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2026 Topps Series 1 Baseball Celebration Mega Box Checklist

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The complete 2026 Topps Series 1 Baseball Celebration Mega Box checklist. 1,628 cards across 44 sections: Base Set Checklist (370), Dugout Peeks (30), Walk This Way (50) + 41 more. Jump to a section below, or browse every card with links to eBay sold comps and active listings.

Chase Cards

1. Aaron Judge (#1)

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2. Daulton Varsho (#2)

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3. Luke Keaschall (#3)

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4. Jonah Tong (#4)

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5. Nico Hoerner (#5)

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Checklist Overview

• Base Set Checklist — 370 cards

• Dugout Peeks — 30 cards

• Walk This Way — 50 cards

• Hidden Mascots — 20 cards

• Mascots Dynasty Autographed Patches — 7 cards

• Mascots Dynasty Autographed MLB Logo Patches — 6 cards

• Mascots Dual Dynasty Autographed Patches — 1 cards

• Mascot Autographs — 15 cards

• Mascot Relics — 21 cards

• Mascots — 30 cards

• Gameday Drip — 20 cards

• Perennial All Stars — 25 cards

• 8 Bit Ballers — 25 cards

• Base Set — 370 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Arizona Diamondbacks — 17 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Athletics — 28 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Atlanta Braves — 22 cards

• 2026 Topps Series 1 Celebration Mega Box Baseball Checklist – Baltimore Orioles — 20 cards

• 20256 Topps Series 1 Baseball Celebration Mega Box Checklist – Boston Red Sox — 29 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Chicago Cubs — 28 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Chicago White Sox — 16 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Cincinnati Reds — 29 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Cleveland Guardians — 14 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Colorado Rockies — 15 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Detroit Tigers — 24 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Houston Astros — 20 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Kansas City Royals — 29 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Los Angeles Angels — 19 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Los Angeles Dodgers — 29 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Miami Marlins — 13 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Milwaukee Brewers — 26 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Minnesota Twins — 15 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – New York Mets — 33 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – New York Yankees — 29 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Philadelphia Phillies — 25 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Pittsburgh Pirates — 21 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – San Diego Padres — 17 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – San Francisco Giants — 18 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Seattle Mariners — 24 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – St. Louis Cardinals — 13 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Tampa Bay Rays — 18 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Texas Rangers — 17 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Toronto Blue Jays — 16 cards

• 2026 Topps Series 1 Baseball Celebration Mega Box Checklist – Washington Nationals — 14 cards

Base Set Checklist

370 cards

Dugout Peeks

30 cards

Walk This Way

50 cards

Hidden Mascots

20 cards

Mascots Dynasty Autographed Patches

7 cards

Mascots Dynasty Autographed MLB Logo Patches

6 cards

Mascots Dual Dynasty Autographed Patches

1 cards

Mascot Autographs

15 cards

Mascot Relics

21 cards

Mascots

30 cards

Gameday Drip

20 cards

Perennial All Stars

25 cards

8 Bit Ballers

25 cards

Base Set

370 cards