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BoP Lab / Classes / FV

FV vs P2 vs SMX pace at every track

Lap times across years say as much about the weather as the class. % of FV is each class's best lap as a share of FV's on the same day, so the conditions drop out: 100% is level, less is quicker, and a move in it is the class getting faster or slower against the field.

Class · click a class to switch, + to compare alongside (up to 4)
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: FV 100.0% of FV Andrew Whitston, Daytona International Speedway Runoffs 2015 race · P2 77.8% of FV Bart Wolf, Road America Runoffs 2024 race · SMX 94.0% of FV Skyler Cottrell, Road America Runoffs 2026 qualifying

1:201:402:002:202:4015 rule changes between Runoffs 2018 and Runoffs 201915 ▾12 rule changes between Runoffs 2019 and Runoffs 202012 ▾8 rule changes between Runoffs 2020 and Runoffs 20218 ▾14 rule changes between Runoffs 2021 and Runoffs 202214 ▾8 rule changes between Runoffs 2022 and Runoffs 20238 ▾11 rule changes between Runoffs 2023 and Runoffs 202411 ▾6 rule changes between Runoffs 2024 and Runoffs 20256 ▾2 rule changes between Runoffs 2025 and Runoffs 20262 ▾FV race best at Runoffs 2015: 2:21.142 (Andrew Whitston)FV race best at Runoffs 2016: 1:38.066 (Flinn Lazier)FV race best at Runoffs 2017: 1:55.923 (Michael Varacins)FV race best at Runoffs 2018: 1:53.639 (Alex Scaler)FV race best at Runoffs 2019: 2:18.289 (Zachary Whitston)FV race best at Runoffs 2020: 2:45.816 (Alex Scaler)FV race best at Runoffs 2021: 1:57.234 (Alex Scaler)FV race best at Runoffs 2022: 2:18.093 (Andrew Whitston)FV race best at Runoffs 2023: 2:16.611 (Andrew Abbott)FV race best at Runoffs 2024: 2:44.834 (Andrew Abbott)FV race best at Runoffs 2025: 2:46.736 (Zachary Whitston)FV race best at Runoffs 2026: 2:45.272 (Brian Farnham)FV qualifying best at Runoffs 2015: 2:21.167 (Roger Siebenaler)FV qualifying best at Runoffs 2016: 1:37.942 (Alex Scaler)FV qualifying best at Runoffs 2017: 1:55.759 (Michael Varacins)FV qualifying best at Runoffs 2018: 1:52.637 (Skip Streets)FV qualifying best at Runoffs 2019: 2:15.712 (Andrew Whitston)FV qualifying best at Runoffs 2020: 2:43.994 (Hunter Phelps-Barron)FV qualifying best at Runoffs 2021: 1:57.479 (Andrew Whitston)FV qualifying best at Runoffs 2022: 2:15.116 (Brian Farnham)FV qualifying best at Runoffs 2023: 2:15.639 (Andrew Whitston)FV qualifying best at Runoffs 2024: 2:42.643 (Andrew Whitston)FV qualifying best at Runoffs 2025: 2:44.101 (Andrew Abbott)FV qualifying best at Runoffs 2026: 2:46.536 (Zachary Whitston)P2 race best at Runoffs 2015: 1:52.355 (Jeff Shafer)P2 race best at Runoffs 2016: 1:20.904 (Jeff Shafer)P2 race best at Runoffs 2017: 1:32.481 (Jeff Shafer)P2 race best at Runoffs 2018: 1:32.071 (Chuck Bona)P2 race best at Runoffs 2019: 1:50.258 (Greg Gyann)P2 race best at Runoffs 2020: 2:09.793 (Robert Iversen)P2 race best at Runoffs 2021: 1:35.322 (Tim Day Jr)P2 race best at Runoffs 2022: 2:15.834 (Greg Gyann)P2 race best at Runoffs 2023: 1:48.829 (Lucian Pancea)P2 race best at Runoffs 2024: 2:08.322 (Bart Wolf)P2 race best at Runoffs 2026: 2:09.441 (Mike Reupert)P2 qualifying best at Runoffs 2015: 1:51.825 (Chris Farrell)P2 qualifying best at Runoffs 2016: 1:20.188 (Jeff Shafer)P2 qualifying best at Runoffs 2017: 1:31.826 (Jeff Shafer)P2 