Erika is 18, got up to #11 in juniors.
She's also the older sister of Mirra (born 2007) who has already made top-300 WTA (and is #2 or so in juniors, despite having nearly three more years of juniors to play)
That tiebreak was absolutely horrendous (from both).
Harriet has played far better than this this year (and still lost, to be fair). It wouldn't take a big increase in level to turn this around but her body language doesn't fill me with hope the come back is on.
Andreeva holds. Then comes out on top of a brutal point at *30-30, Harriet finds a decent serve to save it, but a weak backhand gives the Russian a second chance. Saves it after a successful challenge, gets a cheap return error for a game point, and a wild forehand gives her the game.