gregstoll.com

Jump to

• Popular
• Recent
• Data
• Baseball
• Mathy
• Games
• Interactive
• Maps
• Interoperable
• Other
• All

• Popular:
  • Baseball win expectancy finder (linked from FiveThirtyEight (search for "eighth inning"), The Washington Post, and more!) and other baseball statistics - or see all baseball statistic calculators.
    Released Aug 2015
  • Float to Hex - A floating-point to hex converter.
    Updated Jan 2025, released Apr 2006
  • Katrina Information Map - Jonathan Mendez and I worked on www.scipionus.com, which had a map where people could post information about Hurricane Katrina. It got some media attention. (BBC, Wired, Forbes, New York Times) I'm hosting a backup copy with the original data.
    Released Sep 2005
  • Clue Solver - Enter information from the game Clue and the solver will deduce information and do simulations to show where the cards likely are.
    Updated Oct 2020, released Oct 2007
  • Mobile apps - My apps for Windows Phone, Windows 8, webOS, and Android
    Updated Jun 2021, released Jan 2010
  • Same-sex marriage map - Interactive map showing legality of same-sex marriage/civil unions in the United States.
    Updated Aug 2019, released Mar 2009
  • Wheel of Fortune Solver - Solve Wheel of Fortune puzzles!
    Released Sep 2021
• Recent:
  • Name My Color - Find common names for colors!
    Updated Aug 2026, released Jul 2020
  • MLB Triple Crown Leaders - See which players are in the running for the MLB Triple Crown.
    Released Aug 2026
  • Cryptogram Solver - Solve cryptogram words!
    Released Oct 2025
  • Wa-tor simulator - Watch the sharks eat the fish in this Wa-tor predator-prey simulation!
    Released Jun 2025
  • Float to Hex - A floating-point to hex converter.
    Updated Jan 2025, released Apr 2006
  • Division Race Probabilities - A short lesson in whether a team is likely to advance to the playoffs
    Released Jul 2024
  • Crossword Puzzle Solver - Solve crossword puzzle clues!
    Released Jun 2023
  • Dice Block Analysis in Super Mario Party - An analysis of which dice blocks are best in Super Mario Party
    Released May 2022
  • Wheel of Fortune Solver - Solve Wheel of Fortune puzzles!
    Released Sep 2021
  • MLB Division Race Charts - See division races in Major League Baseball!
    Released Jul 2021
  • Mobile apps - My apps for Windows Phone, Windows 8, webOS, and Android
    Updated Jun 2021, released Jan 2010
  • State Election Map - A map showing US presidential election results by state.
    Updated Dec 2020, released Feb 2019
  • Clue Solver - Enter information from the game Clue and the solver will deduce information and do simulations to show where the cards likely are.
    Updated Oct 2020, released Oct 2007
• Data:
  • Baseball win expectancy finder (linked from FiveThirtyEight (search for "eighth inning"), The Washington Post, and more!) and other baseball statistics - or see all baseball statistic calculators.
    Released Aug 2015
  • Wheel of Fortune Solver - Solve Wheel of Fortune puzzles!
    Released Sep 2021
  • MLB Division Race Charts - See division races in Major League Baseball!
    Released Jul 2021
  • Crossword Puzzle Solver - Solve crossword puzzle clues!
    Released Jun 2023
  • Cryptogram Solver - Solve cryptogram words!
    Released Oct 2025
  • Name My Color - Find common names for colors!
    Updated Aug 2026, released Jul 2020
  • State Election Map - A map showing US presidential election results by state.
    Updated Dec 2020, released Feb 2019
  • MLB Triple Crown Leaders - See which players are in the running for the MLB Triple Crown.
    Released Aug 2026
  • Benchmark analyzer - Automated analysis of benchmark data.
    Released Feb 2009
  • IsMyDataSignificant.com - A quick script to determine if a data set is significantly different than expected.
    Released Dec 2008
  • iTunes Rating Analysis - Have an iPod? Use iTunes to manage your music? Get an analysis of your favorite albums and bands!
    Released Nov 2007
  • Games Database - Searchable database of the games we own.
    Released Aug 2009
  • Congress Votes - A way of scoring US Representatives on their roll-call votes. My first project in Haskell!
