Player Information
| Team | PIT |
Pos | RP |
Age | 30 |
| Throws | R |
$/Game | -3.3 |
RCL R% | 0 |
Razzball 2026 rest of season projections for Isaac Mattson of the Pittsburgh Pirates have him as the
#510 ranked player and #157 relief pitcher (RP) worth $-9.6 in standard 12 team 5x5 mixed leagues for fantasy baseball.
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2026 Fantasy Outlook
| Grey Albright's 2026 Player Summary |
|---|
Isaac Mattson Stats
| G | GS | QS | W | L | SV | HLD | IP | TBF | H | ER | HR | BB | K | ERA | FIP | WHIP | BABIP | H/9 | K/9 | BB/9 | HR/9 | K% | BB% | $ |
|---|
| Last 7 Days | | | | | | | | | | | | | | | | | | | | | | | | | |
| Last 30 Days | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1.0 | 10 | 2 | 1 | 0 | 0 | 0 | 9.00 | 3.03 | 2.00 | 0.600 | 18.0 | 0.0 | 0.0 | 0.0 | 30.0 | 20.0 | -25.1 |
| Season | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1.7 | 10 | 3 | 2 | 0 | 2 | 3 | 10.80 | 3.14 | 3.00 | 0.600 | 15.9 | 15.9 | 10.6 | 0.0 | 30.0 | 20.0 | -45.8 |
| ROS Proj | 64 | 0 | 0 | 3 | 3 | 0 | 13 | 63.6 | 276 | 58 | 31 | 8 | 29 | 59 | 4.35 | 4.46 | 1.36 | 0.283 | 8.2 | 8.3 | 4.1 | 1.1 | 21.4 | 10.4 | -9.6 |
Isaac Mattson 2026 Projections | Preseason
Isaac Mattson daily MLB projections and fantasy value for probable starts in next 7-10 days. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".
Isaac Mattson daily fantasy baseball projections for DFS sites such as DraftKings and FanDuel. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".
Isaac Mattson Game Log | Games Started
| OPP | DEC | IP | BF | PC | H | R | ER | BB | K | ERA | FIP | WHIP | BABIP | HR | Proj $ | Act $ |
|---|
Isaac Mattson Game Log | Last 30 Day Relief Appearances
| OPP | DEC | IPStart | IP | BF | PC | H | R | ER | BB | K | HR | ERA | FIP | WHIP | $ |
|---|
| Mar 29 | @NYM | | 8 | 1.0 | 3 | 13 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | -0.86 | 0.00 | 0.5 |
| Mar 26 | @NYM | | 5 | 0.7 | 7 | 36 | 3 | 2 | 2 | 2 | 1 | 0 | 25.71 | 0.00 | 7.50 | -99.9 |
Isaac Mattson Stats | Season
Isaac Mattson stats and 5x5 fantasy value from 2013-2026.
| Period | Team | G | GS | QS | W | L | SV | HLD | BF | IP | H | ER | HR | BB | K | ERA | FIP | WHIP | BABIP | HR/9 | BB/9 | K/9 | $ |
|---|
| 2013 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2014 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2015 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2016 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2017 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2018 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2019 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2020 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2021 | BAL | 4 | 0 | 0 | 0 | 0 | 0 | 0 | | 4.0 | 5 | 3 | 0 | 5 | 3 | 6.23 | 5.25 | 2.31 | | 0.0 | 10.4 | 6.2 | -18.9 |
| 2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2023 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2024 | PIT | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 5.0 | 1 | 3 | 0 | 5 | 6 | 5.06 | 4.29 | 1.13 | 0.091 | 0.0 | 8.5 | 10.2 | -15.3 |
| 2025 | PIT | 44 | 0 | 0 | 3 | 3 | 0 | 12 | 198 | 48.0 | 35 | 13 | 4 | 19 | 45 | 2.45 | 3.66 | 1.13 | 0.246 | 0.8 | 3.6 | 8.5 | -6.0 |
| 2026 | PIT | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 2.0 | 3 | 2 | 0 | 2 | 3 | 10.80 | 3.14 | 3.00 | 0.600 | 0.0 | 10.6 | 15.9 | -45.8 |
Isaac Mattson Stats | Monthly
Isaac Mattson 2026 fantasy value by month for 5x5 leagues.
| G | GS | QS | W | L | SV | HLD | IP | H | ER | K | BB | ERA | FIP | WHIP | BABIP | H/9 | K/9 | BB/9 | HR/9 | $ | $/G$ |
|---|
| May | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 3.0 | 1 | 1 | 4 | 1 | 3.00 | 5.70 | 0.67 | 0.000 | 3.0 | 12.0 | 3.0 | 3.0 | -7.8 | -4.0 |
| June | 8 | 0 | 0 | 1 | 0 | 0 | 2 | 11.7 | 5 | 2 | 12 | 2 | 1.54 | 2.60 | 0.60 | 0.154 | 3.9 | 9.3 | 1.5 | 0.8 | 5.4 | 4.4 |
| July | 11 | 0 | 0 | 2 | 1 | 0 | 1 | 10.7 | 11 | 3 | 14 | 5 | 2.53 | 3.31 | 1.50 | 0.357 | 9.3 | 11.8 | 4.2 | 0.8 | 0.3 | -3.9 |
| August | 12 | 0 | 0 | 0 | 1 | 0 | 4 | 11.7 | 7 | 2 | 11 | 5 | 1.54 | 2.69 | 1.03 | 0.219 | 5.4 | 8.5 | 3.9 | 0.0 | -5.7 | -6.9 |
| September | 10 | 0 | 0 | 0 | 1 | 0 | 5 | 10.7 | 11 | 5 | 4 | 6 | 4.22 | 5.19 | 1.59 | 0.270 | 9.3 | 3.4 | 5.1 | 0.8 | -17.4 | -14.2 |
Isaac Mattson Fantasy Baseball | Rest of Season Player Rater
Isaac Mattson Fantasy Baseball | Rest of Season Player Rater (non-standard 5x5)
Isaac Mattson Fantasy Baseball | Preseason Player Rater
Isaac Mattson Fantasy Baseball | Preseason Player Rater (non-standard 5x5)
Isaac Mattson 2026 Projections | Preseason
Isaac Mattson Fantasy Outlook For 2026
| Grey Albright Player Summary |
|---|
Player data for Isaac Mattson maintained by Rudy Gamble | Updated: 2026-03-30 04:15:20 PM EST
