Nick Giffen

Nick Giffen

1354 Posts
Nick Giffen
1354 Posts
Role
Senior Predictive Analyst
Experience
10 years
Total Bets
4.5K
Followers
437.3K

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.

Specialties

  • NASCAR Expert
  • NFL Luck Rankings
  • NCAAB Player Props
More from Nick Giffen
Dr. Nick's 5 NFL Player Prop Picks for Sunday ImageNFL

Dr. Nick's 5 NFL Player Prop Picks for Sunday

Nick Giffen
Oct 10, 2026 UTC
PRO
NFL Luck Rankings Picks for Week 3 Image
NFL

NFL Luck Rankings Picks for Week 3

Nick Giffen
Sep 27, 2026 UTC
PRO
NFL Luck Rankings Picks for Week 2 Image
NFL

NFL Luck Rankings Picks for Week 2

Nick Giffen
Sep 17, 2026 UTC
1
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Nick Giffen's Picks

Today
Pending
Philadelphia hasn't exactly played rushing juggernaut QBs, facing Matthew Stafford, Cam Ward, and Case Keenum in three of four games so far this season. But in the one game they did play a rushing QB, they held Jayden Daniels to 31 yards -- 19 yards below his career average. The Eagles just don't create pressure, ranking bottom five in raw pressure and pressure rate over expectation so far this season. They also play zone coverage at a top-10 rate, so QBs are much less inclined to scramble without pressure and with defenders facing them in zone coverage instead of turning their backs in man coverage. Lawrence is hovering at a career low for rushing attempts per game, thanks in part to the Jags 3-1 start. As about a touchdown favorite here, he shouldn't need to scramble any more than he already has been, so my model projects just 1.7 scrambles at 7.8 yards a pop. There's the occasional designed run or sneak, but those are mostly offset by potential kneeldowns, so I'm projecting Lawrence for an average of 15 yards. But that's the average. His median is 12 yards, with a 59% chance to stay under 15.5 yards. This is still playable at under 14.5 yards as well, but that's as low as I'd go.
61
12
Anyone want a Jameis sweat? Me too. Winston hasn't run much this year, scrambling just one time in three starts. But he's also faced teams that all rank in the bottom half in pressure rate, including two in the bottom third of the league. Washington's pressure rate has been better than all three teams so far this season, and it shows in the numbers, allowing 2.2 QB scrambles per game compared to 1.9 expected from the QBs they've faced. The Rams, Titans, and Cardinals have each allowed fewer scrambles per game than the Commanders, and two of the three also allow fewer scrambles per game than expected, so Winston really has been playing defenses that just don't allow scrambles. In Jameis' games playing most of the snaps as a Giant, he's averaged 7.6 yards rushing per game, and since 2022 when he stopped becoming a regular rusher, he's still averaged 7.9 yards per game in games where he played the majority of the snaps, with a median of 7 yards. I don't expect him to run a ton, but a single scramble is likely to push us over, and there's potential for more than one, as well as the occasional sneak or designed run mixed in.
71
16
My model is projecting Slye for 1.62 field goals, and I think part of the reason we're getting a discount here is because of the weather that's been plaguing the eastern half of the U.S. this weekend. But current NOAA models show that winds should start dying down around kickoff and continue to die off throughout the game, while precipitation should be minimal to none. That means there's almost no impact on Slye's kicking prop from the weather. I also have an injury system play on the Titans here, and the matchup tool in the Luck Rankings Dashboard also shows that Tennessee has had the unluckier offense and defense by win probability. That means I think Tennessee can keep it within one score, and in a low scoring game field goals could be at a premium.
45
7
Miami ranks in the bottom six in neutral pace depending on how you define neutral, and even when trailing Miami doesn't speed up much, ranking 15th of 21 teams with at least 30 second-half plays while trailing by a touchdown or more. The Dolphins also have the lowest pass rate over expectation (PROE) of the five teams Burrow will have faced this year, which should also help the clock run. On the Bengals side of the ball, my offensive and defensive line ratings in the Luck Rankings Dashboard show that the Dolphins are actually the worst run defense of the five the Bengals will have faced this year, meaning they could possibly lean on the run here more than they have all season. And I suspect the Bengals would be inclined to run the ball a bit more anyway with WRs Ja'Marr Chase, Tee Higgins, and Colbie Young all questionable. Also, I've created two new bettings systems in the Luck Rankings Dashboard for betting NFL sides, and the Bengals fit both. When both of these systems fire on the same team, these teams are 242-178-13 ATS (57.6%), including 8-1-1 this year. If they do cover, the touchdown spread, that means they'll have a big lead and can take the air out of the ball.
59
15
Much has been made of Watson's INT luck, and while it is true with just two picks on seven TWPs, we also have to consider longer-term form and the matchup. Watson's career INT rate is 2.1% both with Houston and with Cleveland. At his consensus line of 31 pass attempts, that's a projection of 0.65 INTs, which is an average not a median. At that projection, he'd throw no INTs around 52% of the time. The Browns also have a nice passing game matchup where Watson shouldn't face a ton of pressure, with the Jets ranking near the bottom of the league in pressure rate. The defenses Watson has faced have also been ball hogs, all ranking in the top half in passes defended and INTs per game, so his deserved INTs per game will look inflated since he's played a tough schedule. The Jets? They rank fourth worst in passes defended and have just one pick on the year. They forced just one TWP total against Cam Ward and Jordan Love (0.5 per game), who have a combined 11 in their six other starts (1.83 per game). In all, the Jets have just TWPs forced in four games, or 0.5 per game Since just over half of all TWPs turn into INTs, that means they are forcing around 0.25-0.3 expected INTs per game so far...gross. And by passes defended, they've forced around just 0.56 expected INTs per game, well below league average of 0.7 or so. So Watson's 0.65 projection above would be against an average defense, but the Jets are far below average. They play the fifth-most two-high safety in the league including the most Cover 2, which is why teams are throwing passes on them with the third-shortest average depth of target. Short passes have a lower interception rate. Finally, my projection has Watson throwing less than the 31 attempts the market implies, in part thanks to the weather which calls for near consistent rain and wind with gusts into the 20s, but also because I think they cover, and possibly win outright here. The Browns are healthier and fit one of my injury-based betting systems, and dominate the OL/DL matchup in the Luck Rankings Dashboard. I have Watson pretty strongly favored to not throw a pick here.
44
9
The Raiders have allowed just a 58.7% pass completion rate this year, and while that's unsustainable, what is sustainable is the fact that they allow the second-longest average depth of target against defensively. That means more long passes which are less likely to be completed, and when they are completed they go for more yards, shortening the number of completions Maye would need to move the ball down the field. Las Vegas has generated fantastic pressure on the QB this year, ranking inside the top-10 in raw and relative to expectation, with some sites giving them a pressure rate as high as second-most in the NFL. Either way, Drake Maye should be under duress quite a bit. Maye's average depth of target increases by roughtly three yards since the start of last year and his completion percentage drops by more than 20 percentage points. More pressure also means more scrambles and/or sacks, eliminating some extra plays that would ordinarily be pass attempts. The Raiders have allowed the fifth-fewest targets to RBs despite a 3-1 record and a generally positive game script, showing how well they are doing at eliminating short passes thanks to the pressure as well as an above average rate of man marking, forcing RBs to stay in and block more or be marked out of the play, thus forcing passes downfield. One other interesting point from the Luck Rankings Dashboard. Maye's receivers have dropped just two passes this year, compared to four expected. An extra drop would hurt the completions as well. I have Maye projected for less than the 30 pass attempts the market has him at, and a slightly lower completion percentage than the 65% the market implies as well. I have about a full completion under the 19.5 projected.
29
3
Chase Elliott +100 (Top 10)
Bank of America 400
1u
#RunningHot
58
14
Ricky Stenhouse +1100 (Top 10)
Bank of America 400
0.1u
#RunningHot
49
13
Tyler Reddick +155 (Top 5)
Bank of America 400
0.75u
#RunningHot
48
15
Alex Bowman +250 (Top 10)
Bank of America 400
0.5u
65
14
Daniel Suárez +250 (Top 10)
Bank of America 400
0.5u
58
13
Futures
Trevor Lawrence+1600
2026 NFL Regular Season - Most Interceptions Thrown
0.25u
Ranks No. 1 in my model's "true INT/G rate" among starters that would play a full season if no injury. Good at 14-1 at Caesars
46
19
Past Performance
Yesterday0-0-00%
0.00u
Last 7 Days5-12-029%
-4.32u
Last 30 Days40-64-038%
2.47u
All Time1490-3035-2433%
332.99u
Top Leagues
NFL580-908-1139%
107.12u
NASCAR322-1460-218%
99.72u
NCAAB467-405-853%
97.66u
World Cup53-101-234%
4.97u
NHL4-1-080%
4.69u
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.