2025-26 Upper Deck Extended Series Hockey Checklist, Box Breakdown and Key Rookie Cards

2025-26 Upper Deck Extended Series Hockey closes out the flagship trilogy with a familiar structure and one major new chase. This year’s set introduces UD Debut Game Jersey cards, a new memorabilia concept built around swatches from jerseys worn in a player’s NHL debut. That addition gives collectors a fresh rookie target in a product that already leans heavily on Young Guns, 1st Round Rookies, retro-styled inserts, and deep parallel variety.

As the third chapter after Series 1 and Series 2, Extended again picks up the base numbering where the earlier releases stopped. It also swaps out the usual All-Star content in favor of a 4 Nations Face-Off subset, giving the product a different international look than past editions. For collectors ripping hobby boxes, the appeal is clear: three serial-numbered cards per box, a healthy mix of inserts and parallels, and a rookie checklist that includes some of the hobby’s most watched names.

Set overview and base format

The 2025-26 Upper Deck Extended Series Hockey base set runs 250 cards, covering cards #501 through #750. Veterans and special subset cards occupy the front portion of the release, while the rookie content sits at the back.

• Veterans: #501-645
• 4 Nations Face-Off: #646-698
• Checklist cards: #699-700
• Young Guns: #701-740
• 1st Round Rookies: #741-750

The veteran section includes stars, role players, and updated team situations across the league. The 4 Nations subset replaces the all-star themed segment collectors have seen in prior flagship installments. That change brings international names like Connor McDavid, Sidney Crosby, Auston Matthews, William Nylander, Aleksander Barkov and Mikko Rantanen into the middle of the base checklist under national team banners.

For rookie chasers, Upper Deck keeps its proven formula in place. Young Guns and 1st Round Rookies combine to fall once every other hobby pack, giving collectors regular shots at first-year content throughout a box.

Base parallels and rookie parallel lineup

Extended Series stays busy on the parallel front, and the main set has a full ladder that stretches from easier pulls to true one-of-one cards. Across the base release, collectors can chase:

• Outburst
• Clear Cut
• Deluxe /250
• UD Exclusives /100
• Outburst Red /25
• High Gloss /10
• Outburst Gold /1

For hobby pack odds, the base Outburst versions land at different rates depending on player tier. Veterans fall 1:30 packs, Young Guns 1:100, and 1st Round Rookies 1:150. Clear Cut versions are also tiered, with veterans 1:96, Young Guns 1:240, and 1st Round Rookies 1:360.

Young Guns also get a second layer of premium treatments. Canvas Young Guns return at 1:24 packs, with Black and White versions at 1:135 and Printing Plates as one-of-ones. The retro side includes the extremely difficult Outburst Retro Young Guns, which land just 1:2,880 packs, along with Red /25 and Gold 1/1 parallels.

That mix gives collectors plenty of ways to chase the same rookie name across different aesthetics, from traditional flagship paper to acetate, canvas, retro and serial-numbered variants.

UD Debut Game Jersey cards bring a new rookie chase

The biggest change in 2025-26 Extended Series is the arrival of UD Debut Game Jersey cards. These cards use a jersey swatch from a player’s NHL debut and pair it with an image from that game. For collectors who value event-used and first-game material, this is easily the headline addition in the product.

The standard memorabilia cards are tough pulls, listed at 1:1,296 hobby packs and 1:1,440 blaster or hanger packs. The autograph versions are more limited, numbered to match each featured player’s jersey number, and each also has a Black Tag Patch 1/1 parallel reserved for hobby and e-Pack.

Upper Deck also notes that some of the one-of-one black tag patch autos may include provenance details such as a team-issued or third-party authentication tag, or a personalized notation from an equipment manager on the tag or fight strap. That creates a distinct high-end niche inside what is otherwise a flagship release.

UD Debut Game Jersey checklist

• Brady Martin, Nashville Predators
• Beckett Sennecke, Anaheim Ducks
• Daniil But, Utah Mammoth
• Danila Yurov, Minnesota Wild
• Easton Cowan, Toronto Maple Leafs
• Isaac Howard, Edmonton Oilers
• Michael Misa, San Jose Sharks
• Matthew Schaefer, New York Islanders
• Sam Dickinson, San Jose Sharks

UD Debut Game Jersey autograph numbering

• Brady Martin /44
• Beckett Sennecke /45
• Daniil But /19
• Danila Yurov /22
• Easton Cowan /53
• Isaac Howard /53
• Michael Misa /76
• Matthew Schaefer /48
• Sam Dickinson /6

That Sam Dickinson /6 auto will stand out immediately as one of the toughest rookie autos in the entire release.

