Steffen Clark 4 letters to Fastrack

Against the front of the class, by track and class

Track	Class	Sessions	Typical gap to class best	Closest
Virginia International Raceway (3.27 mi)	FP	17	+10.481s (8.14%)	+0.256s (0.19%)
Sebring International Raceway (3.74 mi)	FP	18	+9.732s (6.43%)	+0.000s (0.00%)
Unknown track (3.27 mi)	FP	4	+8.472s (6.57%)	+6.464s (5.00%)
Road America	FP	1	+11.754s (7.54%)	+11.754s (7.54%)
Road America (4.05 mi)	FP	4	+11.754s (7.54%)	+11.649s (7.52%)
Circuit of the Americas (3.41 mi)	EP	4	+1.160s (0.72%)	+1.136s (0.71%)
Indianapolis Motor Speedway (2.59 mi)	FP	7	+9.072s (8.09%)	+8.755s (7.30%)

Gap is the driver's best lap in a session against the fastest lap in their class in that same session (zero is fastest in class), shown as time lost and as a share of the lap, so conditions cancel out and tracks can be compared. Typical is the median session.

Virginia International Raceway (3.27 mi)

Event	Session	Class	#	Car	Pos	Best lap	Class best	To class best	Trap	Class trap	To class trap
Spring Sprints 2026	Grp 1 EP FP HP B-Spec Race 2	FP	13	Mazda Miata	3/5	2:37.723	2:26.640Mason Workman	+11.083s (7.56%)	119.53/5	123.5Mason Workman	-4.0 mph (-3.2%)
Spring Sprints 2026	Grp 1 EP FP HP B-Spec Qual 2	FP	13	Mazda Miata	2/2	2:13.940	2:13.234Robert Garrison	+0.706s (0.53%)	121.12/2	122.2Robert Garrison	-1.1 mph (-0.9%)
Spring Sprints 2026	Grp 1 EP FP HP B-Spec Qual 1	FP	13	Mazda Miata	4/7	2:13.216	2:10.839Mason Workman	+2.377s (1.82%)	123.35/7	128.2Mark Carpenter	-4.8 mph (-3.8%)
Spring Sprints 2026	Grp 1 EP FP HP B-Spec Race 1	FP	13	Mazda Miata	2/7	2:13.591	2:13.335Mason Workman	+0.256s (0.19%)	127.02/7	128.2Mark Carpenter	-1.2 mph (-0.9%)
Runoffs 2023	FP Race	FP	13	Mazda Miata	9/20	2:17.040	2:07.787Cliff Ira	+9.253s (7.24%)	114.920/20	133.0Cliff Ira	-18.1 mph (-13.6%)
Runoffs 2022	FP Race	FP	13	Mazda Miata	7/15	2:31.087	2:17.641Mason Workman	+13.446s (9.77%)	115.214/15	127.0David Strittmatter	-11.8 mph (-9.3%)