    Released Apr 2007
  • Netflix Prize - My code for competing in the Netflix Prize.
    Released Nov 2006
• Baseball:
  • Baseball win expectancy finder (linked from FiveThirtyEight (search for "eighth inning"), The Washington Post, and more!) and other baseball statistics - or see all baseball statistic calculators.
    Released Aug 2015
  • MLB Division Race Charts - See division races in Major League Baseball!
    Released Jul 2021
  • MLB Triple Crown Leaders - See which players are in the running for the MLB Triple Crown.
    Released Aug 2026
  • Division Race Probabilities - A short lesson in whether a team is likely to advance to the playoffs
    Released Jul 2024
  • All 30 MLB team names, logos, mascots ranked! - A rating of all Major League Baseball team names, logos, and mascots.
    Released Oct 2015
• Mathy:
  • Float to Hex - A floating-point to hex converter.
    Updated Jan 2025, released Apr 2006
  • Clue Solver - Enter information from the game Clue and the solver will deduce information and do simulations to show where the cards likely are.
    Updated Oct 2020, released Oct 2007
  • probabilityToFriendlyString - Library in many languages for making probabilities more intuitive by converting them to odds (i.e. 72.3% becomes "5 in 7")
    Released Aug 2018
  • Dice Block Analysis in Super Mario Party - An analysis of which dice blocks are best in Super Mario Party
    Released May 2022
  • Division Race Probabilities - A short lesson in whether a team is likely to advance to the playoffs
    Released Jul 2024
  • Odds in Pandemic: The Cure of Curing a Disease with Dice - Calculating the odds of rolling high enough with non-standard dice.
    Released Mar 2018
  • Optimal TFS Gated Checkin Batching - How to optimally batch Microsoft's Team Foundation Server's gated checkins.
    Released Jul 2015
  • Probabilities in the game Camel Up (or Camel Cup) - Some probability calculations related to the game Camel Up (or Camel Cup).
    Released Jul 2015
  • World Cup: Advancing out of the Group Stage - Calculating how likely a team is to advance out of the World Cup group stage given their number of points.
    Released Aug 2013
  • Point values in the game "Target" - A numerical analysis of the target cards in the game Target, complete with a nice summary graph and chart.
    Released Jun 2008
  • Stock market returns - Visualizing the average annual returns of the S&P 500 over time.
    Released Jan 2011
  • Tournament Probabilities - A quick look at determining some intermediate probabilities for who will win a tournament.
    Released Oct 2016
  • IsMyDataSignificant.com - A quick script to determine if a data set is significantly different than expected.
    Released Dec 2008
  • Super Mario Bros. (board game) Solver - Quick script to find the probability of winning the Super Mario Bros. board game on the first turn.
    Released Jan 2008
  • Hat Problem Strategies - Analysis of how to choose a good strategy for the hat problem, using techniques in Artificial Intelligence.
    Released May 2007
  • Determining home energy usage from temperature - using R to determine how our energy usage varies based on the temperature outside.
    Released Nov 2009
  • Period of Fibonacci Numbers in Varying Moduli - My high school science fair project, which won awards at the Texas State Science Fair.
    Released Jun 2006
  • Austin Math Circle talk - I gave a talk to the Austin Math Circle about math in computer science.
    Released Dec 2008
  • Farkle Probabilities - A quick MathML experiment to show some Farkle probabilities - I didn't get very far before realizing how difficult hand-coding MathML is.
    Released Apr 2006
• Games:
  • Clue Solver - Enter information from the game Clue and the solver will deduce information and do simulations to show where the cards likely are.
    Updated Oct 2020, released Oct 2007
  • Wheel of Fortune Solver - Solve Wheel of Fortune puzzles!
    Released Sep 2021
  • Crossword Puzzle Solver - Solve crossword puzzle clues!
    Released Jun 2023
  • Cryptogram Solver - Solve cryptogram words!
    Released Oct 2025
  • Dice Block Analysis in Super Mario Party - An analysis of which dice blocks are best in Super Mario Party
    Released May 2022
  • Odds in Pandemic: The Cure of Curing a Disease with Dice - Calculating the odds of rolling high enough with non-standard dice.
