← Rider search

William Grothaus

Fenton, MO · racing 2006–2025 · 93 archived events · best finish P1

Is this you? Share your race history:FacebookX

2025

PosClassEvent / Track#BikePts
350+AAMA D18 — RACER X VET FEST / MIDAMERICA SERIES 2025-05-03 · Archview MX Park11
345+AAMA D18 — RACER X VET FEST / MIDAMERICA SERIES 2025-05-03 · Archview MX Park0

2023

PosClassEvent / Track#BikePts
245 PlusAMA D18 — MoState MX Series 2023-07-09 · Archview MX Park13
640 PlusAMA D18 — MoState MX Series 2023-07-09 · Archview MX Park0
140+ AAMA D18 — Motocross - Moto Mid West 2023-05-07 · Archview MX Park0
1+45AMA D18 — Motocross - Moto Mid West 2023-05-07 · Archview MX Park0

2019

PosClassEvent / Track#BikePts
917. 30+ AAMA D17 — Fly Racing Showdown Series 2019-10-202
819. 40+ AAMA D17 — Fly Racing Showdown Series 2019-10-203
99917. 30+ AAMA D17 — Fly Racing Showdown Series 2019-09-01

2018

PosClassEvent / Track#BikePts
519. 40+ AAMA D17 — Fly Racing Showdown Series 2018-10-207
417. 30+ AAMA D17 — Fly Racing Showdown Series 2018-10-209
219. 40+AMA D17 — Fly Racing Showdown Series/Kentuckiana MX Championship 2018-09-0213
317. 30+ AAMA D17 — Fly Racing Showdown Series/Kentuckiana MX Championship 2018-09-0211

2017

PosClassEvent / Track#BikePts
519_ 40+AMA D17 — Fly Racing Showdown Series 2017-09-037
717_ 30+ AAMA D17 — Fly Racing Showdown Series 2017-09-034
329. 35 PlusAMA D18 — Mid America MX Series 2017-07-160
330. 40 PlusAMA D18 — Mid America MX Series 2017-07-1611

2016

PosClassEvent / Track#BikePts
430. 40 PlusAMA D18 — Mid America Mx Series 2016-11-069
628. 30 PlusAMA D18 — Mid America Mx Series 2016-11-065
517_ 30+ AAMA D17 — Fly Racing Showdown 2016-10-087
419_ 40+AMA D17 — Fly Racing Showdown 2016-10-0811
619_ 40+AMA D17 — Fly Racing Showdown 2016-09-047
617_ 30+ AAMA D17 — Fly Racing Showdown 2016-09-045
417_ 30+ AAMA D17 — Fly Racing Showdown 2016-08-219
519_ 40+AMA D17 — Fly Racing Showdown 2016-08-217
417_ 30+ AAMA D17 — Fly Racing Showdown Series 2016-06-129
219_ 40+AMA D17 — Fly Racing Showdown Series 2016-06-1213
817_ 30+ AAMA D17 — Fly Racing Showdown Series 2016-05-293
619_ 40+AMA D17 — Fly Racing Showdown Series 2016-05-299

2015

PosClassEvent / Track#BikePts
528. 30 PlusAMA D18 — Lachance Racing 2015-09-277
530. 40 PlusAMA D18 — Lachance Racing 2015-09-277
528. 30 PlusAMA D18 — Lachance Racing 2015-09-137
88830. 40 PlusAMA D18 — Lachance Racing 2015-09-130
417_ 30+ AAMA D17 — Fly Racing Showdown Series 2015-09-069
119_ 40+AMA D17 — Fly Racing Showdown Series 2015-09-060
428. 30 PlusAMA D18 — Lachance Racing 2015-08-299
230. 40 PlusAMA D18 — Lachance Racing 2015-08-2913
9+40 AAMA D17 — 4p Promotions Inc 2015-06-272
7+35 AAMA D17 — 4p Promotions Inc 2015-06-274
430. 40 PlusAMA D18 — Lachance Racing 2015-05-249
728. 30 PlusAMA D18 — Lachance Racing 2015-05-244

