P · 2019
Ronald Bolaños
- Age
- 26
- B/T
- R/R
- Height
- 6' 2"
- Weight
- 230 lb
- Born
- August 23, 1996 in Santa Cruz del Norte, Cuba
- MLB debut
- September 3, 2019
Age shown as of the 2022 season.
- dbWAR
- -.4 5 season(s)
- PA
- 5
- AVG
- .000
- OBP
- .000
- SLG
- .000
- wRC+
- -124 100 = avg
Ronald Bolaños is a pitcher for the San Diego Padres. In 2019 he hit 0 home runs and knocked in 1 RBI, notching 0 hits across 5 plate appearances in 3 games. His batting average was .000, 100.0% lower than the league average of .252. He reached base at a .000 clip and slugged .000, for an OPS of .000, 100.0% lower than the league mark of .758. He averaged 90.6 mph off the bat and made contact on 22.2% of his swings. Adjusted for his ballpark and league, his -124 wRC+ puts his offence 224% below average. That comes to -0.1 dbWAR — -1.4 runs with the bat, +0.0 on the bases, +0.0 for the position he plays, against replacement level. It includes no fielding: defensive runs are proprietary and are not estimated here, so the figure credits playing a demanding position but not playing it well.
League context
Percentile among qualified batters, 2019.
How the WAR is built
Runs above replacement, 2019. These four terms sum to -1.2 runs, divided by runs-per-win to give WAR.
Batting
Standard and advanced, by season.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | 3 | 5 | 0 | 0 | 1 | 0 | 0 | 4 | .000 | .000 | .000 | .000 | .000 | 0.0% | 80.0% | .000 | -1.4 | -124 | -0.1 | — |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 8 | 0 | 18.1 | 0 | 0 | 0 | 20 | 9 | 12 | 12 | 4.42 | 5.68 | 1.75 | 5.9 | 5.9 | 111 | 143 | -0.3 | |
| 2021 | 3 | 0 | 6.1 | 0 | 0 | 0 | 4 | 1 | 10 | 2 | 1.42 | 0.96 | 0.95 | 14.2 | 2.8 | 33 | 22 | 0.3 | |
| 2020 | 2 | 2 | 3.2 | 0 | 2 | 0 | 8 | 5 | 2 | 3 | 12.27 | 12.46 | 3.00 | 4.9 | 7.4 | 276 | 280 | -0.3 | |
| 2019 | 5 | 3 | 19.2 | 0 | 2 | 0 | 17 | 13 | 19 | 12 | 5.95 | 5.25 | 1.47 | 8.7 | 5.5 | 132 | 116 | -0.0 |
Platoon splits
How he hits left- and right-handed pitching.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHP | 1 | 1 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0.0% |
| vs RHP | 4 | 4 | 0 | 0 | 0 | 4 | .000 | .000 | .000 | .000 | 100.0% |
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 48 | 40 | 10 | 2 | 7 | 10 | .250 | .354 | .525 | .366 | 20.8% |
| vs RHB | 40 | 34 | 7 | 1 | 5 | 9 | .206 | .325 | .382 | .313 | 22.5% |
Spray chart
Where every ball he put in play landed, 2019.
Loading 1 batted balls…
Contact quality
How hard and at what angle he hits it, over 1 tracked batted balls in 2019. Percentiles are against qualified batters.
- Barrel rate
- 0.0% 0 barrels
- Exit velocity
- 90.6 mph average
- Max exit velo
- 90.6 mph, hardest hit
- Hard hit
- 0.0% 95 mph or better
- Sweet spot
- 0.0% 8–32° launch
- Launch angle
- 3.0° average
A barrel is a batted ball whose exit velocity and launch angle have historically produced at least a .500 average and 1.500 slugging — 98 mph within 26–30°, widening to 8–50° by 116 mph. Reconstructed from Statcast's published anchor points, which reproduces them exactly; the interior is within a degree. Sweet spot (8–32°) is an exact definition.
Hot and cold zones
Batting average by pitch location, 2019.
Situational hitting
How Ronald Bolaños hits by base state, outs, score and late-game pressure — each read against his own season line.
| Situation | PA | AB | H | HR | RBI | BB | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|
| All situations | 5 | — | — | — | — | — | — | .000 | .000 | .000 | .000 |
| Bases empty · thin | 4 | 4 | 0 | 0 | 0 | 0 | 4 | .000 | .000 | .000 | .000 |
| Runners on · thin | 1 | 1 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 |
| RISP · thin | 1 | 1 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 |
Runners on includes runners in scoring position, which is the convention every reference uses. Rows under 25 plate appearances are marked thin — at that size a rate moves several dozen points on one hit. Counted from play-by-play, 2019.
Pitch sequencing
What Ronald Bolaños throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Ronald Bolaños throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2019.
| Four-Seam Fastball | 189 | 94.3 | 2,238 | 40.7% | 12.3% | |
| Curveball | 71 | 76.4 | 2,650 | 47.9% | 55.2% | |
| Slider | 38 | 83.0 | 2,573 | 39.5% | 23.5% | |
| Sinker | 28 | 94.1 | 2,238 | 46.4% | 25.0% | |
| Changeup | 18 | 86.2 | 1,375 | 16.7% | 50.0% |
Head to head
Put Ronald Bolaños beside up to three others.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.