Five quarter-final places filled on last night
Notts, Derbyshire, Birmingham and Leicestershire through in North Group
Glamorgan, Surrey, Hampshire and Somerset progress from South Group
Image source, Rex FeaturesSo, there we have it.
We started the night with 14 counties having a mathematical chance of reaching the quarter-finals and we finish the evening with five of them getting over the line.
That has to be one of the most dramatic group stages since the competition began.
Don't worry - T20 Blast action returns in four days time when the quarter-finals begin.
Until then, thanks for being with us.
Don't forget, every single one of those quarter-finals will be live here on BBC Sport.
We'll have full text commentary with live in-play video clips plus full match commentary on BBC Radio 5 live Sports Extra.
We'll kick things off on Tuesday evening with Derbyshire against Hampshire.
So here is your 2017 T20 Blast quarter-final line-up:
Glamorgan 100-3 (13 overs) v Middlesex 99-8
And there it is, the last result of the night is in.
Glamorgan beat Middlesex by seven wickets and finish top of the South Group to reach the quarter-finals for the second year in a row.
We now know are eight quarter-finalists. Stay tuned - we'll have the full draw for you shortly....
Glamorgan 89-3 (12 overs) v Middlesex 99-8
Under a run-a-ball now for Glamorgan as they move into the last two overs in Cardiff.
They'll finish things off despite the rain returning.
Glamorgan 78-3 (11 overs) v Middlesex 99-8
Down to the last three overs in Cardiff.
Glamorgan need 22 to win and make sure of top spot in the South Group. They're already guaranteed a home quarter-final after Hampshire's defeat by Somerset earlier.
So, the complexion of the two groups has changed somewhat from how it started this evening.
Sides who've slipped out of the top four of their respective groups are:
Glamorgan 59-3 (9 overs) v Middlesex 99-8
So, 41 runs required off 30 balls for Glamorgan to complete their chase of 100 against Middlesex.
The hosts look well set, but if Middlesex were to sneak the win, it would put them into the quarter-finals at the expense of Somerset.
They're still playing in Cardiff as Glamorgan chase 100 against Middlesex to secure top spot in the South Group.
Seven of the eight teams who'll be in the hat have already been decided....
So, we're nearly there with the full quarter-final line-up with just the one game still in play....
Kent 144-8 (20 overs) v Surrey 154-9
All over at Canterbury and Rikki Clarke takes three wickets in the final over to grab Surrey a home quarter-final!
His side win by 10 runs in an epic. Kent crash out.
Notts 201-8 (20 overs) v Leicestershire 203-5 (20 overs)
A brilliant final over from Mathew Pillans. Five runs and a wicket from it and Leicestershire Foxes beat Notts Outlaws to reach the last eight.
Kent 141-7 (19.3 overs) v Surrey 154-9
Alex Blake caught and bowled by Rikki Clarke and Kent need 14 off four balls.
Next ball, Jimmy Neesham clubs one into the deep, but Moises Henriques holds on to the catch.
14 needed off just three balls now and Kent's quarter-final dream looks gone.
Notts 198-8 (17 overs) v Leicestershire 203-5 (20 overs)
Notts Outlaws need six runs off the final two balls to beat Leicestershire Foxes and deny them a place in the quarter-finals.
Kent 140 (19 overs) v Surrey 154-9
Down to the last over at Canterbury and remember, the winner is definitely through in this one.
Jade Dernbach sees his first ball smashed for six by Jimmy Neesham, but then bowls four dots to finish it and give his side a great chance of going through.
Lancashire 163-4 (20 overs) v Birmingham 169-8 (19.3 overs)
Birmingham Bears are through to the quarter-final. Lancashire are out.
A truly amazing game of cricket.
The Bears were 145-1 in the 16th over with 19 runs needed before losing seven wickets. In the end Birmingham limp over the line.
An unbelievable knock from Dan Christian is over. He makes 73 from 32.
Notts need eight from the final over to win and knock out Leicestershire.
Lancashire 163-4 (20 overs) v Birmingham 160-8 (19 overs)
Unbelievable. Just unbelievable.
Four from six balls needed for Birmingham Bears.
Tie sees the Bears through.
Sussex 172-4 (20 overs) v Essex 117 (15.5 overs)
All over at Hove and Simon Harmer is the last man out for Essex as Jofra Archer bowls him around his legs with a yorker.
Sussex get the big win and move to 14 points, but they will finish outside the top four after Somerset's big win against Hampshire sees them finish with a superior net run-rate.
Lancashire 163-4 (20 overs) v Birmingham 159-7 (18.4 overs)
Bowled him!
Remarkable, just remarkable.
This could be the greatest comeback I have ever seen.