Kiwi golfer Steven Alker has scored an amazing a hole-in-one with just his first shot of the day in the final round of the Sanderson Farms Championship PGA Tour event in Mississippi.

The 45-year-old, Waikato-based player hit the par-3 10th hole with a perfect shot that travelled the whole 194m, straight into the cup.

Even the tournament website said the 10th hole was "more challenging than it appears. The hole plays slightly downhill, but most misses are short, not long."

Alker shot a final round one-under par 71 after opening the tournament with his best round, 69.

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He was in an eight-way tie for 36th place with the leaders still out on the course.

The Kiwi also had a hole-in-one at Pebble Beach in February 2015.