Yes, but 11-10 to the higher rated player is still the most likely result. It's that close!
Weird subtlety: an 11-10 handicap may be close to fair, but that doesn’t mean 11-10 is the most likely score in a race to 11. Because of the stopping rule, the winner must win the last rack. So 11-10 requires first getting to 10-10, while 11–9 only requires getting to 10-9. Hill-hill has more paths, but it also requires one extra rack from the eventual loser; when that player is below 50% per rack, 11-9 edges it out.
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Here is another way a small skill difference like 13 points may be more meaningful than first appears. Winning a tournament requires winning many matches.
So imagine two 128-player single-elimination tournaments
The first has Gorst (850) and 127 others all rated 800.
The second has Filler (863) and 127 others all rated 800.
Gorst is 78.9% to win each match and 19% to win the tournament [that match percentage gets raised to the 7th power]
Filler is 84.3% to win each match and 30% to win the tournament-
This is a more meaningful difference than you might guess from just looking at the match numbers.
If the 800s all go for $100 in each of the winner-take-all calcuttas, Gorst should go for about $3,000 and Filler should go for $5,500