qualifying best at Runoffs 2018: 1:28.784 (Tim Day Jr)P2 qualifying best at Runoffs 2019: 1:49.111 (Robert Iversen)P2 qualifying best at Runoffs 2020: 2:08.514 (Robert Iversen)P2 qualifying best at Runoffs 2021: 1:33.235 (Tim Day Jr)P2 qualifying best at Runoffs 2022: 1:47.566 (Tim Day Jr)P2 qualifying best at Runoffs 2023: 1:48.590 (Greg Gyann)P2 qualifying best at Runoffs 2024: 2:07.405 (Bart Wolf)P2 qualifying best at Runoffs 2026: 2:10.606 (Greg Gyann)SMX race best at Runoffs 2023: 2:12.616 (Noah Harmon)SMX race best at Runoffs 2024: 2:36.278 (Ethan Jacobs)SMX race best at Runoffs 2025: 2:37.091 (Michael Tinis)SMX race best at Runoffs 2026: 2:36.414 (Cam Ebben)SMX qualifying best at Runoffs 2023: 2:11.435 (Nathan Nicholson)SMX qualifying best at Runoffs 2024: 2:35.651 (Ethan Lampe)SMX qualifying best at Runoffs 2025: 2:36.232 (Cam Ebben)SMX qualifying best at Runoffs 2026: 2:36.472 (Skyler Cottrell)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
FVP2SMXsolid race · dashed qualifying · slower is lower
80%85%90%95%100%15 rule changes between Runoffs 2018 and Runoffs 201915 ▾12 rule changes between Runoffs 2019 and Runoffs 202012 ▾8 rule changes between Runoffs 2020 and Runoffs 20218 ▾14 rule changes between Runoffs 2021 and Runoffs 202214 ▾8 rule changes between Runoffs 2022 and Runoffs 20238 ▾11 rule changes between Runoffs 2023 and Runoffs 202411 ▾6 rule changes between Runoffs 2024 and Runoffs 20256 ▾2 rule changes between Runoffs 2025 and Runoffs 20262 ▾FV race best at Runoffs 2015: 100.0% of FV's (Andrew Whitston)FV race best at Runoffs 2016: 100.0% of FV's (Flinn Lazier)FV race best at Runoffs 2017: 100.0% of FV's (Michael Varacins)FV race best at Runoffs 2018: 100.0% of FV's (Alex Scaler)FV race best at Runoffs 2019: 100.0% of FV's (Zachary Whitston)FV race best at Runoffs 2020: 100.0% of FV's (Alex Scaler)FV race best at Runoffs 2021: 100.0% of FV's (Alex Scaler)FV race best at Runoffs 2022: 100.0% of FV's (Andrew Whitston)FV race best at Runoffs 2023: 100.0% of FV's (Andrew Abbott)FV race best at Runoffs 2024: 100.0% of FV's (Andrew Abbott)FV race best at Runoffs 2025: 100.0% of FV's (Zachary Whitston)FV race best at Runoffs 2026: 100.0% of FV's (Brian Farnham)FV qualifying best at Runoffs 2015: 100.0% of FV's (Roger Siebenaler)FV qualifying best at Runoffs 2016: 100.0% of FV's (Alex Scaler)FV qualifying best at Runoffs 2017: 100.0% of FV's (Michael Varacins)FV qualifying best at Runoffs 2018: 100.0% of FV's (Skip Streets)FV qualifying best at Runoffs 2019: 100.0% of FV's (Andrew Whitston)FV qualifying best at Runoffs 2020: 100.0% of FV's (Hunter Phelps-Barron)FV qualifying best at Runoffs 2021: 100.0% of FV's (Andrew Whitston)FV qualifying best at Runoffs 2022: 100.0% of FV's (Brian Farnham)FV qualifying best at Runoffs 2023: 100.0% of FV's (Andrew Whitston)FV qualifying best at Runoffs 2024: 100.0% of FV's (Andrew Whitston)FV qualifying best at Runoffs 2025: 100.0% of FV's (Andrew Abbott)FV qualifying best at Runoffs 2026: 100.0% of FV's (Zachary Whitston)P2 race best at Runoffs 2015: 79.6% of FV's (Jeff Shafer)P2 race best at Runoffs 2016: 82.5% of FV's (Jeff Shafer)P2 race best at Runoffs 2017: 79.8% of FV's (Jeff Shafer)P2 race best at Runoffs 2018: 81.0% of FV's (Chuck Bona)P2 race best at Runoffs 2019: 79.7% of FV's (Greg Gyann)P2 race best at