Tootfinder

New Post: Players! Welcome to the 4th Annual EFF Benefit Poker Tournament at Defcon 33! https://www.tarah.org/2025/08/08/players-welcome-to-the-4th-annual-eff-benefit-poker-tournament-at-defcon-33

SKATE, a Scalable Tournament Eval: Weaker LLMs differentiate between stronger ones using verifiable challenges
Dewi S. W. Gould, Bruno Mlodozeniec, Samuel F. Brown
https://arxiv.org/abs/2508.06111

SKATE, a Scalable Tournament Eval: Weaker LLMs differentiate between stronger ones using verifiable challenges
Evaluating the capabilities and risks of foundation models is paramount, yet current methods demand extensive domain expertise, hindering their scalability as these models rapidly evolve. We introduce SKATE: a novel evaluation framework in which large language models (LLMs) compete by generating and solving verifiable tasks for one another. Our core insight is to treat evaluation as a game: models act as both task-setters and solvers, incentivized to create questions which highlight their own s…

Only a year until the start of the next men's world cup! We've got 365 days (plus the tournament itself) to watch FIFA sink to new lows as it works hard to please its authoritarian (majority) host, all the while lining its pockets and those of its officials. Fans will once again pass the time desperately applying the sausage principle - don't ask how it's made - to the largest sporting event on the planet.

Paolo Banchero gets paid; why the NCAA Tournament field should stay at 68; Wimbledon shocker

https://www.cbssports.com/nba/news/paolo-b

Google unveils Kaggle Game Arena, a benchmarking platform where AI models compete head-to-head in strategic games, starting with a chess tournament this week (Mike Wheatley/SiliconANGLE)
https://siliconangle.com/2025/08/04/go

Google's Kaggle to host AI chess tournament to evaluate leading AI models' reasoning skills - SiliconANGLE
Google's Kaggle to host AI chess tournament to evaluate leading AI models' reasoning skills - SiliconANGLE

NOTE THE VENUE CHANGE #DEFCON Folks! the @… 4th annual poker benefit tournament starts at high noon Friday August 8th at the Planet Hollywood

A directed Andr\'asfai-Erd\H{o}s-S\'os theorem and chromatic profiles of oriented cycles
Yisai Xue
https://arxiv.org/abs/2509.07760 https://arxiv.o…

A directed Andrásfai-Erdős-Sós theorem and chromatic profiles of oriented cycles
The chromatic profile of a digraph $H$, denoted by $δ_χ^{+}(H,k)$, is the infimum $d$ such that any $H$-free digraph $D$ on $n$ vertices with minimum out-degree $δ^{+}(D) \ge dn$ must be $k$-colorable. We determine the exact chromatic profile for several fundamental classes of digraphs. Our main result is a directed analogue of the Andrásfai-Erdős-Sós theorem, stating that $δ_χ^{+}(T_r, r-1)=\frac{3 r-7}{3 r-4}$, where $T_r$ is the transitive tournament on $r$ vertices. We then determin…

Once prided as the ‘people’s slam’, New York’s major tennis tournament now doubles as a lifestyle carnival
where attending is no longer just about watching, but about being seen watching
https://www.theguardian.com/sport/2025/sep

NCAA Tournament remains at 68 teams ... for now; Texas tops preseason Coaches Poll

https://www.cbssports.com/college-basketball/news/ncaa…

It's end-of-the-season tournament time and the sportsball team I coach will be playing 2 to 3 games in the next 24 hours and up to 6 games over the weekend. I'm already exhausted and I'm only just putting on my uniform.

