The programme for the meet is standardised allowing comparisons between teams and different years. There are 39 events in each meet, but each event is a single heat with one swimmer or relay team selected from each participating club. As it’s a team centred meet over a third of the FVJL events are relays (15 out of 39 events is a lot). Interestingly, some of these relays you don’t see elsewhere for example:

• Events 1 and 2 – 4 x 25m back/breast/free/free (i.e. no fly)
• Events 5 and 6 – The first three strokes (back/breast/fly) are over 25m and the final Freestyle leg is over 50m. 
• Events 37, 38 and 39 – Squadron (six swimmer) relays – with event 39 being mixed.