Conditions have considerably improved for the start of New Zealand's group one Davis Cup tennis tie against Korea in Seoul today.

The Kiwi team was battling temperatures as low as minus-seven and a thick blanket of snow earlier in the week which affected practice.

However, with the tie starting today Kiwi captain Alistair Hunt says it's warmed up a lot.

He says when you've been playing in sub zero temperatures, it seems like they're in the middle of summer at 10 degrees.

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Experienced Kiwi Rubin Statham will kick off the singles against surprise Korean selection - teenager Seong-Chang Hong, who is their number four.

Hunt says Hong has a lot of credibility.

He says Hong has won three futures tournaments in a row this year so will be challenging for Statham.

The second singles will feature Michael Venus against world number 63 Hyeon Chung.