Runoffs 2020: 78.3% of FV's (Robert Iversen)P2 race best at Runoffs 2021: 81.3% of FV's (Tim Day Jr)P2 race best at Runoffs 2022: 98.4% of FV's (Greg Gyann)P2 race best at Runoffs 2023: 79.7% of FV's (Lucian Pancea)P2 race best at Runoffs 2024: 77.8% of FV's (Bart Wolf)P2 race best at Runoffs 2026: 78.3% of FV's (Mike Reupert)P2 qualifying best at Runoffs 2015: 79.2% of FV's (Chris Farrell)P2 qualifying best at Runoffs 2016: 81.9% of FV's (Jeff Shafer)P2 qualifying best at Runoffs 2017: 79.3% of FV's (Jeff Shafer)P2 qualifying best at Runoffs 2018: 78.8% of FV's (Tim Day Jr)P2 qualifying best at Runoffs 2019: 80.4% of FV's (Robert Iversen)P2 qualifying best at Runoffs 2020: 78.4% of FV's (Robert Iversen)P2 qualifying best at Runoffs 2021: 79.4% of FV's (Tim Day Jr)P2 qualifying best at Runoffs 2022: 79.6% of FV's (Tim Day Jr)P2 qualifying best at Runoffs 2023: 80.1% of FV's (Greg Gyann)P2 qualifying best at Runoffs 2024: 78.3% of FV's (Bart Wolf)P2 qualifying best at Runoffs 2026: 78.4% of FV's (Greg Gyann)SMX race best at Runoffs 2023: 97.1% of FV's (Noah Harmon)SMX race best at Runoffs 2024: 94.8% of FV's (Ethan Jacobs)SMX race best at Runoffs 2025: 94.2% of FV's (Michael Tinis)SMX race best at Runoffs 2026: 94.6% of FV's (Cam Ebben)SMX qualifying best at Runoffs 2023: 96.9% of FV's (Nathan Nicholson)SMX qualifying best at Runoffs 2024: 95.7% of FV's (Ethan Lampe)SMX qualifying best at Runoffs 2025: 95.2% of FV's (Cam Ebben)SMX qualifying best at Runoffs 2026: 94.0% of FV's (Skyler Cottrell)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
FVP2SMXsolid race · dashed qualifying · each class's best lap as a share of FV's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventFVP2SMX
Qual best Race best Trap Qual best Race best Trap vs FV % of FV Qual best Race best Trap vs FV % of FV 
Road America Runoffs 20262026-09-282:46.536Zachary Whitston · fastest of 37 · top 5 within 1.7s+2.435s (+1.48%)2:45.272Brian Farnham · fastest of 34 · top 5 within 1.3s-1.464s (-0.88%)117.4Rick Shields+0.2 mph (+0.1%)2:10.606Greg Gyann · fastest of 11 · top 5 within 5.3s+3.201s (+2.51%)2:09.441Mike Reupert · fastest of 11 · top 5 within 4.2s+1.119s (+0.87%)155.0Matt Strand+2.4 mph (+1.6%)-35.831squal -35.930s78.3%qual 78.4%2:36.472Skyler Cottrell · fastest of 21 · top 5 within 0.4s+0.240s (+0.15%)2:36.414Cam Ebben · fastest of 21 · top 5 within 1.1s-0.677s (-0.43%)128.4Christian Hoagland-0.6 mph (-0.5%)-8.858squal -10.064s94.6%qual 94.0%
2 rule changes (SMX: 2)1 wording · 1 othershowhide
  • SMX Rear Toe Link #40271other
  • SMX Part Number Change Request #39914wording
Road America Runoffs 20252025-09-292:44.101Andrew Abbott · fastest of 34 · top 5 within 1.3s+1.458s (+0.90%)2:46.736Zachary Whitston · fastest of 29 · top 5 within 0.6s+1.902s (+1.15%)117.2Zachary Whitston+0.7 mph (+0.6%)2:36.232Cam Ebben · fastest of 20 · top 5 within 0.2s+0.581s (+0.37%)2:37.091Michael Tinis · fastest of 19 · top 5 within 0.3s+0.813s (+0.52%)129.1Camden Gruber-0.4 mph (-0.3%)-9.645squal -7.869s94.2%qual 95.2%
6 rule changes (P2: 1, SMX: 5)1 tyres & wheels · 1 weight · 1 wording · 3 othershowhide
  • SMX SMX Data Submission - Penalties #38248other
  • SMX SMX Penaly Clarification updated language #38337wording
  • SMX Clarify Tire Marking Regs #38004tyres & wheels
  • SMX SMX Data Submission Timeframe #38039other
