Making it as simple as "Gallo is a three outcome hitter" ignores meaningful pieces of the equation.
If you look at overall numbers, there was a 14% chance Gallo or Napoli would hit at least one single in their plate appearances. There was a 20% chance at least one of their plate appearances would end with a double or single.
A walk is fine, you add the odds Odor has a single or double. Odor has a 12% of PA's chance to hit a single and a 3% chance of PAs to hit a double. (There is a 22% chance Gallo or Napoli walk.)
Ultimately, there was a 25% chance they saw a single or double out of Gallo, Napoli, or Odor (including situations where Odor doesn't get to the plate) where you know you're going to get at least you're tying run in. (The odds they would produce one run were of course much higher---they could hit a 3B, HR, plus the marginal stuff like an error, two walks or heck, a Gallo walk plus Napoli sac fly or the off chance Gallo pulls off a sac fly, etc.)
I don't know how the math would ultimately work out but you can't ignore 25%+ of outcomes in this calculation.
If you look at overall numbers, there was a 14% chance Gallo or Napoli would hit at least one single in their plate appearances. There was a 20% chance at least one of their plate appearances would end with a double or single.
A walk is fine, you add the odds Odor has a single or double. Odor has a 12% of PA's chance to hit a single and a 3% chance of PAs to hit a double. (There is a 22% chance Gallo or Napoli walk.)
Ultimately, there was a 25% chance they saw a single or double out of Gallo, Napoli, or Odor (including situations where Odor doesn't get to the plate) where you know you're going to get at least you're tying run in. (The odds they would produce one run were of course much higher---they could hit a 3B, HR, plus the marginal stuff like an error, two walks or heck, a Gallo walk plus Napoli sac fly or the off chance Gallo pulls off a sac fly, etc.)
I don't know how the math would ultimately work out but you can't ignore 25%+ of outcomes in this calculation.