Boston Marathon logo
BOSTON MARATHON 2023

Daniel Marshall

Bib: 12407•M

IL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 43%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 47%
Division (M60-64)
#0 / 1110
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:19
Rank: #12591
Start → 5K
24:19 | 7:50/mi
10K· 6.21 mi
47:29
Rank: #11270 (+1321)
5K → 10K
23:10 | 7:27/mi
15K· 9.32 mi
1:11:02
Rank: #11112 (+158)
10K → 15K
23:33 | 7:35/mi
20K· 12.43 mi
1:36:00
Rank: #11732 (-620)
15K → 20K
24:58 | 8:02/mi
Half· 13.11 mi
1:41:10
Rank: #11682 (+50)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
2:00:17
Rank: #11659 (+23)
Half → 25K
19:07 | 7:53/mi
30K· 18.64 mi
2:25:34
Rank: #11695 (-36)
25K → 30K
25:17 | 8:08/mi
20M
2:36:36
Rank: #11622 (+73)
30K → 20M
11:02 | 8:07/mi
21M
2:45:22
Rank: #11647 (-25)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:51:02
Rank: #11515 (+132)
21M → 35K
5:40 | 7:34/mi
23M
3:01:08
Rank: #11437 (+78)
35K → 23M
10:06 | 8:04/mi
24M
3:08:57
Rank: #11345 (+92)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:15:51
Rank: #11295 (+50)
24M → 40K
6:54 | 8:04/mi
25.2M
3:18:54
Rank: #11301 (-6)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:27:15
Rank: #11377 (-76)
25.2M → Finish
8:21 | 8:12/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:10
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:46:05
Pace8:06 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4924:197:5024:19
7:50
-
10K
6.21 mi11:14:5947:297:3923:10
7:27
-0:23
15K
9.32 mi11:38:321:11:027:3723:33
7:35
+0:08
20K
12.43 mi12:03:301:36:007:4324:58
8:02
+0:27
Half
13.11 mi12:08:401:41:107:435:10
7:34
-0:28
25K
15.53 mi12:27:472:00:177:4519:07
7:53
+0:19
30K
18.64 mi12:53:042:25:347:4925:17
8:08
+0:15
20M
20.00 mi13:04:062:36:367:5011:02
8:07
-0:01
21M
21.00 mi13:12:522:45:227:528:46
8:46
+0:39
35K
21.75 mi13:18:322:51:027:525:40
7:34
-1:12
23M
23.00 mi13:28:383:01:087:5310:06
8:04
+0:30
24M
24.00 mi13:36:273:08:577:527:49
7:49
-0:15
40K
24.85 mi13:43:213:15:517:536:54
8:04
+0:15
25.2M
25.20 mi13:46:243:18:547:543:03
8:51
+0:47
Finish
26.22 mi13:54:453:27:157:558:21
8:12
-0:39

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:27 /mi

Average Pace

7:55 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:05

90% of race

Time at Steady Pace

17:07

8% of race

Time at Slower Pace

3:03

1% of race

Average Pace: 7:54 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:51:4924:197:5024:19
7:50
#12591
10K
6.21 mi11:14:5947:297:3923:10
7:27
#11270
15K
9.32 mi11:38:321:11:027:3723:33
7:35
#11112
20K
12.43 mi12:03:301:36:007:4324:58
8:02
#11732
Half
13.11 mi12:08:401:41:107:435:10
7:34
#11682
25K
15.53 mi12:27:472:00:177:4519:07
7:53
#11659
30K
18.64 mi12:53:042:25:347:4925:17
8:08
#11695
20M
20.00 mi13:04:062:36:367:5011:02
8:07
#11622
21M
21.00 mi13:12:522:45:227:528:46
8:46
#11647
35K
21.75 mi13:18:322:51:027:525:40
7:34
#11515
23M
23.00 mi13:28:383:01:087:5310:06
8:04
#11437
24M
24.00 mi13:36:273:08:577:527:49
7:49
#11345
40K
24.85 mi13:43:213:15:517:536:54
8:04
#11295
25.2M
25.20 mi13:46:243:18:547:543:03
8:51
#11301
Finish
26.22 mi13:54:453:27:157:558:21
8:12
#11377
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi125919359935910829(Top 41%)8567(Top 56%)8567(Top 772%)
10K6.21 mi3.10 mi11270+13218778+5818778+58110117(Top 38%)8233(Top 54%)8233(Top 742%)
15K9.32 mi3.11 mi11112+1588703+758703+7510829(Top 41%)8567(Top 56%)8567(Top 772%)
20K12.43 mi3.11 mi11732-6208958-2558958-25513718(Top 52%)9753(Top 64%)9753(Top 879%)
Half13.11 mi0.68 mi11682+508933+258933+2510779(Top 40%)8505(Top 56%)8505(Top 766%)
25K15.53 mi2.42 mi11659+238910+238910+2311785(Top 44%)8819(Top 58%)8819(Top 795%)
30K18.64 mi3.11 mi11695-368873+378873+3711902(Top 45%)8759(Top 58%)8759(Top 789%)
20M20.00 mi1.36 mi11622+738825+488825+4811138(Top 42%)8322(Top 55%)8322(Top 750%)
21M21.00 mi1.00 mi11647-258815+108815+1012043(Top 45%)8601(Top 57%)8601(Top 775%)
35K21.75 mi0.75 mi11515+1328742+738742+739091(Top 34%)7134(Top 47%)7134(Top 643%)
23M23.00 mi1.25 mi11437+788683+598683+5910229(Top 38%)7610(Top 50%)7610(Top 686%)
24M24.00 mi1.00 mi11345+928622+618622+619908(Top 37%)7354(Top 48%)7354(Top 663%)
40K24.85 mi0.85 mi11295+508577+458577+4510492(Top 39%)7604(Top 50%)7604(Top 685%)
25.2M25.20 mi0.35 mi11301-68569+88569+811530(Top 43%)8044(Top 53%)8044(Top 725%)
Finish26.22 mi1.02 mi11377-768580-118580-1113366(Top 50%)8951(Top 59%)8951(Top 806%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10829

Males

8567

M60-64

8567

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10117

Males

8233

M60-64

8233

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10829

Males

8567

M60-64

8567

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13718

Males

9753

M60-64

9753

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10779

Males

8505

M60-64

8505

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11785

Males

8819

M60-64

8819

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

11902

Males

8759

M60-64

8759

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11138

Males

8322

M60-64

8322

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12043

Males

8601

M60-64

8601

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9091

Males

7134

M60-64

7134

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10229

Males

7610

M60-64

7610

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9908

Males

7354

M60-64

7354

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10492

Males

7604

M60-64

7604

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11530

Males

8044

M60-64

8044

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13366

Males

8951

M60-64

8951

Passing Analysis

Category:
Athletes Passed
2811
Passed By
1597
Net Change
+1214
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12591
5K → 10K135837+1321#12591#11270
10K → 15K270112+158#11270#11112
15K → 20K35655-620#11112#11732
20K → Half588+50#11732#11682
Half → 25K160137+23#11682#11659
25K → 30K166202-36#11659#11695
30K → 20M12855+73#11695#11622
20M → 21M83108-25#11622#11647
21M → 35K14210+132#11647#11515
35K → 23M13052+78#11515#11437
23M → 24M11119+92#11437#11345
24M → 40K8939+50#11345#11295
40K → 25.2M3137-6#11295#11301
25.2M → Finish50126-76#11301#11377
TOTALS28111597+1214
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing