{{short description|Canadian-American mathematician and Scrabble player}} {{Infobox scientist | image = Adam Logan.jpg | caption = Logan in 2007 | birth_place = Kingston, Ontario, Canada | fields = Mathematics | workplaces = Tutte Institute | education = Harvard University (PhD, 1999) <br />Harvard University (AM, 1996)<br />Princeton University (AB, 1995) | thesis_title = Moduli Spaces of Curves with Marked Points | thesis_year = 1999 | doctoral_advisor = Joseph Daniel Harris | awards = Putnam Fellow | website = https://sites.google.com/view/adamlogan/home }}

'''Adam Logan''' is a Canadian-American mathematician and tournament ''Scrabble'' player. His work is primarily in arithmetic geometry and algebraic geometry. In ''Scrabble'', he has won the World Scrabble Championship in 2005 and 2025.

== Early life, education, and personal life == Logan is the son of George Logan and Michal Ben-Gera, who both described Logan as mathematically gifted as a child. He attended the Lisgar Collegiate Institute.<ref name=":0">{{Cite news |title=How an Ottawa mathematician became a two-time Scrabble world champion |url=https://ottawacitizen.com/news/ottawa-scrabble-champion |archive-url=http://web.archive.org/web/20251230190200/https://ottawacitizen.com/news/ottawa-scrabble-champion |archive-date=2025-12-30 |access-date=2026-02-21 |work=ottawacitizen |language=en}}</ref> He was a Putnam Fellow in 1992 and 1993.<ref>{{Cite journal|last1=Klosinski|first1=Leonard F.|last2=Alexanderson|first2=Gerald L.|last3=Larson|first3=Loren C.|date=1993|title=The Fifty-Third William Lowell Putnam Mathematical Competition|journal=The American Mathematical Monthly|volume=100|issue=8|pages=755–767|doi=10.2307/2324782|issn=0002-9890|jstor=2324782}}</ref> He completed his first degree, in mathematics, at Princeton University in 1995, graduating at the top of his class and received a PhD from Harvard University in 1999.<ref name=":0" /><ref name="Globe and Mail 2nd Championship" /><ref name=":1" />

== ''Scrabble'' == Logan competed in his first ''Scrabble'' tournament in 1985, at age 10, in which he placed fourth; he was only entered into the tournament due to an odd player count. He first played using the wordlist of the ''Official Scrabble Players Dictionary'', first playing with the Collins Scrabble Words in the early 2000s, while working in England.<ref name=":0" />

Logan is one of three players who have won the World Scrabble Championship more than once.<ref name="Globe and Mail 2nd Championship">{{cite news |last=Klinkenberg |first=Marty |date=19 November 2025 |title=Ottawa mathematician wins his second Scrabble world championship in 20 years |url=https://www.theglobeandmail.com/sports/article-scrabble-world-championship-ottawa-mathematician/ |access-date=20 November 2025 |publisher=The Globe and Mail |language=en-CA}}</ref> In 2005, he won the championship against Pakorn Nemitrmansuk of Thailand, 3–0 in the final,<ref>{{Cite web |title=Standings: Round 24 |url=http://www.wscgames.com/2005/build/standing/1/24.html |access-date=2019-10-28 |website=www.wscgames.com}}</ref> and in 2025, won against Nigel Richards of New Zealand, 4–2 in the final.<ref>{{Cite web |title=WESPAC 2025 - WESPA Scrabble Championship in Ghana &#124; International Tournament |url=https://wespacevent.ghanascrabble.com/categories/1/standings}}</ref>

Since his competitive career began in 1985, Logan has played nearly 2700 tournament games, compiling a winning percentage of 69.5%, and earning around $103,000 in prize money.<ref>{{cite web |url=http://www.cross-tables.com/results.php?p=3522 |title = Adam Logan - Recent Tourneys - cross-tables.com}}</ref>

== Mathematics == He completed his postdoctoral work at McGill University between 2002 through 2003.<ref name="Globe and Mail 2nd Championship" /><ref name=":1" /> From 2003 to 2005, he worked in England.<ref name=":0" /> From 2008 to 2009, he was employed as a Quantitative Analyst at D. E. Shaw & Co. in New York City. He also worked for the Tutte Institute for Mathematics and Computing in Ottawa, Ontario, Canada.<ref name=":1">{{cite arXiv |last1 = Logan |first1=A |last2=Molloy |first2=M |last3=Pralat |first3=P |date=28 June 2018 |title=A variant of the Erdos-Renyi random graph process |eprint= 1806.10975 |class=math.CO}}</ref><ref name="Globe and Mail 2nd Championship" />

==References== {{Reflist}}

==External links== *{{cross-tables player|pid=3522}} *[https://web.archive.org/web/20070927224011/http://www.scrabble-assoc.com/cgi-bin/player.pl?given=Adam&surname=Logan&exact=1 Adam Logan's NSA player profile] *[http://www.math.uwaterloo.ca/~a5logan/math/index.html Adam Logan's professional home page] (legacy; no longer in this position) *{{MathGenealogy|id=42401}}

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{{DEFAULTSORT:Logan, Adam}} Category:Living people Category:Canadian mathematicians Category:Canadian Scrabble players Category:Harvard University alumni Category:Number theorists Category:Scientists from Ontario Category:Sportspeople from Kingston, Ontario Category:Princeton University alumni Category:World Scrabble Championship winners Category:International Mathematical Olympiad participants Category:Lisgar Collegiate Institute alumni Category:Putnam Fellows Category:D. E. Shaw & Co. people Category:Year of birth missing (living people)