Runoffs 2022	GTL/FP Qual 3	FP	13	Mazda Miata	13/17	2:18.415	2:08.542Bill Hingston	+9.873s (7.68%)	117.314/17	129.4Cliff Ira	-12.1 mph (-9.3%)
Runoffs 2022	FP Qual 2	FP	13	Mazda Miata	14/18	2:14.384	2:06.217Eric Prill	+8.167s (6.47%)	121.716/18	131.9David Strittmatter	-10.2 mph (-7.7%)
Runoffs 2022	GTL/FP Qual 1	FP	13	Mazda Miata	14/18	2:15.014	2:06.890Eric Prill	+8.124s (6.40%)	123.716/18	132.5Cliff Ira	-8.8 mph (-6.7%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 5 EP,FP,GTL,HP Race 2	FP	13	Mazda Miata	7/10	2:18.924	2:07.099Kevin Ruck	+11.825s (9.30%)	112.99/10	132.6Ken Kannard	-19.8 mph (-14.9%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 5 EP,FP,GTL,HP Race 1	FP	13	Mazda Miata	7/11	2:19.211	2:08.730Kevin Ruck	+10.481s (8.14%)	113.211/11	134.4Ken Kannard	-21.2 mph (-15.8%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 5 EP,FP,GTL,HP Qual 2	FP	13	Mazda Miata	8/12	2:20.067	2:08.780Mason Workman	+11.287s (8.76%)	110.712/12	129.5Ken Kannard	-18.8 mph (-14.5%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 5 EP,FP,GTL,HP Qual 1	FP	13	Mazda Miata	8/13	2:20.643	2:09.063Kevin Ruck	+11.580s (8.97%)	113.311/13	137.6Les Chaney	-24.2 mph (-17.6%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 1 B-Spec, EP, FP, GTL, HP Race 2	FP	13	Mazda Miata	4/11	2:23.704	2:08.998Mason Workman	+14.706s (11.40%)	113.87/11	130.5Michael Kamalian	-16.7 mph (-12.8%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 1 B-Spec, EP, FP, GTL, HP Race 1	FP	13	Mazda Miata	5/11	2:21.755	2:09.859Mason Workman	+11.896s (9.16%)	112.19/11	130.7Michael Kamalian	-18.6 mph (-14.3%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 1 B-Spec, EP, FP, GTL, HP Qual 2	FP	13	Mazda Miata	3/7	2:23.966	2:11.021Mason Workman	+12.945s (9.88%)	111.84/7	124.7Mason Workman	-13.0 mph (-10.4%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 1 B-Spec, EP, FP, GTL, HP Qual 1	FP	13	Mazda Miata	5/11	2:21.073	2:09.928Charlie Campbell	+11.145s (8.58%)	111.98/11	126.7Charlie Campbell	-14.8 mph (-11.6%)

