Odlin, a former Oceania and New Zealand elite champion, won the senior men's time trial title on the opening day of the championships, held in idyllic conditions in Central Otago.
The 2015 national time trial champion, Jaime Nielsen, claimed the senior women's time trial honours
in a battle against her fellow high-performance track squad members, competing in their preparations for the Rio Olympics.
The men's course was a shorter 25km loop with a testing climb in the Springvale area near Alexandra Airport.
Odlin clocked 34min 04sec to dominate the senior men's field, winning by more than a minute from Wellington's Andrew Hagan and highly-rated Timaru rider Tim Rush.
The track squad has headed south for some hard road racing and training before returning to train in Cambridge before the naming of the national squad to head to the United States and Europe.
Nielsen (Te Awamutu Sports), the 2014 and 2015 elite national time trial champion, proved too strong yesterday in taking the honours in a highly respectable 37min 23sec ahead of training mate Georgia Williams (North Harbour).
Today's action moves to the road course, around a 20km lap in a similar area to yesterday's time trial.
