| 01.05 | |  Internacional MTB Series #2 - Pará de Minas U19 | 2 | |
| 01.05 | |  International Cup Race #3 - Cohav Yair U19 | 2 | |
| 01.05 | |  Rye Bike Festival / Rye Terrengsykkelfestival XCO | 3 | |
| 02.05 | |  Klippingracet | 2 | |
| 02.05 | |  Shimano Supercup Massi Vitoria U19 | 2 | |
| 02.05 | | Rye Bike Festival / Rye Terrengsykkelfestival XCO U19 | 1 | |
| 03.05 | |  XCO Krizni put Posedarje U19 | 2 | |
| 03.05 | |  XCO Gradina U19 | 2 | |
| 03.05 | |  Shimano MTB Liga #2 - Rold U19 | 2 | |
| 08.05 | |  UCI Mountain Bike Continental Series - Englewood Open P/B Trek XC U19 | CS | |
| 09.05 | |  7. Wilder Kaiser MTB Race U19 | 1 | |
| 09.05 | |  Copa Argentina XCO #3 - San Juan U19 | 2 | |
| 09.05 | |  Czech MTB Cup - Vimperk U19 | 1 | |
| 09.05 | | UCI Mountain Bike Continental Series - Gothenburg MTB Race - XCO U19 | CS | |
| 09.05 | |  XIV. Csömör Nagydij U19 | 2 | |
| 09.05 | |  Portugal Cup XCO - Jamor U19 | 2 | |
| 10.05 | |  Lloyds National MTB Cross Country Series #3 - Tong U19 | 1 | |
| 10.05 | | Ispaster Green Series XCO U19 | 2 | |
| 15.05 | | Huskvarna MTB Tour U19 | 1 | |
| 16.05 | |  UCI Mountain Bike Continental Series - American Series Costa Rica XCO U19 | CS | |
| 16.05 | |  Italia Bike Cup - Courmayeur MTB Event U19 | 1 | |
| 16.05 | | Tessuti Sport Bike Race U19 | 2 | |
| 16.05 | |  Mauricius National Championships - XCO U19 | CN | |
| 16.05 | |  Sp XCO Bratislava U19 | 3 | |
| 17.05 | |  Serbia Epic Požarevac XCO U19 | 1 | |
| 17.05 | | G.P. Internacional XCO Penas de Rodas U19 | 2 | |
| 17.05 | |  28. Kamniški Kros U19 | 1 | |
| 17.05 | |  3 Nations Cup - MTB Topcompetitie Langdorp U19 | 2 | |
| 23.05 | |  Vulkan-Race Gedernnternationale Bundesliga U19 | 2 | |
| 24.05 | | Barakaldo Green Series XCO U19 | 2 | |
| 24.05 | |  Roc Laissagais U19 | 3 | |
| 29.05 | | Israeli National Championships - XCO U19 | CN | |
| 29.05 | |  African Continental Championships - XCO U19 | CC | |
| 29.05 | | International Cup Race #4 - Misgav Forest U19 | 2 | |
| 30.05 | | MTB French Cup XCO - Saint-Quentin-en-Yvelines U19 | HC | |
| 30.05 | |  Muszynianka Poland Cup Puchar Polski MTB XCO U19 | 1 | |
| 30.05 | |  UCI Mountain Bike Continental Series - Triada Mtb Cheile Grădiștei - XCO U19 | CS | |
| 30.05 | | Internationaler Raiffeisen Österreich Grand Prix U19 | 1 | |
| 30.05 | | 3 Nations Cup - MTB Festival Vlaanderen U19 | 1 | |
| 31.05 | | Serbia Epic Mionica "Stazama Vojvode Živojina Mišića" U19 | 2 | Geannuleerd |
| 31.05 | | Shimano MTB Liga #3 - Varde U19 | 2 | |
Materiaalzone 
Fietstoerisme 
