I looked in the calendar for week "0" and couldn't find it. Last season, when we had the world cup, we had games until week 13 and then weeks 1 and 2.

I believe it is like this:

Week 03 - Free
Week 04 - WC
Week 05 - WC
Week 06 - WC
Week 07 - WC or Free
Week 08 - Wc or Free
Week 09 - Wc Free
Week 10 - WC Free
Week 11 - Free
Week 12 - Free
Week 13 - Free
-------- Age update -------------------------------------
Week 01 - Free
Week 02 - Free

Spain U21

Week 03 - Colombia U-21
Week 04 - WC - Schweiz U-21
Week 05 - WC - Uruguay U-21
Week 06 - WC - Hayastan U-21
Week 07 - WC or Free U-20
Week 08 - WC or Free U-20
Week 09 - WC or Free U-20
Week 10 - WC or Italy U-20
Week 11 - Romania U-20
Week 12 - Bulgaria U-20
Week 13 - Free U-21
-------- Age update -------------------------------------
Week 01 - Brasil U-21
Week 02 - Free U-20
(editado)

Week 03 -Venezuela U20
Week 04 - U20 Mini World Cup
Week 05 - U20 Mini World Cup
Week 06 - U20 Mini World Cup
Week 07 - U20 Mini World Cup
Week 08 - Romania U20
Week 09 -Latvia U20
Week 10 - Uruguay U20
Week 11 - Bulgaria U20
Week 12 - Czech Republic U20
Week 13- Türkiye U20
-------- age update -------------------------------------
Week 01 - Polska U21
Week 02 -Crna Gora 21
(editado)

Both ways of counting calendars:

Uruguay's Calendar (according to site's time tracker in bottom left corner and teams calendars)

W2 – U21 vs Romania
W3 – WC vs Hayastan
W4 – WC vs España
W5 – WC vs Schweiz
W6 – WC or Latvija
W7 – WC or U21 vs Argentina
W08 – WC or U20 vs Schweiz
W9 – WC or U20 vs Bulgaria
W10 – U20 vs Azərbaycan
W11 – U20 vs Česká republika
W12 – vs Brasil
-----------Age change-----------
W0 – Free or U21 vs Ísland
W1 – vs England
[url=https://ibb.co/99CjJw0][/url]

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Uruguay's Calendar (according to U21 NT's Matches page)

Week 03 – U21 vs Romania
Week 04 – WC vs Hayastan
Week 05 – WC vs España
Week 06 – WC vs Schweiz
Week 07 – WC or Latvija
Week 08 – WC or Argentina
Week 09 – WC or U20 vs Schweiz
Week 10 – WC or U20 vs Bulgaria
Week 11 – U20 vs Azərbaycan
Week 12 – U20 vs Česká republika
Week 13 – vs Brasil
----------Age change-----------
Week 01 – Free or U21 vs Ísland
Week 02 – vs England
[url=https://ibb.co/F45ZqsL][/url]
(editado)

Romania U21 Schedule


Week 03 - Uruguay U21
Week 04 - WC
Week 05 - WC
Week 06 - WC
Week 07 - WC or Free
Week 08 - Azərbaycan U20
Week 09 - Bulgaria U20
Week 10 - Free
Week 11 - Espana U20
Week 12 - Free
-------- age update -------------------------------------
Week 00 - Free
Week 01 - Brasil U21

I think there is one more week in your calendar, the week 13

Spain U21

Week 03 - Colombia U-21
Week 04 - WC - Schweiz U-21
Week 05 - WC - Uruguay U-21
Week 06 - WC - Hayastan U-21
Week 07 - WC or Free U-20
Week 08 - WC or Free U-20
Week 09 - WC or Free U-20
Week 10 - WC or Italy U-20
Week 11 - Romania U-20
Week 12 - Bulgaria U-20
Week 13 - Hellas U-21
-------- Age update -------------------------------------
Week 01 - Brasil U-21
Week 02 - Polska U-20
(editado)

Island u21

Week 03 - Kypros
Week 04 -MM
Week 05 - MM or
Week 06 - MM or
Week 07 - MM or
Week 08 - Free
Week 09 - Scotland
Week 10 - Free
Week 11 - Druid cup
Week 12 - Druid cup
Week 13 - Druid cup
-------- age update -------------------------------------
Week 01 - Druid cup or
Week 02 - Druid cup or

Friendly Venezuela U20

Romania U21 Schedule


Week 03 - Uruguay U21
Week 04 - WC
Week 05 - WC
Week 06 - WC
Week 07 - WC or Free
Week 08 - Azərbaycan U20
Week 09 - Bulgaria U20
Week 10 - Free
Week 11 - Espana U20
Week 12 - Free
Week 13 - Free
-------- age update -------------------------------------
Week 00 - Free
Week 01 - Brasil U21

U20 "Mamma mia" World Cup

I N V I T A T I O N

Hello everybody,
U20 "Mamma mia" World Cup (former known as Mini World Cup) is a tournament for all managers who want to prepare their teams for the next qualifiers by playing U20 vs. U20.

