Someone

alias speedtest {
  clear $ww | window $ww
  %speedtest.g = 0 | %speedtest.w = 0 | %speedtest.t = 0 | %speedtest.s = 6
  echo $ww Total Strokes: 0 , Mistakes: 0 , Avg Strokes/Min: 0
  speedteststart
}
alias -l speedteststart {
  %speedtest.n = 0

  ;Sentence with 12 words
  echo $ww $sentence(12)
}
alias -l speedtestend {
  .timerspeedtest off
  var %a = $round($iif(%speedtest.t = 0,0,$calc((%speedtest.g) / %speedtest.t * 60 - (%speedtest.w * 5))),2)
  echo $ww $chr(160)
  echo $ww Listing results:
  echo $ww Correct Strokes: %speedtest.g
  echo $ww Incorrect Strokes: %speedtest.w
  echo $ww Time: $duration(%speedtest.t)
  echo $ww Total Strokes: $calc(%speedtest.g + %speedtest.w)
  echo $ww Average Strokes/Min: $iif(%a < 0,0,%a) (mistake = -5)
  echo $ww World record: 750 (Set by Barbara Blackburn in 1985)
  echo $ww Amount of time you have to type faster to beat the world record: $duration($ceil($calc(%speedtest.t - (%speedtest.t * $iif(%a < 0,0,%a) / 750))))
  unset %speedtest.* | halt
}
alias -l updatespeedtest {
  var %strokesmin = $round($iif(%speedtest.t = 0,0,$calc((%speedtest.g) / %speedtest.t * 60 - (%speedtest.w * 5))),2)
  var %a = Total Strokes: $calc(%speedtest.g + %speedtest.w) , Mistakes: %speedtest.w , Avg Strokes/Min: $iif(%strokesmin < 0,0,%strokesmin)
  inc %speedtest.t
  rline $ww 1 $+($chr(2),%a)
}

on *:keydown:$($ww):*:{
  if (!%speedtest.s) return
  if !$timer(speedtest) { updatespeedtest | .timerspeedtest 0 1 updatespeedtest }
  if (!$isonly($keychar,abcdefghijklmnopqrstuvwxyz . $+ $chr(44))) return
  inc %speedtest.n
  var %l = $iif($calc($line($ww,0) / 2) = $int($calc($line($ww,0) / 2)),$line($ww,0),$calc($line($ww,0) - 1)))
  addchar $chr(3)
  if ($mid($line($ww,%l),%speedtest.n,1) === $iif($keyval = 32,$chr(160),$keychar)) { inc %speedtest.g | addchar 3 }
  else { inc %speedtest.w | addchar 4 }
  addchar $iif($keyval = 32,$chr(95),$keychar)
  if (%speedtest.n = $len($line($ww,%l))) { 
    dec %speedtest.s | if (!%speedtest.s) speedtestend
    speedteststart
  }
}
on *:close:$($ww):{
  .timerspeedtest off
}

alias randomword {
  var %wrd1 = bcdfghjklmnpqrstvwxz, %wrd2 = aeiouy

  ;Some Word Combinations, 1=Consonant 2=Vowel
  var %wrdcmb = 101:1001:1011:10110:110110:010:0110:1010:0101: $&
    101010:10101:1101:11011:10011:011:100:01010

  var %wrd = $gettok(%wrdcmb,$rand(1,$numtok(%wrdcmb,58)),58), %a = 1, %r
  while %a <= $len(%wrd) {
    %r = $+(%r,$iif($mid(%wrd,%a,1),$mid(%wrd1,$rand(1,$len(%wrd1)),1),$mid(%wrd2,$rand(1,$len(%wrd2)),1)))
    inc %a
  }

  return %r
}
alias sentence {
  var %a = 1, %cma = $rand(2,$calc($$1 -1)), %r
  while %a <= $$1 {
    %r = $+(%r,$iif(%r,$chr(160)),$randomword,$iif(%cma = %a,$chr(44)))
    inc %a
  }
  return $snc(%r)
}
alias isonly {
  var %a = 1
  while %a <= $len($$1) {
    if $mid($$1,%a,1) $+(!isin,$prop) $$2 return $false
    inc %a
  }
  return $true
}
alias -l snc return $+($upper($left($1,1)),$lower($right($1-,-1)),$chr(46))
alias -l ww return @SpeedTest
alias -l addchar {
  if ($calc($line($ww,0) / 2) = $int($calc($line($ww,0) / 2))) { echo $ww $$1- }
  else { rline $ww $line($ww,0) $+($line($ww,$line($ww,0)),$$1-) }
}