North East Valley 251 for seven beat Taieri 74 by 177 runs
On a day when three teams were dismissed for less than 75, Miles' innings of 69 at Brooklands shone like a beacon among the scorecards.
He scored his runs at a reasonable clip - off 86 balls - hit six boundaries and combined in a partnership of 84 for the fourth wicket with Jesse Simpson, who played a valuable supporting role with 48 off 63 balls (three fours and one six).
Michael Rae chipped in with a breezy 38 at the top of the order and North East Valley finished its 50 overs with a highly competitive total.
Taieri's bowlers took some stick but Shelford Meads did well to claim the wickets of Miles and Simpson, and finished with four for 48.
Taieri's mini-resurgence in recent weeks counted for little as it collapsed inside 24 overs. Extras was top scorer with 18, as Valley veteran Simon Murley (five for 31) led the onslaught.
Kaikorai 102 beat Otago Boys' High School 66 by 36 runs
Bishopscourt hosted a less than memorable clash as neither side produced an individual innings higher than 20.
There were not even any four-wicket or five-wicket bags to get excited about.
Matt Hunter whacked a run-a-ball 19 for Kaikorai but eight of his team-mates fell for single figures, leaving the home side to scrape past 100 before being dismissed in the 30th over.
Declan Sua and Dave Simpson (on loan from a University-Grange team put on ice for the summer) each claimed three wickets for Otago Boys'.
The schoolboys might have felt reasonably confident of claiming another senior scalp but their hopes were quickly dashed.
There was some grafting - Jarryd Taig survived 48 balls for his six, and Max Chu soaked up 31 for his eight - but no Otago Boys' batsman reached double figures, and only generous extras (22) enabled the school team to pass 50.
Hamish Robertson paced the Kaikorai attack with three for 10 and Ricky Black, Jackson Latham and Josh Finnie (against his old schoolmates) each claimed two wickets.
Carisbrook-Dunedin 57 lost to Green Island 58 for four by six wickets
There was more carnage at Sunnyvale, as even a side containing two members of the Volts squad struggled to get the scoreboard moving.
Michael Bracewell (another University-Grange player given a temporary home) and Brad Rodden were available for Carisbrook-Dunedin but they were powerless to stop a batting collapse.
Like every other batsman in the top six, Bracewell and Rodden were dismissed for single figures, leaving Rhys Phillips (18) to play a cameo role as a pitiful innings closed in the 27th over.
Bradley Scott (four for 11) and Mark Joyce (four for 19) provided a lethal one-two punch for Green Island.
It would be stretching the truth to say Green Island cruised to victory inside 14 overs - it did lose four wickets - but all it required was for three batsman to reach double figures.
