Cardiff won 22-19 against Glasgow at Hughenden last night to keep up their bid to win the Welsh/Scottish League.
With three matches remaining, they are two points behind Neath and Llanelli, though they have a game in hand over leaders, Neath.
Cardiff took an early lead in Glasgow when centre Matt Allen scored a try and three Nicky Robinson penalties took them ahead by 14-6 at the interval.
In the second half, wing Nick Walne scored a try and Robinson landed his fourth penalty to make it 22-9, but a late Glasgow rally brought them ten points, including a try by replacement scrum half Kenny Sinclair.
The top three positions are now: -
P W D L For Agst Tries Pts
Neath 18 13 0 5 553 332 58 39
Llanelli 17 13 0 4 493 331 46 39
Cardiff 17 12 1 4 406 325 46 37
The remaining matches for the three clubs are: -
Neath: May 3 v Pontypridd (h); May 8 v Swansea (a).
Llanelli: May 3 v Edinburgh (a); May 7 v Caerphilly (a); May 10 v Cardiff (a).
Cardiff: May 4 v Swansea (a); May 7 v Bridgend (h); May 10 v Llanelli (h).
Glyncoch have had a remarkable past couple of seasons, having lost just once in the last two seasons. Their fine form has been capped by claiming the South Central Division 5 crown of the SWALEC League.
With two rounds of the HSBC Sevens World Series remaining, Wales head coach Paul John has sprung a few surprises for this week's penultimate round in Glasgow. And there's still plenty to play for with World Cup spots on the line.