How much you gain or lose against the best lap of the fastest driver in your class, live through the whole lap. A PRO plan overlay of Raptor Racing Overlay.
The Delta to fastest compares your lap, point by point, with the best lap of the fastest driver in your class. The big number in the middle is the difference: with a minus sign you're faster than them at that point of the track, with a plus sign you're slower. On the left is that driver, with their flag, car make and best lap; on the right is you. You can also compare against the car ahead, the car behind, a driver you pick or yourself, with their best, last or optimal lap.
It only reads data from the game: it never changes anything in iRacing or in your car.
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Example with two made-up drivers: at this point of the lap you're 0.234 s faster than Lucas Moretti's best lap.
1Flag and car: the country of the driver you're compared with and their car make (yours if you compare against yourself).
2Against whom: the fastest in your class, the car ahead, the car behind or the driver you picked. If you compare against yourself, it says My best lap, My last lap, My optimal lap, All-time best or All-time optimal here.
3Their time: the time of the lap you're compared with. Purple if it's the fastest lap in the class; otherwise white. If it's their last or optimal lap, a small LAST or OPTIMAL label sits on top.
4The delta: your time so far this lap minus theirs at that same point of that lap. White near zero, turning green if you're faster or red if you're slower.
5Your best lap: yours in this session.
6You: your name and, further right, your car make and flag. If you're the fastest, both sides show your name and you're compared with your own best lap.
7The sector strip: under the delta, one cell per sector: green if you beat him in that sector, red if you lost time, and the current sector highlighted.
The three delta screens
The capsule is always the same, with the fastest driver on the left and you on the right: what changes is the number in the middle and its color, which fills in gradually with the gap. These are the three situations, at different points of the same lap against the same driver.
Slower, in redWith a plus sign, you're slower than their best lap at this point of the track: the number is the time you've lost to them since the line. The number and the edge of the capsule turn red gradually: a tenth is already visible, and at half a second it's full red.
Level, in whiteNear zero you're level with them and the number stays white. The color changes smoothly: when you go from losing to gaining it doesn't jump straight from red to green, it passes through white. On the left, their best lap is purple because it's the fastest in the class.
Faster, in greenWith a minus sign you're gaining on them: the number, which is the time you're ahead, and the edge of the capsule turn green, on the same scale as the red. If you finish the lap in green and iRacing counts it as your best lap, you become the fastest in the class and from then on you compare against your own best lap.
What it compares against
In the menu, WHAT SHOWS tab, you choose two things. The same is on right-click, under Compare with.
AGAINST WHOM
The fastest
Default. The driver with the best lap in your class in this session.
The car ahead
The driver in your class right ahead of you.
The car behind
The driver in your class right behind you.
A driver I pick
The list of drivers in your class in the session appears and you pick one with a click. If they're not in the session, you're compared with the fastest.
Me
Your laps in this session.
Me, all-time
Your record with that car on that track, the same one iRacing keeps.
WHICH LAP
Best
Default. Their fastest lap.
Last
Their last complete lap.
Optimal
The sum of their best sectors.
With Me, all-time it's Best or Optimal.
Against another driver, a small LAST or OPTIMAL label on top of their time tells you which lap it is.
The car aheadOn the left, the driver right ahead of you and their best lap. Here you're 0.976 s down.
The car behindOn the left, the driver right behind you. In green: you're 1.763 s faster than their best lap.
All-time bestYour iRacing record with that car on that track, with the same delta iRacing shows.
The all-time ones
They're your iRacing records: the delta is the same as iRacing's. If you have no record yet, the left side says No record yet.
Reset my records for this track and car (right-click, Compare with) doesn't delete anything in iRacing: it starts counting again from your next record.
DELETE ALL MY RECORDS, in the settings, does the same on every track and car. Restoring the factory settings doesn't delete them.
The dash
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There's no comparison at that moment: for example in the pits, on the out lap, or when there's no lap to compare with yet.
The colors
The number always shows the exact value, in thousandths (with a gap of 10 seconds or more it switches to hundredths). The color, on the other hand, changes smoothly so that a jump from green to red doesn't flash at you mid-corner.
White
The delta is near zero: you're level with the reference.
Green
You're faster. The color fills in gradually: a tenth is already visible, and at half a second it's full green.
Red
You're slower, on the same scale.
Purple
The time of the fastest lap in your class.
Gray
The dash, when there's no comparison.
The sectors
They're on by default; turn them off with Show the sectors. Under the delta there's one cell for each sector of the track (S1, S2, S3...), the same sectors iRacing uses for its split times.
When you finish a sector, its cell turns green if it was faster than the same sector of the reference lap, or red if it was slower, with the difference in hundredths. A finished sector doesn't change anymore. The sector you're driving looks a bit lighter than the ones still to come. When you cross the line, the full strip stays for 3 seconds so you can see the last sector.
They're always compared against the same reference as the delta.
On a lap with a pit stop or a tow, the remaining sectors stay as a dash.
If iRacing doesn't report the track's sectors, the strip doesn't show.
Where it shows
The first time, it appears centered at the top, just under iRacing's virtual mirror. It only shows while you drive: in the garage and in replays it hides, unless you tick Also show it in the garage or Also show it in replays and when spectating. When watching a replay or spectating a race, "you" is the car the camera follows.
When you place it without a session running, it shows The fastest (or the option you chose) and Your lap as a sample.
It can also be seen on your phone or tablet, with the WIFI CONNECTION button in the menu, and as a STREAMING page for OBS: the same capsule, with the same number and the same color.
Controls and settings
On the overlay: with Allow moving the overlay on, you drag it with the mouse wherever you want. When you arrange the overlays from the menu, you can also resize it by dragging a corner.
Right-click on the overlay: Names (First and last name, Initial and last name or First name and last initial), Compare with (The fastest, The car ahead, The car behind, the drivers in your class, Me and Me, all-time; below, Which lap: Best, Last or Optimal; and Reset my records for this track and car), Show the best laps, Show the sectors, Overlay size (Bigger, Smaller or 75% to 200%), Also show it in the garage, Also show it in replays and when spectating, Allow moving the overlay, Background opacity (a small window with two sliders: background and data) and Close the delta to fastest.
In the Raptor Racing Overlay menu, the Delta to fastest settings have two tabs: WHAT SHOWS (AGAINST WHOM, WHICH LAP, DELETE ALL MY RECORDS, how names are written, the best laps and the sectors) and LOOKS (size, background opacity, data opacity, moving by dragging, where it shows and seeing it on your phone). The background is the two strips behind the names; the data is everything else.
Tips
Watch the color more than the digits: the green or red filling in tells you at a glance whether you're closing in or dropping back.
Watch the sectors to see where on the track you gain or lose time.
With Me and Optimal you see how much is left to put your best sectors together in a single lap.
Use A driver I pick to measure yourself against a rival with your pace or a teammate, instead of the fastest.
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