US Open broadcasters have been asked not to show any negative crowd reactions to Donald Trumpat Sunday’s men’s final.
The president is expected to attend the match between Jannik Sinner and Carlos Alcaraz in New York, with security at Flushing Meadows being heightened in preparation.
Trump used to be a regular visitor to the US Open but has not been to the tournament since 2015, when he was booed by spectators.
An email sent to broadcasters by organisers reveals that the 79-…

Shore Conference boys and girls Athlete of the Year Tournament: Vote in the finals https://www.app.com/story/sports/high-school/2025/08/12/vote-nj-shore-boys-and-girls-athlete-of-the-year-tournament-poll/85508096…

Netflix acquires the Japanese media rights to carry the 2026 World Baseball Classic, marking the first time it will stream a live event in Japan (Associated Press)
https://apnews.com/article/world-baseball-classic-netflix-japan-3ca47c79a174e31…

Netflix wins Japanese media rights for 2026 World Baseball Classic
Netflix has secured the Japanese media rights for next year's World Baseball Classic, marking its first live event it will stream in Japan. The platform will broadcast all 47 games of the tournament. Team Japan is the defending champion, having won in 2023. Previously, a consortium including Amazon Prime Video held these rights. The sixth edition of the tournament will feature 20 teams competing in four first-round pools in Tokyo, San Juan, Houston, and Miami. It starts on March 5, with the fin…

The two PK saves (plus a PK miss) were loud & shiny, but Hampton was quietly heroic throughout the tournament. In the final, she prevented 1.35 goals, allowing 1 goal on 2.35 xG.
In the knockout rounds:
0.73 goals prevented against Italy
1.33 goals prevented against Sweden
You can make a case for Kelly or Agyemang as player of the tournament, but for me… Hampton.
And to be candid, I doubted throughout. I thought she spills too many rebounds. 🤷‍♂️

🇺🇦 #NowPlaying on KEXP's #MiddayShow
The Weakerthans:
🎵 Tournament of Hearts
#TheWeakerthans
https://theweakerthans.bandcamp.com/track/tournament-of-hearts
https://open.spotify.com/track/1pkH2oFavgoVpxmXO9ylze

№ 23 Carter Meshanic (whose brother Hunter is also on the team) of the William Smith Senators tries to get the ball past № 14 Alex Penders 6' 5'' of the IC Bombers
#photo #photography #sports

Idee für ein Spiel: Unreal Tournament meets BattleBit. #GameIdea #GameIdeas #unrealrournament
Die Optik von

Ramsey numbers of digraphs with local edge structure
Domagoj Brada\v{c}, Patryk Morawski, Benny Sudakov, Yuval Wigderson
https://arxiv.org/abs/2509.05055 https://

Ramsey numbers of digraphs with local edge structure
One of the classical topics in graph Ramsey theory is the study of which $n$-vertex graphs have Ramsey numbers that are linear in $n$. In this paper, we consider this problem in the context of directed graphs. The oriented Ramsey number of a digraph $G$ is the smallest integer $N$ such that every $N$-vertex tournament contains a copy of $G$. We prove that every bounded-degree acyclic digraph with a ``local edge structure'' has a linear oriented Ramsey number. More precisely, we say that a dig…

N.B.: I don’t know whether Wendy can play poker, but the one thing I KNOW about poker is that you NEVER play against someone who insists that they’re lousy. https://infosec.exchange/@wendynather/114955733770668316

The Satya of Satya’s Layoff Memo via Om Malik
https://om.co/2025/07/26/the-satya-of-satyas-layoff-memo/

Ark: An Open-source Python-based Framework for Robot Learning
Magnus Dierking, Christopher E. Mower, Sarthak Das, Huang Helong, Jiacheng Qiu, Cody Reading, Wei Chen, Huidong Liang, Huang Guowei, Jan Peters, Quan Xingyue, Jun Wang, Haitham Bou-Ammar
https://arxiv.org/abs/2506.21628

Ark: An Open-source Python-based Framework for Robot Learning
Robotics has made remarkable hardware strides-from DARPA's Urban and Robotics Challenges to the first humanoid-robot kickboxing tournament-yet commercial autonomy still lags behind progress in machine learning. A major bottleneck is software: current robot stacks demand steep learning curves, low-level C/C++ expertise, fragmented tooling, and intricate hardware integration, in stark contrast to the Python-centric, well-documented ecosystems that propelled modern AI. We introduce ARK, an open-so…

Development of soft and hard skills of high-school students via Young Physicists' Tournament
Sergej Faleti\v{c}, Assen Kyuldjiev, Thomas Lindner, Dorottya Schnider, \'Eva Izsa, Mih\'aly H\"om\"ostrei, P\'eter Jenei, Boyka Aneva, Daniela D. Ivanova, Hynek N\v{e}mec, Franti\v{s}ek Kundracik, Martin Plesch
https://ar…

