Since commenter Tom asked, here's the some data of how far Craig Biggio has traveled to get hit by pitches.
Craig Biggio has been hit by a pitch 136 times in games away from Houston. Those plunks have taken place an average of 1,030 miles from Houston, and a total of 140,026 miles. That's about 5 and a half times around the earth or nearly 6 tenths of the way to the moon. That's also not very far away from 136 times the distance from Houston to Milwaukee, which is right around 1,006 miles, depending on what math you believe or where you hold the tape measure.
However, Biggio doesn't always have to go home after every plunk, and sometimes he gets hit multiple times in the same visit to an opposing park. Factoring out the times he's been hit more than once during a road series, that leaves 116 visits to opposing parks during which he's been plunked. Those visits have averaged 1,047 miles from Houston, and add up to 121,465 miles. He's had 98 road series in which he was hit once, averaging 1,062 miles away, 16 series on the road in which he got hit twice, averaging 1,007 miles away (very close to the distance to Milwaukee), and 2 road series in which he recorded 3 plunks, averaging 616 miles away (one at Miller Park on June 29th and 30th of 2001, and the other at Arlington).
He doesn't necessarily have to go home between each series in which he's plunked either, and he's had 6 different road trips during which he was hit in 3 different parks. Twice he's been hit 5 times in 3 parks on the same road trip. However, calculating the distance traveled along the Astros route from city to city on multi-plunk road trips will have to wait for another day.
Including home plunks into the average (as 0 miles away) the average distance from Houston for all plunks is 498 miles.
The closest park to Houston in which Biggio was hit is The Ballpark at Arlington, and the furthest away is Candlestick Park, though these calculations are inaccurate enough that it Montreal's Olympic Stadium might be further.
On Monday, I'll take a look at whether or not plunks increase or decrease as milage from Houston increases, but the list of cities in which he's played and not gotten hit may be a clue: Boston, Washington DC, Cleveland, Detroit, Minneapolis, and Seattle.
Note: Distances used here were calculated based on latitude and longitude of each park, which may not be very accurate, and a formula found on the internet to calculate distances between points of latitude and longitude which makes wild assumptions about the earth be spherical. So, these numbers might not meet the level of accuracy demanded by some readers for their high precision hit-by-pitch calculations.