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Shamrock Open is an AHA/BJCP sanctioned event and open to all homebrewers with the primary goal to provided applicable feedback for Brewers to make better homecrafted beer. 


Entries will be evaluated using the 2021 BJCP Style Guidelines.

All Styles in the 34 Beer Categories of the BJCP Style Guidelines will be accepted. Mead and Cider Categories will not be accepted.

Entries will be submitted by Style and evaluated based on that specific Style Guideline.

Styles will be assigned to Flights based Style/Category entry count, Style Family and Judge resources. Categories with a low entry count (<5) will be combined with a Category of similar styles (if at all possible). A Category with a high entry count will be conducted under a mini-BOS format and/or spread across multiple sub-category Flights. 


The Judge Director will assign Judge Pairs and Flight assignments, matching experience levels and individual strengths and preferences.

Judge Pairs will individually evaluate, discuss, notate and score each Entry. Entries in a Flight will be ranked by their average Judge Pair score. Each flight will have at least one BJCP judge.

Best of Show evaluation will be conducted by five senior BJCP Judges immediately following the conclusion of the second session.

Judge and Steward experience points will be reported to the BJCP.

Results and Awards

See 'INFO - Awards' section


BJCP 2021 Judging Styles

If a style's name is hyperlinked, it has specific entry requirements. Select or tap on the name to view the subcategory's requirements.

1A American Light Lager1B American Lager1C Cream Ale
1D American Wheat Beer2A International Pale Lager2B International Amber Lager
2C International Dark Lager3A Czech Pale Lager3B Czech Premium Pale Lager
3C Czech Amber Lager3D Czech Dark Lager4A Munich Helles
4B Festbier4C Helles Bock5A German Leichtbier
5B Kölsch5C German Helles Exportbier5D German Pils
6A Märzen6B Rauchbier6C Dunkels Bock
7A Vienna Lager7B Altbier8A Munich Dunkel
8B Schwarzbier9A Doppelbock 9B Eisbock
9C Baltic Porter10A Weissbier10B Dunkels Weissbier
10C Weizenbock 11A Ordinary Bitter11B Best Bitter
11C Strong Bitter12A British Golden Ale12B Australian Sparkling Ale
12C English IPA13A Dark Mild13B British Brown Ale
13C English Porter14A Scottish Light14B Scottish Heavy
14C Scottish Export15A Irish Red Ale15B Irish Stout
15C Irish Extra Stout16A Sweet Stout16B Oatmeal Stout
16C Tropical Stout16D Foreign Extra Stout17A British Strong Ale
17A1 Burton Ale17B Old Ale17C Wee Heavy
17D English Barley Wine18A Blonde Ale18B American Pale Ale
19A American Amber Ale19B California Common19C American Brown Ale
20A American Porter20B American Stout20C Imperial Stout
21A American IPA21B Specialty IPA 21B1 Belgian IPA
21B2 Black IPA 21B3 Brown IPA 21B4 Red IPA
21B5 Rye IPA 21B6 White IPA 21B7 Brut IPA
21C Hazy IPA22A Double IPA22B American Strong Ale
22C American Barleywine22D Wheatwine23A Berliner Weisse
23B Flanders Red Ale23C Oud Bruin23D Lambic
23E Gueuze23F Fruit Lambic 23G Gose
24A Witbier24B Belgian Pale Ale24C Bière de Garde
25A Belgian Blond Ale25B Saison 25C Belgian Golden Strong Ale
26A Belgian Single26B Belgian Dubbel26C Belgian Tripel
26D Belgian Dark Strong Ale27A Historical Beer 27A1 Kellerbier
27A2 Kentucky Common27A3 Lichtenhainer27A4 London Brown Ale
27A5 Piwo Grodziskie27A6 Pre-Prohibition Lager27A7 Pre-Prohibition Porter
27A8 Roggenbier27A9 Sahti28A Brett Beer
28B Mixed Fermentation Sour Beer 28C Wild Specialty Beer 28D Straight Sour Beer
29A Fruit Beer 29B Fruit and Spice Beer 29C Specialty Fruit Beer
29D Grape Ale 30A Spice, Herb, or Vegetable Beer 30B Autumn Seasonal Beer
30C Winter Seasonal Beer 30D Specialty Spice Beer 31A Alternative Grain Beer
31B Alternative Sugar Beer 32A Classic Style Smoked Beer 32B Specialty Smoked Beer
33A Wood-Aged Beer 33B Specialty Wood-Aged Beer 34A Commercial Specialty Beer
34B Mixed-Style Beer 34C Experimental Beer  


Number of Bottles Required Per Entry: 2

Judging Sessions and Dates

Monday Afternoon Session (Virtual)
Monday, March 27, 2023 8:00 PM, EDT

Tuesday Evening (Virtual)
Wednesday, March 29, 2023 8:00 PM, EDT

Friday Afternoon
Friday, March 31, 2023 12:00 PM, EDT

Friday Morning
Saturday, April 1, 2023 8:00 AM, EDT

Morning session
Saturday, April 1, 2023 8:30 AM, EDT

Afternoon session
Saturday, April 1, 2023 12:00 PM, EDT

Best of Show
Saturday, April 1, 2023 3:00 PM, EDT


Best of Show

1st, 2nd & 3rd place Best of Show Entries will receive a Shamrock Open XXVIII Best of Show Ribbon and Award.

One gold-medal winning homebrewer, from the beers advanced to the BOS round, will be offered the opportunity to brew their entry with Clouds Brewing, located in Raleigh NC.  Also, one gold-medal winning homebrewer, from the beers advanced to the BOS round, will be offered the opportunity to brew their entry with Hatchet Brewing Company, located in Southern Pines NC.  The winners will work with the head brewers to scale up their recipe and brew their beer on a commercial system and have it offered for sale on premises, and possibly other venues.  The entries selected will be announced within one week of the competition date and will be based not only on the quality of the entry, but also on its marketability and compatibility with the respective brewery's existing lineup.




1st, 2nd & 3rd place beers in each defined Category will receive a Shamrock Open XXVIII Ribbon and Coaster.

First Place Entries will advance to the BOS judging Session.

Announcement of Winners will take place shortly after conclusion of the BOS Judging session.

Competiton Results will be published here and on the Carboy Club website as soon as possible after the conclusion of the Awards Ceremony.

Brewer Scoresheets will be available on the Brewer’s Account Page when the Competition Results are published.

Ribbons and Awards will be mailed as soon as possible following the conclusion of the competition.

Additional prizes may be awarded to at the discretion of the Shamrock Organizer.

You do not need to be present.