ATP ADDENDUM CHALLENGER ADDENDUM I. ATP CIRCUIT REGULATIONS 1.21 Hotel Accommodations A. Tournament Obligations 2) ATP Challenger Tour Tournaments c) Qualifiers i) Eight (8) Day Events B. Player Obligations ATP Masters 1000: III. FINANCIAL 3.08 Prize Money A. General 3) Singles: ● 20% reduction with limited fans - greater than 50% capacity ● 40% reduction with limited fans - up to 50% capacity ● 50% reduction with no fans ● No reduction if greater than 85% ticket units sold ● 20% reduction with 71-85% ticket units sold ● 40% reduction with 61-70% ticket units sold ● 50% reduction with 41-60% ticket units sold ● 60% reduction with 0-40% ticket units sold Adjustments may occur based on changes in local authority allowance between the  defined advanced Prize Money deadline and the completion of each event. Calculated by 2021 Ticket units sold against 2019 ticket units sold: Complimentary hotel accommodations for players in the singles qualifying  shall be available to begin on the night before the start of qualifying compe - tition and be available to each player through the night of the player’s last  qualifying match (not applicable for events with 48 main draw).  Successful qualifiers shall have their hospitality at the official hotel made ret - roactive from the night before the start of the qualifying competition.  All 2021 Challenger events are eight (8) day events unless otherwise ap - proved by ATP. 6) Qualifier Reservations . Players participating in the qualifying competition who  wish to receive a player rate at a tournament hotel (for 48 draw events) or com - plimentary hotel accommodation (32 draw events) must make a hotel reservation  no later than five (5) days prior to the start of qualifying (48 draw events) or 14  days (for 32 draw events) with either the hotel or the tournament, as specified on  the tournament detail sheet. Reservation changes can be made up to forty-eight  (48) hours prior to the start of the reservation except that a player still competing  in either singles or doubles in the prior week’s tournament must confirm reserva - tions when his travel plans are finalized. 3.04 Fee Obligation B. 3) ATP Challenger Tour Tournaments The fee is payable in two (2) 50% installments. Installment 1 is to be paid a mini - mum of 10 weeks before the tournament. Installment 2 will be deducted from the additional Covid-19 Challenger funding  paid to the tournament after the completion of the event. c) A player (or a team in case of doubles) who withdraws prior to his first match  from the singles qualifying (after the Friday 12 noon freeze deadline) or main  draw singles competition (after the start of qualifying) or main draw doubles  395 394