What seeding does
Seeding ranks the teams before the draw so the strongest can only meet late. It rewards whatever came before (a league season, last year's finish) and it decides who sits out the first round when the count isn't a power of two. Without it, the two best teams can meet in round one and the final is a coin flip between whoever was left.
Where each seed goes
Seed 1 plays the lowest seed, seed 2 plays the next lowest, and so on: in an 8-team bracket, 1 against 8, 4 against 5, 3 against 6, 2 against 7. Seeds 1 and 2 sit in opposite halves so they can only meet in the final; seeds 3 and 4 sit in the other two quarters so they can only meet the top two in the semifinals. The pattern repeats inside each half, which is why a 16-team bracket pairs 1 with 16 and 8 with 9 in the same quarter. TourneyPage draws it this way from the order of your team list.
Who gets the byes
A bracket is drawn on a frame of 4, 8, 16, or 32. Any other count leaves empty first-round slots, and those are byes: the top seeds skip round one and start in round two. With 10 teams the frame is 16, so seeds 1–6 get byes and round one is 2 games between seeds 7 through 10. With 6 teams in double elimination, seeds 1 and 2get byes, and the losers bracket inherits the gaps. A bye isn't a win on the record; the team just plays one game fewer.
TourneyPage places the byes and advances the bye teams on its own, and every size page shows exactly where they land: 10 teams, 6 teams double elimination, and the rest from 4 to 32.
What to seed on
In order of how defensible it is: the regular-season standings, if the teams played each other; head-to-head results, if they played some of each other; last year's finish; a coaches' vote; and, when you have nothing, a blind draw, which is honest and nobody can argue with. Whatever you use, say what it was on the page before the first game. The complaint is never the seeding; it is finding out afterward how it was done.
Snake-seeding pools
Pools are seeded in snake order: seed 1 to Pool A, 2 to Pool B, 3 to Pool C, then 4 back to Pool C, 5 to Pool B, 6 to Pool A, and so on down the list. Each pool gets one top seed, one middle seed, and one low seed, so no pool is a group of death and no pool is a walkover. TourneyPage deals the pools this way and lets you drag a team to another pool before the first score.
Seeding a playoff from pools
After pool play, the playoff seeds come from the standings: pool winners take the top seeds, runners-up the next ones, and so on, with teams in the same tier ordered against each other by the same tiebreakers the standings use. Byes go to the top seeds. Then the first round is checked, and where the bracket allows it, two teams from the same pool are kept apart so the playoff doesn't open with a rematch. With 12 teams as three pools of 4 and the top 2 advancing, that is a 6-team playoff with 2 byes for the two best pool winners. How pool play works goes through the standings and tiebreakers.
Double elimination and reseeding
In double elimination the seeds matter twice: once in the winners bracket, and again in where each loser drops. Losers enter the losers bracket crossed over from where they came, so two teams that just met don't meet again at once. The draw is fixed once it starts; small events don't reseed between rounds, and TourneyPage doesn't either, which is what lets it print every game's number and route before the first pitch.
In TourneyPage
Your team list is the seed order: the first team is seed 1. Reorder the list and the bracket redraws; the seeds show next to the team names on the public page, so nobody has to guess. The order locks when the first score goes in. Pools, byes, and the playoff seeds all follow from that one list.