The German spent 10 hours on court en route to her first Grand Slam semifinal, the most by over two hours of any player left in the draw, and hit a tournament-leading 44 aces surpassing the 300-ace threshold for the second consecutive season. But when she's bad, she can be horrid.
While Meghan attended Wimbledon two years ago as a guest of Ralph Lauren, she has not yet made an appearance in the royal box this year. She was spraying balls.
This semi-final was billed as attack versus defence and it was the solid, reliable manner of Kerber that prevailed as she let an erratic Ostapenko, who was going for winners on nearly every shot, hand her a swathe of free points. Williams won that for a second consecutive Wimbledon title, then sat out the grass-court tournament previous year while pregnant, part of a 16-month gap between majors.
This will be Williams' 10th final at the All England Club, according to Wimbledon, putting her in position to tie Margaret Court's all-time record of 24 Grand Slam titles.
In the second set, the left-handed Kerber quickly went into the lead with Ostapenko choosing to live as dangerously as before.
It worked. The 11th-seeded Kerber reached her second final at the All England Club by avoiding too many mistakes and using a seven-game run to seize control of the match. "These are the matches I was working for as a kid and to be in the final at Wimbledon is great".
That was also the year the German was the runner-up at Wimbledon, losing to Serena Williams in the title match.
Williams has every reason to be confident against 13th-seeded Goerges of Germany, who is playing in her first Grand Slam semifinal.
But Williams, who looked disappointed but still unruffled as he has been right through the tournament - so serene that a journalist couldn't resist asking whether this had something to do with motherhood - reeled off the next four points to break right back and win the match.
Kerber is a former No. 1 and a two-time major champion, both coming in 2016 at the Australian Open and U.S. Open. She had 14 winners and 10 unforced errors, while Kerber had three winners and - this was key - zero unforced errors.
After having Princess Charlotte in May 2015, the Duchess's maternity leave lasted six months and it was expected to be the same length of time for her third child. There was one brief blip to come: Williams got broken for the only time while serving for the match at 5-3.