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BoP Lab / Buttonwillow Raceway Park

SM at Buttonwillow Raceway Park

Track map: sectors and speed trap

Track map with timing sectors and speed trap
Shown for: Cal Club 2026 (practice, qualifying, race) · Cal Club 2025 (practice, qualifying, race)
Class · click a class to switch, + to compare alongside
Events

One run is left out as not that car's own laps (far quicker than the car managed in any other session and than anyone else in its class all week; usually a swapped transponder): William Rasmussen in Cal Club 2025 Fri PM (1:36.912; the car's best in any other session was 2:00.848 and the rest of the class's best all week 1:41.720).

PosCarDriverClass#Best lapBest theoretical lapBest qual lapBest race lapBest trap speedBest S1Best S2Best S3
1Mazda Miata (1993)John StottSM451:41.720 B-P1:41.5472:04.563 B-Q13:19.168 B-R1153.3 B-P28.011 B-P29.514 B-P44.022 B-P
2Mazda Miata (1999)Alan Leukhardt IIISM171:51.297 B-P1:50.8002:06.617 B-Q12:07.598 B-R1120.9 A-Q130.402 B-P32.034 B-P48.364 B-P
3Mazda Miata (1999)Sophia StoreySM65, 1871:53.207 B-P1:52.8252:02.978 B-Q12:02.546 B-R1102.6 B-R130.832 B-P32.705 B-P49.288 B-P
4Mazda Miata (1999)Curtis ZhiSM771:53.375 B-P1:53.3752:02.880 B-Q22:02.884 B-R1102.2 B-Q233.066 B-R135.129 B-Q154.444 B-R1
5Mazda Miata (1991)William Wallis >115%SM1962:00.831 B-Q2>2:00.653>2:00.831 B-Q22:01.805 B-R1>102.2 B-Q1>32.837 B-R1>34.577 B-Q2>53.239 B-Q2>
6Mazda MiataWilliam Rasmussen 2+ cars >115%SM232:00.848 B-Q2>2:00.848>2:00.848 B-Q2>2:01.937 B-R1>102.9 B-R2>32.618 B-Q2>34.761 B-Q2>53.469 B-Q2>
7Mazda MiataEvan Jacobs >115%SM352:01.305 B-Q2>2:00.899>2:01.305 B-Q2>2:01.800 B-R2>103.9 B-R2>32.898 B-R1>34.715 B-R1>53.286 B-Q2>
8Mazda Miata (2003)Ryan Busk >115%SM72:01.392 A-Q2>2:01.392>2:01.392 A-Q2>2:02.555 A-R2>124.6 A-R2>33.152 A-R2>35.121 A-R2>53.594 A-Q2>
9Mazda Miata (1999)Nathan Del Carmen >115%SM882:01.474 B-Q2>2:01.388>2:01.474 B-Q2>2:01.948 B-R2>101.3 B-R2>32.746 B-Q2>34.922 B-Q2>53.720 B-Q1>
10Mazda Miata (1999)Nick Leverone >115%SM942:01.650 B-R1>2:01.239>2:01.706 B-Q2>2:01.650 B-R1120.7 A-Q1>32.921 B-R2>34.741 B-Q2>53.577 B-Q2>
11Mazda Miata (1991)Clement Lee >115%SM872:01.753 B-Q1>2:01.287>2:01.753 B-Q1>2:01.777 B-R1>101.4 B-R1>32.979 B-R1>34.807 B-R1>53.501 B-Q1>
12Mazda Miatta (1999)William Rasmussen 2+ cars >115%SM232:01.816 A-Q2>2:01.816>2:01.816 A-Q2>2:02.486 A-R2>125.6 A-R2>33.179 A-R2>34.870 A-Q2>53.902 A-Q2>
13Mazda Miata (1999)Tyler Vance >115%SM12:01.993 A-Q2>2:01.993>2:01.993 A-Q2>2:03.785 A-R1>119.9 A-R1>33.194 A-Q1>35.246 A-Q1>53.843 A-Q2>
14Mazda Miata (2001)Wyatt Couch >115%SM662:02.169 A-Q2>2:02.169>2:02.169 A-Q2>2:03.291 A-R2>122.5 A-R2>33.243 A-Q2>35.205 A-Q2>53.822 A-Q2>
15Mazda Miata (1999)Max Logemann >115%SM32:02.199 B-Q2>sector data unreliable2:02.199 B-Q2>2:02.274 B-R1>127.6 B-P>26.21829.11843.340
16Mazda Miata (2003)Brett Revetta >115%SM482:02.373 B-Q1>2:02.207>2:02.373 B-Q1>2:02.639 B-R2>102.0 B-Q1>32.995 B-Q2>35.057 B-Q1>54.155 B-Q1>
17Mazda Miata (1993)Alex Pollard >115%SM472:02.418 B-P>2:02.418>2:03.389 B-Q2>2:03.247 B-R2>122.9 A-R1>33.102 B-R2>35.272 B-R1>54.482 B-Q2>
18Mazda Miata (1999)Todd Launchbaugh >115%SM732:02.731 B-Q2>2:02.486>2:02.731 B-Q2>2:02.838 B-R1>100.8 B-R1>33.200 B-R2>35.125 B-R2>54.161 B-R1>
19Mazda Miata (2003)Jeremy Rutter >115%SM372:03.024 A-Q2>2:02.702>2:03.024 A-Q2>2:04.170 A-R2>122.6 A-Q1>33.350 A-Q1>35.216 A-Q1>54.136 A-Q2>
20Mazda Miata (1999)David Mitchell >115%SM752:03.396 A-P>2:03.396>2:08.722 A-Q2>2:10.195 A-R2>124.6 A-Q2>34.572 A-Q1>36.800 A-Q1>53.851 A-P>
21Mazda Miata (2003)Jake Johnson >115%SM1512:03.918 A-Q2>2:03.624>2:03.918 A-Q2>2:04.562 A-R2>126.2 A-R1>33.473 A-Q2>35.575 A-Q2>54.576 A-Q2>
22Mazda Miata (1993)Sam Rezai >115%SM1772:03.923 A-Q1>2:03.910>2:03.923 A-Q1>2:05.864 A-R1>127.3 A-Q1>33.474 A-Q1>35.897 A-Q1>54.539 A-Q1>
23Mazda Miata (1999)Cooper Hicks >115%SM862:05.080 A-R1>2:04.776>2:05.276 A-Q2>2:05.080 A-R1>121.0 A-R1>33.780 A-R1>35.806 A-Q1>55.190 A-Q2>
24Mazda Miata (1991)Hendrik Webster >115%SM972:05.607 A-Q2>2:04.697>2:05.607 A-Q2>2:05.928 A-R2>125.2 A-Q1>33.857 A-Q2>35.824 A-Q2>55.016 A-Q1>
25Mazda Miata (2000)Nicholas Stewart >115%SM872:06.288 A-Q2>2:06.028>2:06.288 A-Q2>2:07.124 A-R2>123.1 A-P>34.202 A-Q2>36.128 A-Q2>55.698 A-Q1>
26Mazda Miata (1990)Sayo Haraishi >115%SM342:07.037 B-Q1>2:06.501>2:07.037 B-Q1>2:08.275 B-R1>100.2 B-Q1>34.243 B-Q1>36.262 B-Q1>55.996 B-Q1>
27Mazda Miata 0Preston Lewis >115%SM118, 102:07.663 A-R2>2:07.201>2:08.505 A-Q2>2:07.663 A-R2>125.2 A-R2>34.455 A-R2>36.398 A-R2>56.348 A-R2>
28Mazda Miata (2001)William Sturgeon >115%SM1182:08.519 A-Q1>2:08.178>2:08.519 A-Q1>2:11.184 A-R2>118.9 A-Q1>34.873 A-Q1>36.458 A-Q1>56.847 A-Q1>
29Mazda MiataBill Nelson >115%SM1992:10.339 B-Q1>2:09.582>2:10.339 B-Q1>2:11.321 B-R1>94.8 B-R2>35.256 B-R1>37.267 B-Q1>57.059 B-Q1>
30Mazda Miata (1990)John Rice >115%SM202:11.974 A-Q2>2:11.625>2:11.974 A-Q2>2:13.511 A-R1>115.3 A-R2>35.615 A-Q2>37.635 A-Q2>58.375 A-Q2>
31Mazda Miata (1990)Lauren Lewis >115%SM452:12.076 A-Q1>2:11.688>2:12.076 A-Q1>2:12.821 A-R1>112.2 A-R2>35.483 A-R1>37.835 A-Q1>58.370 A-Q1>

One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in; the fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed, marked ">" (with ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it. Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.

