From the same Derbs game as before...
Christopher Birch - Fastest 50, 21 balls.
Accidentaly clicked next over instead of viewing the scorecard.
He was on 51 off 21, hit another 4, and was 55 off 22. I posted the commentary from the two overs along with the score from after, so you can do the math if you wish to cross-check it and see if it is right.