What are your office hours?

The Go Mammoth Office is open Monday through Friday from 9.00am-5:30pm. We are closed all weekends.

Our Weatherline number is 07853249069 (after 5pm on league days only)


How old do you have to be to participate?

In order to attend any of our soical events or leagues you must be aged 18 years old or above.


What is the deadline to register for leagues?

The registration deadline for leagues is usually specified on the relevant sports page of the website. If there is no deadline stated then it has not currently been set. However, please be aware, irrespective of deadlines we fill all leagues on a first come - first served (paid) basis. Whenever all of our allotted space fills up, is when we cut off registration. Do not wait if you are interested, as more likely than not the spots will be taken, and the league will then be full... and you will be disappointed. 


How do I register and when do I pay?

TEAMS/GROUPS - Register through our website and pay either online or by bank transfer (we do not accept cheques unfortunately). Just go to the sport you are interested in and click on register. Click on the league you are interested in, follow the registration process through to the end and pay. If you wish to pay later we will reserve your spot, but ONLY until 10pm the following day - after which point, if we have not received full payment, we will offer your spot to the next team to register. Team registrations are very competitive, so we strongly recommend you secure you place by paying at the same time you register.

INDIVIDUALS - Register through our website and pay online (we do not accept cheques or bank transfers for individual payments). Follow the link on the relevant sports page to register, complete the form, and select from the list the league you want to register for. If there is a space in a team for the league/sport you are interested in, you will be asked to pay the individual registration fee. We strongly recommend you pay your registration fee at the same time you register. We will however hold your spot in the team but ONLY until 10pm the following day - after which point, if we have not received full payment, we will offer your spot to the next individual to register. 


Can I sign up over the phone?

99% of customers sign up on the website - it's easy and super slick. However, we can register you over the phone if necessary. Just call our leagues administration team on 0207 381 6034.


Is the website secure?

Yes. We use a third party for our registration. They use protected and secured technology during both the registration and payment process. If you have any questions, please contact us.


Can you hold a spot for me?

For both Individuals and Teams we will hold your spot ONLY until 10pm the day following your registration. We strongly encourage both Teams & Individuals to pay when registering as this is the only way to guarantee your spot in the league. 


Can you fit one more team in the league even though it says sold out?

Once a league is full, there is no way to just add another team to the schedule. Many of our leagues already account for a BYE week. We only have a certain amount of hours and weeks that we can play at the particular facility, and we base our capacity on that number. We do have a waiting list many times, but the only way to get off that list is if another team drops out.


What if I don't have my own team?

If you sign up as an individual we will place you together with other individuals that sign up to form a team that way. Just click 'Register' on our website, and select 'Register as and Individual'. You can then register for a specific sport/league. If there is space in a team you immediately be asked to pay the registration fee to confirm your place in this team. You have until 6pm the following day to pay the registration fee otherwise your place will be automatically offered to the next individual to register.  


How do I get on the same individual team as a friend of mine?

If you are signing up as an individual we can get you and your friend(s) on the same team depending on availability. If you register through our website as an 'Individual' there is a question on the registration form that asks - 'If you would like to play on the same team as a friend or friends, enter their names here' Fill in your friend(s) name there. 


What can I do if I don't have my own team and you don't offer the level I want as an individual?

If we do not offer the level or league you want as an individual, you can always email us with your suggestion or post a suggestion on our Facebook Page. Our Facebook page is a great way to put your own posting to get on a team or check and see if another team has put up a posting of their own.


When can I expect to hear about my team or schedule for the league I signed up for?

We typically send out all schedules via email and post them on the website (see Leagues & Standings on the specific sports page) about one week before the league starts. This is all dependent on registrations and when a league fills. Individuals can expect to hear a couple days before the league starts about their team and the players on their team. It usually takes longer to get the individual teams put together.

You will also receive email reminders after you play a match and the day before your next match, about your next match. We recommend you keep in touch with your Team Organiser/captain about your availability via email or via your GO Mammoth control panel (to access just log-in on the website).


How long is the season?

The length of a season varies depending upon the sport from 7-9 games. But rule of thumb, most of our leagues consist of a seven game regular season and playoffs (i.e. 8 weeks). League lengths are all denoted in the registration process.


How long do we play for?

Most of our leagues run for one hour. We list a window of time that each league runs for, and you will play one hour within that time frame. Your game times will rotate each week throughout the season.


What if I don't have everyone of my teammates information?

We strongly recommend that you add your team mates into your team when you register (or at some pt before the beginning of the season by logging into your control panel). However, in order to register, we only really need the captain’s information. We consider the waiver form that everyone fills out at the league to be your final roster. Make sure everyone that is on your team fills out completely and signs the waiver form: Waiver PDF


Why is there only a two-week schedule? When will we get the full season schedule?

For most of our leagues we start off by giving everyone a two-week schedule. This allows us to still accept registrations until the second week. It also enables us to tweak things if something comes up or there is a change in the schedule. We always have the full season schedule available online and out at the league by the second week of the season.


When will we receive our t-shirts?

All participants receive one GO Mammoth t-shirt every year (not a team strip). One GO Mammoth club t-shirt is produced every year in January - and every player receives a t-shirt on joining. T-shirts are distributed as early on in the season as possible (usually week 1 or 2 of the season). We have small, medium, large and extra large t-shirts and they can be picked up at the sponsor bar on the specified night. Our staff will inform you when they are available for your pickup. Anyone on the team can pick them up at that time. The GO Mammoth club t-shirt is intended as a joining gift to all our league players. You are entitled to receive 1 t-shirt every year, regardless of when in the year you join. And next January, if you re-register you'll get a new annual t-shirt. Please note, if you enter as a team, there is a maximum number of t-shirts a team can receive depending upon the sport (see relevant sports pages of the webiste for more info). 


For all of our leagues we promote a sponsor bar. This is a place for all teams to go and get drink or food specials at a great bar close to the facility. Many teams get their own sponsors. This is acceptable. It is a great way to help defray your cost for playing in the league. Each bar does it differently, but contact the bar and see what they are willing to offer to sponsor your team in our league.


Can we change our team name?

We can change a team’s name at any point in the season. Just call or email us the change and we will make the adjustment.


Can we switch the league or level we are in?

We can switch you to another night/level/location if there is room in the league you wish to move to. Switching leagues is dependent upon availability. Once a league starts we cannot switch teams, unless we get a team to switch with you.


What is your refund policy?

Absolutely no refunds, credits, vouchers, or transfers to a future season, no matter the circumstances (which also includes, but is not limited to illness and injury), within 5 days of the originally posted start date of the league or class. For ALL refunds processed before this time, there will be a £15 processing fee for individuals and a £30 processing fee for teams.



What happens of a league rains out? When do you make your decision to cancel?

If there is inclement weather or a potential for cancellation, we begin by emailing and calling everyone that we have contact information for. We try to make a decision as early as possible, but oftentimes weather does not break until late. We make our decisions based on what the actual weather has done/is doing, not based on forecasts or potential threats of a storm. We will inform all players about how we plan on making up the cancelled game. However, we do live in the UK, and this is sport, so a little British shower rarely stops GO MAMMOTH!

What are the league prizes?

There are prizes for league winners and also the runner-ups. Click Here for the complete low down!