National League D1, Cardiff: Surrey 198-9 (45 overs) beat Glamorgan 190 all out (43.4 overs) by eight runs
Surrey claimed their second one-day title for the season
Points: Surrey 4, Glamorgan 0
Surrey gained some compensation for their failed championship defence by claiming the National League crown with a tense win over last season's champions.
The Lions, who were promoted from the second division last season, added the Division One title to the Twenty20 Cup they won in July.
Glamorgan were just eight runs short of victory when last man David Harrison was bowled by England Test squad member Rikki Clarke with eight balls remaining.
The hosts' run-chase had looked in good shape on 100-3, but a double strike to Tim Murtagh (3-44) sparked a slide which saw four wickets fall for 30 runs.
Earlier, half-centuries to Mark Ramprakash (53) and skipper Adam Hollioake (51) helped Surrey post a competitive score after they had slumped to 61-4 early on.
Mike Kasprowicz (2-25) took two early wickets, including Graham Thorpe for nine, before Adrian Dale cleaned up the tail to return figures of 4-35.
Glamorgan: J P Maher, R D B Croft (Capt), I J Thomas, M J Powell
D L Hemp, A Dale, M A Wallace, A G Wharf, D S Harrison
A P Davies, D A Cosker.
Surrey: S A Newman, A D Brown, M R Ramprakash, G P Thorpe, R Clarke
A J Hollioake (Capt), J N Batty, M P Bicknell, I D K Salisbury
F A Rose, T J Murtagh.