In 2017 GB players only played one first set TB that was longer than Julie did today.
In Week 45, Sara Beth took the first set 7-6(13) against Serban in Shrewsury, en route to victory.
At 15 points, this was also the most points won by a GB player in a TB in 2017, and the joint longest TB in any set in any match.
The other occasion where a GB player was involved in a TB that required 15 points to win it was:
Week 13, Em App lost the second set TB against In-Albon 6-7(13) in S.M. di Pula, in a straight sets loss.
There was one other occasion when a GB player scored as many points in a TB in 2017, as Julie did today:
Week 14, EWS won the second set TB against Bhunu 7-6(12) in a straight sets win, in Sharm.
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Data I post, opinions I offer, 'facts' I assert, are almost certainly all stupidly wrong.