Runs are added back to the lineup this week: 7 in total, 1 more than last week. Same format, same offer, a different mix of markets under the same conditions.

The week closed at 22,214 tickets and $1.18M in total revenue, against $125,719.71 in media investment. Blended cost per acquisition landed at $5.66 a ticket; blended return on ad spend at 9.37x. Those are the numbers that get quoted. The more useful ones sit underneath them.

Across the 7 runs, CAC ranged from $3.57 to $8.96 per ticket. The largest run by volume was also the cheapest to acquire this week. The correlation between scale and efficiency held at the top of the range. At the bottom of the range, the pattern broke. The smallest run was not the priciest one to acquire.

Net revenue per attendee ranged from $38.12 to $75.76 across the same 7 runs. Net revenue per attendee did not track CAC this week at either extreme. The cheapest and the most expensive runs to acquire both landed somewhere in the middle of the per-person yield range.

Week 19 holds the run count steady at 7. Whether the pattern breaks the same way again is the next test.