Summary

  • Derbyshire win the toss and elect to bowl first at Taunton

  • Somerset hit 265-5, the highest score in T20 Blast history

  • Tom Banton (73) and Rilee Rossouw hit half centuries for Somerset

  • Roussow (93) hits 36 off an over, as well as eight fours and seven sixes, as hosts dominate

  • Derbyshire bowled out for 74 from 11.2 overs during faltering chase

  • Lancashire face Yorkshire in semi-finals on 16 July

  • Somerset will take on Hampshire in next week's second semi-final at Edgbaston

  • Use audio icons at top of the page to listen to BBC radio commentary

Live Reporting

Ged Scott

  1. Derbyshire 9-1 (1 over) v Somerset (266-5)

    Wayne Madsen starts with a single.

    A long way to go.

    Second over coming up now from Josh Davey.

  2. wicket

    WICKET - Came c Banton b Overton 8

    Derbyshire 8-1 (0.5 overs) v Somerset (Target 266 to win)

    Dot, dot, four, four, OUT

    Lively start. Two dots, followed by two Harry Came boundaries.

    But then he edges to keeper Tom Banton - and Craig Overton has his first wicket.

    Wayne Madsen is the new man in.

  3. Derbyshire 4-0 v Somerset (Target 266 to win)

    The Derbyshire reply is underway, with two dot balls from Craig Overton to Harry Came, followed by an opening boundary.

  4. Somerset innings comes to an end

    Somerset 266-5 (20 overs) v Derbyshire

    Rilee RossouwRex Features

    Derbyshire are finally put out of their misery as Somerset have run out of overs.

    A new T20 Blast record score of 266-5 - at an average of more than two runs per ball.

    And the 82 runs off Mattie McKiernan's four overs - -capped by 36 off the last of them - is a new world T20 record.

    There's a few people needing to get their breath back here.

    Let's not write Derbyshire off yet. Who knows what might happen next? But let's just say they are now long odds. Very long odds.

  5. 6 runs

    New Blast record for Somerset

    Somerset 263-5 v Derbyshire

    Second successive six for Benny Green - and Somerset break the T20 Blast record.

    That beats the 261-2 posted by Birmingham Bears at Trent Bridge just 22 days ago.

  6. wicket

    WICKET - Lammonby b Hughes 31

    Somserst 251-5 (19.2 overs) v Derbyshire

    Tom Lammonby is bowled for 31 off nine balls! Six of them went to the boundary.

    Benny Green comes in to hit his first ball for six.

  7. Somerset 251-4 (19 overs) v Derbyshire

    Somerset's highest score in T20.

    The highest ever against Derbyshire in T20.

    And Derbyshire put them in!!!

    One over left. Alex Hughes has been handed the poisoned chalice.

  8. Somerset 235-4 (18 overs) v Derbyshire

    Another 24 come off that Ben Aitchison over as Derbyshire's bowlers buckle.

    Tom Abell and Tom Lammonby are maintaining the mayhem - and Somerset are heading for the record books.

  9. Anthony Gibson
    BBC Radio Somerset

    This crowd here at Taunton rose to South African Rossouw, who has made such a tremendous contribution to this T20 campaign for Somerset. And he acknowledged the applause.

    All around the ground people stood and cheered as a new hero for Taunton made his way to the Andy Caddick Pavilion.

  10. wicket

    WICKET - Gregory c McKiernan b Scrimshaw 1

    Somerset 209-4 (16.6 overs) v Derbyshire

    Second wicket in the over for George Scrimshaw.

    Just three runs off it.

    Four overs, two for 16.

    In a 200-plus total, an amazing effort. He will be looking to repeat that form when he returns here to Taunton with the England Lions next week.

  11. wicket

    WICKET - Rossouw c Hughes b Scrimshaw 93

    Somerset 207-3 (16.2 overs) v Derbyshire

    Finally Rilee Rossouw is gone as George Scrimshaw once again slows things up.

    He has been different gravy tonight.

  12. Somerset 206-2 (16 overs) v Derbyshire

    Dave Fletcher
    BBC Radio Derby Sport

    We have another innings to go here, but we can pretty much start the car now.

    I think you can safely say Yorkshire v Lancashire in the first game and Somerset and Hampshire in the second game next Saturday.

  13. 200 runs

    200 up for Somerset

    Somerset 206-2 (16 overs) v Derbyshire

    The 200 comes up and Rilee Rossouw moves nearer a century on 93.

    Four overs left. The Bears record T20 Blast score of 261 is under threat,

    George Scrimshaw comes back on for his last one.

  14. Dave Fletcher
    BBC Radio Derby Sport

    This is an absolute disaster for Mattie McKiernan.

    The 82 off of his four overs is comfortably the worst figures by a Derbyshire player in the T20 Blast.

  15. 6 runs

    36 off one over

    Somerset 191-2 (15 overs) v Derbyshire

    Rilee RossouwRex Features

    Brutal from Rilee Rossouw as the powerful left-hander dumps poor Mattie McKiernan into the River Tone, with the second of five sixes in the over.

    16 off the first three balls, followed by a misthrow, ruled as a no ball.

    Then comes another six swept over square leg, followed by another two out of the ground. Pure carnage!

  16. Mark Davis
    Former Somerset seam bowler

    I'm amazed Mattie McKiernan is back on, he had gone for 46 runs off three. It's a big call to have called him back on.

  17. Somerset 155-1 (14 overs) v Derbyshire

    16 off that over - and a wicket. But Somerset are still clearly heading for 200 here.

    One more to come from George Scrimshaw though.

  18. Dave Fletcher
    BBC Radio Derby Sport

    The comeback starts here...

    The earlier drop cost 44 runs. That's not great.

  19. Mark Davis
    Former Somerset seam bowler

    It's getting away from Derbyshire now. It really is.

    Somerset are hitting fours and sixes at will and they are under serious pressure.

  20. wicket

    WICKET - Banton c Reece b Hughes 73

    Somerset 151-2 (13.3 overs) v Derbyshire

    Tom Banton hits Alex Hughes for successive sixes then holes out to Luis Reece looking for a third.

    A costly drop that has cost Derbyshire 44 runs.

    Tom Abell is the next man in.