  • P2 2000 cc Pinto Engine Car Weight #37187weight
  • SMX E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
Road America Runoffs 20242024-10-012:42.643Andrew Whitston · fastest of 27 · top 5 within 2.3s-1.351s (-0.82%)2:44.834Andrew Abbott · fastest of 27 · top 5 within 0.9s-0.982s (-0.59%)116.5Brian Farnham-0.7 mph (-0.6%)2:07.405Bart Wolf · fastest of 14 · top 5 within 3.0s-1.109s (-0.86%)2:08.322Bart Wolf · fastest of 13 · top 5 within 0.6s-1.471s (-1.13%)152.5Lucian Pancea-0.6 mph (-0.4%)-36.512squal -35.238s77.8%qual 78.3%2:35.651Ethan Lampe · fastest of 23 · top 5 within 0.7s2:36.278Ethan Jacobs · fastest of 22 · top 5 within 0.7s129.5Michael Borden-8.556squal -6.992s94.8%qual 95.7%
11 rule changes (FV: 2, P2: 5, SMX: 4)5 engine · 2 suspension & brakes · 2 tyres & wheels · 1 wording · 1 othershowhide
  • FV Disc Brakes #36822suspension & brakes
  • SMX SMX Camera Rule Correction #36496wording
  • SMX AIM ECU Protocol #36556engine
  • SMX OE versus OEM Definitons #36608other
  • SMX Shifter Bushing #36611suspension & brakes
  • P2 CN Spec ECU #35835engine
  • P2 E&O - Correct FIA Group CN spec line notes #35900tyres & wheels
  • P2 E&O - Clarify B.1 modified engine range in AMAC spec lines #35225engine
  • P2 Replacement Engine Crankcase for 07/08 Suzuki GSX-R1000 Engines #35340engine
  • FV FV Wheel Bearing Clarification #35150tyres & wheels
  • P2 Correct Table 1 for Engine Date Range Specifications #35182engine
Virginia International Raceway Runoffs 20232023-09-232:15.639Andrew Whitston · fastest of 27 · top 5 within 1.4s+0.523s (+0.39%)2:16.611Andrew Abbott · fastest of 23 · top 5 within 1.6s-1.482s (-1.07%)115.6Brian Farnham-0.2 mph (-0.2%)1:48.590Greg Gyann · fastest of 12 · top 5 within 1.7s+1.024s (+0.95%)1:48.829Lucian Pancea · fastest of 11 · top 5 within 0.9s-27.005s (-19.88%)150.9Lucian Pancea-0.2 mph (-0.2%)-27.782squal -27.049s79.7%qual 80.1%2:11.435Nathan Nicholson · fastest of 18 · top 5 within 0.6s2:12.616Noah Harmon · fastest of 16 · top 5 within 0.1s127.8Noah Harmon-3.995squal -4.204s97.1%qual 96.9%
8 rule changes (P2: 8)3 weight · 2 engine · 1 cars added · 1 tyres & wheels · 1 wordingshowhide
  • P2 Clarify minimum side body height requirement #34143tyres & wheels
  • P2 Clarify closed cockpit single seat car allowance #34144wording
  • P2 Remove redundant effective date language and update engine table #34012engine
  • P2 E&O - Correct dimensional equivalents #34038weight
  • P2 Request to Classify Sebeco NP01 #33378cars added
  • P2 Radical spec line clarifications #33485weight
  • P2 E&O original class intent #33519weight
  • P2 Update Engine Table Spec Line B.1 #33608engine
Virginia International Raceway Runoffs 20222022-09-242:15.116Brian Farnham · fastest of 29 · top 5 within 1.1s-0.596s (-0.44%)2:18.093Andrew Whitston · fastest of 28 · top 5 within 1.2s-0.196s (-0.14%)115.8Jonathan Weisheit+1.1 mph (+0.9%)1:47.566Tim Day Jr · fastest of 12 · top 5 within 3.0s-1.545s (-1.42%)2:15.834Greg Gyann · fastest of 12 · top 5 within 10.1s+25.576s (+23.20%)151.1Robert Iversen+1.8 mph (+1.2%)-2.259squal -27.550s98.4%qual 79.6%
14 rule changes (FV: 4, P2: 10)5 weight · 3 tyres & wheels · 2 engine · 1 aero · 1 wording · 2 othershowhide
  • P2 E&O Clarification of Chassis Construction Requirements #32469tyres & wheels