Young Guns and 1st Round Rookies to know

The rookie content in Extended Series covers both the traditional Young Guns range and a smaller 1st Round Rookies group. While Young Guns remain the core flagship rookie identity, the 1st Round Rookies subset concentrates some of the product’s biggest prospect names into a compact 10-card run.

Key Young Guns names

• Beckett Sennecke, Anaheim Ducks
• Florian Xhekaj, Montreal Canadiens
• Taylor Makar, Colorado Avalanche
• Zeev Buium, Vancouver Canucks
• Daniil But, Utah Mammoth
• Sergei Murashov, Pittsburgh Penguins
• Berkly Catton, Seattle Kraken
• Nate Danielson, Detroit Red Wings
• Tom Willander, Vancouver Canucks
• Nick Lardis, Chicago Blackhawks
• Igor Chernyshov, San Jose Sharks

1st Round Rookies checklist

• Artyom Levshunov, Chicago Blackhawks
• Berkly Catton, Seattle Kraken
• Ivan Demidov, Montreal Canadiens
• Beckett Sennecke, Anaheim Ducks
• Ryan Leonard, Washington Capitals
• Matthew Schaefer, New York Islanders
• Jimmy Snuggerud, St. Louis Blues
• Easton Cowan, Toronto Maple Leafs
• Zayne Parekh, Calgary Flames
• Michael Misa, San Jose Sharks

That 10-card list is loaded. Demidov, Leonard, Schaefer, Cowan, Parekh and Misa all look like centerpiece names for collectors building rookie-focused runs of the set.

Insert sets mixing modern flagship and retro Upper Deck style

Upper Deck continues to use Extended Series as a place to stretch the flagship design approach. Some inserts carry over from Series 1 and Series 2, while others lean into nostalgia from older Upper Deck brands.

Returning inserts include Dazzlers Blue, Sizzle Reel and UD Canvas. Dazzlers Blue lands 1:12 packs, with Pink at 1:72 and Gold at 1:2,880. Sizzle Reel falls 1:5 packs and adds Speckle, Red /199 and Gold /25 parallels. UD Canvas comes 1:4 packs and remains one of the product’s most recognizable staples.

Canvas again includes extra depth beyond the standard veteran cards. There are Young Guns Canvas cards, Legends, and 4 Nations cards, plus Black and White parallels and Printing Plates for select sections. The legends checklist includes names such as Bobby Orr, Sergei Fedorov, Duncan Keith, Terry Sawchuk and Dale Hawerchuk.

On the retro side, Upper Deck revives HoloGrFX, Pros and Prospects and UD3. Those inserts give the set a stronger early-2000s and late-1990s feel than a standard flagship hockey release.

• Pros and Prospects: 1:3 packs, Gold /250
• UD3: 1:4 packs, Gold /333
• HoloGrFX Rookies: 1:60 packs
• HoloGrFX AuSOME: 1:120 packs
• HoloGrFX Star View: 1:360 packs

Star View is especially loaded, with a short list that includes Cole Caufield, Nathan MacKinnon, David Pastrnak, Connor Bedard, Connor McDavid, Cale Makar, Sidney Crosby, Leon Draisaitl, Auston Matthews and Alex Ovechkin.

Additional inserts, SSP content and numbered rookie cards

Extended Series does not stop with the bigger named brands. The set also includes Understood The Assignment, Rookie Reflections, Power Play, All-World Team, Rookie Update, Trilogy Rookie Premieres, Killer Keepers, Synergy Rookies, Playmakers, Champs Rookies, Day With The Cup and a one-card Thermal Threats insert built around Ivan Demidov.

For hobby-focused collectors, some of the strongest chase material outside the main rookie cards may come from the lower-numbered insert programs.

• Rookie Reflections Gold /100
• Rookie Update base /1999, Red /199, Gold /10
• Trilogy Rookie Premieres Common /999, Uncommon /499, Rare /99
• Synergy Rookies /26
• Killer Keepers print run of 35

Synergy Rookies is particularly strong because of the player list and the low numbering. The /26 checklist includes names such as Gabe Perreault, Brady Martin, Sam Rinzel, Michael Misa, Beckett Sennecke, Isaac Howard, Matthew Schaefer, Easton Cowan, Ivan Demidov, Ryan Leonard, Sam Dickinson, Zeev Buium and Axel Sandin-Pellikka.

