At one point in this particular game the odds on the underdog winning were 400-1.
Nothing like a reminder that these things can happen ...
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On Friday BBC Wales online are planning, for the first time, to run a live page as part of coverage of the referendum result. It'll kick off at about 10am and the aim is to update every couple of minutes.
We'll be on air from the stunning contraption near the Senedd steps from 10.30am and expect we'll know by around lunchtime whether the three opinion polls published since yesterday by ITV Wales, S4C and Wales Online have been near the mark.
If - if there is, as they all suggest, a Yes win, will all four Welsh party leaders stand side by side to face the cameras and announce that it is "a very good afternoon / evening / night for Wales?"
Or will the consensus be over before the party gets going?