She said: "Personally, I can't speak for anybody else, but if my leg was broken I'd be crawling to the next ball".
On a roasting Court Two, the Briton was in the hottest of form in the first set, bashing big forehand winners past her Latvian opponent to clinch it in less than 20 minutes.
While Watson stopped short of empathising too much with Bernard Tomic after his claim that he was bored during his first-round match, she has experienced her own struggles with motivation.
She dropped out of the top 100 and failed to qualify for the French Open but things finally came together again in Eastbourne last week, where she reached the semi-finals.
She will face either No.15 seed Elena Vesnina or former world number one Victoria Azarenka in round three.
"It looks like she feels really comfortable coming into this match".
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Hayward thrived under Snyder in improving his scoring average by 5.7 points to score 21.9 per game last season. The 27-year-old Hayward can also show a little patience if asset-rich Boston must wait out Cleveland.
Watson had a mid-season surge as she managed to reach the semifinals at the Aegon International, a Premier event, defeating many quality players to do so.
"She started to step up in the second set but I was able to keep my cool and just stick with her".
Then with a grin, she added: "And I'm going to watch Love Island".
"I was pleased with how I remained calm and just kept doing what I was doing".
The second was a tighter affair but the 25-year-old twice recovered from a break down to run out a 6-0 6-4 victor at the All England Club. She's a great player and I had to expect she'd raise her level and try something knew. "You don't get to where she's got to in her career without, you know, being a really good player".