A warp-capable Delta Quadrant species who, after making peace with three neighbouring peoples in 2377, organised the Antarian Trans-stellar Rally in which Tom Paris flew the Delta Flyer.
The Antarians are a humanoid species who appear in the Voyager episode Drive. Their region of space was long fought over by four species, the Antarians among them, until a treaty finally brought the conflict to an end.
To celebrate the peace, the former enemies stage a sub-warp race over a course of about two billion kilometres, with the Antarian Ambassador O'Zaal presiding. Tom Paris persuades Janeway to enter the rebuilt Delta Flyer, and Voyager plays host to the opening ceremonies.
The peace has enemies. One pilot, Irina, has rigged her ship to deliver an explosive to the finishing line and destroy the alliance at its moment of triumph. Paris and Torres, who are flying together, uncover the plot and eject the Flyer's damaged warp core in safety, and then become engaged.