Player Information
| Team | PIT |
Pos | RP |
Age | 30 |
| Throws | R |
$/Game | -4.6 |
RCL R% | 0 |
Razzball 2026 rest of season projections for Isaac Mattson of the Pittsburgh Pirates have him as the
#693 ranked player and #194 relief pitcher (RP) worth $-16.0 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 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 3.7 | 19 | 5 | 2 | 0 | 3 | 4 | 4.91 | 3.30 | 2.16 | 0.417 | 12.2 | 9.7 | 7.3 | 0.0 | 21.1 | 15.8 | -13.2 |
| Season | 37 | 0 | 0 | 0 | 0 | 0 | 8 | 36.7 | 166 | 40 | 20 | 3 | 18 | 34 | 4.91 | 3.85 | 1.58 | 0.336 | 9.8 | 8.3 | 4.4 | 0.7 | 20.5 | 10.8 | -17.8 |
| ROS Proj | 11 | 0 | 0 | 1 | 1 | 0 | 2 | 11.2 | 48 | 10 | 5 | 1 | 5 | 10 | 4.36 | 4.55 | 1.39 | 0.287 | 8.0 | 8.0 | 4.0 | 0.8 | 21.5 | 10.8 | -15.7 |
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 | $ |
|---|
| Aug 17 | DET | | 4 | 2.0 | 10 | 41 | 2 | 1 | 1 | 2 | 1 | 0 | 4.50 | 5.08 | 2.00 | -20.0 |
| Jul 28 | ARI | | 5 | 1.7 | 9 | 39 | 3 | 1 | 1 | 1 | 3 | 0 | 5.29 | 1.31 | 2.40 | -7.3 |
| Jul 25 | CHC | | 6 | 0.3 | 6 | 26 | 4 | 3 | 3 | 1 | 1 | 0 | 90.00 | 0.00 | 15.00 | -99.9 |
| Jul 19 | @CLE | | 9 | 1.0 | 3 | 13 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.10 | 0.00 | -7.0 |
| Jul 18 | @CLE | | 9 | 1.0 | 4 | 20 | 1 | 0 | 0 | 0 | 2 | 0 | 0.00 | -0.90 | 1.00 | 0.2 |
| Jul 12 | MIL | | 6 | 0.7 | 4 | 18 | 1 | 0 | 0 | 1 | 1 | 0 | 0.00 | 0.00 | 3.00 | -10.3 |
| Jul 11 | MIL | HLD | 8 | 1.0 | 4 | 24 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 3.10 | 1.00 | -14.8 |
| Jul 8 | ATL | | 9 | 1.0 | 5 | 12 | 2 | 1 | 1 | 0 | 1 | 0 | 9.00 | 1.12 | 2.00 | -28.1 |
| Jul 5 | @WSH | | 6 | 1.0 | 4 | 12 | 2 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.11 | 2.00 | -7.5 |
| Jul 3 | @WSH | | 7 | 1.3 | 8 | 37 | 3 | 4 | 4 | 1 | 1 | 2 | 27.69 | 23.36 | 3.00 | -86.5 |
| Jun 30 | @PHI | | 7 | 0.7 | 3 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 1.50 | -17.5 |
| Jun 27 | CIN | | 8 | 1.0 | 3 | 13 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | -0.89 | 0.00 | 0.5 |
| Jun 26 | CIN | | 7 | 1.0 | 3 | 12 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.11 | 0.00 | -7.0 |
| Jun 23 | SEA | | 8 | 1.0 | 3 | 13 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.10 | 0.00 | -7.0 |
| Jun 17 | @ATH | | 9 | 1.0 | 4 | 16 | 1 | 1 | 1 | 0 | 2 | 1 | 9.00 | 12.10 | 1.00 | -20.4 |
| Jun 14 | MIA | | 8 | 1.3 | 6 | 27 | 0 | 0 | 0 | 2 | 1 | 0 | 0.00 | 6.10 | 1.50 | -5.0 |
| May 17 | PHI | | 6 | 1.0 | 5 | 15 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 6.09 | 1.00 | -14.8 |
| May 16 | PHI | | 5 | 1.3 | 5 | 25 | 0 | 0 | 0 | 1 | 2 | 0 | 0.00 | 2.34 | 0.75 | 2.7 |
| May 10 | @SF | BSV | 6 | 0.3 | 4 | 18 | 3 | 2 | 2 | 0 | 0 | 0 | 60.00 | 0.00 | 9.00 | -99.9 |