    Released Mar 2018
  • Probabilities in the game Camel Up (or Camel Cup) - Some probability calculations related to the game Camel Up (or Camel Cup).
    Released Jul 2015
  • Wa-tor simulator - Watch the sharks eat the fish in this Wa-tor predator-prey simulation!
    Released Jun 2025
  • Super Mario Bros. (board game) Solver - Quick script to find the probability of winning the Super Mario Bros. board game on the first turn.
    Released Jan 2008
• Interactive:
  • Same-sex marriage map - Interactive map showing legality of same-sex marriage/civil unions in the United States.
    Updated Aug 2019, released Mar 2009
  • Name My Color - Find common names for colors!
    Updated Aug 2026, released Jul 2020
  • State Election Map - A map showing US presidential election results by state.
    Updated Dec 2020, released Feb 2019
  • Wa-tor simulator - Watch the sharks eat the fish in this Wa-tor predator-prey simulation!
    Released Jun 2025
  • Pretty Pictures from Genetic Algorithms - Create and breed together pretty pictures.
    Released Jul 2007
• Maps:
  • Katrina Information Map - Jonathan Mendez and I worked on www.scipionus.com, which had a map where people could post information about Hurricane Katrina. It got some media attention. (BBC, Wired, Forbes, New York Times) I'm hosting a backup copy with the original data.
    Released Sep 2005
  • Same-sex marriage map - Interactive map showing legality of same-sex marriage/civil unions in the United States.
    Updated Aug 2019, released Mar 2009
  • Population Centers - Find where to put things close to most of the US's population.
    Released Apr 2020
  • State Election Map - A map showing US presidential election results by state.
    Updated Dec 2020, released Feb 2019
• Interoperable:
  • Making GLSlideshow Show Comments - Making GLSlideshow show the comments from pictures in my gallery.
    Released Aug 2009
  • LJ for WebOS - A LiveJournal client for WebOS devices (Palm Pre, Pixi, etc.), which used to be available on the Palm App Catalog.
    Released Jan 2010
• Other:
  • Population Centers - Find where to put things close to most of the US's population.
    Released Apr 2020
  • Log Colorer - Coloring pointer values in a log and optionally replacing them with descriptions.
    Released Sep 2009
  • ThumbnailCopy Firefox Extension - A very simple Firefox extension to allow copying HTML from a thumbnail image.
    Updated Nov 2017, released Jan 2009
  • TODO list - A TODO list using AJAX. The list is roughly based on the principles of Getting Things Done(GTD).
    Released Feb 2006
• All:
  • Baseball win expectancy finder (linked from FiveThirtyEight (search for "eighth inning"), The Washington Post, and more!) and other baseball statistics - or see all baseball statistic calculators.
    Released Aug 2015
  • Float to Hex - A floating-point to hex converter.
    Updated Jan 2025, released Apr 2006
  • Katrina Information Map - Jonathan Mendez and I worked on www.scipionus.com, which had a map where people could post information about Hurricane Katrina. It got some media attention. (BBC, Wired, Forbes, New York Times) I'm hosting a backup copy with the original data.
    Released Sep 2005
  • Clue Solver - Enter information from the game Clue and the solver will deduce information and do simulations to show where the cards likely are.
    Updated Oct 2020, released Oct 2007
  • Mobile apps - My apps for Windows Phone, Windows 8, webOS, and Android
    Updated Jun 2021, released Jan 2010
  • Same-sex marriage map - Interactive map showing legality of same-sex marriage/civil unions in the United States.
    Updated Aug 2019, released Mar 2009
  • Wheel of Fortune Solver - Solve Wheel of Fortune puzzles!
    Released Sep 2021
  • MLB Division Race Charts - See division races in Major League Baseball!
    Released Jul 2021
  • Crossword Puzzle Solver - Solve crossword puzzle clues!
    Released Jun 2023
  • Cryptogram Solver - Solve cryptogram words!
    Released Oct 2025
  • Name My Color - Find common names for colors!
    Updated Aug 2026, released Jul 2020
  • Population Centers - Find where to put things close to most of the US's population.
    Released Apr 2020
  • State Election Map - A map showing US presidential election results by state.
