Derek Grifka
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derekgrifka.bsky.social
Derek Grifka
@derekgrifka.bsky.social
Data Scientist. Marquette basketball enjoyer.
https://dgrifka.github.io
Creator of https://bsky.app/profile/mlb-simulator.bsky.social
Reposted by Derek Grifka
Introducing a daily playoff probability model and a "rooting interest guide" (inspired by @PFF_Moo from Twitter).
 
Playoff %s from 10K sims w/remaining SOS & home/away advantages.

Rooting Interest analyzes who each team's fans should root for today, based on playoff implications
June 4, 2025 at 12:39 PM
I'm excited to announce I've accepted a role as Data Scientist for the Chicago Fire.

Thanks to everyone who has given me feedback and advice. I'm ecstatic to be able to learn from/work with some very bright individuals and contribute to the success of a storied MLS franchise!
March 24, 2025 at 12:19 PM
I'm a Houston Texans fan and have never seen my team win the Super Bowl, which made me think:
If you were born today, then how likely is it that you would be alive to see your favorite team win the Super Bowl?
You have a 50% chance of seeing your team win 1 by age 22.
#NFL #SBLIX
February 4, 2025 at 2:43 PM
Skeptical of Notre Dame's "middle 8" advantage, I thought good teams dominate throughout.
But data shows ND scores 3-18 more points (89% confidence) in these minutes vs other periods.
Whether or not this matters, they do in fact score more in the middle 8.

www.wsj.com/sports/footb...
January 22, 2025 at 3:54 AM
When McLellan took over, the Red Wings were .433. Since then? 8-4.

Using a Beta-Binomial model with a .500 prior, there's an 81% chance they're now truly an above-.500 team.

Best estimate of their true win rate: .591 (90% CI: .418-.755)
January 21, 2025 at 12:02 AM
Hockey is cool
December 31, 2024 at 11:50 PM
I developed a neural net for this year's NFL's Big Data Bowl. Have a lot of ppl to thank, but wanted to share bc I enjoyed working on it and hope you enjoy reading it
www.kaggle.com/code/derekgr...

github.com/dgrifka/nfl_...
Overlap: How can pre-snap motion exploit it?
Explore and run machine learning code with Kaggle Notebooks | Using data from No attached data sources
www.kaggle.com
November 18, 2024 at 3:19 AM