Grid Track With All Track Column

grid.css

body {
  margin: 40px;
  background-color: #353;
}

.wrapper {
  display: grid;
  grid-gap: 10px;
  height: 400px;
  grid-template-columns: 80px 5px 1fr;
  grid-template-rows: 60px 60px 1fr;
  grid-auto-columns: 1fr;
  grid-auto-row: 1fr;
  background-color: #555;
  color: #244;
}

.separator {
  background-color: red;
}

.hdr {
  background-color: #444;
  color: #fff;
  border-radius: 5px;
  padding: 20px;
  font-size: 150%;
}

.trk {
  background-color: #222;
  color: #fff;
  border-radius: 5px;
  padding: 20px;
  font-size: 150%;
}

.ah {
  grid-area: 1 / 1;
}
.at {
  grid-area: 1 / 3;
}
.bh {
  grid-area: 2 / 1;
}
.bt {
  grid-area: 2 / 3;
}
.ch {
  grid-area: 3 / 1;
}
.ct {
  grid-area: 3 / 3;
}

grid.html

<div class="wrapper">
  <div class="separator" style="grid-area: 1 / 2 / 4 / 2"></div>
  <div class="hdr ah">8:00</div>
  <div class="trk at">Track 1</div>
  <div class="hdr bh">9:00</div>
  <div class="trk bt">Track 2</div>
</div>