Hambledon under-13s humbled table-topping Havant in the East Hants Indoor League.
The young Dons inflicted a four-wicket defeat on the leaders with a great team performance in the final game of the season.
The triumph meant Havant were left to sweat on the result of Fareham's clash with Sarisbury to see who would be crowned league champions.
Batting first Havant got off to a slow start due to tight bowling from Finlay Rockett, Jack Thistlethwayte and Will Hardman.
And matters got worse for the favourites when they lost their first wicket to a superb run out by Harry Hoolahan.
Hardman then claimed the important scalp of Bobby Dyer before Tom Toogood bagged two wickets and Rockett had another caught by keeper Sam Phillips.
But Emily Windsor rescued the Havant innings and showed the boys how to do it with a fine 40 not out in their total of 95.
The Hambledon innings also struggled for momentum early on but the Dons made the most of their scoring opportunities to keep up with the required rate.
And as the pressure built towards the end of the innings, the Havant bowling deteriorated, giving away 49 extras in total.
Hambledon reached the required 96 in 11 overs, with Toogood retired on 22 and Rockett scoring 17.