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SportsDataverse

@sportsdataverse.org

Building the network of people and open-source sports data packages to foster diversity and inclusion in sports analytics. Visit our site (sportsdataverse.org) or check our GitHub (github.com/sportsdataverse). Contact @saiemgilani.bsky.social for q's

Posts Replies Media

SportsDataverse @sportsdataverse.org · 09/09/2026

Or just run the season. 138 FBS teams, 761 games, 51 of them played. cfb_simulations() splits the run into chunks and dispatches them through future, so a parallel plan spreads it across your cores. summary() returns a gt table grouped by conference.

A ten-panel chart titled 'Who wins each conference?', one panel per conference, showing each league's top five teams by championship probability over 10,000 simulations. James Madison leads the Sun Belt at 70 percent and Liberty Conference USA at 70; Miami the ACC at 63, Indiana the Big Ten at 45, Texas Tech the Big 12 at 43, UNLV the Mountain West and Toledo the MAC at 34, Washington State the Pac-12 at 31, South Florida the American at 28, and Texas the SEC at 21.

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SportsDataverse @sportsdataverse.org · 09/09/2026

Which lets you ask what a rule change is actually worth. Take 10,000 simulated 2026 seasons and seed the same ones twice, once under each policy. 10 teams helped, 12 hurt. Miami gains 14 points of playoff probability purely from the ACC's guaranteed bid.

A diverging bar chart titled 'What the CFP's 2026 auto-bid rule actually changes'. Ten teams gain playoff probability under the 2026 policy and twelve lose it, versus the 2024-25 rule, over identical simulated seasons. Miami gains the most at +14 percentage points; SMU +4; Liberty loses the most at -3, with Toledo, South Florida, Western Michigan and Penn State at -2.

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SportsDataverse @sportsdataverse.org · 09/09/2026

The part that isn't nflseedR: college football has no single rulebook. Nine conferences ship with their OWN published procedure. The Mountain West leads with a metric composite, not head-to-head. The SEC ends on a capped scoring margin. The Big 12 counts total wins.

A chart titled 'Nine conferences, ten rulebooks' showing each conference's tiebreaker ladder as a column of coloured steps, top rung first. Most start with head-to-head; the Mountain West starts with a metric composite instead, the SEC ends on a capped scoring margin, the Big 12 counts total wins, and Conference USA includes an APR rung. The ACC appears twice — a six-rung cascade before 2026 and a three-rung one from 2026.

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SportsDataverse @sportsdataverse.org · 09/09/2026

It's adapted from nflseedR (@nflverse.com) by Lee Sharpe and Sebastian Carl (@mrcaseb.com). Same architecture — standings, then conference ranks, then seeds; a week-by-week simulation with a pluggable results generator — rebuilt in college football's semantics.

A dark code card titled 'The whole workflow is four calls', showing R code: load a 2026 schedule with cfbfastR::load_cfb_schedules(), map it with cfb_games_from_schedule(), compute cfb_standings(), seed the field with cfb_playoff_seeds(autobid = "2026"), then run cfb_simulations() over 10,000 seasons under a parallel future plan.

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SportsDataverse @sportsdataverse.org · 09/09/2026

🏈 cfbseedR is on CRAN. An R package to simulate college football seasons: standings, conference champions, and a seeded 12-team Playoff field — using each conference's own published tiebreaker procedure. Pairs with cfbfastR. install.packages("cfbseedR") Built by @saiemgilani.bsky.social

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