2014

PosClassEvent / Track#BikePts
320. 30+ AAMA D17 — Spider Graphix 2014-09-140
519. 25+AMA D17 — Spider Graphix 2014-09-146
428. 30 PlusAMA D17 — Lachance Racing 2014-09-07
626. 25 PlusAMA D17 — Lachance Racing 2014-09-076
419. 25+AMA D17 — Fly Racing Showdown Series 2014-08-03
420. 30+ AAMA D17 — Fly Racing Showdown Series 2014-08-030
620. 30+ AAMA D17 — Grass Roots MX Championship 2014-06-295
719. 25+AMA D17 — Grass Roots MX Championship 2014-06-295
628. 30 PlusAMA D18 — Mid America MX Series 2014-04-066
226. 25 PlusAMA D18 — Mid America MX Series 2014-04-06

2013

PosClassEvent / Track#BikePts
425+AMA D17 — Fly Racing Showdown Series 2013-10-26
330+AAMA D17 — Fly Racing Showdown Series 2013-10-2612
428. 30 PlusAMA D18 — Seat Time Motorcycle Club 2013-10-20
229. 35 PlusAMA D18 — Seat Time Motorcycle Club 2013-10-20
4Vet 25+AMA D18 — The Fall Throwdown 2013-10-06
4Vet 30+AMA D18 — The Fall Throwdown 2013-10-06
725+AMA D17 — Fall Classic Pro Am 2013-09-15
430+AAMA D17 — Fall Classic Pro Am 2013-09-159
230+ AAMA D17 — FLY Racing Showdown Series 2013-07-270
135+AMA D17 — FLY Racing Showdown Series 2013-07-27
7+30 AAMA D17 — Racer-X Vet Series - Sunset Ridge MX 2013-07-20 · Sunset Ridge MX4
8+35 AAMA D17 — Racer-X Vet Series - Sunset Ridge MX 2013-07-20 · Sunset Ridge MX3
530+ AAMA D17 — District 17 MX 2013-06-236
825+AMA D17 — District 17 MX 2013-06-23
335AMA D17 — Megacross 2013-06-22 · Megacross

2012

PosClassEvent / Track#BikePts
4Vet 35+AMA D18 — MotoMidwest Series- Round 10 2012-10-210
2Vet 30+AMA D18 — MotoMidwest Series- Round 10 2012-10-210
230+ AAMA D17 — 4p Promotions Inc 2012-09-300
525+AMA D17 — 4p Promotions Inc 2012-09-300
625+AMA D17 — District 17 Motocross Bike Only Weekend 2012-09-290
130+ AAMA D17 — District 17 Motocross Bike Only Weekend 2012-09-290
10+35 AAMA D17 — 4p Promotions Inc 2012-07-218
10+30 AAMA D17 — 4p Promotions Inc 2012-07-218
630+ AAMA D17 — 4p Promotions Inc 2012-06-245
425+AMA D17 — 4p Promotions Inc 2012-06-240
7Vet +25AMA D18 — District 18 points Championship 2012-05-270
2Vet +30AMA D18 — District 18 points Championship 2012-05-270
235+AMA D17 — Lincoln Trail Motosports 2012-04-01 · Lincoln Trail Motosports0
630+ AAMA D17 — Lincoln Trail Motosports 2012-04-01 · Lincoln Trail Motosports5

2011

PosClassEvent / Track#BikePts
2Vet 35+AMA D17 — Archview Mx Park Llc 2011-10-23 · Archview MX Park0
1Vet 30+AMA D17 — Archview Mx Park Llc 2011-10-23 · Archview MX Park0
535 Plus AAMA D17 — Motosports Enterprises Ltd 2011-10-016
730 Plus AAMA D17 — Motosports Enterprises Ltd 2011-10-014
12+30 AAMA D17 — 4p Promotions Inc 2011-07-236
10+35 AAMA D17 — 4p Promotions Inc 2011-07-231

2010

PosClassEvent / Track#BikePts
6Vet +25 AAMA D18 — Paradise Motopark Inc 2010-10-30 · Paradise Moto Park5
1Vet +30 AAMA D18 — Paradise Motopark Inc 2010-10-30 · Paradise Moto Park0
125+AMA D17 — Crossroads Mx 2010-10-23 · Crossroads MX and Off-Road Park0
130+ AAMA D17 — Crossroads Mx 2010-10-23 · Crossroads MX and Off-Road Park0
6+30A VetAMA D18 — Archview Mx Park Llc 2010-10-17 · Archview MX Park5
4+35A VETAMA D18 — Archview Mx Park Llc 2010-10-17 · Archview MX Park9
525+AMA D17 — 4p Promotions Inc 2010-10-100
730+ AAMA D17 — 4p Promotions Inc 2010-10-104
230+ AAMA D17 — Lincoln Trail Motosports 2010-10-03 · Lincoln Trail Motosports0
135+AMA D17 — Lincoln Trail Motosports 2010-10-03 · Lincoln Trail Motosports0
635 PLUSAMA D18 — Archview Mx Park Llc 2010-09-12 · Archview MX Park0
230 PLUSAMA D18 — Archview Mx Park Llc 2010-09-12 · Archview MX Park0
7+35AMA D17 — 4p Promotions Inc 2010-08-140
10+30AMA D17 — 4p Promotions Inc 2010-08-140
230+ AAMA D17 — Crossroads Mx 2010-05-23 · Crossroads MX and Off-Road Park16
525+AMA D17 — Crossroads Mx 2010-05-23 · Crossroads MX and Off-Road Park0
330+ AAMA D17 — Crossroads Mx 2010-05-22 · Crossroads MX and Off-Road Park12
625+AMA D17 — Crossroads Mx 2010-05-22 · Crossroads MX and Off-Road Park0

2009

PosClassEvent / Track#BikePts
2Vet +25 AAMA D18 — Euro Raceway 2009-10-04 · Euro Raceway0
3Vet +30 AAMA D18 — Euro Raceway 2009-10-04 · Euro Raceway0
825+AMA D17 — Motosports Enterprises Ltd 2009-09-060
230+ BAMA D17 — Motosports Enterprises Ltd 2009-09-0620
17Open BAMA D17 — Motosports Enterprises Ltd 2009-07-261
330+ BAMA D17 — Motosports Enterprises Ltd 2009-07-260
425+AMA D17 — Motosports Enterprises Ltd 2009-07-260
430+ AAMA D17 — Lincoln Trail Motosports 2009-07-19 · Lincoln Trail Motosports9
225+AMA D17 — Lincoln Trail Motosports 2009-07-19 · Lincoln Trail Motosports0
330+ AAMA D17 — Lincoln Trail Motosports 2009-07-18 · Lincoln Trail Motosports0
325+AMA D17 — Lincoln Trail Motosports 2009-07-18 · Lincoln Trail Motosports0
730 +AAMA D17 — 4p Promotions Inc 2009-05-314
1325+AMA D17 — 4p Promotions Inc 2009-05-310
330 +AAMA D17 — 4p Promotions Inc 2009-05-300
325+AMA D17 — 4p Promotions Inc 2009-05-300
3VET +30 AAMA D18 — Splinter Creek Dirt Riders Inc 2009-04-26 · Splinter Creek Dirt Riders12
8Vet +25 AAMA D18 — Splinter Creek Dirt Riders Inc 2009-04-26 · Splinter Creek Dirt Riders0
514. Vet B/C 30 +AMA D18 — Paradise Motopark Inc 2009-03-14 · Paradise Moto Park0
713. Junior 25+AMA D18 — Paradise Motopark Inc 2009-03-14 · Paradise Moto Park0

2008

PosClassEvent / Track#BikePts
310. JUNIOR 25 PLUSAMA D18 — Hlr Motorsports Inc 2008-11-020
2+30 MONEYAMA D18 — Hlr Motorsports Inc 2008-11-020
530 +AAMA D17 — 4p Promotions Inc 2008-10-126
625 +AMA D17 — 4p Promotions Inc 2008-10-120
6VET 30 AAMA D18 — Euro Raceway 2008-10-05 · Euro Raceway5
7VET 25 AAMA D18 — Euro Raceway 2008-10-05 · Euro Raceway4
2Open AAMA D18 — Action Motocross Llc 2008-09-280
830 PLUSAMA D18 — Archview Mx Park Llc 2008-09-210
7+25AMA D18 — Archview Mx Park Llc 2008-09-210
325+ AAMA D18 — Action Motocross Llc 2008-07-200
2Vet 30+ AAMA D18 — Action Motocross Llc 2008-07-200
630 + VET BAMA D23 — Hiwinders 2008-07-1312
525+BAMA D23 — Hiwinders 2008-07-1314
525+ AAMA D18 — Highway 47 Mx 2008-07-066
2Vet 30+ AAMA D18 — Highway 47 Mx 2008-07-0616
5MX 25+ A 122CC OPENAMA D18 — Motocross Parents 2008-06-010
3MX 30+ A 122CC OPENAMA D18 — Motocross Parents 2008-06-010
11VET 25+ AAMA D18 — Archview Mx Park Llc 2008-05-25 · Archview MX Park0
7VET 30+ AAMA D18 — Archview Mx Park Llc 2008-05-25 · Archview MX Park4
7MX + 25 A 122CC-OPENAMA D18 — Splinter Creek Dirt Riders Inc 2008-04-27 · Splinter Creek Dirt Riders4
6MX + 30 A 122CC-OPENAMA D18 — Splinter Creek Dirt Riders Inc 2008-04-27 · Splinter Creek Dirt Riders5

2007

PosClassEvent / Track#BikePts
3+30 AAMA D18 — South Central Motocross 2007-10-2113
3+25AAMA D18 — South Central Motocross 2007-10-2113
1+30 MONEYAMA D18 — Hlr Motorsports Inc 2007-09-150
2+25 MONEYAMA D18 — Hlr Motorsports Inc 2007-09-150
325AMA D18 — Paradise Motopark Inc 2007-09-02 · Paradise Moto Park0
530AMA D18 — Paradise Motopark Inc 2007-09-02 · Paradise Moto Park0
3A Class AdvancementAMA D18 — Mitchells Mx Park Llc 2007-07-2213
4+30 AAMA D18 — South Central Motocross 2007-06-1711
2+25 AAMA D18 — South Central Motocross 2007-06-1716
10B Class AdvancementAMA D17 — Motosports Enterprises Ltd 2007-05-1911
11B Class AdvancementAMA D17 — Motosports Enterprises Ltd 2007-05-1910
3MX + 25AMA D18 — Belleville Enduro Team Inc 2007-05-120
4MX +30AMA D18 — Belleville Enduro Team Inc 2007-05-120
4MX Vet +25AMA D18 — Splinter Creek Dirt Riders Inc 2007-04-29 · Splinter Creek Dirt Riders0
6MX Vet +30AMA D18 — Splinter Creek Dirt Riders Inc 2007-04-29 · Splinter Creek Dirt Riders0
125+ A (86cc-open)AMA D18 — Motocross Parents 2007-03-240
3VETERAN 30+ A (86cc-open)AMA D18 — Motocross Parents 2007-03-2413

2006

PosClassEvent / Track#BikePts
2+25AMA D18 — South Central Motocross 2006-10-220
3+30AMA D18 — South Central Motocross 2006-10-220
2MX Vet 25AMA D18 — Splinter Creek Dirt Riders Inc 2006-10-08 · Splinter Creek Dirt Riders0
4MX Vet 30AMA D18 — Splinter Creek Dirt Riders Inc 2006-10-08 · Splinter Creek Dirt Riders0
4+25AMA D18 — Paradise Motopark Inc 2006-10-01 · Paradise Moto Park0
5+30AMA D18 — Paradise Motopark Inc 2006-10-01 · Paradise Moto Park0
325+AMA D17 — Crossroads Mx 2006-09-10 · Crossroads MX and Off-Road Park13
330+ AAMA D17 — Crossroads Mx 2006-09-10 · Crossroads MX and Off-Road Park13
230+ AAMA D17 — Crossroads Mx 2006-09-09 · Crossroads MX and Off-Road Park0
125+AMA D17 — Crossroads Mx 2006-09-09 · Crossroads MX and Off-Road Park0
1+25AMA D18 — Action Motocross Llc 2006-07-300
1+30AMA D18 — Action Motocross Llc 2006-07-300
2+25AMA D18 — Action Motocross Llc 2006-06-180
5+30AMA D18 — Action Motocross Llc 2006-06-180
10+30 AAMA D18 — Midwest Motosport 2006-05-285
6+25 AAMA D18 — Midwest Motosport 2006-05-289
3Plus 30AMA D18 — Motocross Parents 2006-05-140
2Plus 25AMA D18 — Motocross Parents 2006-05-140
2+25AMA D18 — Highway 47 Mx 2006-05-070
1+30AMA D18 — Highway 47 Mx 2006-05-070
2+30AMA D18 — South Central Motocross 2006-04-230
3+25AMA D18 — South Central Motocross 2006-04-230

Career record compiled from public race results (RaceReady, Trackside Results). Riders sharing a name and hometown may be merged; numbers and bikes shown are every one we've seen this rider use. Verify against official results before relying on a finish.