Our son also plays, but can't currently due to illness.
For future reference: Bayawan Pension House - basic/clean/cheap/no breakfast, but a small eatery close by; Hotel Maefinn - more expensive/usually clean/breakfast included.
Problem solved, thankfully. They found a bed and breakfast with 4 beds close to the school where the soccer tournament is. The team bus has a 4:30 am call time Saturday, if they went with that, so more sleep this way.