Northamptonshire 324 for 6 (Willey 167, Keogh 61) beat Warwickshire 199 (Azharullah 4-20)
David Willey carried on where he left off in the Friends Life t20 final by pummelling his maiden senior century for Northamptonshire in their crushing 125-run Yorkshire Bank 40 win over Warwickshire at Edgbaston but it wasn't quite enough to earn a semi-final, missing out the final berth by net run-rate to Glamorgan
Willey made his maiden Twenty20 half-century and took a hat-trick in Northamptonshire's triumph over Surrey at Edgbaston nine days ago and enjoyed himself on his return to the ground with 10 sixes in his 101-ball 167.
The left-hander, fresh from playing for England Lions against Bangladesh A, reached three figures for the first time from 62 balls and required only 22 deliveries to accelerate from 50 to his century.
Warwickshire's decision to rest seamers Keith Barker and Rikki Clarke ahead of Wednesday's County Championship match against Sussex meant offspinner Jeetan Patel was the only senior specialist bowler in a severely-depleted attack and Northamptonshire cashed in by piling up their highest 40 overs score of 324 for 6.
Rookie seamers Tom Milnes and Recordo Gordon returned combined figures of 15-0-149-3 and the four part-time bowlers, including veteran Darren Maddy in his farewell one-day appearance before retirement, also came in for some heavy punishment from Willey.
Willey took four of his sixes in two overs from Maddy and offspinner Ateeq Javid and he was eyeing Wayne Larkins' Northamptonshire record 40 overs score of 172 made against Warwickshire at Luton in 1983 when he lifted Milnes to long-on aiming for his 11th six.
Willey received excellent support from David Sales, with 31 from 37 balls, England Under-19 captain Ben Duckett with a breezy 30 and Rob Keogh - who shared a fifth wicket stand of 101 with him on his way to 61 from 40 balls, his maiden half-century in senior cricket.
Warwickshire limped to 199 all out in 31.1 overs and slipped to their eighth defeat of the season, which left them bottom of the group. There were pockets of resistance from William Porterfield, who stroked 44 before he was bowled by Steven Crook, and Scotland international Freddie Coleman - who gave a hint of his potential with a breezy 34 before he picked out long-on.
Maddy was given a guard of honour by Northamptonshire's players but he managed only a single in a three-ball innings before he was brilliantly stumped down the leg-side by David Murphy off Trent Copeland.
Maddy departed to a standing ovation from the Bank Holiday crowd after a career that began with a 40-over appearance for Leicestershire against Derbyshire in September 1993.