  • P2 Clean up P2 wording #32525wording
  • P2 After Market to Aftermarket #32373other
  • FV Connecting Rod Update Request for 9.1.1.C Formula Vee (FV) 5.C.6 #32160weight
  • FV E&O clarification of connecting rod center-to-center length #32183weight
  • P2 Add spec line for Beasley B2 #32147weight
  • P2 E&O Table 1 spec line wing terminology #32148aero
  • P2 E&O class name #32196other
  • P2 E&O Engine section #31969engine
  • FV Update direct replacement connecting rod information #31843weight
  • P2 E&O letter #31539 – Control Area definition #31783tyres & wheels
  • FV Formula V Connecting Rod Replacement #31448weight
  • P2 BoP adjustment effective 1-1-22 #31538engine
  • P2 E&O clarification of "Control Area" definition #31539tyres & wheels
Indianapolis Motor Speedway Runoffs 20212021-09-251:57.479Andrew Whitston · fastest of 48 · top 5 within 0.8s+1.720s (+1.49%)1:57.234Alex Scaler · fastest of 47 · top 5 within 1.0s+1.311s (+1.13%)124.0Mark Edwards1:33.235Tim Day Jr · fastest of 16 · top 5 within 3.3s+1.409s (+1.53%)1:35.322Tim Day Jr · fastest of 10 · top 5 within 4.8s+2.841s (+3.07%)150.3Robert Iversen-21.912squal -24.244s81.3%qual 79.4%
8 rule changes (P2: 8)3 engine · 1 induction · 1 tyres & wheels · 3 othershowhide
  • P2 P2 CN Engine Rebuild Clarification #31000engine
  • P2 F5 P2 Conversion #30856other
  • P2 Clarify minimum body width requirement #30859tyres & wheels
  • P2 E&O tonneau cover provision in cockpit opening section #30459other
  • P2 Remove effective dates in Table 1 #30468other
  • P2 E&O Maximum Valves Per Cylinder #30560engine
  • P2 Add a new spec line for a 2-cycle, 3-cylinder engine up to 820cc #30272engine
  • P2 Balance of Performance adjustments effective 01-01-2021 #29822induction
Road America Runoffs 20202020-10-022:43.994Hunter Phelps-Barron · fastest of 28 · top 5 within 0.6s2:45.816Alex Scaler · fastest of 24 · top 5 within 1.5s117.1Hunter Phelps-Barron2:08.514Robert Iversen · fastest of 12 · top 5 within 3.0s2:09.793Robert Iversen · fastest of 12 · top 5 within 3.9s153.1Robert Iversen-36.023squal -35.480s78.3%qual 78.4%
12 rule changes (FV: 6, P2: 6)6 tyres & wheels · 2 engine · 2 induction · 1 aero · 1 cars addedshowhide
  • P2 E&O clarification of P2 rear wing requirements #29205aero
  • FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheels
  • FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheels
  • P2 Classify Elan NP01 in P2 Table 1 #28812cars added
  • P2 SCCA Enterprises ESR / P2 engine restrictor testing #28669induction
  • P2 Add ESR inlet restrictor #27869induction
  • FV Update rain tire designation #28444tyres & wheels
  • P2 Request for Fly by Wire Rule Wording Change #28247engine
  • FV FV Allow non-spec tire in Regional competition #26284tyres & wheels
  • FV Request to Allow Rear Tires on the Front of Formula Vee #26537tyres & wheels
  • P2 Request for addition of BMW Engine in P2 Engine Table #27821engine
  • FV Clarification on Wheel Bolt Pattern #27603tyres & wheels
Virginia International Raceway Runoffs 20192019-10-052:15.712Andrew Whitston · fastest of 26 · top 5 within 1.5s2:18.289Zachary Whitston · fastest of 19 · top 5 within 0.4s114.8Roger Siebenaler1:49.111Robert Iversen · fastest of 14 · top 5 within 0.8s1:50.258Greg Gyann · fastest of 13 · top 5 within 0.4s149.4Robert Iversen-28.031squal -26.601s79.7%qual 80.4%
