| Tamarancho Maiden Ridemtb | 7 | 14 miles | | Woodacre | CA | 1 |
| Calero Loopmtb | 2 | 7 miles | | San Jose | CA | 2 |
| Calero Park Loopmtb | 3 | 9 miles | | San Jose | CA | 3 |
| Tamarancho Loopmtb | 9 | 7 miles | | Woodacre | CA | 4 |
| san vicentemtb | 12 | 10 miles | | San Jose | CA | 5 |
| Waterdog Complete Loopmtb | 9 | 7 miles | | Belmont | CA | 6 |
| Endor Quick Hitter Alternative (Best For BMX, Dirt Jumpers)mtb | 4 | 4 miles | | Woodacre | CA | 7 |
| Ride the Crockett Hillsmtb | 10 | 13 miles | | Crockett | CA | 8 |
| Arastradero Samplermtb | 13 | 7 miles | | Palo Alto | CA | 9 |
| Skeggs Figure 8 Loopmtb | 16 | 10 miles | | Redwood City | CA | 10 |
| Mt Tam Round the Dellmtb | 12 | 26 miles | | Mill Valley | CA | 11 |
| China Camp darkmtb | 4 | 13 miles | | San Rafael | CA | 12 |
| Mt Tam Roundermtb | 5 | 21 miles | | Mill Valley | CA | 13 |
| Skegg's Point 7mtb | 5 | 10 miles | | Redwood City | CA | 14 |
| Best Of Twin Peaks > Mt.Sutro > Laguna Honda Trail Systemsmtb | 16 | 8 miles | | San Francisco | CA | 15 |
| Brushy Peak Interior Loopmtb | 1 | 5 miles | | Livermore | CA | 16 |
| Mt Tam Roundermtb | 6 | 23 miles | | Mill Valley | CA | 17 |
| Tam Olema Geronimo Loop - E Ridgecrest Gravity Car Out & Backmtb | 6 | 42 miles | | Fairfax | CA | 18 |
| Moore Creek Loopmtb | 4 | 8 miles | | Saint Helena | CA | 19 |
| Mt Tam Southern Face Loopmtb | 7 | 19 miles | | Mill Valley | CA | 20 |
| Rancho Canada to Calero and backmtb | 5 | 18 miles | | San Jose | CA | 21 |
| Harvey Bear 14 Mile Loop Ed Wilson/Gaviota DHmtb | 19 | 14 miles | | Morgan Hill | CA | 22 |
| Short Chicken Shack Loma Alta Queenstone Loopmtb | 13 | 33 miles | | Novato | CA | 23 |
| Endor Quick Hittermtb | 16 | 5 miles | | Woodacre | CA | 24 |
| Ranger Station Loopmtb | 5 | 9 miles | | Castro Valley | CA | 25 |
| Skeggs 15 mile loop from new parkingmtb | 25 | 15 miles | | Redwood City | CA | 26 |
| Broken Wing Butterflymtb | 6 | 13 miles | | Sausalito | CA | 27 |
| Chicken Shack Triple Loopmtb | 8 | 18 miles | | Novato | CA | 28 |
| Chill Rockville Loopmtb | 5 | 4 miles | | Fairfield | CA | 29 |
| Belgatos to Shannon Long Loopmtb | 2 | 2 miles | | San Jose | CA | 30 |
| Brad's PUC Ridemtb | 17 | 12 miles | | Angwin | CA | 31 |
| Sequoia Bayview to Big Trees Loopmtb | 7 | 2 miles | | Oakland | CA | 32 |
| Full loop from the topmtb | 11 | 8 miles | | Belmont | CA | 33 |
| Waterdog with LoL Trailmtb | 6 | 7 miles | | Belmont | CA | 34 |
| 22 mile Big Rock & Loma Alta Tour.mtb | 5 | 22 miles | | San Rafael | CA | 35 |
| Bolinas Ridge Olema Valley Loopmtb | 1 | 23 miles | | Fairfax | CA | 36 |
| Rocky Ridge Out and Backmtb | 3 | 4 miles | | San Jose | CA | 37 |
| Blue Blossom Special: Intro to Skeggsmtb | 2 | 6 miles | | Redwood City | CA | 38 |
| Harvey Bear Loopmtb | 5 | 13 miles | | Morgan Hill | CA | 39 |
| Joaquin Miller Killermtb | 7 | 10 miles | | Oakland | CA | 40 |
| Easy going loopmtb | 5 | 10 miles | | Redwood City | CA | 41 |
| Manzanita - Blue Blossom Fig. 8mtb | 5 | 12 miles | | Redwood City | CA | 42 |
| East Ridge / West Ridge Loopmtb | 5 | 8 miles | | Oakland | CA | 43 |
| China Camp Peak East West Loopmtb | 13 | 19 miles | | San Rafael | CA | 44 |
| San Pedro Mountain to Old Colma Road Loopmtb | 16 | 7 miles | | Montara | CA | 45 |
| Canada del Oro : Baldy Peak loopmtb | 6 | 8 miles | | San Jose | CA | 46 |
| Coyote Lake Harvey Bear Ranch Grand Tourmtb | 8 | 22 miles | | Morgan Hill | CA | 47 |
| Mt Tam Epicmtb | 7 | 26 miles | | Mill Valley | CA | 48 |
| Calero Mellow Green Out n Backmtb | 3 | 15 miles | | San Jose | CA | 49 |