    Updated Dec 2020, released Feb 2019
  • MLB Triple Crown Leaders - See which players are in the running for the MLB Triple Crown.
    Released Aug 2026
  • probabilityToFriendlyString - Library in many languages for making probabilities more intuitive by converting them to odds (i.e. 72.3% becomes "5 in 7")
    Released Aug 2018
  • Dice Block Analysis in Super Mario Party - An analysis of which dice blocks are best in Super Mario Party
    Released May 2022
  • Division Race Probabilities - A short lesson in whether a team is likely to advance to the playoffs
    Released Jul 2024
  • Odds in Pandemic: The Cure of Curing a Disease with Dice - Calculating the odds of rolling high enough with non-standard dice.
    Released Mar 2018
  • All 30 MLB team names, logos, mascots ranked! - A rating of all Major League Baseball team names, logos, and mascots.
    Released Oct 2015
  • Making GLSlideshow Show Comments - Making GLSlideshow show the comments from pictures in my gallery.
    Released Aug 2009
  • Optimal TFS Gated Checkin Batching - How to optimally batch Microsoft's Team Foundation Server's gated checkins.
    Released Jul 2015
  • Probabilities in the game Camel Up (or Camel Cup) - Some probability calculations related to the game Camel Up (or Camel Cup).
    Released Jul 2015
  • World Cup: Advancing out of the Group Stage - Calculating how likely a team is to advance out of the World Cup group stage given their number of points.
    Released Aug 2013
  • Point values in the game "Target" - A numerical analysis of the target cards in the game Target, complete with a nice summary graph and chart.
    Released Jun 2008
  • Wa-tor simulator - Watch the sharks eat the fish in this Wa-tor predator-prey simulation!
    Released Jun 2025
  • Stock market returns - Visualizing the average annual returns of the S&P 500 over time.
    Released Jan 2011
  • LJ for WebOS - A LiveJournal client for WebOS devices (Palm Pre, Pixi, etc.), which used to be available on the Palm App Catalog.
    Released Jan 2010
  • Log Colorer - Coloring pointer values in a log and optionally replacing them with descriptions.
    Released Sep 2009
  • Benchmark analyzer - Automated analysis of benchmark data.
    Released Feb 2009
  • Tournament Probabilities - A quick look at determining some intermediate probabilities for who will win a tournament.
    Released Oct 2016
  • ThumbnailCopy Firefox Extension - A very simple Firefox extension to allow copying HTML from a thumbnail image.
    Updated Nov 2017, released Jan 2009
  • IsMyDataSignificant.com - A quick script to determine if a data set is significantly different than expected.
    Released Dec 2008
  • Super Mario Bros. (board game) Solver - Quick script to find the probability of winning the Super Mario Bros. board game on the first turn.
    Released Jan 2008
  • Pretty Pictures from Genetic Algorithms - Create and breed together pretty pictures.
    Released Jul 2007
  • Hat Problem Strategies - Analysis of how to choose a good strategy for the hat problem, using techniques in Artificial Intelligence.
    Released May 2007
  • Determining home energy usage from temperature - using R to determine how our energy usage varies based on the temperature outside.
    Released Nov 2009
  • iTunes Rating Analysis - Have an iPod? Use iTunes to manage your music? Get an analysis of your favorite albums and bands!
    Released Nov 2007
  • Period of Fibonacci Numbers in Varying Moduli - My high school science fair project, which won awards at the Texas State Science Fair.
    Released Jun 2006
  • Games Database - Searchable database of the games we own.
    Released Aug 2009
  • Congress Votes - A way of scoring US Representatives on their roll-call votes. My first project in Haskell!
    Released Apr 2007
  • Netflix Prize - My code for competing in the Netflix Prize.
    Released Nov 2006
  • Austin Math Circle talk - I gave a talk to the Austin Math Circle about math in computer science.
    Released Dec 2008
  • TODO list - A TODO list using AJAX. The list is roughly based on the principles of Getting Things Done(GTD).
    Released Feb 2006
  • Farkle Probabilities - A quick MathML experiment to show some Farkle probabilities - I didn't get very far before realizing how difficult hand-coding MathML is.
    Released Apr 2006