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Jesse Davis

@jessejdavis.bsky.social

Professor @ KU Leuven researching AI, machine learning, and sports. Co founder of runeasi

1,326 Followers  |  163 Following  |  46 Posts  |  Joined: 16.11.2024
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Posts by Jesse Davis (@jessejdavis.bsky.social)

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Mauricio Pochettino suddenly has a glut of USMNT options as the World Cup looms Timing and luck often dictate a teamโ€™s success at tournaments. And the co-hosts have players coming into form at just the right time

Fortunes at the World Cup are largely dictated by the timing of primes and injuries and form. After months of concern, the United States men's national team suddenly find itself in a very good spot with all three.

There are 107 days to go until the U.S. plays Paraguay.

Column @theguardian.com

25.02.2026 14:28 โ€” ๐Ÿ‘ 17    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Biases in Expected Goals Models Confound Finishing Ability Expected Goals (xG) has emerged as a popular tool for evaluating finishing skill in soccer analytics. It involves comparing a player's cumulative xG with their actual goal output, where consistent ove...

Longer and more worked out versions here

arxiv.org/abs/2401.09940

25.02.2026 20:01 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
KU Leuven Institute of Sports Science The KU Leuven Institute of Sports Science is an interdisciplinary network of KU Leuven researchers committed to enhancing sports performance and its broader societal impact.

โšฝCall for Abstracts โšฝ

The abstract submission for the Leuven Institute of Sport Scienceโ€™s #FootballAnalytics Symposium closes this Thursday, Feb 26 @ 17:00 CET

The symposium is on April 23rd. Speakers include @unravelsports.bsky.social and Pascal Bauer (DfB)

www.kuleuven.be/liss/events/...

23.02.2026 16:38 โ€” ๐Ÿ‘ 5    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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New Vacancy - Data Engineer I am excited to share we are recruiting for a Data Engineer to join our Research team at Liverpool Football Club - this is a fantastic opportunity for someone to be aโ€ฆ | ... New Vacancy - Data Engineer I am excited to share we are recruiting for a Data Engineer to join our Research team at Liverpool Football Club - this is a fantastic opportunity for someone to be a par...

Weโ€™re recruiting for a Data Engineer to join our Research team at Liverpool FC. In my (perhaps biased) view, itโ€™s a great opportunity to join an excellent team, work at the forefront of sports analytics, and have a tangible impact.
www.linkedin.com/posts/conorq...

19.02.2026 12:24 โ€” ๐Ÿ‘ 36    ๐Ÿ” 33    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 6
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Watching soccer in the soccer with @hugoriosneto.bsky.social

15.02.2026 17:41 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Family night for OHL - Arsenal

11.02.2026 20:10 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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I'm thrilled that our spinoff Runeasi has closed an investment round and secured โ‚ฌ1 million in new funding!

This will help us in our quest to make the world run better!

trends.knack.be/ondernemen/a...

06.02.2026 09:09 โ€” ๐Ÿ‘ 9    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Get ready to meet futi Sorry for the wait. Would some free advanced data make it up to you?

We're so back

27.01.2026 12:23 โ€” ๐Ÿ‘ 103    ๐Ÿ” 27    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 7
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The World Cup is out of reach for many. The hope lies outside the stadiums | Leander Schaerlaeckens The opportunity for this tournamentโ€™s legacy is in the fan fests, camps and tune-ups accessible to more than the lucky few

The 2026 World Cup will be inaccessible to many, whether financially or geographically. But the tournament's unprecedented vastness will also give it an enormous footprint, a chance to fashion a kind of shadow World Cup out of the tournament's orbit. To still leave a legacy.

Column @theguardian.com

21.01.2026 18:56 โ€” ๐Ÿ‘ 9    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
LISS Football Analytics Symposium On the evening of 23 April 2026, LISS and the DTAI Sports Analytics Lab will host the Football Analytics Symposium. During this symposium, international speakers will share insights on the use of mach...

โšฝEvent Announcementโšฝ

Leuven Institute of Sport Scienceโ€™s #FootballAnalytics Symposium will take place on April 23!

Current invited speakers are Prof. Pascal Bauer (DFB, USaarland) and @unravelsports.bsky.social

Abstract submission closes on Feb 26 @ 17:00 CET

www.kuleuven.be/liss/events/...

22.01.2026 09:08 โ€” ๐Ÿ‘ 9    ๐Ÿ” 7    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image 03.01.2026 19:05 โ€” ๐Ÿ‘ 9    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Can we measure the ability to block dangerous passes in soccer? โ›”๏ธโšฝ๏ธ

We recently presented our latest research paper "Quantifying Off-Ball Defensive Impact through Cover Shadows" at the Hudl Performance Insights 2025 Conference:

๐Ÿ“บ youtu.be/kf6far1Zst8?...
๐Ÿ“ static.hudl.com/craft/perfor...

22.12.2025 12:11 โ€” ๐Ÿ‘ 11    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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OHL Arsenal with a very happy 12 year old

17.12.2025 19:59 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Congratulations Chloe! Thatโ€™s fantastic news!

12.12.2025 21:17 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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From Data to Wisdom: Playing Footballโ€™s Information Game at the Right Level โ€“ Jan Van Haaren From Data to Wisdom: Playing Footballโ€™s Information Game at the Right Level.

My latest blog post "From Data to Wisdom: Playing Footballโ€™s Information Game at the Right Level" explores how football clubs can move from simply collecting data to making better, evidence-based decisions.

janvanhaaren.be/posts/from-d...

