| Singletrack Copper Ale | Boulder Beer Company | American Pale Ale | 5.0% |
| Singletrack Copper Ale | Denver ChopHouse and Brewery | American Pale Ale | 5.6% |
| Singular Realm | Amalgam | American Imperial Stout | 14.3% |
| Singular Rhythms | Modern Times | Saison | 5.5% |
| Singular Rhythms w/ Boysenberry & Blackcurrant | Modern Times | Saison | 5.5% |
| Singular Rhythms W/ Gewürztraminer Grape Must & Nelson Hops | Modern Times | Saison | 6.0% |
| Singularity | Driftwood Brewery | Russian Imperial Stout | 14.0% |
| Singularity | Lehe Pruulikoda | Russian Imperial Stout | 18.0% |
| Singularity | Stubborn Beauty Brewing Company | American Imperial Stout | 12.0% |
| Singularity | Superior Lakes Mead | | 16.0% |
| Singularity | Urban Family Brewing | | 8.4% |
| Singularity: 1792FP | Moksa Brewing Company | | |
| Sinister | 18th Street Brewery | Imperial IPA | 9.5% |
| Sinister 7 | Double Mountain Brewery & Taproom | American Brown Ale | 10.8% |
| Sinister Black IPA | 10 Barrel Brewing Co. | | 5.4% |