| stp rocky ridge quickloopmtb | 13 | 6 miles | | San Jose | CA | 50 |
| Lake Chabot Gravel Ridemtb | 50 | 37 miles | | Oakland | CA | 51 |
| Trifectamtb | 5 | 15 miles | | Woodside | CA | 52 |
| Marin Headlands Ride From Rodeomtb | 4 | 7 miles | | Sausalito | CA | 53 |
| Tamarancho Loop + Flowmtb | 9 | 19 miles | | San Rafael | CA | 54 |
| Headlands XC Loopmtb | 4 | 8 miles | | Sausalito | CA | 55 |
| China Camp - Easy Loopmtb | 6 | 9 miles | | San Rafael | CA | 56 |
| Quick Training Loopmtb | 4 | 3 miles | | Redwood City | CA | 57 |
| Red Tail Soaring Hawk JMP Skyline Loopmtb | 12 | 31 miles | | Castro Valley | CA | 58 |
| Manzanita - Blue Blossom Fig 8mtb | 4 | 12 miles | | Redwood City | CA | 59 |
| BTCEB B- Tilden Gala Ridemtb | 6 | 9 miles | | Berkeley | CA | 60 |
| Lake Chabot - Cottontail Lake Loopmtb | 6 | 12 miles | | Castro Valley | CA | 61 |
| Lime Time Loopmtb | 10 | 4 miles | | Concord | CA | 62 |
| Skeggs-N-Eggs Litemtb | 3 | 11 miles | | Redwood City | CA | 63 |
| ECdM 10 Mile Loop from Star Hillmtb | 17 | 10 miles | | Redwood City | CA | 64 |
| Calero Longermtb | 7 | 15 miles | | San Jose | CA | 65 |
| Brian Gong's Leisure Lapmtb | 7 | 10 miles | | Montara | CA | 66 |
| Best skeggs trails in a short distancemtb | 2 | 12 miles | | Redwood City | CA | 67 |
| Moore Creek Lower Loop counter clockwmtb | 5 | 9 miles | | Saint Helena | CA | 68 |
| Chabotmtb | 3 | 9 miles | | Castro Valley | CA | 69 |
| Marin Gravel Loopmtb | 1 | 31 miles | | San Francisco | CA | 70 |
| Joaquin Miller Park Big Trees and Cinderella loopmtb | 34 | 8 miles | | Oakland | CA | 71 |
| Angwin out and backmtb | 1 | 14 miles | | Saint Helena | CA | 72 |
| Montara Mountain Tourmtb | 9 | 6 miles | | Montara | CA | 73 |
| Sutro Samplemtb | 17 | 7 miles | | San Francisco | CA | 74 |
| 2018 East Bay Dirt Classic Short Coursemtb | 6 | 24 miles | | Oakland | CA | 75 |
| The whole shebangmtb | 8 | 32 miles | | Berkeley | CA | 76 |
| Shell Ridge Loopmtb | 2 | 11 miles | | Walnut Creek | CA | 77 |
| JMP Blue and Green Loopmtb | 4 | 5 miles | | Oakland | CA | 78 |
| Fernandez Ranch Chill Loopmtb | 4 | 5 miles | | Martinez | CA | 79 |
| Stevens Canyon + Montebello + Skylinemtb | 15 | 15 miles | | Saratoga | CA | 80 |
| Arastradero Loopermtb | 4 | 7 miles | | Palo Alto | CA | 81 |
| UG2021 Race 3mtb | 5 | 11 miles | | Redwood City | CA | 82 |
| Rockville 10-milermtb | 13 | 10 miles | | Fairfield | CA | 83 |
| 500watt Fun rip!ebike | 19 | 20 miles | | Morgan Hill | CA | 84 |
| Really Light Enduro race trackmtb | 9 | 19 miles | | Portola Valley | CA | 85 |
| Fairfax-Bo Ridge Gravel Grindermtb | 9 | 42 miles | | Woodacre | CA | 86 |
| White Hill, Flow, Alchemistmtb | 5 | 5 miles | | Woodacre | CA | 87 |
| Efficiency to the Topmtb | 2 | 1 mile | | Menlo Park | CA | 88 |
| Skeggs: Blue Blossom, Salamander, Resolution, Manzanita, Sierra Morenamtb | 22 | 14 miles | | Redwood City | CA | 89 |
| The Waterdog Tourmtb | 12 | 10 miles | | Belmont | CA | 90 |
| Best Of El Granadamtb | 8 | 21 miles | | El Granada | CA | 91 |
| White Hill Tamarancho Loopmtb | 13 | 18 miles | | Woodacre | CA | 92 |
| Great Kid's Lake Ridemtb | 4 | 8 miles | | Woodacre | CA | 93 |
| Old Finley - Ridgeline - Jeremiah - Sulphur Springsmtb | 3 | 9 miles | | Danville | CA | 94 |
| Skeggs-N-Eggsmtb | 9 | 18 miles | | San Mateo | CA | 95 |
| Classic Tam Routemtb | 5 | 20 miles | | Woodacre | CA | 96 |
| Calero Longmtb | 6 | 18 miles | | San Jose | CA | 97 |
| Highlands Loopmtb | 2 | 3 miles | | San Mateo | CA | 98 |
| Quick Easy Funmtb | 2 | 7 miles | | Redwood City | CA | 99 |
| Briones Ridemtb | 1 | 13 miles | | Walnut Creek | CA | 100 |