Most racedays with other riders
Riders sorted by the number of times they started in the same race as Josef Zilker.
| # | Rider | Number of races |
|---|---|---|
| 1 | DOWNEY Alberto | 1 |
| 2 | MOSS Charles | 1 |
| 3 | KARLSSON Werner | 1 |
| 4 | KOPSKY Joe | 1 |
| 5 | OSKARI TILKANEN Vilho | 1 |
| 6 | HAMMOND William Robert | 1 |
| 7 | RAMMER Robert | 1 |
| 8 | THOMPSON Robert | 1 |
| 9 | MEYLAND SMITH Olaf | 1 |
| 10 | BECHT John | 1 |
| 11 | JONES Stanley Lawrence | 1 |
| 12 | GAYLER Herbert | 1 |
| 13 | STEVENSON David | 1 |
| 14 | MARTIN Walden Charles | 1 |
| 15 | KOLLER Carlos | 1 |
| 16 | MEISSNER Frank | 1 |
| 17 | FRIEDEMANN Arturo | 1 |
| 18 | MÜLLER Istvan | 1 |
| 19 | TORRES José | 1 |
| 20 | HENZSEL Janos | 1 |
| 21 | SMIEL Hermann | 1 |
| 22 | MAZUR Gyula | 1 |
| 23 | TEIDZENBERGER Ignac | 1 |
| 24 | CORSAR George | 1 |
| 25 | TINTĚRA Václav | 1 |
| 26 | VOKOUN Jan | 1 |
| 27 | KUNDERT František | 1 |
| 28 | PATOU Jean | 1 |
| 29 | RIEDER Josef | 1 |
| 30 | MALM Ragnar | 1 |
| 31 | PERSSON Axel Wilhelm | 1 |
| 32 | LEVIN Hjalmar | 1 |
| 33 | JAAKONAHO Juho | 1 |
| 34 | RAITA Antti | 1 |
| 35 | MORÉN Henrik | 1 |
| 36 | PETTERSSON Arvid | 1 |
| 37 | EKSTRÖM Alex | 1 |
| 38 | MEREDITH Leonard | 1 |
| 39 | HENRICHSEN Paul | 1 |
| 40 | MICHIELS Alexis | 1 |
| 41 | RAMEŠ Bohumil | 1 |
| 42 | LEWIS Rudolf Ludewyk | 1 |
| 43 | GRUBB Frederick | 1 |
| 44 | OTTO SCHUTTE Carl | 1 |
| 45 | BROWN Frank | 1 |
| 46 | FRIBORG Johan Erik | 1 |
| 47 | LÖNN Algot | 1 |
| 48 | LOFTES Alvin | 1 |
| 49 | KRUSCHEL Albert | 1 |
| 50 | WILSON John | 1 |