LOGIN

Isaac Mattson
Projections & Stats

PIT

Player Information

TeamPIT PosRP Age30
ThrowsR $/Game-2.6 RCL R%0
Razzball 2026 rest of season projections for Isaac Mattson of the Pittsburgh Pirates have him as the #535 ranked player and #178 relief pitcher (RP) worth $-7.0 in standard 12 team 5x5 mixed leagues for fantasy baseball.

Jump to: Season Stats || Monthly Stats || Game Log || Player Rater || 2026 Fantasy Outlook
Grey Albright's 2026 Player Summary

Isaac Mattson Stats

GGSQSWLSVHLDIPTBFHERHRBBKERAFIPWHIPBABIPH/9K/9BB/9HR/9K%BB%$
Last 7 Days
Last 30 Days
Season44003301247.71983513419452.453.661.130.2466.68.53.60.822.79.6-6.0
ROS Proj65003301764.82825833928594.634.371.340.2768.18.23.91.320.910.1-7.0

Isaac Mattson 2026 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)
Preseason (Steamer)65003301764.8282583359284.634.371.348.23.91.320.910.1-7.0535
Prospectonator

Isaac Mattson Projections | Streamonator (Subscribe/login to see pitcher projections)

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 Projections | DFS (Subscribe to see DFS MLB projections)

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 Trade Value | Try our free Fantasy Baseball Trade Analyzer to evaluate trade offers.

Isaac Mattson Game Log | Games Started

OPPDECIPBFPCHRERBBKERAFIPWHIPBABIPHRProj $Act $

Isaac Mattson Game Log | Last 30 Day Relief Appearances

OPPDECIPStartIPBFPCHRERBBKHRERAFIPWHIP$

Isaac Mattson Stats | Season

Isaac Mattson stats and 5x5 fantasy value from 2013-2026.
PeriodTeamGGSQSWLSVHLDBFIPHERHRBBKERAFIPWHIPBABIPHR/9BB/9K/9$
2013 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2014 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2015 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2016 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2017 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2018 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2019 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2021BAL40000004.0530536.235.252.310.010.46.2-18.9
2022 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2023 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2024PIT3000000235.0130565.064.291.130.0910.08.510.2-15.3
2025PIT44003301219848.03513419452.453.661.130.2460.83.68.5-6.0
2026 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

Isaac Mattson Stats | Monthly

Isaac Mattson 2026 fantasy value by month for 5x5 leagues.
GGSQSWLSVHLDIPHERKBBERAFIPWHIPBABIPH/9K/9BB/9HR/9$$/G$
May30000003.011413.005.700.670.0003.012.03.03.0-7.8-4.0
June800100211.7521221.542.600.600.1543.99.31.50.85.44.4
July1100210110.71131452.533.311.500.3579.311.84.20.80.3-3.9
August1200010411.7721151.542.691.030.2195.48.53.90.0-5.7-6.9
September1000010510.7115464.225.191.590.2709.33.45.10.8-17.4-14.2

Isaac Mattson Fantasy Baseball | Rest of Season Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN0.00.0-0.17.5-1.7156856
MLB 10 Y!0.00.0-2.3-2.10.039711
MLB 12 ESPN-7.0-4.20.2-6.9-0.4-0.6-0.3178535
MLB 12 Y!0.00.0-2.6-2.00.040725
MLB 14 ESPN0.00.00.011.7-1.3175921
MLB 14 Y!0.00.0-2.3-1.50.260759
MLB 15 ESPN-5.2-5.50.1-5.9-0.1-0.1-0.2193556
MLB 15 Y!0.00.0-2.2-1.40.365763
MLB 16 ESPN0.00.00.018.5-1.2172916
MLB 16 Y!0.00.0-2.4-1.40.366762
AL 10
NL 100.09.2-0.21475
AL 12
NL 120.012.10.01440

Isaac Mattson Fantasy Baseball | Rest of Season Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 120.08.0-1.30.00.01550
6x6 (QS) Y! 12-2.0-1.60.0-0.10.01550
6x6 (Holds) ESPN 120.0-4.2-5.30.00.31550
6x6 (Holds) Y! 12-1.9-1.1-0.10.00.61550
7x7 ESPN 120.0-6.9-4.80.00.01550
7x7 Y! 12-1.8-1.1-0.1-0.10.61550

Isaac Mattson Fantasy Baseball | Preseason Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-9.6-4.00.1-9.2-0.4-0.8-0.3178519
MLB 10 Y!-2.8-2.10.2-2.6-0.5-0.6-0.3173382
MLB 12 ESPN-7.0-4.20.2-6.9-0.4-0.6-0.3178535
MLB 12 Y!-3.6-2.50.1-2.8-0.6-0.8-0.5174423
MLB 14 ESPN-4.3-4.30.2-4.9-0.2-0.3-0.1174531
MLB 14 Y!-3.9-2.90.1-2.7-0.8-0.9-0.6173447
MLB 15 ESPN-4.0-4.40.2-4.4-0.3-0.3-0.2178550
MLB 15 Y!-4.1-3.10.1-2.6-0.9-1.0-0.7169468
MLB 16 ESPN-3.6-4.40.3-4.3-0.3-0.2-0.1176575
MLB 16 Y!-4.5-3.30.1-2.8-1.0-1.1-0.7171502
AL 10
NL 10-3.3-3.90.0-4.20.0-0.10.064305
AL 12
NL 12-2.3-4.00.0-3.40.00.00.154333

Isaac Mattson Fantasy Baseball | Preseason Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 12-4.7-4.20.3-4.6-0.5-0.6-0.30.0172269
6x6 (Holds) ESPN 12-4.7-4.20.3-4.6-0.5-0.6-0.30.064269
7x7 ESPN 12-15.5-4.00.3-12.8-2.1-2.1-1.10.01.3106258

Isaac Mattson 2026 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)
Preseason (Steamer)65003301764.8282583359284.634.371.348.23.91.320.910.1-7.0535
Prospectonator

Isaac Mattson Fantasy Outlook For 2026

Grey Albright Player Summary

Player data for Isaac Mattson maintained by | Updated: