Sean Koerner

Sean Koerner

2304 Posts
Sean Koerner
2304 Posts
NFL, college football, college basketball, player projections. have created team/player projection models for essentially every sport at some point
Role
Director of Predictive Analytics
Experience
20 years
Location
Los Angeles
Total Bets
3.4K
Followers
279.2K

Summary

Sean runs the predictive analytics at Action Network. From the in-game win probabilities in the award-winning Action Network app, to the DFS models on FantasyLabs, to the fantasy football rankings across the network. He also churns out fantasy/betting content for the NFL and is co-host for the Fantasy Flex pod and the betting show Convince Me

Sean creates projects for nearly every sport, from the WNBA to MLB to college hoops and everything in between.

Experience & Accolades

Sean is one of the most decorated fantasy analysts in the industry, finishing first in the FantasyPros In-Season Accuracy standings in 2023 – which measures almost all fantasy football analysts on their in-season projections over the course of the season. You can read more about their methodology here. He also won the in-season ranking title in 2015, 2016 and 2017. This past season, he not only finished first overall, but was the No. 1 ranker out of 180+ entrants in running back, wide receiver and kicker rankings. He was top 10 in quarterbacks and tight ends, as well.

His 2023 performance was arguably the best in the contest’s history:

  • It was a record fourth No. 1 finish in the accuracy contest
  • He was the first expert in history to be No. 1 at multiple positions (RB + WR)
  • He was the expert to finish top 10 at every position

Sean started to become obsessed with sports betting & fantasy football ever since his father took him to Las Vegas for his annual fantasy football draft (at 8 years old). Sean started trying to project teams/players ever since and almost every action/decision he's made since has led him to where he is today. He began betting 20 years ago and began his sports betting/fantasy sports career as soon as he graduated from college in 2007. Prior to joining Action in 2018, he worked for MGM, RotoHog/FastPoint games, Bloomberg Sports, STATS.

Sean began his betting career in college by building sports betting models. He eventually turned into a bookie in college before moving to Vegas to work at Excalibur Sportsbook as a supervisor. He decided to move back to California to begin a career in fantasy sports/betting at RotoHog as a product manager. That was when he began entering his season-long fantasy projections into the FSTA contests and won the award for most accurate season-long NFL & MLB projections 2-3 times each.

He then moved to NY to work for Bloomberg Sports as a product manager and Head of Projections. They were eventually acquired by STATS where he maintained the same role as a product manager. That was when he began entering his weekly NFL rankings into the FantasyPros accuracy contest and won first place 3 years in a row from 2015-2017. He joined Action Network in 2018.

Education

Sean has a BA in Psychology from Long Beach State and took multiple advanced stats classes. He spent most of his time in the library reading stats/sports betting books creating prediction models and using them to bet on various sports (MLB, NFL, NBA, WNBA, etc.).

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Sean Koerner's Picks

Today
Pending
I’m projecting Mac closer to 34.1 attempts tonight. San Francisco is now sitting as a 7.5 to 8.5-point dog with Brock Purdy out, and their top two starting WRs already ruled out. Brandon Aiyuk and George Kittle are still out as well. So, yes, he’s working with second and third-string receivers, but those are actually the guys he’s thrown to the most in practice. Kendrick Bourne in particular already has chemistry with Mac from their time together in New England. They’re expected to play from behind at a much higher rate than they have been this season, which naturally pushes their playcalling in a more pass-heavy direction even with the downgraded receiver group. When Mac has been under center, the 49ers have posted a +9.6% PROE compared to -2.7% with Purdy. Probably just noise, but still a massive swing. The biggest thing working for pass attempts here is how stationary Mac is. He has scrambled once all year and is supposedly wearing a knee brace tonight, so the chances of him taking off are even lower. If he drops back and doesn’t get sacked, it’s usually going in the books as a pass attempt. He’s also throwing the ball away at a high rate this season, which is exactly the kind of empty play you want when betting this type of prop. His average depth of target is 7.0 compared to Purdy’s 7.6. That may not sound like much, but lower aDOT quarterbacks can rack up a couple of extra attempts just by checking down more often. All of these factors lead Mac to deserving a higher pass attempt prop than we would give Purdy here. One last edge that I don’t think is being priced in at all: Rams kicker Josh Karty basically mastered the new kickoff rule already. Opposing teams are starting drives at their own 21.7-yard line on average, which is dead last in the league. Longer fields equal more potential plays, which equals more dropbacks, which equals more attempts. I like the Over at 32.5 up to -140
216
37
2-WAY PARLAY+188
0.2u
Mall Santa parlay
M.Jones u5.5 Rush Yds-123
SF
SF Team Abbreviation@LA Team Abbreviation
LA
10/03 12:15 AM
76
20
2-WAY PARLAY-128
0.64u
This will be Monty’s first NFL game in his hometown (Cincy) and will have family & friends at the game, including his sister, who he is very emotional about being able to attend. Dan Campbell is a player’s coach and you better believe will go out of his way to give him more work here (especially around the goal line). This is a situation that goes beyond standard projections and it’s priced high for this reason, but going to parlay it with Lions ML (what could go wrong 😂) because they are correlated and complete the “Monty homecoming special”.
66
10
Futures
Matthew Stafford o22.5-114
2025 NFL Regular Season - Total Passing TDs
0.57u
Discussed this on The Favorites
70
24
Cooper Kupp u700.5-114
2025 NFL Regular Season - Total Receiving Yards
1.14u
86
24
Javonte Williams u525.5-115
2025 NFL Regular Season - Total Rushing Yards
1.15u
48
16
Jared Verse o7.5-135
2025 NFL Regular Season - Total Sacks
1.35u
49
16
Past Performance
Yesterday0-0-00%
0.00u
Last 7 Days7-10-041%
-1.73u
Last 30 Days26-39-040%
-5.64u
All Time1887-1529-3155%
216.61u
Top Leagues
NFL1069-853-1955%
122.69u
MLB290-245-454%
40.18u
NCAAB262-210-355%
28.85u
WNBA147-118-355%
19.47u
NCAAF36-23-259%
6.62u
UFL5-4-056%
0.60u
Golf0-3-00%
-0.60u
NBA78-71-052%
-1.01u
Betting Highlights
Favorite Bet of All-Time
Patrick Mahomes under 30.5 rushing yards for Super Bowl LIV. He had 44 yards going into the final drive. Kneeled down 3 times for -15 yards to drop down to 29 yards and hit the under
Most Heartbreaking Bet
Max bet Jimmy Graham under 23.5 rec yards in the WC playoff game against NO in 2020. He had 6 yards heading into the final drive with the Bears down 3-21. On the final play of the game, Mitch Trubisky finds Graham in the back of the end zone for an insane one handed grab for a 19-yard garbage time TD. Graham finished with 25 yards and I'm still tilted by this. Side note: Stuckey was on this prop with me.
Specialties
  • NFL
  • College football
  • College basketball
  • Player projections
  • Have created team/player projection models for essentially every sport at some point