Sebring International Raceway (3.74 mi)

Event	Session	Class	#	Car	Pos	Best lap	Class best	To class best	Trap	Class trap	To class trap
Central Florida 2024	Grp 8 EP,FP,HP,GTL,B-Spec Race 2	FP	13	Mazda Miata	3/5	3:05.714	2:54.633Cliff Ira	+11.081s (6.35%)	98.64/5	102.9Mark Weber	-4.3 mph (-4.2%)
Central Florida 2024	Grp 8 EP,FP,HP,GTL,B-Spec Race 1	FP	13	Mazda Miata	2/6	2:38.843	2:30.288Cliff Ira	+8.555s (5.69%)	106.04/6	114.8Cliff Ira	-8.8 mph (-7.6%)
Central Florida 2024	Grp 8 EP,FP,HP,GTL,B-Spec	FP	13	Mazda Miata	2/6	2:57.521	2:51.110Cliff Ira	+6.411s (3.75%)	100.54/6	106.5Cliff Ira	-6.0 mph (-5.6%)
Central Florida 2024	Grp 8 EP,FP,HP,GTL,B-Spec Prac	FP	13	Mazda Miata	3/7	2:41.017	2:31.285Cliff Ira	+9.732s (6.43%)	102.83/7	112.5Cliff Ira	-9.7 mph (-8.7%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 4 EP,FP,HP,GTL,B-Spec Race 2	FP	13	Mazda Miata (1990)	4/5	2:35.868	2:26.326Ken Kannard	+9.542s (6.52%)	110.45/5	118.3Ken Kannard	-7.9 mph (-6.7%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 4 EP,FP,HP,GTL,B-Spec Race 1	FP	13	Mazda Miata (1990)	3/6	2:36.213	2:26.500Ken Kannard	+9.713s (6.63%)	109.15/6	114.8Ken Kannard	-5.7 mph (-5.0%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 4 EP,FP,HP,GTL,B-Spec Qual 2	FP	13	Mazda Miata (1990)	6/6	2:39.768	2:28.910Ken Kannard	+10.858s (7.29%)	103.16/6	115.0Ken Kannard	-11.9 mph (-10.3%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 4 EP,FP,HP,GTL,B-Spec Qual 1	FP	13	Mazda Miata (1990)	1/1	3:07.560	3:07.560you	+0.000s (0.00%)	97.11/1	97.1you	+0.0 mph (0.0%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 3 EP,FP,HP,GTL,B-Spec,T4 Race 2	FP	13	Mazda Miata	2/4	3:02.939	2:56.706Ken Kannard	+6.233s (3.53%)	100.12/4	101.2Donald Ahrens	-1.1 mph (-1.1%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 3 EP,FP,HP,GTL,B-Spec,T4 Race 1	FP	13	Mazda Miata	5/5	2:39.526	2:32.544Ken Kannard	+6.982s (4.58%)	106.85/5	113.7Ken Kannard	-6.9 mph (-6.1%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 3 EP,FP,HP,GTL,B-Spec,T4 Qual 2	FP	13	Mazda Miata	5/5	2:38.986	2:30.473Ken Kannard	+8.513s (5.66%)	105.65/5	114.8Ken Kannard	-9.2 mph (-8.0%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 3 EP,FP,HP,GTL,B-Spec ,T4 Qual 1	FP	13	Mazda Miata	4/4	2:40.366	2:31.921Ken Kannard	+8.445s (5.56%)	103.24/4	113.4Ken Kannard	-10.2 mph (-9.0%)
Central Florida Region Hoosier SCCA Super Tour @ Sebring International Raceway	Grp 3 EP,FP,HP,GTL,B-Spec Practice	FP	13	Mazda Miata	5/6	2:44.017	2:31.941Ken Kannard	+12.076s (7.95%)	102.15/6	112.8Ken Kannard	-10.7 mph (-9.5%)
SIR 2021	Grp 2 EP,FP,HP,GTL,B-Spec Race 2	FP	13	Mazda Miata (1991)	5/8	2:40.578	2:27.392Ken Kannard	+13.186s (8.95%)	106.86/8	115.3Ken Kannard	-8.5 mph (-7.4%)
SIR 2021	Grp 2 EP,FP,HP,GTL,B-Spec Race 1	FP	13	Mazda Miata (1991)	8/9	2:43.821	2:28.143Michael Kamalian	+15.678s (10.58%)	104.77/9	115.8Michael Kamalian	-11.1 mph (-9.6%)
SIR 2021	Grp 2 EP,FP,HP,GTL,B-Spec Qual 2	FP	13	Mazda Miata (1991)	7/9	2:42.948	2:27.862Mason Workman	+15.086s (10.20%)	104.57/9	113.9Michael Kamalian	-9.3 mph (-8.2%)
SIR 2021	Grp 2 EP,FP,HP,GTL,B-Spec Qual 1	FP	13	Mazda Miata (1991)	8/9	2:45.300	2:31.319Mason Workman	+13.981s (9.24%)	102.26/7	111.6Ken Kannard	-9.4 mph (-8.4%)
SIR 2021	Grp 2 EP,FP,HP,GTL,B-Spec Practice	FP	13	Mazda Miata (1991)	7/7	2:46.739	2:30.459Ken Kannard	+16.280s (10.82%)

Unknown track (3.27 mi)