15 rule changes (FV: 6, P2: 9)4 engine · 3 induction · 2 tyres & wheels · 2 weight · 1 suspension & brakes · 3 othershowhide
  • FV Allowed Modifications E&O #27398other
  • P2 Update Engine Table Line E notes #27414engine
  • FV E&O Wheels #27230tyres & wheels
  • P2 Update P2 Engine Table spec lines to reflect 3/1/2019 #27254engine
  • P2 E&O Transmissions #27006tyres & wheels
  • P2 Request to restrict all cars #26246weight
  • FV Exhaust termination rule E&O #26702other
  • FV E&O Dimensions #26674other
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262suspension & brakes
  • P2 Change Engine Table Lines B.1 & B.5 #25777engine
  • P2 Change Line A.1 restrictor size #26429induction
  • FV FV Intake Manifold Clarification #26008induction
  • P2 Request to Allow 1345cc Hayabusa Engines for Spec Line P2 Cars #25595engine
  • P2 Change CN inlet restrictor implementation date #25816induction
  • P2 Clarify Honda K20A-FD2 parts requirement #25950weight
Sonoma Raceway Runoffs 20182018-10-101:52.637Skip Streets · fastest of 29 · top 5 within 1.6s1:53.639Alex Scaler · fastest of 28 · top 5 within 0.4s106.3Skip Streets1:28.784Tim Day Jr · fastest of 17 · top 5 within 5.0s1:32.071Chuck Bona · fastest of 18 · top 5 within 0.9s144.4Tim Day Jr-21.568squal -23.853s81.0%qual 78.8%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:55.759Michael Varacins · fastest of 39 · top 5 within 1.0s1:55.923Michael Varacins · fastest of 32 · top 5 within 1.3s1:31.826Jeff Shafer · fastest of 26 · top 5 within 4.9s1:32.481Jeff Shafer · fastest of 24 · top 5 within 3.8s-23.442squal -23.933s79.8%qual 79.3%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:37.942Alex Scaler · fastest of 41 · top 5 within 0.3s1:38.066Flinn Lazier · fastest of 38 · top 5 within 0.7s1:20.188Jeff Shafer · fastest of 18 · top 5 within 4.0s1:20.904Jeff Shafer · fastest of 16 · top 5 within 2.2s-17.162squal -17.754s82.5%qual 81.9%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:21.167Roger Siebenaler · fastest of 31 · top 5 within 0.8s2:21.142Andrew Whitston · fastest of 30 · top 5 within 1.1s1:51.825Chris Farrell · fastest of 17 · top 5 within 3.6s1:52.355Jeff Shafer · fastest of 17 · top 5 within 2.8s-28.787squal -29.342s79.6%qual 79.2%

By track

TrackEvents Typical % of FV Best Latest 
Road America4100.0%100.0%Runoffs 2020100.0%Runoffs 2026
Virginia International Raceway3100.0%100.0%Runoffs 2019100.0%Runoffs 2023
Indianapolis Motor Speedway2100.0%100.0%Runoffs 2017100.0%Runoffs 2021
Daytona International Speedway1100.0%100.0%Runoffs 2015100.0%Runoffs 2015
Mid-Ohio Sports Car Course1100.0%100.0%Runoffs 2016100.0%Runoffs 2016
Sonoma Raceway1100.0%100.0%Runoffs 2018100.0%Runoffs 2018
About this data
Every event the class ran, at any track, oldest to newest on the chart and newest first in the table. Each point is the class's best lap as a share of FV's best on the same day: the weather and the day cancel out, so one figure compares across years where lap times cannot; a class that suits one track more than another still reads differently there. It still moves when the yardstick's own balance changes or its field thins, and an event the yardstick did not run has no point. A best from fewer than three cars is greyed. The rule changes that took effect between two events are folded between their rows.