# Mason Massey

William Mason Massey IV (born January 24, 1997) is an American professional stock car racing driver. He competes part-time in the NASCAR Xfinity Series, driving the No. 45 Chevrolet SS for Alpha Prime Racing. Massey has recorded over 200 feature wins, 11 championships, and 10 track records across multiple classes.

## Racing career
### K&N Pro Series East

Massey competed in two NASCAR K&N Pro Series East races in 2014 for DRIVE Technology.

### Craftsman Truck Series

Massey made his NASCAR Gander Outdoors Truck Series debut in the 2019 M&M's 200 at Iowa Speedway. He placed 22nd in the event, and was moved up one position after Ross Chastain's DQ.
He was scheduled to run the full NASCAR Craftsman Truck Series in 2023 for Reaume Brothers Racing in the No. 33 Ford F-150, but left the team 7 races into the season. On April 1, 2023, at Texas Motor Speedway in the SpeedyCash.com 250, Massey had his best career Truck Series finish of 11th place.
On February 12, 2024, it was announced that Massey would run full-time in the Truck Series in 2024, driving the No. 02 truck for Young's Motorsports.

### Xfinity Series

On January 28, 2020, it was announced that Massey would drive the No. 99 for B. J. McLeod Motorsports for a portion of the 2020 NASCAR Xfinity Series season, with his first race at Las Vegas Motor Speedway. After the season was over, Massey returned to a track that he raced earlier in his career to win the dirt crate late model feature at Senoia Raceway's Fall Nationals.
Massey rejoined BJMM and the No. 99 on a 12-race schedule in 2021.
In 2022, he joined DGM Racing to drive the No. 91 for every oval race. Massey achieved a career-best 6th place finish at the spring Atlanta race.
In 2023 he drove 5 races for SS-Green Light Racing and DNQ'd once for Alpha Prime Racing.
In 2025, he competed part-time with Alpha Prime Racing in the No. 45 Chevrolet.

## Personal life

Massey suffers from stuttering, which was the subject of a short film titled "Dust and Dirt", which was showcased at the Sundance Film Festival in 2017.

## Motorsports career results
### NASCAR

(key) (Bold – Pole position awarded by qualifying time. Italics – Pole position earned by points standings or practice time. * – Most laps led.)

#### Xfinity Series

NASCAR Xfinity Series results :
| Year | Team | No. | Make | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | NXSC | Pts |
| 2020 | B. J. McLeod Motorsports | 99 | Toyota | DAY | LVS 29 | CAL | PHO | DAR 30 | CLT 21 | BRI 30 | ATL 23 | HOM | HOM | TAL 20 | POC | IRC | KEN 28 | KEN 23 | TEX | KAN | ROA | DRC | DOV | DOV | DAY | DAR | | | | | | | | | | | 37th | 118 |
| 2020 | B. J. McLeod Motorsports | 78 | Toyota | | | | | | | | | | | | | | | | | | | | | | | | RCH 27 | RCH 21 | BRI | LVS | TAL | ROV | KAN | TEX | MAR | PHO | 37th | 118 |
| 2021 | B. J. McLeod Motorsports | 99 | Toyota | DAY | DRC | HOM | LVS | PHO | ATL 32 | MAR | TAL 27 | DAR | DOV | COA | CLT | MOH | TEX | NSH | POC 30 | ROA | ATL 29 | | | | | | | | | | | | | | | | 39th | 116 |
| 2021 | B. J. McLeod Motorsports | 99 | Chevy | | | | | | | | | | | | | | | | | | | NHA 40 | GLN | IRC | | | | | | | | | | | | | | | | | | | | | | 39th | 116 |
| 2021 | B. J. McLeod Motorsports | 78 | Toyota | | | | | | | | | | | | | | | | | | | | | | MCH 30 | DAY 25 | | RCH 17 | BRI | | TAL 35 | ROV | | | | | | | 39th | 116 | |
| 2021 | SS-Green Light Racing with Rick Ware Racing | 17 | Chevy | | | | | | | | | | | | | | | | | | | | | | | | DAR 18 | | | | | | | | | | | | | | | | | 39th | 116 |
| 2021 | B. J. McLeod Motorsports | 78 | Chevy | | | | | | | | | | | | | | | | | | | | | | | | | | | LVS 23 | | | | | | | | | | | 39th | 116 | |
| 2021 | B. J. McLeod Motorsports | 5 | Toyota | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TEX 27 | KAN 37 | MAR | PHO | 39th | 116 |
| 2022 | DGM Racing | 91 | Chevy | DAY DNQ | CAL 28 | LVS 27 | PHO 23 | ATL 6 | COA | RCH 17 | MAR 33 | TAL 37 | DOV 34 | DAR 22 | TEX 18 | CLT DNQ | PIR | NSH DNQ | ROA | ATL 24 | NHA 9 | POC 24 | IRC | MCH 24 | GLN | DAY 33 | DAR 20 | KAN 31 | BRI 32 | TEX 32 | TAL 38 | ROV | LVS 29 | HOM 37 | MAR 25 | PHO 33 | 28th | 256 |
| 2023 | SS-Green Light Racing | 08 | Ford | DAY | CAL | LVS | PHO | ATL | COA | RCH | MAR | TAL | DOV | DAR | CLT | PIR | SON | NSH 32 | CSC | | NHA 10 | POC | ROA | | | | | | KAN 16 | BRI | TEX | ROV | LVS | HOM 27 | MAR | PHO | 41st | 76 |
| 2023 | SS-Green Light Racing | 08 | Chevy | | | | | | | | | | | | | | | | | ATL 24 | | | | | | | | | | | | | | | | | | | | | | | | | | | | 41st | 76 |
| 2023 | Alpha Prime Racing | 44 | Chevy | | | | | | | | | | | | | | | | | | | | | MCH DNQ | IRC | GLN | DAY | DAR | | | | | | | | | | | | | | | 41st | 76 | |
| 2024 | SS-Green Light Racing | 14 | Chevy | DAY | ATL | LVS | PHO | COA | RCH | MAR | TEX | TAL 11 | DOV | DAR | CLT | PIR | SON | IOW | NHA 30 | NSH | CSC | | | | | | | | | | | | | | | | 93rd | 0$^1$ |
| 2024 | SS-Green Light Racing | 14 | Ford | | | | | | | | | | | | | | | | | | | POC 29 | IND | MCH | DAY | DAR | ATL | GLN | BRI | KAN | TAL | ROV | LVS | HOM | MAR | PHO | 93rd | 0$^1$ |
| 2025 | Alpha Prime Racing | 45 | Chevy | DAY | ATL 28 | COA | PHO 22 | LVS 37 | HOM | MAR | DAR | BRI | CAR | TAL | TEX | CLT | NSH | MXC | POC | ATL | CSC | SON | DOV | IND | IOW | GLN | DAY | PIR | GTW | BRI | KAN | ROV | LVS | TAL | MAR | PHO | -* | -* |