12.11.2025 10:00 โ€” ๐Ÿ‘ 18    ๐Ÿ” 9    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 2
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Are set plays ruining the Premier League? How throw-ins are boosting Arsenal, but adding boredom As Premier League teams learn set pieces are a more efficient way to score, open play goals become rarer. Can the game withstand such a shift?

I've always wondered (and feared) what might happen if everyone started taking set pieces seriously. The first eight weeks of the Premier League season might be giving us a glimpse into the future, where soccer no longer features much, well, soccer: www.espn.com/soccer/story...

21.10.2025 13:16 โ€” ๐Ÿ‘ 50    ๐Ÿ” 11    ๐Ÿ’ฌ 28    ๐Ÿ“Œ 29
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Congratulations to DTAI PhD student Laurens Devos for successfully defending his PhD thesis on "Verification and reasoning for decision tree ensembles": tinyurl.com/47efmbj5
๐ŸŽ“๐Ÿ‘๐Ÿฅ‚๐Ÿพ
@wannesm.bsky.social
@jessejdavis.bsky.social

17.10.2025 14:42 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Weโ€™re excited to launch the ๐’๐ค๐ข๐ฅ๐ฅ๐‚๐จ๐ซ๐ง๐ž๐ซ ๐— ๐๐ฒ๐’๐ฉ๐จ๐ซ๐ญ ๐€๐ง๐š๐ฅ๐ฒ๐ญ๐ข๐œ๐ฌ ๐‚๐ฎ๐ฉ - a hackathon-style challenge that will bring together the community to collaborate, compete, and innovate using open-source SkillCorner data.

๐Ÿ‘‰ Sign up pysport.org/analytics-cup

14.10.2025 10:36 โ€” ๐Ÿ‘ 18    ๐Ÿ” 18    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 3
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How Do We Know a Metric Is Good? A Case Study on VAEP In sports analytics, the primary goal is to develop indicators that quantify the skills, capabilities, and tendencies of athletes andโ€ฆ

Before an app launches, it undergoes usability testing. Why shouldn't an advanced sports metric?

In our latest blog, we propose 4 criteria:
1๏ธโƒฃ Trustworthy
2๏ธโƒฃ Novel
3๏ธโƒฃ Intuitive
4๏ธโƒฃ Useful

Then, we put VAEP to the test...

\w @jessejdavis.bsky.social & Maaike Van Roy

dtai.cs.kuleuven.be/sports/blog/...

22.09.2025 12:10 โ€” ๐Ÿ‘ 13    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 2

Yes, this should also be possible when using the Poisson Binomial. You can use the approach outlined by @centralwinger.com that we refer to in the blog.

TBH, I think that would also be the best way to do it for MCMC as then you avoid using rejection sampling.

12.09.2025 10:29 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Match xG Simulator How (im)probable was the match result? Check it out here.

@probberechts.bsky.social has also provided an online tool that computes the exact probabilities:

dtai.cs.kuleuven.be/static/sport...

11.09.2025 11:38 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

This is joint work with @janvanhaaren.be & @probberechts.bsky.social

Many others have looked at the MCMC approach (cf @danny.page's online simulator) or discussed how to use the Poisson Binomial distribution to compute these probabilities exactly (cf @tonyelhabr.bsky.social, Jonas Lindstrรธm,...)

11.09.2025 11:37 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Expected goals and the Monte Carlo Trap On a team level, xG is often used to assess the quality of the goal scoring opportunities that a team creates and concedes. That is, itโ€ฆ

We can use xG to compute post-hoc win-draw-loss probabilities.

Our new blogpost shows MCMC's estimates of these probabilities are unstable, computing them exactly is faster than approximating them, and MCMC's runtime strongly depends on its implementation.

dtai.cs.kuleuven.be/sports/blog/...

11.09.2025 11:34 โ€” ๐Ÿ‘ 21    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Burger time! With a very fitting flipper thanks to @janvanhaaren.be and Giels

08.09.2025 17:25 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The Long Game by Leander Schaerlaeckens: 9780593653876 | PenguinRandomHouse.com: Books The gripping account of the U.S. menโ€™s national soccer teamโ€™s winding saga from obscurity to the global stage as they stand on the brink of a seminal World Cup in 2026. For almost half a century,...

๐Ÿšจ๐ŸšจYou can now pre-order my book, THE LONG GAME, on the United States men's national soccer team and its messy rise from total international irrelevance to, well, TBD!๐Ÿšจ๐Ÿšจ

I spoke to ~150 players/coaches/etc. and got fresh stories and unprecedented access!

www.penguinrandomhouse.com/books/722130...

02.09.2025 13:20 โ€” ๐Ÿ‘ 100    ๐Ÿ” 35    ๐Ÿ’ฌ 8    ๐Ÿ“Œ 12
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At OHL for womenโ€™s champions league qualifiers with the whole family

27.08.2025 17:58 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

3. Discuss how to foster such collaborations. We provide (anecdotal) advice, wrt possible pitfalls that may arise and how to avoid them when collaborating. We believe joint events can help facilitate collaborations. This paper arose out of discussions Sigrid and I had at such an event. 4/4

20.08.2025 06:30 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

2. Highlight emerging trends in computational research on sports both from a methodological and task perspective.

Tackling these problems requires combining sports & computational expertise. I.e., deeper collaborations between sports and computational researchers will be essential.

3 / 4

20.08.2025 06:27 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

1. Overview historically prominent lines of work in computational approaches (e.g., AI/ML/Statistics) to analyzing tactics in soccer.

Hopefully, this can serve as an introduction for those wanting to learn about the area but many not know where to look for relevant publications.

2 / 4

20.08.2025 06:25 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0