Mystery Readers International tarafından verilen En İyi Polisiye Roman ödülleridir. Aynı zamanda Kısa Hikaye, İnceleme ve Sue Feder Tarihi Polisiye dallarında da verilen ödül, adını T.S. Eliot'ın "The Mystery Cat" şiirinden alır.
| YIL | EN İYİ ROMAN | EN İYİ İLK ROMAN | EN İYİ İNCELEME |
| 2023 | A World of Curiosities - Louise Penny | Hizmetçi - Nita Prose | The Life of Crime: Detecting the History of Mysteries and Their Creators - Martin Edwards |
| 2022 | Ustura Gözyaşları - S.A. Cosby | Arsenic and Adobo - Mia P. Manansala | How to Write a Mystery: A Handbook from Mystery Writers of America by MWA with editors Lee Child and Laurie R. King |
| 2021 | Blacktop Wasteland - S.A. Cosby | Winter Counts - David Heska Wanbli Weiden | H.R.F. Keating: A Life of Crime - Sheila Mitchell |
| 2020 | Zincir - Adrian McKinty | One Night Gone - Tara Laskowski | Hitchcock and the Censors - John Billheimer |
| 2019 | November Road - Lou Berney | Dodging and Burning - John Copenhaver | The Real Lolita: The Kidnapping of Sally Horner and the Novel that Scandalized the World - Sarah Weinman |
| 2018 | Magpie Murders - Anthony Horowitz | The Lost Ones - Sheena Kamal | The Story of Classic Crime in 100 Books - Martin Edwards |
| 2017 | A Great Reckoning - Louise Penny | IQ - Joe Ide | Sara Paretsky: A Companion to the Mystery Fiction - Margaret Kinsman |
| 2016 | The Long and Faraway Gone - Lou Berney | Past Crimes - Glen Erik Hamilton | The Golden Age of Murder: The Mystery of the Writers Who Invented the Modern Detective Story - Martin Edwards |
| 2015 | The Killer Next Door - Alex Marwood | Invisible City - Julia Dahl | Writes of Passage: Adventures on the Writer’s Journey edited - Hank Phillippi Ryan |
| 2014 | Merhametin Kıyısında - William Kent Krueger | A Killing at Cotton Hill - Terry Shames | The Hour of Peril: The Secret Plot To Murder Lincoln Before the Civil War - Daniel Stashower |
| 2013 | The Beautiful Mystery - Louise Penny | Don’t Ever Get Old - Daniel Friedman | Books To Die For: The World’s Greatest Mystery Writers on the World’s Greatest Mystery Novels - John Connolly and Declan Burke |
| 2012 | Claire DeWitt and the City of the Dead - Sara Gran | All Cry Chaos - Leonard Rosen | The Sookie Stackhouse Companion - Charlaine Harris |
| 2011 | Sessiz Kalan - Louise Penny | Rogue Island - Bruce DeSilva | Agatha Christie'nin Gizli Defterleri (Elli Yıldır Saklı Kalan Gizemler) - John Curran |
| 2010 | Tower - Ken Bruen ve Reed F Coleman | Bir Tuhaf Turta Davası - Alan Bradley |
Talking About Detective Fiction - P. D. James |
| 2009 | Ölüm Silüetleri - Deborah Crombie | Ejderha Dövmeli Kız - Stieg Larsson |
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| 2008 |
Histeri - Laura Lippman |
Ormanın Derinliklerinde Bir Şey Var - Tana French |
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| 2007 | Bakire - Nancy Pickard |
Mr. Clarinet - Nick Stone |
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| 2006 | Güneşin Karanlığında - Michael Connelly |
Ahlaksız - Brian Freeman |
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| 2005 | The Killing of the Tinkers - Ken Bruen |
Dating Dead Men - Harley Jane Kozak |
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| 2004 | The House Sitter - Peter Lovesey |
Maisie Dobbs - Jacqueline Winspear |
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| 2003 | Winter and Night - S. J. Rozan |
In the Bleak Midwinter - Julia Spencer-Fleming |
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| 2002 | Folly - Laurie King |
Open Season - C.J. Box |
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| 2001 | A Place of Execution - Val McDermid |
Kağıt Komploları - David Liss |
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| 2000 | The Flower Master - Sujata Massey |
Inner City Blues - Paula Woods |
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| 1999 | Kan Bağı - Michael Connelly |
Sympathy for the Devil - Jerrilyn Farmer |
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| 1998 | Kemiklerin Fısıltısı - Deborah Crombie |
Dead Body Language - Penny Warner |
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| 1997 | Bloodhounds - Peter Lovesey |
Death in Little Tokyo - Dale Furutani |
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| 1996 | Under the Beetle's Cellar - Mary Willis Walker |
The Strange Files of Fremont Jones - Dianne Day |
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| 1995 | She Walks These Hills - Sharyn McCrumb |
Do Unto Others - Jeff Abbott |
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| 1994 | Heykeltıraş - Minette Walters |
Death Comes as Epiphany - Sharan Newman |
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| 1993 | Bootlegger's Daughter - Margaret Maron |
Blanche on the Lam - Barbara Neely |
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| 1992 | I.O.U. - Nancy Pickard |
Murder on the Iditarod Trail - Sue Henry Zero at the Bone - Mary Willis Walker |
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| 1991 | If I Ever Return Hometty Peggy-O - Sharyn McCrumb |
Otopsi - Patricia Cornwell |
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| 1990 | A Little Class on Murder - Carolyn Hart |
Grime and Punishment - Jill Churchill |
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| 1989 | Kiss - John Lutz |
The Killings at Badger's Drift - Caroline Graham |
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| 1988 | Marriage is Murder - Nancy Pickard |
The Monkey's Raincoat - Robert Crais |
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| 1987 | A Taste for Death - P.D. James |
The Ritual Bath - Faye Kellerman A Case of Loyalties - Marilyn Wallace |