Development of soft and hard skills of high-school students via Young Physicists' Tournament
The Young Physicists' Tournament (YPT) inspires high-school students to immerse themselves into an inquiry process closely resembling the real physics research. Using questionnaires' replies from the students and their teachers engaged in YPT, we investigated the perception of teachers and students on how the preparation for YPT contributes to the development of hard skills (physics content knowledge, mathematics, modelling...) and soft skills (communication, team work, organization...) of the …

Section 7 high school boys basketball tournament 2025 brackets, teams, schedule https://www.sportingnews.com/us/high-school/boys-basketball/news/section-7-high-school-…

Robust Tournaments
Mikhail Drugov, Dmitry Ryvkin
https://arxiv.org/abs/2507.16348 https://arxiv.org/pdf/2507.16348

Robust Tournaments
We characterize robust tournament design -- the prize scheme that maximizes the lowest effort in a rank-order tournament where the distribution of noise is unknown, except for an upper bound, $\bar{H}$, on its Shannon entropy. The robust tournament scheme awards positive prizes to all ranks except the last, with a distinct top prize. Asymptotically, the prizes follow the harmonic number sequence and induce an exponential distribution of noise with rate parameter $e^{-\bar{H}}$. The robust prize…

Satya Nadella's memo on Microsoft's layoffs portends the harsh reality that AI could make software companies more profitable while employing fewer people (Om Malik/On my Om)
https://om.co/2025/07/26/the-satya-of-satyas-layoff-memo/

The Satya of Satya’s Layoff Memo
“The tournament of today – a set-to between labor and monopoly. To paraphrase Sigmund Freud, sometimes a memo is not just a memo. That’s why we have to read between …

Trump says Club World Cup trophy will remain in Oval Office after tournament's end (Alexander Abnos/The Guardian)
https://www.theguardian.com/football/2025/jul/14/trump-says-club-world-cup-trophy-will-remain-in-oval-office-after-tournaments-end
http://www.memeorandum.com/250715/p52#a250715p52

Cyclic subsets of tournaments
Zach Hunter, Teng Liu, Aleksa Milojevi\'c, Benny Sudakov
https://arxiv.org/abs/2508.03634 https://arxiv.org/pdf/2508.0363…

Cyclic subsets of tournaments
Let $G$ be a Dirac graph, and let $S$ be a vertex subset of $G$, chosen uniformly at random. How likely is the induced subgraph $G[S]$ to be Hamiltonian? This question, proposed by Erdős and Faudree in 1996, was recently resolved by Draganić, Keevash and Müyesser, in the setting of graphs. In this paper, we study a similar question for tournaments -- if $T$ is a tournament of high minimum degree, how likely is it for a random induced subtournament of $T$ to be Hamiltonian? We prove an optima…

Eishockey-Stream - Red Bulls Salute: Die Halbfinal-Session jetzt LIVE #News #Nachrichten

Beyond Round Robin: Evaluating Competitiveness in UEFA's New Champions League Format
Karel Devriesere, Dries Goossens, Frits Spieksma
https://arxiv.org/abs/2508.08290 https:…

Beyond Round Robin: Evaluating Competitiveness in UEFA's New Champions League Format
Recently, UEFA changed the group stage of its international soccer competitions to an incomplete round robin tournament. Previously, teams were divided into groups, each playing a double round robin tournament with a resulting ranking table. In contrast, the new format has all teams competing in one league, producing a single ranking. We investigate the effect of the new format on the expected number of noncompetitive matches in the UEFA Champions League. A match is noncompetitive if the prize …

The sportsball tournament is over for us. We didn't make the semis but the team played really well. Coaching will wear you out, but this year has been great.

