It takes a special driver to master the twin challenges of the long-running (this year's was the 49th) spring meeting, with racing conducted round the 687 metre Chemz Raceway kart track at Roys Hill on the outskirts of Hastings in a clockwise direction on Saturday then anti-clockwise direction on Sunday.
The meeting also has its own distinctive race format with each class getting five heats on Saturday and four on Sunday, the first four on Saturday and first three on Sunday using predetermined grids.
O'Meara-Hunt, 15, from Wellington was the driver who grabbed the challenge by the scruff of the neck and gave it the best shake this year, winning four of the five Junior Rotax heats on Saturday and three of the four on Sunday to completely dominate the class. Callum Hedge (who with Palmerston North's Tom Greig was one of the only other heat winners) was second, fellow Aucklander Joshua Parkinson, third.
Greig also won the standalone Junior Rotax Grand Prix race held on Sunday from Hedge, Parkinson, Adam Bell, O'Meara-Hunt and second-genertion racers Zac Stichbury and Ronan Murphy.
In other classes, also scoring multiple heat race wins on both days were the winners of the two Senior Rotax Max weight divisions.
Palmerston North ace Jacob Cranston won five of his nine class races to take top honours in 125cc Rotax Max Light from Ashleigh Stewart from Wellington, with Corey Green from the Bay of Plenty third, while Neil Butts came out on top in 125cc Rotax Max Heavy after a weekend-long battle with Peter Richardson.
Jackson Rooney, also from Palmerston North, claimed a class double in the Vortex Mini ROK class, taking overall victory over Rotorua driver Riley Spargo and Louis Redshaw from Palmerston North, and winning the class Grand Prix from Mitchell Frazer (Auckland) and Spargo.
The other class/GP double went to reigning Cadet ROK class National Schools' champion Logan Manson, the youngster from Levin edging out local Thomas Bewley to class honours by just one point but backing that win up with victory in the Cadet ROK Grand Prix race by a four-and-a-half second margin over Bewley with Pukekohe's Emerson Vincent third a further second back.
Finally, it was also close in the Open class with a single heat win, three seconds and four thirds (just) enough for Hamilton's Rhys Tinney to claim round honours by a single point from Taylor Harte from the Bay of Plenty (who won four heats) and Mathew Butchart from Nelson (who won one of the others).
It was just as close in the Open class Grand Prix race with Tinney getting the win by just 0.114 of a second from Brendon Jury from New Plymouth with Taylor Harte third, and Ashleigh Stewart's sister Madeline a similar gap back in fourth.
49th Blossom Sprint (Kart) meeting KartSport Hawke's Bay Chemz Raceway Roys Hill Hastings Hawke's Bay Sat-Sun Sept 03-04 2016
1. Rhys Tinney; 2. Taylor Harte; 3. Mathew Butchart; 4. Brendon Jury; 5. Johnathan Pearson; 6. 82. Madeline Stewart
125cc Rotax Max Light
1. Jacob Cranston; 2. Ashleigh Stewart; 3. Corey Green; 4. Jaden Hardy; 5. James Higgins; 6. Ethan Hourigan
125cc Rotax Max Heavy
1. Neil Butts; 2. Peter Richardson
1. Rianna O'Meara-Hunt; 2. Callum Hedge; 3. Joshua Parkinson; 4. Sam Wright; 5. Frank May; 6. Tom Greig
Vortex Mini ROK
1. Jackson Rooney; 2. Riley Spargo; 3. Louis Redshaw; 4. Mitchell Frazer; 5. Breanna Morris; 6. Liam Sceats
1. Logan Manson; 2. Thomas Bewley; 3. Ryan Bell; 4. Kaden Probst; 5. Emerson Vincent; 6. Mason Potter
Senior Open GP
1. 3. Rhys Tinney; 2. 49. Brendon Jury; 3. 44. Taylor Harte; 4. 82. Maddy Stewart; 5. 33. Mathew Butchart; 6. 94. Daniel Bugler
Junior Max GP
1. Tom Greig; 2. Callum Hedge; 3. Joshua Parkinson; 4. Adam Bell; 5. Rianna O'Meara-Hunt; 6. Zac Stichbury; 7. Ronan Murphy
Vortex Mini ROK GP
1. Jackson Rooney; 2. Mitchell Frazer; 3. Riley Spargo; 4. Liam Sceats; 5. Dylan Grant; 6. Stuart Baker.
Cadet ROK GP
1. Logan Manson; 2. Thomas Bewley; 3. Emerson Vincent; 4. Mason Potter; 5. Ryan Bell ; 6. Kiahn Burt