The Pokémon GO Holiday Part 1 event presents trainers with a branching research path, requiring a choice between assisting Spark or Sierra. While official Niantic announcements omitted details on this free research, available from December 17th to December 22nd at 9:59 AM local time, it's a crucial part of the event's three-section research story. After the initial tasks, players must decide: Team Instinct's Spark or Team GO Rocket's Sierra?
The choice isn't drastically impactful; it primarily affects the Pokémon you'll catch and your reward encounter. Let's examine each option:
Should You Choose Spark or Sierra in Pokémon GO's Holiday Part 1 Event Research?
Spark Research Tasks & Rewards

Choosing Spark focuses your efforts on Ice-type Pokémon. Completing Part 2 rewards you with an Alolan Vulpix encounter.
Part 2
Research Task | Reward |
---|---|
Catch 10 Ice-Type Pokémon | 10 Pinap Berries |
Take 5 snapshots of different wild Pokémon | 20 Poké Balls |
Complete 5 Field Research Tasks | 500 Stardust |
Complete All Three Tasks | Alolan Vulpix encounter, 2000 XP |
Part 3
Research Task | Reward |
---|---|
Catch 25 Ice-Type Pokémon | 10 Ultra Balls |
Power Up Ice-Type Pokémon 10 Times | 1 Golden Razz Berry |
Collect MP from 3 Power Spots | 100 Max Particles |
Complete All Three Tasks | Sandygast encounter, 3000 XP, 2000 Stardust |
Note: Part 3 rewards, including the Sandygast encounter, are consistent regardless of your choice between Spark and Sierra.
Sierra Research Tasks & Rewards

Selecting Sierra shifts the focus to Fire-type Pokémon, with a Shadow Vulpix encounter as the Part 2 reward.
Part 2
Research Task | Reward |
---|---|
Catch 10 Fire-Type Pokémon | 10 Pinap Berries |
Take 5 snapshots of different wild Pokémon | 20 Poké Balls |
Complete 5 Field Research Tasks | 500 Stardust |
Complete All Three Tasks | Shadow Vulpix encounter, 2000 XP |
Part 3
Research Task | Reward |
---|---|
Catch 25 Fire-Type Pokémon | 10 Ultra Balls |
Power Up Fire-Type Pokémon 10 Times | 1 Golden Razz Berry |
Collect MP from 3 Power Spots | 100 Max Particles |
Complete All Three Tasks | Sandygast encounter, 3000 XP, 2000 Stardust |
Your decision hinges on your preferred Vulpix variant and the Pokémon type you wish to prioritize catching during the Holiday Part 1 event.
Pokémon GO is available now.