Yo Mamma
Career snapshot
25Outs
12Buckoffs
48.0%Buckoff %
42.47Avg bull score
44.00High score
045+ outs
2.48sAvg buckoff time
3Best streak
Career average on the 50-point bull scale42.47
Career Shape
25 scored outs0.0%Buckoffs under 3s
25.0%Riders dumped after 6s
±0.84Score volatility
The thin line is every scored out in career order; the bold line is his rolling eight-out average — the shape the title formula sees. Volatility is one standard deviation around his career average: low means a metronome, high means boom-or-bust.
Performance by Season
Season Statistics
| Season | Series | Rank | Outs | Rides | Buckoff % | Avg score | High | 45+ | Top-8 avg |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | Velocity Tour | 360 | 5 | 2 | 60.0% | 41.84 | 42.35 | 0 | 41.84 |
| 2026 | PBR Team Series | 75 | 4 | 2 | 50.0% | 43.74 | 44.00 | 0 | 43.74 |
| 2026 | Unleash The Beast | 305 | 3 | 2 | 33.3% | 41.72 | 42.20 | 0 | 41.72 |
| 2025 | Touring Pro Division | 124 | 1 | 0 | 100.0% | 42.50 | 42.50 | 0 | 42.50 |
| 2025 | PBR Team Series | 86 | 9 | 6 | 33.3% | 42.61 | 44.00 | 0 | 43.10 |
| 2025 | Unleash The Beast | 218 | 3 | 1 | 66.7% | 42.17 | 42.50 | 0 | 42.17 |
One row per circuit per season, as published by PBR's scoring system. Only Unleash The Beast counts toward the World Champion Bull title — how the races fit together.
Head-to-Head
Riders who have faced Yo Mamma at least twice.
| Rider | Meetings | Rides | Buckoffs | Avg bull score | Best bull score | Best ride |
|---|---|---|---|---|---|---|
| Guilherme Valleiras | 3 | 3 | 0 | 42.33 | 43.00 | 88.75 |
| Paulo Eduardo Rossetto | 2 | 1 | 1 | 43.00 | 44.00 | 86.50 |
| Cort McFadden | 2 | 1 | 1 | 42.35 | 42.50 | 86.45 |
Ride History
25 recorded outs| Date | Rider | Result | Time | Bull score | Ride score | Series | Event |
|---|---|---|---|---|---|---|---|
| Oct 4, 2026 | Brady Fielder | Ridden | 8.00s | 43.80 | 91.75 | PBR Teams | Arizona Ridge Riders @ Texas Rattlers |
| Oct 2, 2026 | Paulo Eduardo Rossetto | Buckoff | 3.81s | 44.00 | — | PBR Teams | Arizona Ridge Riders @ Missouri Thunder |
| Sep 13, 2026 | João Lucas Campos | Buckoff | 5.99s | 43.90 | — | PBR Teams | Austin Gamblers @ Florida Freedom |
| Sep 11, 2026 | Kaique Pacheco | Ridden | 8.00s | 43.25 | 88.30 | PBR Teams | New York Mavericks @ Austin Gamblers |
| Feb 20, 2026 | Chase Hamlin | Ridden | 8.00s | 42.10 | 86.00 | Pendleton Whisky Velocity Tour | PBR RENO |
| Feb 7, 2026 | Stetson Long | Buckoff | 4.59s | 41.45 | — | Pendleton Whisky Velocity Tour | PBR GRAND FORKS |
| Jan 24, 2026 | Andrew Alvidrez | Ridden | 8.00s | 40.95 | 84.15 | Unleash The Beast | PBR TAMPA |
| Jan 23, 2026 | Clay Guiton | Buckoff | 5.19s | 42.00 | — | Unleash The Beast | PBR TAMPA |
| Jan 10, 2026 | Cort McFadden | Ridden | 8.00s | 42.20 | 86.45 | Unleash The Beast | PBR MONSTER ENERGY BUCK OFF AT THE GARDEN PRESENTED BY ARIAT |
| Dec 20, 2025 | Manoelito de Souza Junior | Ridden | 8.00s | 42.35 | 86.70 | Pendleton Whisky Velocity Tour | BEATBOX PBR TUCSON |
| Dec 19, 2025 | Perico Enjady | Buckoff | 3.21s | 41.15 | — | Pendleton Whisky Velocity Tour | BEATBOX PBR TUCSON |
| Dec 6, 2025 | Guthrie Long | Buckoff | 3.53s | 42.15 | — | Pendleton Whisky Velocity Tour | PBR ST. LOUIS |
| Oct 24, 2025 | Guilherme Valleiras | Ridden | 8.00s | 41.50 | 85.50 | PBR Teams | Game 1: 3-Way Game: #8 Kansas City Outlaws vs. #9 Oklahoma Wildcatters vs. #10 New York Mavericks |
| Sep 28, 2025 | Paulo Eduardo Rossetto | Ridden | 8.00s | 42.00 | 86.50 | PBR Teams | Missouri Thunder @ Carolina Cowboys |
| Sep 26, 2025 | Eduardo Aparecido | Ridden | 8.00s | 42.00 | 86.50 | PBR Teams | Arizona Ridge Riders @ Carolina Cowboys |
| Aug 31, 2025 | Lucas Divino | Ridden | 8.00s | 42.75 | 87.75 | PBR Teams | Austin Gamblers @ New York Mavericks |
| Aug 29, 2025 | Guilherme Valleiras | Ridden | 8.00s | 42.50 | 87.25 | PBR Teams | Oklahoma Wildcatters @ Carolina Cowboys |
| Aug 24, 2025 | Guilherme Valleiras | Ridden | 8.00s | 43.00 | 88.75 | PBR Teams | Oklahoma Wildcatters @ Kansas City Outlaws |
| Aug 22, 2025 | Maverick Smith | Buckoff | 7.06s | 44.00 | — | PBR Teams | Missouri Thunder @ New York Mavericks |
| Jul 13, 2025 | Cort McFadden | Buckoff | 7.80s | 42.50 | — | PBR Teams | Austin Gamblers @ Oklahoma Wildcatters |
| Jul 12, 2025 | Alan de Souza | Buckoff | 3.87s | 43.25 | — | PBR Teams | Nashville Stampede @ New York Mavericks |
| Mar 29, 2025 | Leonardo Castro | Ridden | 8.00s | 42.00 | 86.25 | Unleash The Beast | PBR ALBUQUERQUE TY MURRAY INVITATIONAL |
| Mar 15, 2025 | Julio Cesar Marques | Buckoff | 7.23s | 42.50 | — | Unleash The Beast | KUBOTA PBR LOUISVILLE |
| Mar 14, 2025 | Aaron Williams | Buckoff | 4.72s | 42.00 | — | Unleash The Beast | KUBOTA PBR LOUISVILLE |
| Dec 26, 2024 | Ednélio Rodrigues | Buckoff | 4.99s | 42.50 | — | Touring Pro Division - USA | PBR STOCKYARDS SHOWCASE |
Career Milestones
- Dec 26, 2024 First recorded out at PBR STOCKYARDS SHOWCASE.
- Aug 22, 2025 Career-high bull score of 44.00 points at Missouri Thunder @ New York Mavericks.
- Oct 4, 2026 25th recorded out.
Source: PBR Data API ride records for Yo Mamma. Derived figures (matchups, milestones) are calculated by WorldChampionBull from those records. About this data →