| May 7 | @ARI | HLD | 8 | 0.3 | 1 | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 | 0.00 | -12.9 |
| Apr 30 | STL | | 8 | 0.7 | 7 | 31 | 3 | 5 | 5 | 2 | 0 | 0 | 64.29 | 0.00 | 7.50 | -99.9 |
| Apr 27 | STL | HLD | 7 | 0.3 | 1 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 | 0.00 | -12.9 |
| Apr 25 | @MIL | BSV | 6 | 1.0 | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 3.15 | 0.00 | -14.6 |
| Apr 24 | @MIL | | 9 | 1.0 | 4 | 14 | 0 | 0 | 0 | 1 | 1 | 0 | 0.00 | 4.13 | 1.00 | -7.3 |
| Apr 19 | TB | HLD | 8 | 1.0 | 3 | 8 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.13 | 0.00 | -7.0 |
| Apr 18 | TB | | 10 | 1.0 | 3 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 3.12 | 0.00 | -14.6 |
| Apr 16 | WSH | | 8 | 1.0 | 4 | 18 | 0 | 0 | 0 | 1 | 0 | 0 | 0.00 | 6.16 | 1.00 | -14.8 |
| Apr 14 | WSH | | 8 | 2.0 | 7 | 33 | 2 | 0 | 0 | 0 | 1 | 0 | 0.00 | 2.16 | 1.00 | -3.3 |
| Apr 11 | @CHC | HLD | 8 | 1.0 | 5 | 24 | 2 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.12 | 2.00 | -7.5 |
| Apr 10 | @CHC | HLD | 7 | 1.0 | 4 | 12 | 0 | 0 | 0 | 1 | 0 | 0 | 0.00 | 6.15 | 1.00 | -14.8 |
| Apr 7 | SD | HLD | 7 | 0.7 | 3 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 1.50 | -17.5 |
| Apr 6 | SD | | 7 | 1.0 | 5 | 21 | 2 | 0 | 0 | 0 | 2 | 0 | 0.00 | -0.83 | 2.00 | 0.0 |
| Apr 4 | BAL | | 8 | 1.0 | 4 | 17 | 1 | 0 | 0 | 1 | 1 | 0 | 0.00 | 4.19 | 2.00 | -7.5 |
| Apr 1 | @CIN | HLD | 6 | 1.3 | 5 | 22 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 3.17 | 0.75 | -12.3 |
| Mar 30 | @CIN | | 7 | 1.0 | 4 | 15 | 0 | 0 | 0 | 1 | 1 | 0 | 0.00 | 4.21 | 1.00 | -7.3 |
| 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 | 37 | 0 | 0 | 0 | 0 | 0 | 8 | 166 | 37.0 | 40 | 20 | 3 | 18 | 34 | 4.91 | 3.85 | 1.58 | 0.336 | 0.7 | 4.4 | 8.3 | -17.8 |
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 | $ | $/G$ |
|---|
| April | 13 | 0 | 0 | 0 | 0 | 0 | 6 | 13.3 | 9 | 0 | 8 | 4 | 0.00 | 2.73 | 0.98 | 0.231 | 6.1 | 5.4 | 2.7 | 0.0 | -1.5 | -5.6 |
| May | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 3.0 | 4 | 2 | 3 | 1 | 6.00 | 3.03 | 1.67 | 0.400 | 9.9 | 9.0 | 3.0 | 0.0 | -13.0 | -13.9 |
| June | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 5.3 | 1 | 1 | 7 | 2 | 1.69 | 3.97 | 0.56 | 0.000 | 1.7 | 11.8 | 3.4 | 1.7 | -4.0 | -1.8 |
| July | 9 | 0 | 0 | 0 | 0 | 0 | 1 | 9.0 | 17 | 9 | 11 | 4 | 9.00 | 4.81 | 2.33 | 0.500 | 9.9 | 11.0 | 4.0 | 2.0 | -27.4 | -21.9 |
| August | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 2 | 1 | 1 | 2 | 4.50 | 5.03 | 2.00 | 0.286 | 9.0 | 4.5 | 9.0 | 0.0 | -14.0 | -22.9 |
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: 2026-08-26 03:30:20 PM EST