Fargo National Championship Tournament | Day 3 live updates, boys wrestling freestyle results https://www.beaconjournal.com/story/sports/high-school/wrestling/2025/07/16/fargo-wr…

Does the draw matter in an incomplete round-robin tournament? The case of the UEFA Champions League
L\'aszl\'o Csat\'o, Andr\'as Gyimesi, Dries Goossens, Karel Devriesere, Roel Lambers, Frits Spieksma
https://arxiv.org/abs/2507.15320

Does the draw matter in an incomplete round-robin tournament? The case of the UEFA Champions League
A fundamental reform has been introduced in the 2024/25 season of club competitions organised by the Union of European Football Associations (UEFA): the well-established group stage has been replaced by an incomplete round-robin format. In this format, the 36 teams are ranked in a single league table, but play against only a subset of the competitors. While this innovative change has highlighted that the incomplete round-robin tournament is a reasonable alternative to the standard design of all…

HEAS: Hierarchical Evolutionary Agent Simulation Framework for Cross-Scale Modeling and Multi-Objective Search
Ruiyu Zhang, Lin Nie, Xin Zhao
https://arxiv.org/abs/2508.15555 ht…

HEAS: Hierarchical Evolutionary Agent Simulation Framework for Cross-Scale Modeling and Multi-Objective Search
Hierarchical Evolutionary Agent Simulation (HEAS) is a Python framework that unifies layered agent-based modeling with evolutionary optimization and tournament evaluation in a single, reproducible workflow. HEAS represents models as hierarchies of lightweight processes ("streams") scheduled in deterministic layers that read and write a shared context, making cross-scale couplings explicit and auditable. A compact API and CLI-simulate, optimize, evaluate-expose single- and multi-objective evolut…

Fargo National Championship Tournament | Day 1 live updates for boys wrestling freestyle https://www.beaconjournal.com/story/sports/high-school/wrestling/2025/07/14/fargo-16u-junior-national-c…

Super-additive Cooperation in Language Model Agents
Filippo Tonini, Lukas Galke
https://arxiv.org/abs/2508.15510 https://arxiv.org/pdf/2508.15510

Super-additive Cooperation in Language Model Agents
With the prospect of autonomous artificial intelligence (AI) agents, studying their tendency for cooperative behavior becomes an increasingly relevant topic. This study is inspired by the super-additive cooperation theory, where the combined effects of repeated interactions and inter-group rivalry have been argued to be the cause for cooperative tendencies found in humans. We devised a virtual tournament where language model agents, grouped into teams, face each other in a Prisoner's Dilemma ga…

The Devil's Dung? Money as a mechanism of generalized reciprocity in human societies
Eduardo C. Ferraciolli, Francesco Renzini, Tanya V. Araujo, Flaminio Squazzoni
https://arxiv.org/abs/2506.20691

The Devil's Dung? Money as a mechanism of generalized reciprocity in human societies
St. Francis of Assisi (1181/82-1226) famously called money the devil's dung, and indeed money is often associated with greed, inequality, and corruption. Drawing on Nowak's five rules for the evolution of cooperation, we argue here that money promotes the formation of circuits of generalized reciprocity across human groups that are fundamental to social evolution. In an evolutionary tournament, we show that money exchange is an evolutionary stable strategy that promotes cooperation without rely…

“The goal is to host a tournament to show Switzerland how great women’s football is. All these people will jump from a low level of either not knowing or not watching it to, holy f*** this is great. If you do that with 20 to 30 per cent of society, it will be a cultural change for women and women’s football in this country for the future.“
https://www.nytimes.com/athletic/6460773/2025/07/01/switzerland-euro-2025-host/

Contesting fake news
Daniel Rehsmann, B\'eatrice Roussillon, Paul Schweinzer
https://arxiv.org/abs/2508.19837 https://arxiv.org/pdf/2508.19837

Contesting fake news
We model competition on a credence goods market governed by an imperfect label, signaling high quality, as a rank-order tournament between firms. In this market interaction, asymmetric firms jointly and competitively control the aggregate precision of a label ranking the competitors' qualities by releasing individual information. While the labels and the aggregated information they are based on can be seen as a public good guiding the consumers' purchasing decisions, individual firms have incen…

Proof of the linkage conjecture for highly connected tournaments
Jia Zhou, Jin Yan
https://arxiv.org/abs/2507.22651 https://arxiv.org/pdf/2507.22651…