#### Craftsman Truck Series

NASCAR Craftsman Truck Series results :
| Year | Team | No. | Make | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | NCTC | Pts |
| 2019 | Reaume Brothers Racing | 34 | Chevy | DAY | ATL | LVS | MAR | TEX | DOV | KAN | CLT | TEX | IOW 21 | GTW | | | | ELD 23 | MCH | BRI | MSP | | | | | | 37th | 94 |
| 2019 | Reaume Brothers Racing | 32 | Toyota | | | | | | | | | | | | CHI 26 | | | | | | | | | | | | | | | | 37th | 94 |
| 2019 | Reaume Brothers Racing | 33 | Chevy | | | | | | | | | | | | | KEN 18 | | | | | | LVS 28 | TAL 32 | MAR | PHO | HOM | 37th | 94 |
| 2019 | Reaume Brothers Racing | 34 | Toyota | | | | | | | | | | | | | | POC 17 | | | | | | | | | | | | 37th | 94 | |
| 2023 | Reaume Brothers Racing | 33 | Ford | DAY 24 | LVS 27 | ATL 29 | COA DNQ | TEX 11 | BRD 35 | MAR 33 | KAN | DAR | NWS | CLT | GTW | NSH | MOH | POC | | | | | | | | | 99th | 0$^1$ |
| 2023 | Young's Motorsports | 20 | Chevy | | | | | | | | | | | | | | | | RCH 34 | IRP | MLW | KAN | BRI | TAL | HOM | PHO | 99th | 0$^1$ |
| 2024 | Young's Motorsports | 02 | Chevy | DAY 25 | ATL 20 | LVS 21 | BRI 28 | COA 35 | MAR 11 | TEX 20 | KAN 21 | DAR 15 | NWS 23 | CLT 18 | GTW 31 | NSH 32 | POC 24 | IRP 35 | RCH 26 | MLW | BRI | KAN | TAL | HOM | MAR | PHO | 29th | 207 |
$^*$ Season still in progress $^1$ Ineligible for series points

#### K&N Pro Series East

NASCAR K&N Pro Series East results :
| Year | Team | No. | Make | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | NKNPSEC | Pts | Ref |
| 2014 | DRIVE Technology | 18 | Toyota | NSM | DAY | BRI | GRE | RCH | IOW | BGS | FIF | LGY 22 | NHA | COL 16 | IOW | GLN | VIR | GRE | DOV | 45th | 50 | |