Arizona Diamondbacks vs Washington Nationals H2H Record

National League
Arizona Diamondbacks
Washington Nationals
Nationals lead Diamondbacks86to69since 2002

Current-feed record from 2002 through 2026.

2026 season series: Nationals lead 4-2

Data updated 5 min read

At a glance

Current-feed analysis, 2002 to 2026

Arizona Diamondbacks vs Washington Nationals insights

Current-feed record
+17wins for Nationals
55% Nationals · 45% Diamondbacks

Diamondbacks have closed the gap since the 2023 schedule change: 14-10.

Recent form
11-9last 20
Nationals on a 2-game streak

Nationals won 10-7 on Jul 26, 2026

Where it matters
0Postseason games

No postseason meetings since 2002.

Schedule context
  • Nationals built the series lead before the 2023 schedule change, taking 76 of 131 decided meetings (58%).
  • Since the schedule balanced out they are 10-14, or 42% to Nationals.

Diamondbacks vs Nationals same-league record by season

Arizona Diamondbacks and Washington Nationals met in 24 seasons inside the current feed. Their shared league makes the season table the most useful view.

Active seasons
24
With at least one meeting since 2002
Busiest season
2011
8 meetings
Per active season
6.5
Average recorded meetings
Win Percentage
69W
86W
ARI
WSH
45%55%
Arizona DiamondbacksWashington Nationals

Recent Games

Last 10 Games
Jul 26
WSH 10-7 ARI
WSH
Jul 25
WSH 5-3 ARI
WSH
Jul 24
WSH 2-3 ARI
ARI
Jun 7
ARI 5-1 WSH
ARI
Jun 6
ARI 1-6 WSH
WSH
Jun 5
ARI 1-14 WSH
WSH
Jun 1
ARI 3-1 WSH
ARI
May 31
ARI 7-11 WSH
WSH
May 30
ARI 7-9 WSH
WSH
Apr 6
WSH 5-4 ARI
WSH
Last Meeting
Jul 26, 2026Final
WSH
10
HOME
ARI
7
AWAY
Nationalswon by3runs
Nationals' 2nd straight in this series·Game 155 since 2002
Streaks & Momentum
Current Streak
Washington Nationals: 2 consecutive wins
2
Avg. Margin of Victory
Games decided by 3.4 runs on average
3.4runs
Momentum (Last 10 vs Archive since 2002)
ARITrending Down
Last 1030%
Archive since 200244.5%
WSHTrending Up
Last 1070%
Archive since 200255.5%
Last 10 Results
ARI / WSH

Record since 2002

Season Split & Biggest Wins
Regular season vs Postseason record, plus each team's largest margin of victory
Regular Season155 games
69
86
No postseason meetings appear since 2002.
Arizona Diamondbacks Biggest Win
170+17 runs
Jul 30, 2024
Washington Nationals Biggest Win
172+15 runs
May 14, 2021
Decade Breakdown
Choose a decade to scope the current-feed page
Season by Season
Season ARI WSH Games
2026246
2025246
2024516
2023516
2022437
2021347
2019437
2018257
2017246
2016257
2015347
2014167
2013246
2012246
2011538
2010347
2009156
2008426
2007617
2006156
2005246
2004066
2003426
2002426

All 24 seasons are shown in the table above.

Home / Away Split
35-40ARI HOME46-34WSH HOME
AWAY
34-46
ARI
AWAY
40-35
WSH

Betting Context

Betting context since 2002

How this pairing has settled: run margins, totals and break-even prices derived from its historical record. These are final-score frequencies, not results against a closing line. We do not hold historical sportsbook prices for these games.

One-run games
31.6%

Share of the 155 decided meetings settled by exactly one run.

Won by 2 or more
68.4%

A 2+ run margin crosses 1.5, but this is not a historical line result. Average gap: 3.4.

Average total
8.7runs

Final-score average without accounting for park, bullpen or weather.

Home side wins
52.3%

Share of decided meetings won by the listed home team.

Totals ladder

Where the combined score landed against the half-run lines a book normally posts. Half runs cannot push, so every meeting falls on one side.

LineOverUnderOver rate
7.58471
54.2%
8.5Closest to even7283
46.5%
9.55699
36.1%

Fair price from the base rate

The decimal price that corresponds exactly to each club's win share in this archive. It describes the record and does not estimate the next game.

Washington Nationals
86 W · 55.5%1.80
Arizona Diamondbacks
69 W · 44.5%2.25

A base rate is not a forecast. Starting pitchers, lineups, injuries and venue all matter more to a single game than a multi-season head-to-head record.

Last 20 meetings vs full history

One-run games
25%vs 31.6% full archive
-6.6% in the last 20
Won by 2 or more
75%vs 68.4% full archive
+6.6% in the last 20
Average total
9.9 runsvs 8.7 runs full archive
+1.2 runs in the last 20

Seasons 2023 to 2026. The comparison shows whether the last 20 final scores differ from the longer archive, without assigning a cause or predicting what comes next.

View the break-even percentages in another odds format with the odds converter, or compare current prices for Nationals and Diamondbacks in the oddsmatcher.

Methodology & Data Sources

Current MLB game logs come from the balldontlie API and cover the 2002 season onward. Scores and schedule anomalies are checked against the official MLB Stats API. Spring training is excluded, while results from earlier franchise identities are merged into the current club.

The betting context summarizes completed final scores only. It contains no sportsbook closing lines and summarizes only completed games. Report a possible error through our contact page with the matchup and game date.

Read the full H2H data methodology →

Last updated Sources: balldontlie, MLB Stats API

Arizona Diamondbacks and Washington Nationals have met 155 times in this archive, which covers the 2002 season onward.