Sectors

Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.

By car

CarClassDriversBest lapBest qualBest raceBest trapBest S1Best S2Best S3
Mazda MiataSM301:41.720John Stott2:00.831William Wallis2:01.650Nick Leverone153.3John Stott26.218Max Logemann29.118Max Logemann43.340Max Logemann
Mazda MiattaSM12:01.816William Rasmussen2:01.816William Rasmussen2:02.486William Rasmussen125.6William Rasmussen33.179William Rasmussen34.870William Rasmussen53.902William Rasmussen

The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.

Rule changes between these events

Cal Club 2025 → Cal Club 2026 2025-02-22 to 2026-02-21

SM Clarify Tire Marking Regs

#38005 from Greg Amy · Rule change · TB 25-05 (2025-05 Fastrack)

In GCR Section 9.1.7.C.1.6.c., change as follows:
"1. A mandatory impound for all SMX competitors will occur after the first dry qualifying or race session. All tires will be marked
for the remainder of the race weekend. It is the competitor’s responsibility to report to impound and ensure their tires are
marked prior to leaving impound. SM cars are limited to one set of Hoosier SM 7.5 P205/50/ZR17 per Hoosier Super Tour event
weekend for all dry qualifying and race sessions. This limitation does not include testing or practice sessions. Approved rain tires
will not be required to be marked.
2. A mandatory impound for all SM competitors is required after the first dry qualifying or race (if rain in qualifying) session. It is
the competitor’sresponsibility to ensure their tires are marked prior to going on track for the next session. A mandatory impound

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for all SM competitors will occur after the first dry qualifying or race session. All tires will be marked for the remainder of the
race weekend. It is the competitor’s responsibility to report to impound and ensure their tires are marked prior to leaving
impound.
3. If a competitor damages a tire or wheel, and there is a safety concern, the competitor must find the Hoosier Super Tour Series
Tech Chief or SM CCC, if assigned, for inspection. At the direction of the Hoosier Super Tour Series Tech Chief or SM CCC, the
competitor will be allowed to substitute alternate used tire(s) to replace the damaged tire(s). New tires are not an option as a
replacement tire for a damaged tire If a competitor damages a tire or wheel and there is a safety concern, the competitor must
find the Hooseir Super Tour Series Tech Chief or SMX CCC, if assigned, for inspection. At the discretion of the Hoosier Super
Tour Series Tech Chief of SMX CCC the competitor may be allowed to substitute alternate used tires(s) to replace the damaged
tire(s). New tires are not an option as a replacement tire for a damaged tire."

SM SMX Data Submission - Penalties

#38248 from Kathy Barnes · Rule change · TB 25-06 (2025-06 Fastrack)

In GCR, Section 9.1.7.1.23 add new level 5 infraction as follows:
Level: "5"
Infraction: "Failure to successfully submit (received by data@specmx-5.com) data acquisition file to data@specmx-5 per the
timeframes outlined in GCR section 9.1.7.1.20."
Penalty: "May suspend the driver (i.e. suspend) of the Spec MX-5 that failed to submit data on time or at all from competing in
SCCA events for the 3 months following the suspension.
A level 5 infraction may carry a $250.00 fine."

SM Committee) SMX Penaly Clarification updated language

#38337 from Spec Mazda (SM/SMX · Rule change · TB 25-06 (2025-06 Fastrack)

In GCR, Section 9.1.7.1.23. change as follows:
Rename as follows: "Penalties Clarification – Non-Compliant Parts SMX Penalty Guidelines"
Change the Penalty language for level 1 to the following: "A level 1 infraction carries may carry a $1,000 fine."
Change the penalty language for level 2 to the following: "A level 2 infraction carries may carry a $500 fine."
Change the penalty language for level 3 to the following: "A level 3 infraction carries may carry a $1,000 fine."
Change the penalty language for level 4 to the following: "A level 4 infraction carries may carry a $500 fine."

What the rules allowed changed as listed; this does not say what any particular car ran.