Nick Giffen

Nick Giffen

1127 Posts
Nick Giffen
1127 Posts
Role
Predictive Analyst
Experience
10 years
Total Bets
3.6K
Followers
227.6K

Summary

Nick Giffen is a predictive analyst at Action Network and is the creator of the NFL Luck Rankings. He also hosts Bet What Happens Live! on Action Network’s YouTube channel during the NFL season, and co-hosts Running Hot, Action’s auto racing podcast.

Aside from the NFL, Nick uses his projection models to specialize in NASCAR betting and DFS, NCAA basketball player props, and projections for top soccer tournaments.

Experience

After getting his Ph.D. in mathematics, Nick worked in the biotechnology industry as a data analyst, working with large data sets to optimize corn to ethanol production. During that time, he also wrote about fantasy football and fantasy NASCAR for RotoViz. 

In 2016, he became a co-owner of RotoViz. Since then, Giffen has worked as a freelancer with FantasyLabs and the Action Network, before being hired as a full-time predictive analyst at Action in early 2022.

At Action, Giffen has developed in-game player prop models to live bet the NFL, which he uses on his show, Bet What Happens Live! He also pioneered Action's Luck Rankings, which have been used to bet NFL sides and totals successfully. 

Giffen frequently appears on several of Action's shows to talk NFL and college basketball, and he is a co-host of Running Hot, Action's motorsports betting podcast.

Education

Giffen graduated from James Madison University with a B.S. in Applied Mathematics. He earned a Ph.D. in Mathematics from N.C. State.

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1
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Nick Giffen's Picks

