Slapdash Grand Prix
The Slapdash Grand Prix is one of the gamemodes in the Umamusume: Pretty Derby - Party Dash game. This mode is a gauntlet of all 4 Main Events, Hurtling Hurdles, Blazing Baskets, Dodgeball Demolition, and Gourmet Gauntlet

Story
The Slapdash Grand Prix was created by Yayoi Akikawa as a part of the Spring Fan Fest, her and Tazuna Hayakawa planned four events for it: Hurtling Hurdles, Blazing Baskets, Dodgeball Demolition, and Gourmet Gauntlet. These events are played in the game for four teams: Team Cosmos, Team Freesia, Team Rose, and Team Lily.
It is said in chapter 7 of Team Cosmos's story that the prize for winning the event is one year worth of carrots from Akikawa's personal garden.
Gameplay
In Slapdash Grand Prix, you are free to chose any team you want, or create a custom team with various Umamusume. In story mode, your team will automatically set to the team that you are using during story. You will be participating in all 4 events in succession in order:
Blazing Baskets and Dodgeball Demolition can be shuffled at the start of the Grand Prix. Gourmet Gauntlet and Hurtling Hurdles are set in proper order every gameplay. At the end of each event, Points are tallied to team's total depending on team's final placing on each event. The team with the most points overall wins.
| Placing | Points gained |
|---|---|
| 1st | 400 |
| 2nd | 300 |
| 3rd | 200 |
| 4th | 100 |
At the end of the Grand Prix, there will be also individual awards that grants additional points to the team's total depending on individual performances. These awards are announced by Misato Akasaka.
| Award | Points gained |
|---|---|
| Excellent Effort | 20 |
| Sick Skills | 20 |
| Spam Shooter | 60 |
| Knockout | 60 |
| Food Fighter | 60 |
| Most Valuable Player | 100 |