Materiaalzone 
Fietstoerisme 
Info
| Achternaam | Welcker |
| Voornaam | Oliver |
| Nationaliteit |  United States |
| Geboortedatum | 19-05-2007 |
| Leeftijd | 18 |
| Datum | Rank | Wedstrijd |
|---|---|---|
| 17-07 | 33 | American National Championships - XCO U19 (CN) |
| 28-06 | DNS | Soho Bike Fest (CS) |
| 21-06 | DNS | Missoula XC (1) |
| 21-06 | DNS | Missoula XCC (3) |
| 14-06 | DNF |  Canmore Canada Cup XCO (CS) |
| 11-06 | 16 | Canmore Canada Cup XCO U19 (1) |
| 02-05 | 2 | Englewood Open p/b Trek (1) |
| 21-03 | 23 | US Pro Cup - Fayetteville (Day 2) U19 (HC) |
| 20-03 | 1 | US Pro Cup - Fayetteville (Day 1) U19 (1) |
| 19-02 | DNF |  Tropical MTB Challenge - 2 U19 (CS) |