Event	Session	Class	#	Car	Pos	Best lap	Class best	To class best	Trap	Class trap	To class trap
Runoffs 2023	FP/GTL Qual 3	FP	13	Mazda Miata	12/20	2:15.730	2:09.266Kevin Ruck	+6.464s (5.00%)	117.017/20	133.7Cliff Ira	-16.6 mph (-12.4%)
Runoffs 2023	FP Qual 2	FP	13	Mazda Miata	8/19	2:17.428	2:08.956Ken Kannard	+8.472s (6.57%)	117.911/19	128.2Kevin Ruck	-10.3 mph (-8.1%)
Runoffs 2023	FP/GTL Qual 1	FP	13	Mazda Miata	11/20	2:17.069	2:08.248Cliff Ira	+8.821s (6.88%)	116.116/20	131.1Cliff Ira	-15.0 mph (-11.5%)
North Carolina Region Dual Conference Hoosier SCCA Super Tour @ Virginia International Raceway	Grp 5 EP,FP,GTL,HP Practice	FP	13	Mazda Miata	7/12	2:23.441	2:11.503Mason Workman	+11.938s (9.08%)	112.29/12	132.0Ken Kannard	-19.8 mph (-15.0%)

Road America

Event	Session	Class	#	Car	Pos	Best lap	Class best	To class best	Trap	Class trap	To class trap
June Sprints 2023	Grp 4 EP,FP,HP,GTL,B-Spec Race 1	FP	113	Mazda Miata	11/16	2:47.636	2:35.882Doug Weaver	+11.754s (7.54%)

Road America (4.05 mi)

Event	Session	Class	#	Car	Pos	Best lap	Class best	To class best	Trap	Class trap	To class trap
June Sprints 2023	Grp 4 EP,FP,HP,GTL,B-Spec Race 2	FP	113	Mazda Miata	12/16	2:46.559	2:34.910Mason Workman	+11.649s (7.52%)	113.915/16	129.2David Strittmatter	-15.3 mph (-11.8%)
June Sprints 2023	Grp 4 EP,FP,HP,GTL,B-Spec Race 1	FP	113	Mazda Miata	11/16	2:47.636	2:35.882Doug Weaver	+11.754s (7.54%)	116.514/16	131.0David Strittmatter	-14.6 mph (-11.1%)
June Sprints 2023	Grp 4 EP,FP,HP,GTL,B-Spec Qual 2	FP	113	Mazda Miata	13/16	2:47.178	2:35.169Mason Workman	+12.009s (7.74%)	115.614/16	130.2David Strittmatter	-14.5 mph (-11.2%)
June Sprints 2023	Grp 4 EP,FP,HP,GTL,B-Spec Qual 1	FP	113	Mazda Miata	10/17	2:45.461	2:33.666Mason Workman	+11.795s (7.68%)	114.415/17	128.6Ken Kannard	-14.2 mph (-11.0%)

Circuit of the Americas (3.41 mi)

Event	Session	Class	#	Car	Pos	Best lap	Class best	To class best	Trap	Class trap	To class trap
Lone Star Grand Prix 2022	Grp 2 EP,FP,HP,GTL,B-Spec Race 2	EP	13	Mazda Miata	2/2	2:42.778	2:40.035Matt Reynolds	+2.743s (1.71%)	113.32/2	115.1Matt Reynolds	-1.8 mph (-1.5%)
Lone Star Grand Prix 2022	Grp 2EP,FP,HP,GTL,B-Spec Qual 2	EP	13	Mazda Miata	2/2	2:41.302	2:40.142Matt Reynolds	+1.160s (0.72%)	112.02/2	114.3Matt Reynolds	-2.3 mph (-2.0%)
Lone Star Grand Prix 2022	Grp 2 EP,FP,HP,GTL,B-Spec Race 1	EP	13	Mazda Miata	2/2	2:41.049	2:39.259Matt Reynolds	+1.790s (1.12%)	113.02/2	115.7Matt Reynolds	-2.7 mph (-2.4%)
Lone Star Grand Prix 2022	Grp 2 EP,FP,HP,GTL,B-Spec Qual 1	EP	13	Mazda Miata	2/2	2:41.872	2:40.736Matt Reynolds	+1.136s (0.71%)	0.42/2	0.4Matt Reynolds	-0.0 mph (-0.5%)

Indianapolis Motor Speedway (2.59 mi)