Today
Most Receiving Yards on Sunday (excl. ATL/IND): Jam. Williams+8000
0.05u
63
14
Pending
131
27
D.Smith o4.5 Recs-105
PHI
PHI Team Abbreviation@GB Team Abbreviation
GB
1.05u
11/11 1:15 AM
Devonta Smith over 4.5 Receptions (-105 at BetMGM, -106 at FD) Philadelphia should struggle to produce big plays here, especially in the passing game against a Packers defense that ranks 1st in preventing explosive pass plays, ninth in preventing explosive run plays, and first overall in preventing all explosive plays. That means Hurts is going to have to lead the team down the field through the shorter passing game against a Green Bay defense that leans zone heavy (10th highest rate of zone coverage in 2025). That should lead to more overall plays if they are to sustain drives rather than through frequent explosive TDs (most TDs of 25+ yards in the NFL), as the Packers have allowed just one TD longer than 25 yards. So why Smith as the pass catcher? First, lets look at coverage schemes. A.J. Brown's targets per route run drops from 41% vs. man coverage to just 17% against zone, while only RB Saquon Barkley and Devonta Smith increase of the Eagles top five receiving threats. The specific types of coverages also favor Smith, as he's the only frequent Eagle pass catcher who has positive efficiency relative to his season average against the types of coverages Green Bay tends to use at +8.4% per Fantasy Points data. The Packers relatively high rate of Cover 6 (14%, 10th most in the NFL), which is designed to use a zone double against the top WR, means Brown is likely to be marked out of a few extra routes, which should funnel targets to Smith, Dallas Goedert, and Barkley as the main alternative options. Philly receivers have only faced Cover 6 on about 4% of routes run this year, so that'll mark a notable increase should the Packers stick to their deployment of it at a top-10 rate. Now to matchup specifics. By lining up in the slot near or above a 50%+ rate, he'll most frequently face Packers nickel back Javon Bullard , the Packers' CB that has allowed the most receptions per route run between he (11.7%), Keisean Nixon (7.0%) and Carrington Valentine (8.2%). Additionally, Green Bay ranks No. 7 in defensive pass efficiency against deep passes, but just 23rd vs. shorter passes and top nine against passes to the left and right but just 25th against passes over the middle, where Smith operates somewhat frequently out of the slot. Per my Week 10 Luck Rankings piece, the Eagles are likely to regress toward their season-long scoring expectation -- which they are over by 35 points -- by not having explosive TDs, which would put them in serious danger of not covering the 2.5-point spread. So as the unlucky side likely to regress and fail to cover, that would put them in a pass-heavy game script, leading to a ton of shorter passing volume, which the matchup shows should funnel primarily through Smith, with Barkley and Goedert factoring in as well. I like a Smith ladder here as well, almost as high as you'd like to go.
186
30
Devonta Smith over 4.5 Receptions (-105 at BetMGM, -106 at FD) Philadelphia should struggle to produce big plays here, especially in the passing game against a Packers defense that ranks 1st in preventing explosive pass plays, ninth in preventing explosive run plays, and first overall in preventing all explosive plays. That means Hurts is going to have to lead the team down the field through the shorter passing game against a Green Bay defense that leans zone heavy (10th highest rate of zone coverage in 2025). That should lead to more overall plays if they are to sustain drives rather than through frequent explosive TDs (most TDs of 25+ yards in the NFL), as the Packers have allowed just one TD longer than 25 yards. So why Smith as the pass catcher? First, lets look at coverage schemes. A.J. Brown's targets per route run drops from 41% vs. man coverage to just 17% against zone, while only RB Saquon Barkley and Devonta Smith increase of the Eagles top five receiving threats. The specific types of coverages also favor Smith, as he's the only frequent Eagle pass catcher who has positive efficiency relative to his season average against the types of coverages Green Bay tends to use at +8.4% per Fantasy Points data. The Packers relatively high rate of Cover 6 (14%, 10th most in the NFL), which is designed to use a zone double against the top WR, means Brown is likely to be marked out of a few extra routes, which should funnel targets to Smith, Dallas Goedert, and Barkley as the main alternative options. Philly receivers have only faced Cover 6 on about 4% of routes run this year, so that'll mark a notable increase should the Packers stick to their deployment of it at a top-10 rate. Now to matchup specifics. By lining up in the slot near or above a 50%+ rate, he'll most frequently face Packers nickel back Javon Bullard , the Packers' CB that has allowed the most receptions per route run between he (11.7%), Keisean Nixon (7.0%) and Carrington Valentine (8.2%). Additionally, Green Bay ranks No. 7 in defensive pass efficiency against deep passes, but just 23rd vs. shorter passes and top nine against passes to the left and right but just 25th against passes over the middle, where Smith operates somewhat frequently out of the slot. Per my Week 10 Luck Rankings piece, the Eagles are likely to regress toward their season-long scoring expectation -- which they are over by 35 points -- by not having explosive TDs, which would put them in serious danger of not covering the 2.5-point spread. So as the unlucky side likely to regress and fail to cover, that would put them in a pass-heavy game script, leading to a ton of shorter passing volume, which the matchup shows should funnel primarily through Smith, with Barkley and Goedert factoring in as well. I like a Smith ladder here as well, almost as high as you'd like to go.
100
22
Devonta Smith over 4.5 Receptions (-105 at BetMGM, -106 at FD) Philadelphia should struggle to produce big plays here, especially in the passing game against a Packers defense that ranks 1st in preventing explosive pass plays, ninth in preventing explosive run plays, and first overall in preventing all explosive plays. That means Hurts is going to have to lead the team down the field through the shorter passing game against a Green Bay defense that leans zone heavy (10th highest rate of zone coverage in 2025). That should lead to more overall plays if they are to sustain drives rather than through frequent explosive TDs (most TDs of 25+ yards in the NFL), as the Packers have allowed just one TD longer than 25 yards. So why Smith as the pass catcher? First, lets look at coverage schemes. A.J. Brown's targets per route run drops from 41% vs. man coverage to just 17% against zone, while only RB Saquon Barkley and Devonta Smith increase of the Eagles top five receiving threats. The specific types of coverages also favor Smith, as he's the only frequent Eagle pass catcher who has positive efficiency relative to his season average against the types of coverages Green Bay tends to use at +8.4% per Fantasy Points data. The Packers relatively high rate of Cover 6 (14%, 10th most in the NFL), which is designed to use a zone double against the top WR, means Brown is likely to be marked out of a few extra routes, which should funnel targets to Smith, Dallas Goedert, and Barkley as the main alternative options. Philly receivers have only faced Cover 6 on about 4% of routes run this year, so that'll mark a notable increase should the Packers stick to their deployment of it at a top-10 rate. Now to matchup specifics. By lining up in the slot near or above a 50%+ rate, he'll most frequently face Packers nickel back Javon Bullard , the Packers' CB that has allowed the most receptions per route run between he (11.7%), Keisean Nixon (7.0%) and Carrington Valentine (8.2%). Additionally, Green Bay ranks No. 7 in defensive pass efficiency against deep passes, but just 23rd vs. shorter passes and top nine against passes to the left and right but just 25th against passes over the middle, where Smith operates somewhat frequently out of the slot. Per my Week 10 Luck Rankings piece, the Eagles are likely to regress toward their season-long scoring expectation -- which they are over by 35 points -- by not having explosive TDs, which would put them in serious danger of not covering the 2.5-point spread. So as the unlucky side likely to regress and fail to cover, that would put them in a pass-heavy game script, leading to a ton of shorter passing volume, which the matchup shows should funnel primarily through Smith, with Barkley and Goedert factoring in as well. I like a Smith ladder here as well, almost as high as you'd like to go.
106
22
Lowest Scoring Team (Regular Season): NY Jets+900
1u
3rd lowest Expected Score last year 4th largest O-line downgrade (-$30m AAV per 4for4) Jets opposing D's spent most $ of all 32 schedules Fields/Tyrod not upgrades/likely downgrades & will run more w/Fields eating clock 5th unluckiest set of opponents from last year (opponents regression to better results) Tankapalooza
50
11
Futures
Past Performance
Yesterday0-0-00%
0.00u
Last 7 Days28-23-055%
11.95u
Last 30 Days56-64-047%
13.06u
All Time1203-2379-2033%
295.72u
Top Leagues
NFL461-686-940%
119.61u
NCAAB419-344-854%
102.60u
NASCAR254-1195-218%
52.62u
NHL3-1-075%
3.57u
World Cup13-26-033%
1.18u
FORMULA_ONE0-1-00%
-0.50u
NASCAR_XFINITY0-1-00%
-0.50u
Women's World Cup1-4-020%
-0.95u
MLB2-4-033%
-1.71u
European Championship17-49-125%
-3.47u
Betting Highlights
Favorite Bet of All-Time
I bet on my favorite driver Kyle Kirkwood at 20-1 to win the Long Beach Grand Prix. I went to the race and watched him win it in person for his first career IndyCar win. It was the first time I watched him race an IndyCar in person, so I'm officially his good luck charm.
Specialties
  • NASCAR Expert
  • NFL Luck Rankings
  • NCAAB Player Props