All games are knock-out games (cup mode) and the draw of the pairs is totally random. This can be the chance even for weak teams to win, with some luck, the U20 Mini World Cup (U20MWC).
-----------------------------------------------------------------------------------------
If you plan to participate, please first teke a look at the schedule below:

This is how a schedule of a new elected manager looks like:
Week 02 - Free for friendly
Week 03 - U20 Mini World Cup
Week 04 - U20 Mini World Cup
Week 05 - U20 Mini World Cup
Week 06 - U20 Mini World Cup
Week 07 - U20 Mini World Cup
Week 08 - Free for friendly or participation in a continental cup
Week 09 - Free for friendly or participation in a continental cup
Week 10 - Free for friendly or participation in a continental cup
Week 11 - Free for friendly or participation in a continental cup
Week 12 - Free for friendly or participation in a continental cup
-------- age update -------------------------------------
Week 00 - Free for friendly
Week 01 - Free for friendly
-----------------------------------------------------------------------------------------
More information about the U20MWC can be found on the first 3 posts on page 1 of the [U20] "MAMMA MIA" MINI WORLD CUP (U20MWC).

And if you like to be a part of the big Mamma Mia Sokker party, then you just have to register at the site of the [U20] "MAMMA MIA" MINI WORLD CUP (U20MWC) (link here), by just writing the name of the country you manage and U20,
e.g. Ireland U20

(It is very important to write "U20", so all participants know, that you are aware, that this is a tournament for players in age of 20 years or less)

# If you register, you can step back at any time till week 2.
# Only 32 teams can be accepted

Türkiye U21 Schedule


Week 03 - Schweiz U21
Week 04 - WC
Week 05 - WC
Week 06 - WC
Week 07 - WC or Free
Week 08 - WC or Free
Week 09 - WC or England U21
Week 10 - WC or Free
Week 11 - Free
Week 12 - Brazil U20
Week 13 - Azərbaycan U20
-------- age update -------------------------------------
Week 01 - România U21
Week 02 - Free
(editado)

India U21 Schedule

Week 03 - Free
Week 04 - South Africa
Week 05 - Free
Week 06 - Free
Week 07 - Latvia
Week 08 - Free
Week 09 - Free
Week 10 - Free
Week 11 - Free
Week 12 - Free
Week 13 - Free
-------- Age update -------------------------------------
Week 01 - Free
Week 02 - Free


BTW we need a friendly for next week.

Polska U21 Schedule

Week 03 - Free
Week 04 - WC
Week 05 - WC
Week 06 - WC
Week 07 - WC or Free
Week 08 - WC or Free
Week 09 - WC or Free
Week 10 - WC or Rumania
Week 11 - Free
Week 12 - Free
Week 13 - Free
-------- age update -------------------------------------
Week 01 - Azərbaycan U21
Week 02 - Spain U20
(editado)

Brasil U21

Week 03 - Cuba U21
Week 04 - WC - Hrvatska U21
Week 05 - WC - Israel U21
Week 06 - WC - Australia U21
Week 07 - WC or Free
Week 08 - Wc or Bulgaria U21
Week 09 - Wc or Free
Week 10 - WC or Czech Republic U21
Week 11 - Free
Week 12 - Türkiye U20
Week 13 - Uruguay U21
-------- age update -------------------------------------
Week 01 - España U21
Week 02 - România U21

indonesia u21 need friendly match

Week 02 - Cameroon u21 [h]
Week 03 - U20 Mini World Cup
Week 04 - U20 Mini World Cup
Week 05 - U20 Mini World Cup
Week 06 - U20 Mini World Cup or Asian Cup group phase
Week 07 - U20 Mini World Cup or Asian Cup group phase
Week 08 - Free for friendly or Asian Cup group phase
Week 09 - Free for friendly or Asian Cup group phase/quarterfinal
Week 10 - Free for friendly or Asian Cup semifinal
Week 11 - Free for friendly or Asian Cup Final
Week 12 - Free for friendly
Week 13 - Free for friendly
-------- age update -------------------------------------
Week 01 - friendly vs PERU U21
Week 02 - Free for friendly
(editado)