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
280.6K

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 project Jeudy’s median closer to 37.5 yards. This will be Dillon Gabriel’s first career start, and I expect the Browns to lean more on the run in a tough debut spot against a Brian Flores defense. They’re only 4.5-point underdogs, and with the Browns defense facing a Vikings offense missing several linemen, a conservative, run-heavy game plan makes sense. That should limit dropbacks, and Gabriel will likely scramble more than Joe Flacco, which could take away another 1-2 pass attempts. Some bettors may be playing Jeudy’s over with Cedric Tillman out, but that likely just means rookie Isaiah Bond sees more snaps. Bond has actually posted a higher target rate than Tillman, so Jeudy may not see much of a bump. This is also a tough matchup against a zone-heavy defense that should funnel more targets to David Njoku and Harold Fannin Jr. Jeudy’s numbers take a big hit against zone: a 13% target rate and 0.44 yards per route run, compared to 23% and 1.21 vs. man. I considered overs on Bond or Fannin, but the market is efficient there and both face the same run-heavy game environment. Jeudy, though, checks the boxes for a fade, making his under my favorite angle in this matchup.
185
27
Trust me, I know how good Nico is and the injuries in the Ravens secondary (which is why his prop has been bumped up a handful of yards) and that’s the path for him to clear this number for the 3rd straight game. I wouldn’t be shocked if he does. But there are several factors working against him. Roquan Smith being out is a big blow to a run defense that already ranks 29th in DVOA. That should let the Texans lean more on the run, especially with rookie Woody Marks emerging last week. On the other side, Lamar Jackson is out, so the Ravens are likely to slow things down and improve in terms of time of possession (2nd lowest in league so far). Typically playing in Baltimore would lead to more pass volume for the Texans, but that’s been sort of flipped with Lamar out. Since Christian Kirk’s season debut, Nico’s target share has dropped 3%. Kirk’s only caught 50% of his targets (70% expected), so some positive regression there could siphon more production away from Nico. Add in kicker Tyler Loop’s struggles with the new kickoff rule (opponents start at the 33 on average, 4th worst in the league) and Houston could see shorter fields that cut into yardage totals. I project Nico around 5 catches, which lines up with the market. Using his 2 year average of nearly 15 yards per reception, he comes out closer to 75 yards (i.e. the market’s back of the napkin math to arrive at this number). In 10,000 sims, he stays under 74.5 about 60% of the time (his median being closer to 66.5). Sure, he has his share of 100+ yard games in there (I can literally see them in the sim lol), but overall this line is a little too high. This isn’t “Nico sucks, fade Nico.” There are just a few factors in play here the market might be overlooking.
108
23
This was my favorite bet from the TD show (out now). The last two games (since Ekeler went down) the Commanders RB rotation has been straightforward: CRod is the lead early down back on the first two drives then backs up Bill on early downs the rest of the game. As a result, he’s seen 40% of his rush attempts in the 1st quarter and makes him a sneaky value in the 1st TD market. Projecting his fair odds closer to +950 based on his heavy 1Q usage.
138
29
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”.
D.Montgomery Anytime TD Scorer Yes-180
DET
DET Team Abbreviation@CIN Team Abbreviation
CIN
10/05 8:25 PM
DET -600
DET
DET Team Abbreviation@CIN Team Abbreviation
CIN
10/05 8:25 PM
208
44
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%
-1.85u
Last 30 Days28-38-042%
-4.47u
All Time1889-1529-3155%
217.48u
Top Leagues
NFL1071-853-1955%
123.56u
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