Viktor Blom (Isildur1)

Last updated: May 23, 2026

Viktor Blom — online screen name "Isildur1" — is a Swedish poker pro born September 26, 1990 in Stockholm. In November 2009 (age 19), he appeared on Full Tilt Poker's $500/$1000 NLHE and PLO tables and won roughly $5M in single weeks against Tom Dwan, Patrik Antonius, and other regulars. Weeks later, on December 8, 2009, he lost approximately $4.18M to Brian Hastings in a single session — one of the largest single-day losses in online poker history. His identity stayed hidden until late 2010 when PokerStars revealed him as their newest Team Pro. He played the SuperStar Showdown series against Phil Galfond, Patrik Antonius, and Gus Hansen, then left PokerStars in 2017. Live tournament earnings: ~$5.5M including a $1.25M PCA Super High Roller win in 2013.

Definitions

Isildur1
Viktor Blom's online poker screen name. First appeared on Full Tilt Poker in late 2009, later moved to PokerStars in 2010. Named after a Lord of the Rings character.
Nosebleed Stakes
The highest stakes in online poker, typically $200/$400 NLHE and above. Isildur1 played $500/$1000 in his 2009 breakout — sessions could swing millions in hours.
SuperStar Showdown
PokerStars-hosted heads-up match series 2010-2011. Isildur1 faced pros (Galfond, Antonius, Hansen) in 2,500-hand matches at $50/$100. Blom won most matches but lost to Phil Galfond.
Heads-Up NLHE / PLO
1-vs-1 No-Limit Hold'em or Pot-Limit Omaha. Blom's specialty. Online heads-up cash at $500/$1000+ is the highest-variance, highest-skill format in poker.
Team PokerStars Pro
PokerStars-sponsored ambassador role. Blom joined in late 2010 (revealing the Isildur1 identity), left in 2017. Salary + tournament buy-ins in exchange for branding rights.

Frequently Asked Questions

Who is Viktor Blom?

Viktor Blom is a Swedish online poker pro born September 26, 1990 in Stockholm. He played online under the screen name 'Isildur1' on Full Tilt Poker starting in 2009, then PokerStars from 2010 to 2017. He specializes in heads-up No-Limit Hold'em and Pot-Limit Omaha at the highest stakes online, and has accumulated ~$5.5M in live tournament earnings. Known for extreme aggression and willingness to gamble huge sums.

What was the Isildur1 mystery?

From November 2009 to early 2010, Isildur1 appeared on Full Tilt's $500/$1000 NLHE and PLO tables and started crushing high-stakes regulars — winning ~$5M in single weeks against Tom Dwan, Patrik Antonius, and others. Nobody knew who the player was. The identity was finally revealed in late 2010 when PokerStars announced Viktor Blom — a then-20-year-old Swede — as their newest Team Pro.

What was the SuperStar Showdown blow-up vs Brian Hastings?

On December 8, 2009, Isildur1 lost approximately $4.18M to Brian Hastings in a single session of $500/$1000 NLHE on Full Tilt — one of the largest single-day losses in online poker history. It was later revealed that Hastings, Cole South, and Brian Townsend had shared notes and database hand history on Isildur1 — a Full Tilt terms-of-service violation that led to a 30-day ban for Townsend. The session effectively ended Blom's initial nosebleed run.

How much has Viktor Blom won and lost?

Exact figures stay private but estimates suggest his online cash game results have swung from +$10M+ peaks to multi-million losses across years. November 2009 alone he won ~$5M then lost ~$4M+ to Hastings within weeks. Live tournament earnings: ~$5.5M including a 2013 PokerStars Caribbean Adventure $100K Super High Roller win for $1.25M. He remains one of the most volatile bankrolls in poker history.

Is Viktor Blom still playing poker in 2026?

Yes, but selectively. He left PokerStars as a Team Pro in 2017 and now plays primarily cash games online (when stakes are running) and occasional live super-high-roller events like Triton Poker Series. He is no longer the dominant nosebleed presence he was in 2009-2013, but remains active and respected. He keeps a low public profile, gives few interviews, and rarely streams.

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