Debutants
Fabio Calabria is the youngest debutant in Amgen Tour of California in 2009. There are 58 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | CALABRIA Fabio | Team Type 1 | 21y + 171d |
| 2 | GUARNIERI Jacopo | Liquigas | 21y + 184d |
| 3 | OSS Daniel | Liquigas | 22y + 32d |
| 4 | REIJNEN Kiel | Jelly Belly Cycling Team | 22y + 258d |
| 5 | GAIMON Phillip | Jelly Belly Cycling Team | 23y + 17d |
| 6 | SCHLECK Andy | Saxo Bank | 23y + 249d |
| 7 | FREI Thomas | BMC Racing Team | 24y + 26d |
| 8 | NIBALI Vincenzo | Liquigas | 24y + 92d |
| 9 | LOWE Trent | Team Garmin - Slipstream | 24y + 129d |
| 10 | KEMP David | Fly V Australia P/b Successful Living Foundation | 24y + 310d |
| 11 | EVANS Cameron | Ouch | 25y + 35d |
| 12 | LATHAM Peter | Bissell Pro Cycling | 25y + 37d |
| 13 | SULZBERGER Bernard | Fly V Australia P/b Successful Living Foundation | 25y + 71d |
| 14 | PAUWELS Serge | Cervelo Test Team | 25y + 85d |
| 15 | ROUTLEY Will | Jelly Belly Cycling Team | 25y + 267d |
| 16 | HAEDO Lucas Sebastián | Colavita / Sutter Home presented by Cooking Light | 25y + 302d |
| 17 | MACGREGOR Ian | Team Type 1 | 25y + 307d |
| 18 | GUPTILL Andy | Colavita / Sutter Home presented by Cooking Light | 25y + 334d |
| 19 | MORABITO Steve | Astana | 26y + 15d |
| 20 | BORRAJO Anibal Andres | Colavita / Sutter Home presented by Cooking Light | 26y + 90d |
| 21 | CLEMENT Stef | Rabobank ProTeam | 26y + 143d |
| 22 | DE WEERT Kevin | Quickstep - Innergetic | 26y + 263d |
| 23 | SOUTHERLAND Phil | Team Type 1 | 27y + 30d |
| 24 | CANTWELL Jonathan | Fly V Australia P/b Successful Living Foundation | 27y + 37d |
| 25 | ALDAPE Moises Antonio | Team Type 1 | 27y + 184d |
| 26 | BARREDO Carlos | Quickstep - Innergetic | 27y + 254d |
| 27 | WEENING Pieter | Rabobank ProTeam | 27y + 315d |
| 28 | RIBLON Christophe | AG2R La Mondiale | 28y + 28d |
| 29 | CHICCHI Francesco | Liquigas | 28y + 79d |
| 30 | DUPONT Hubert | AG2R La Mondiale | 28y + 93d |
| 31 | VENNELL Jeremy | Bissell Pro Cycling | 28y + 131d |
| 32 | VANOTTI Alessandro | Liquigas | 28y + 151d |
| 33 | BORRAJO Alejandro Alberto | Colavita / Sutter Home presented by Cooking Light | 28y + 296d |
| 34 | SCHLECK Fränk | Saxo Bank | 28y + 305d |
| 35 | RAST Grégory | Astana | 29y + 28d |
| 36 | POPOVYCH Yaroslav | Astana | 29y + 41d |
| 37 | LANCASTER Brett | Cervelo Test Team | 29y + 91d |
| 38 | JONES Chris | Team Type 1 | 29y + 192d |
| 39 | GADRET John | AG2R La Mondiale | 29y + 298d |
| 40 | ROMERO Luis Alberto | Colavita / Sutter Home presented by Cooking Light | 29y + 313d |
| 41 | JACQUES-MAYNES Andy | Bissell Pro Cycling | 30y + 145d |
| 42 | WILSON Matthew | Team Type 1 | 31y + 136d |
| 43 | NOCENTINI Rinaldo | AG2R La Mondiale | 31y + 142d |
| 44 | ENGELS Addy | Quickstep - Innergetic | 31y + 243d |
| 45 | TUFT Svein | Team Garmin - Slipstream | 31y + 281d |
| 46 | GRABINGER Micheal | Fly V Australia P/b Successful Living Foundation | 31y + 282d |
| 47 | VALJAVEC Tadej | AG2R La Mondiale | 31y + 307d |
| 48 | SEVILLA Óscar | Rock Racing | 32y + 138d |
| 49 | MANCEBO Francisco | Rock Racing | 32y + 342d |
| 50 | SASTRE Carlos | Cervelo Test Team | 33y + 298d |
| 51 | DESSEL Cyril | AG2R La Mondiale | 34y + 77d |
| 52 | GUTIÉRREZ José Enrique | Rock Racing | 34y + 241d |
| 53 | VELO Marco | Quickstep - Innergetic | 34y + 342d |
| 54 | ARMSTRONG Lance | Astana | 37y + 149d |
| 55 | GUNN Curtis | Fly V Australia P/b Successful Living Foundation | 37y + 167d |
| 56 | HAMILTON Tyler | Rock Racing | 37y + 350d |
| 57 | GOUBERT Stéphane | AG2R La Mondiale | 38y + 338d |
| 58 | CUESTA Iñigo | Cervelo Test Team | 39y + 256d |