election      : qhjyr2 (BV2276), STAR, 1 winner
tieBreakType  : head_to_head
served order  : Ana 15, Ben 14, Cora 14, Dev 11
roundResults  : winner Ana, runner_up Cora

the charts read roundResults, so they show Ana vs Cora.

=== backend sort: main ===
  summaryData.candidates : Ana, Ben, Cora, Dev
  frontend selection: positional
    Scores Table (gold) : Ana 15 + Ben 14
    Runoff Table        : Ana 3 | Ben 2 | Equal Support 0
  frontend selection: roundResults
    Scores Table (gold) : Ana 15 + Ben 14
    Runoff Table        : Ana 2 | Cora 1 | Equal Support 2

=== backend sort: fixed ===
  summaryData.candidates : Ana, Cora, Ben, Dev
  frontend selection: positional
    Scores Table (gold) : Ana 15 + Cora 14
    Runoff Table        : Ana 2 | Cora 1 | Equal Support 2
  frontend selection: roundResults
    Scores Table (gold) : Ana 15 + Cora 14
    Runoff Table        : Ana 2 | Cora 1 | Equal Support 2

compare on main, two non-winners: NaN
Array.prototype.sort coerces that to +0, i.e. "equal" -- the runnerUpRound key is never read.