Hall, 28, has been training with his coach Matt Dallow in California and it will be his first experience of a major international meet. The eight-time national discus champion, has been to four Oceania Championships, winning two golds and two silvers.
For six of the athletes it will be their first senior world championships.
The team is dominated by throwers, making up over 40 percent of the team and the highest representation on the team is from the Hamilton City Hawks club with three athletes.
New Zealand team for the worlds, running from August 4-13:
Camille Buscomb (Hamilton City Hawks, 5000 and 10,000m), Jacko Gill (Takapuna, shot put), Marshall Hall (Invercargill, discus), Ben Langton Burnell (Palmerston North, javelin), Eliza McCartney (North Harbour Bays, pole vault), Joseph Millar (Tauranga Ramblers, 200m), Angie Petty (University of Canterbury, 800m, Julia Ratcliffe (Hamilton Hawks, hammer), Quentin Rew (Wellington Harrier Athletic, 50km race walk), Zane Robertson (Hamilton Hawks, 10,000m), Tom Walsh (South Canterbury, shot put), Nick Willis (Lower Hutt, 1500m).