Killer Keepers gives goaltender collectors a super short print target with names including Igor Shesterkin, Connor Hellebuyck, Jeremy Swayman, Jake Oettinger, Ilya Sorokin, Joseph Woll, Sergei Bobrovsky, Logan Thompson and Adin Hill.

Hobby box and blaster box expectations

Collectors opening sealed product will want to know how the content is distributed. Hobby and blaster formats each deliver 12-card packs, but the overall mix is very different.

Cards at a glance

• Cards per pack: 12
• Packs per hobby box: 12
• Packs per blaster box: 4
• Hobby boxes per case: 12
• Blaster boxes per case: 20
• Set size: 250 cards
• Release date: June 3, 2026

Expected hobby box content

• Pros and Prospects, UD3, or Rookie Reflections inserts: 10 total
• Power Play, All-World Team, Sizzle Reel, or Understood The Assignment inserts: 9 total
• Blue Dazzlers: 1
• Young Guns or 1st Round Rookies: 6 total
• UD Canvas: 4
• Serial-numbered or rare inserts: 3
• Outburst Silver parallel: 1
• Speckle parallel from Power Play, All-World Team, Sizzle Reel, or Understood The Assignment: 1
• Clear Cut, UD Canvas Black and White, or HoloGrFX: 1

Expected blaster box content

• Young Guns: 1
• Inserts: 5

Three numbered cards per hobby box is a strong selling point for a flagship-style release. It gives breakers and set builders a more dependable floor than some previous lower-risk formats.

Notable checklist highlights by player and team

Several franchises stand out because they stack key rookies across multiple insert sets. Anaheim is one of the clearest examples, with Beckett Sennecke appearing as a Young Gun, 1st Round Rookie, Canvas Young Gun, HoloGrFX Rookie, Power Play card, Rookie Reflections card, Rookie Update card, Synergy Rookies card, Trilogy Rookie Premieres card, UD3 card, and both standard and autograph Debut Game Jersey cards.

San Jose is another focal point. Michael Misa anchors the Sharks’ rookie content, but Sam Dickinson, Cam Lund and Igor Chernyshov also show up across multiple sets. That makes the Sharks one of the deepest teams in the entire checklist for prospect-oriented collectors.

The Canadiens land one of the most important rookie names in Ivan Demidov, who appears in the 1st Round Rookies checklist, HoloGrFX Rookies, Power Play, Rookie Reflections, Rookie Update, Synergy Rookies, Trilogy Rookie Premieres, UD3 and the one-card Thermal Threats insert. Toronto gets a similar spotlight through Easton Cowan, while the Islanders are pushed by Matthew Schaefer’s presence across flagship, canvas, UD3 and Debut Game Jersey content.

Other rookie-centered teams worth watching include Chicago for Artyom Levshunov and Oliver Moore, Calgary for Zayne Parekh, Washington for Ryan Leonard, Seattle for Berkly Catton, St. Louis for Jimmy Snuggerud and Dalibor Dvorsky, and Nashville for Brady Martin, Matthew Wood and Joakim Kemell.

Core checklist details collectors should keep handy

For anyone building the set or targeting singles, these are the most useful checklist takeaways from the release:

• Main base set spans #501-750
• 4 Nations Face-Off subset replaces the usual all-star section
• Young Guns fall 1:3 packs
• 1st Round Rookies fall 1:10 packs
• Canvas Young Guns fall 1:24 packs
• UD Debut Game Jersey memorabilia is extremely tough at 1:1,296 hobby packs
• Outburst Retro Young Guns are among the hardest pulls at 1:2,880 hobby packs
• Killer Keepers has a print run of 35
• Synergy Rookies are numbered to /26
• Rookie Update is serial-numbered starting at /1999

The strongest mix of star veterans, international subset cards, classic insert branding, and high-priority rookies gives 2025-26 Upper Deck Extended Series Hockey a broader checklist than a typical flagship extension. Collectors chasing names like Matthew Schaefer, Michael Misa, Beckett Sennecke, Ivan Demidov, Ryan Leonard, Easton Cowan and Zayne Parekh will have multiple lanes to pursue, from standard Young Guns to scarce memorabilia autos and low-numbered insert cards.