Proof of the linkage conjecture for highly connected tournaments
A digraph $D$ is $k$-linked if for every $2k$ distinct vertices $ x_1,\ldots , x_k, y_1, \ldots , y_k$ in $D$, there exist $k$ pairwise vertex-disjoint paths $P_1,\ldots, P_k$ such that $P_i$ starts at $x_i$ and ends at $y_i$ for each $i\in [k]$. In 2021, Girão, Popielarz, and Snyder [Combinatorica 41 (2021) 815--837] conjectured that there exists a constant $C >0$ such that every $(2k+1)$-connected tournament with minimum out-degree at least $Ck$ is $k$-linked. In this paper, we disprove this…

Texans, Jaguars win HS Girls and 14U Boys finals at NFL FLAG Championships https://www.nfl.com/news/texans-jaguars-win-hs-girls-and-14u-boys-finals-at-nfl-flag-championships

"Fifa again under scrutiny for World Cup’s increased carbon footprint"
#Football #Sports #Climate #ClimateChange

CR tournaments
Jing Zeng, Lihua You, Xinghui Zhao
https://arxiv.org/abs/2508.07332 https://arxiv.org/pdf/2508.07332…

CR tournaments
The determinant of a tournament $T$ is defined as the determinant of the skew-adjacency matrix of $T$. For a positive odd integer $k$, let $\mathcal{D}_k$ be the set of tournaments whose all subtournaments have determinant at most $k^2$. Some existing results show that, for $k \in \{1,3,5\}$, a tournament $T \in \mathcal{D}_k \backslash \mathcal{D}_{k-2}$ ($T \in \mathcal{D}_1$ when $k=1$) if and only if $T$ is switching equivalent to a transitive blowup of $L_{k+1}$, where $L_{k+1}$ is a tourn…

Tune In: Texans High School Girls Flag Team Faces Dallas Cowboys for NFL Championship on ESPN https://www.houstontexans.com/news/tune-in-texans-high-school-girls-flag-team-faces-dallas-cowboys-for-nfl-championship-on-e…

On the Tur\'anability and tileability of oriented graphs
Igor Araujo, Zimu Xiang
https://arxiv.org/abs/2507.13267 https://arxiv.o…

On the Turánability and tileability of oriented graphs
An oriented graph $H$ is Turánable (resp. tileable) if there exist $n_0 \in \mathbb{N}$ such that every regular tournament on $n \ge n_0$ vertices contains a copy of $H$ (resp. a perfect $H$-tiling). We disprove a conjectured characterization of Turánable oriented graphs by DeBiasio, Han, Lo, Molla, Piga, and Treglown, show that there are Turánable oriented graphs which are not tileable, and provide a new example of tileable oriented graph.

Dynamic Graph-Based Forecasts of Bookmakers' Odds in Professional Tennis
Matthew J Penn, Jed Michael, Samir Bhatt
https://arxiv.org/abs/2508.15956 https://

Dynamic Graph-Based Forecasts of Bookmakers' Odds in Professional Tennis
Bookmakers' odds consistently provide one of the most accurate methods for predicting the results of professional tennis matches. However, these odds usually only become available shortly before a match takes place, limiting their usefulness as an analysis tool. To ameliorate this issue, we introduce a novel dynamic graph-based model which aims to forecast bookmaker odds for any match on any surface, allowing effective and detailed pre-tournament predictions to be made. By leveraging the high-q…

Hamilton decompositions of regular tripartite tournaments
Francesco Di Braccio, Joanna Lada, Viresh Patel, Yani Pehova, Jozef Skokan
https://arxiv.org/abs/2507.12460

Hamilton decompositions of regular tripartite tournaments
Kühn and Osthus conjectured in 2013 that regular tripartite tournaments are decomposable into Hamilton cycles. Somewhat surprisingly, Granet gave a simple counterexample to this conjecture almost 10 years later. In this paper, we show that the conjecture of Kühn and Osthus nevertheless holds in an approximate sense, by proving that every regular tripartite tournament admits an approximate decomposition into Hamilton cycles. We also study Hamilton cycle packings of directed graphs in the same …