| Waterball vs Kazuya | 86–79 | 52.12% |
| Waterball vs Jin | 78–84 | 48.15% |
| Waterball vs Bryan | 63–86 | 42.28% |
| Waterball vs Steve | 88–54 | 61.97% |
| Waterball vs King | 49–49 | 50.00% |
| Waterball vs Reina | 51–47 | 52.04% |
| Waterball vs Yoshimitsu | 44–50 | 46.81% |
| Waterball vs Dragunov | 48–43 | 52.75% |
| Waterball vs Hwoarang | 60–25 | 70.59% |
| Waterball vs Lili | 36–45 | 44.44% |
| Waterball vs Law | 21–57 | 26.92% |
| Waterball vs Victor | 32–42 | 43.24% |
| Waterball vs Clive | 31–41 | 43.06% |
| Waterball vs Armor King | 33–29 | 53.23% |
| Waterball vs Jun | 32–23 | 58.18% |
| Waterball vs Lidia | 20–32 | 38.46% |
| Waterball vs Devil Jin | 23–27 | 46.00% |
| Waterball vs Heihachi | 35–14 | 71.43% |
| Waterball vs Lars | 17–31 | 35.42% |
| Waterball vs Eddy | 21–23 | 47.73% |
| Waterball vs Asuka | 20–22 | 47.62% |
| Waterball vs Azucena | 15–23 | 39.47% |
| Waterball vs Feng | 15–21 | 41.67% |
| Waterball vs Nina | 18–15 | 54.55% |
| Waterball vs Lee | 14–19 | 42.42% |
| Waterball vs Claudio | 12–20 | 37.50% |
| Waterball vs Paul | 15–13 | 53.57% |
| Waterball vs Xiaoyu | 15–10 | 60.00% |
| Waterball vs Alisa | 7–17 | 29.17% |
| Waterball vs Leroy | 13–9 | 59.09% |
| Waterball vs Jack-8 | 12–8 | 60.00% |
| Waterball vs Anna | 11–9 | 55.00% |
| Waterball vs Miary Zo | 8–12 | 40.00% |
| Waterball vs Leo | 8–11 | 42.11% |
| Waterball vs Kuma | 12–7 | 63.16% |
| Waterball vs Shaheen | 5–13 | 27.78% |
| Waterball vs Raven | 10–6 | 62.50% |
| Waterball vs Zafina | 5–8 | 38.46% |
| Waterball vs Fahkumram | 7–6 | 53.85% |
| Waterball vs Panda | 4–5 | 44.44% |
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.