| 01 Tandem |
| 100 Open Tandem |
| 100-Miler Tandem |
| 100K Tandem |
| 12-Hour Tandem |
| 12/24-Hour Tandem |
| 1_Tandem |
| 200 Open Tandem |
| 24-Hour Tandem |
| 62-Miler Tandem |
| 62.5-Mile Tandem |
| Abomination Tandem |
| Alpine Tandem |
| Big Loop Tandem |
| Big Loop Tandem 20 |
| Box Canyon Tandem |
| Exhibition Tandem |
| Exhibition Tandem Kilo |
| Four Tandem |
| Half Hug Tandem |
| Kiahanie Tandem |
| Male/Male Tandem |
| Men Tandem |
| Mixed Tandem |
| Mountain - Tandem |
| O01) Tandem (All) |
| Oo1) Tandem (All) |
| Open Tandem |
| Open Tandem - Swift Summit Nw 50 |
| Open Tandem 100 |
| Open Tandem 200 |
| Relay Tandem |
| Relay Team, Tandem |
| Short Course Tandem |
| TT Tandem |
| TT-Tandem |
| Tandem |
| Tandem ($40 Total) |
| Tandem (22.8-Miles) |
| Tandem (All) |
| Tandem (All) 01 |
| Tandem (Price Is Per Person = $35/Team) |
| Tandem (Register Both Riders On Same Order) |
| Tandem - Abomination - Long Course |
| Tandem - Big Grinder |
| Tandem - Big Squatch |
| Tandem - Erik The Red - Long Course |
| Tandem - Gran Fondo |
| Tandem - Medio Fondo |
| Tandem - Medium Gravel |
| Tandem - Medium Grinder |
| Tandem - Medko Fondo |
| Tandem - Men |
| Tandem - Mixed (Co-Ed) |
| Tandem - Small Grinder |
| Tandem 100-Miler |
| Tandem 12-Hour |
| Tandem 12/24-Hour |
| Tandem 15-Miles |
| Tandem 24-Hour |
| Tandem 6-Hour |
| Tandem 62-Miler |
| Tandem 62.5-Mile |
| Tandem 7-Miles |
| Tandem Adult Child |
| Tandem Adult/Child |
| Tandem Exhibition |
| Tandem Exhibition 3K Pursuit |
| Tandem Men |
| Tandem Mixed |
| Tandem Open |
| Tandem Pursuit |
| Tandem Short Course |
| Tandem Team |
| Tandem Team TT |
| Tandem, Mixed |
| Tandem/Recumbent |
| Tandem/Recumbent (Champ Event, Separate Classes) |