PAXIFYEarly access

Ivy Chang

2017 Ford Shelby GT350 · XFS · All clubs · 2026
Also: 2020 Ford Mustang (XFS, 1 event)

Compare with…
Gap to PAX winner+8.84%Median across 5 events
Run 1 pace+11.31%+2.75% off own best
Cones per event2.02 DNF/DSQ runs
PAX wins00 top-10 finishes

Gap to PAX winner, by event

Higher on the chart is faster

0%5%10%15%TXR E1TXR E3TXR E4TXR E6TXR E7Each event · TXR E1: +10.95%Each event · TXR E3: +5.93%Each event · TXR E4: +2.87%Each event · TXR E6: +8.84%Each event · TXR E7: +10.80%RollingEach event
Each event4-event rolling median

Pace by run number

Median best-so-far gap to the PAX winner after each run

0%5%10%15%Run 1Run 2Run 3Run 4Run 5Ivy · Run 1: +11.31%Ivy · Run 2: +8.84%Ivy · Run 3: +8.84%Ivy · Run 4: +8.84%Ivy · Run 5: +8.37%Ivy
Median across 5 events

Cones & DNFs

24 runs across 5 events · a cone is +2 s
Cones per event2.010 total
Clean events1 / 5No cones and no DNFs
Runs coned21%71% of runs clean
DNF runs28.3% of runs
Costly cones2Coned runs faster than the one that counted

By run number

0%20%40%60%Run 1Run 2Run 3Run 4Run 5Coned · Run 1: 40%DNF · Run 1: 0%Coned · Run 2: 20%DNF · Run 2: 20%Coned · Run 3: 20%DNF · Run 3: 0%Coned · Run 4: 0%DNF · Run 4: 20%Coned · Run 5: 25%DNF · Run 5: 0%
% of runs coned% of runs DNF

By event

0246TXR E1TXR E3TXR E4TXR E6TXR E7cleanCones · TXR E1: 0DNFs · TXR E1: 0Cones · TXR E3: 5DNFs · TXR E3: 1Cones · TXR E4: 1DNFs · TXR E4: 0Cones · TXR E6: 1DNFs · TXR E6: 0Cones · TXR E7: 3DNFs · TXR E7: 1
ConesDNF runs

Costly cones

Coned runs that were faster than the time that counted, before the penalty.

EventRunRawConesCounted bestTime lostPAX pos clean
TXR E7 Aug 2, 2026559.435+260.0670.632 s47th (was 52nd)
TXR E6 Jul 12, 2026179.497+179.6870.190 sSame (33rd)

Events

Newest first
EventClassPAX posBest rawPAXGapCones
Event 7
Texas Region SCCA · Aug 2, 2026
XFS52 / 12560.06749.074+10.80%3 · 1 DNF
Event 6
Texas Region SCCA · Jul 12, 2026
XFS33 / 14379.68765.104+8.84%1
Event 4
Texas Region SCCA · May 17, 2026
XFS14 / 14338.76631.671+2.87%1
Event 3
Texas Region SCCA · Apr 19, 2026
XFS24 / 12642.41634.653+5.93%5 · 1 DNF
Event 1
Texas Region SCCA · Mar 1, 2026
XFS55 / 14664.20052.451+10.95%0

Observations

Computed
  • Run 1 is typically +11.31% off the PAX winner; Ivy finishes around +8.84%, so about 2.5 points come over the remaining runs.
  • Ivy is typically within 1 point of final pace by run 2.
  • Median gap went from +5.93% in the first half of these events to +9.82% in the second half.
  • 2.0 cones per event. Each cone is 2 s, about 3–4% on a 55 s course.
  • Run 1 is where mistakes happen most: 40% of run 1s were coned or DNF.
  • 2 coned runs were faster than the time that counted. The biggest, at TXR E7, would have been 0.632 s quicker and 5 PAX places higher clean.