Event	Session	Class	#	Car	Pos	Best lap	Class best	To class best	Trap	Class trap	To class trap
Runoffs 2021	FP Race	FP	13	Mazda Miata	18/33	2:08.688	1:59.933Cliff Ira	+8.755s (7.30%)	115.528/33	131.5Cliff Ira	-16.0 mph (-12.2%)
Runoffs 2021	FP Qual 3	FP	13	Mazda Miata	27/37	2:00.096	1:51.082Craig Chima	+9.014s (8.11%)	113.532/37	131.8Cliff Ira	-18.3 mph (-13.9%)
Runoffs 2021	FP/GTL Qual 2	FP	13	Mazda Miata	25/38	2:01.219	1:52.147Craig Chima	+9.072s (8.09%)	112.435/38	130.6Cliff Ira	-18.2 mph (-13.9%)
Runoffs 2021	FP Qual 1	FP	13	Mazda Miata	27/37	2:02.285	1:52.374Craig Chima	+9.911s (8.82%)	112.034/37	131.8Cliff Ira	-19.8 mph (-15.0%)
Runoffs 2021	Grp 3 Run 3 B-Spec,FP,GTL,HP,STL,T4 Sun	FP	13	Mazda Miata	8/8	2:02.697	1:54.208Mason Workman	+8.489s (7.43%)	113.78/8	126.7Perry Simonds	-13.0 mph (-10.2%)
Runoffs 2021	Grp 3 Run 2 B-Spec,FP,GTL,HP,STL,T4 Sun	FP	13	Mazda Miata	7/7	2:04.929	1:54.297Perry Simonds	+10.632s (9.30%)	113.57/7	128.1Perry Simonds	-14.6 mph (-11.4%)
Runoffs 2021	Grp 3 Run 1 B-Spec,FP,GTL,HP,STL,T4	FP	13	Mazda Miata	7/7	2:03.818	1:54.831Eric Prill	+8.987s (7.83%)	114.67/7	128.4Eric Prill	-13.7 mph (-10.7%)

Letters to Fastrack

2025-10-01 ITA Change 90-93 Miata Diff Housing Upgrade Wording in Notes

#38965 from Steffen Clark · Rule change · TB 25-10 (2025-10 Fastrack)

In ITA Spec Lines, Mazda MX-5 / Miata (90-93), change Notes as follows:
"Spec Miata floor pan modifications allowed. Reinforcement of the differential housing ears is allowed for the purpose of
repairing or reducing breakage at the factory stress riser “notch.” The 90-93 Miatas may convert to the 94-05 differential
assembly. This conversion includes the driveshaft and half-shafts. NA 90-97 cars may use the OEM Mazda 99-05 (NB) model year
rear uprights. NA cars upgrading to the OEM Mazda NB rear uprights must use the NB rear uprights on both sides of the car,
Miss-matching of rear uprights is not allowed. Any final drive permitted so long as it fts in an unmodifed housing"

2024-06-01 ITA 90-93 Miatas to use 94-97 Differential Allowance In

#35989 from Steffen Clark · Rule change · TB 24-06 (2024-06 Fastrack)

ITA Spec Lines, Mazda MX-5 / Miata (90-93), add to notes the follows:
"The 90-93 Miatas may convert to the 94-05 differential assembly. This conversion includes the driveshaft and half-shafts. The
original 90-93 model rear suspension uprights must be retained. Any final drive permitted so long as it fits in an unmodified
housing."
Legends Car None.

ITA/ITB/ITC/ITR/ITS/IT7 Do Not Change to 200 Treadwear

#32089 from Steffen Clark · No action required · Minutes (2022-03 Fastrack)

Thank you for your letter. Please see letter #31782 in current Fastrack.

ITA Request weight change for ITA 1.6 Miata

#30265 from Steffen Clark · Not recommended · Minutes (2021-08 Fastrack)

Thank you for your letter. We believe that the 1.6L NA Miata's minimum weight specification is appropriate as currently
classified.