragunov | 35–37 | 48.61% |
| Marshmello vs Yoshimitsu | 36–35 | 50.70% |
| Marshmello vs Fahkumram | 33–34 | 49.25% |
| Marshmello vs Jun | 43–20 | 68.25% |
| Marshmello vs Azucena | 36–27 | 57.14% |
| Marshmello vs Armor King | 32–27 | 54.24% |
| Marshmello vs Victor | 27–27 | 50.00% |
| Marshmello vs Asuka | 30–21 | 58.82% |
| Marshmello vs Lars | 19–28 | 40.43% |
| Marshmello vs Eddy | 22–24 | 47.83% |
| Marshmello vs Anna | 19–27 | 41.30% |
| Marshmello vs Nina | 24–19 | 55.81% |
| Marshmello vs Feng | 17–25 | 40.48% |
| Marshmello vs Lee | 19–23 | 45.24% |
| Marshmello vs Leo | 14–25 | 35.90% |
| Marshmello vs Jack-8 | 20–18 | 52.63% |
| Marshmello vs Kuma | 22–15 | 59.46% |
| Marshmello vs Alisa | 13–20 | 39.39% |
| Marshmello vs Lidia | 18–14 | 56.25% |
| Marshmello vs Clive | 13–17 | 43.33% |
| Marshmello vs Xiaoyu | 13–16 | 44.83% |
| Marshmello vs Claudio | 14–15 | 48.28% |
| Marshmello vs Miary Zo | 10–19 | 34.48% |
| Marshmello vs Shaheen | 9–12 | 42.86% |
| Marshmello vs Leroy | 7–11 | 38.89% |
| Marshmello vs Zafina | 5–12 | 29.41% |
| Marshmello vs Raven | 7–7 | 50.00% |
| Marshmello vs Panda | 1–1 | 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.