Boston Marathon logo
BOSTON MARATHON 2023

Mason O'Hanlon

Bib: 24580•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:46
Rank: #13793
Start → 5K
24:46 | 7:58/mi
10K· 6.21 mi
48:47
Rank: #13184 (+609)
5K → 10K
24:01 | 7:44/mi
15K· 9.32 mi
1:12:22
Rank: #12348 (+836)
10K → 15K
23:35 | 7:35/mi
20K· 12.43 mi
1:36:15
Rank: #11912 (+436)
15K → 20K
23:53 | 7:41/mi
Half· 13.11 mi
1:41:23
Rank: #11837 (+75)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:59:59
Rank: #11474 (+363)
Half → 25K
18:36 | 7:40/mi
30K· 18.64 mi
2:24:59
Rank: #11423 (+51)
25K → 30K
25:00 | 8:03/mi
20M
2:36:02
Rank: #11372 (+51)
30K → 20M
11:03 | 8:08/mi
21M
2:44:33
Rank: #11283 (+89)
20M → 21M
8:31 | 8:31/mi
35K· 21.75 mi
2:50:17
Rank: #11225 (+58)
21M → 35K
5:44 | 7:40/mi
23M
3:00:16
Rank: #11107 (+118)
35K → 23M
9:59 | 7:58/mi
24M
3:08:03
Rank: #11027 (+80)
23M → 24M
7:47 | 7:47/mi
40K· 24.85 mi
3:14:52
Rank: #10959 (+68)
24M → 40K
6:49 | 7:58/mi
25.2M
3:17:43
Rank: #10902 (+57)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:25:31
Rank: #10828 (+74)
25.2M → Finish
7:48 | 7:39/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
Time1:41:23
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:44:08
Pace7:57 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0524:467:5824:46
7:58
-
10K
6.21 mi12:09:0648:477:5124:01
7:44
-0:14
15K
9.32 mi12:32:411:12:227:4623:35
7:35
-0:09
20K
12.43 mi12:56:341:36:157:4523:53
7:41
+0:06
Half
13.11 mi13:01:421:41:237:445:08
7:31
-0:10
25K
15.53 mi13:20:181:59:597:4318:36
7:40
+0:09
30K
18.64 mi13:45:182:24:597:4725:00
8:03
+0:23
20M
20.00 mi13:56:212:36:027:4811:03
8:08
+0:05
21M
21.00 mi14:04:522:44:337:508:31
8:31
+0:23
35K
21.75 mi14:10:362:50:177:505:44
7:40
-0:51
23M
23.00 mi14:20:353:00:167:509:59
7:58
+0:18
24M
24.00 mi14:28:223:08:037:507:47
7:47
-0:11
40K
24.85 mi14:35:113:14:527:506:49
7:58
+0:11
25.2M
25.20 mi14:38:023:17:437:512:51
8:16
+0:18
Finish
26.22 mi14:45:503:25:317:517:48
7:39
-0:37

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

7:31 /mi

Average Pace

7:51 /mi

Slowest Pace

8:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:00

96% of race

Time at Steady Pace

8:31

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi11:45:0524:467:5824:46
7:58
#13793
10K
6.21 mi12:09:0648:477:5124:01
7:44
#13184
15K
9.32 mi12:32:411:12:227:4623:35
7:35
#12348
20K
12.43 mi12:56:341:36:157:4523:53
7:41
#11912
Half
13.11 mi13:01:421:41:237:445:08
7:31
#11837
25K
15.53 mi13:20:181:59:597:4318:36
7:40
#11474
30K
18.64 mi13:45:182:24:597:4725:00
8:03
#11423
20M
20.00 mi13:56:212:36:027:4811:03
8:08
#11372
21M
21.00 mi14:04:522:44:337:508:31
8:31
#11283
35K
21.75 mi14:10:362:50:177:505:44
7:40
#11225
23M
23.00 mi14:20:353:00:167:509:59
7:58
#11107
24M
24.00 mi14:28:223:08:037:507:47
7:47
#11027
40K
24.85 mi14:35:113:14:527:506:49
7:58
#10959
25.2M
25.20 mi14:38:023:17:437:512:51
8:16
#10902
Finish
26.22 mi14:45:503:25:317:517:48
7:39
#10828
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi137939874987410925(Top 41%)8614(Top 57%)8614(Top 163%)
10K6.21 mi3.10 mi13184+6099607+2679607+26712497(Top 47%)9330(Top 61%)9330(Top 177%)
15K9.32 mi3.11 mi12348+8369236+3719236+37110925(Top 41%)8614(Top 57%)8614(Top 163%)
20K12.43 mi3.11 mi11912+4369030+2069030+20610814(Top 41%)8480(Top 56%)8480(Top 160%)
Half13.11 mi0.68 mi11837+759002+289002+2810391(Top 39%)8300(Top 55%)8300(Top 157%)
25K15.53 mi2.42 mi11474+3638832+1708832+17010075(Top 38%)8033(Top 53%)8033(Top 152%)
30K18.64 mi3.11 mi11423+518760+728760+7211255(Top 42%)8473(Top 56%)8473(Top 160%)
20M20.00 mi1.36 mi11372+518717+438717+4311216(Top 42%)8364(Top 55%)8364(Top 158%)
21M21.00 mi1.00 mi11283+898656+618656+6110559(Top 40%)7892(Top 52%)7892(Top 149%)
35K21.75 mi0.75 mi11225+588620+368620+369693(Top 36%)7465(Top 49%)7465(Top 141%)
23M23.00 mi1.25 mi11107+1188543+778543+779566(Top 36%)7270(Top 48%)7270(Top 138%)
24M24.00 mi1.00 mi11027+808471+728471+729645(Top 36%)7224(Top 48%)7224(Top 137%)
40K24.85 mi0.85 mi10959+688411+608411+609856(Top 37%)7272(Top 48%)7272(Top 138%)
25.2M25.20 mi0.35 mi10902+578369+428369+428080(Top 30%)6240(Top 41%)6240(Top 118%)
Finish26.22 mi1.02 mi10828+748301+688301+689645(Top 36%)7096(Top 47%)7096(Top 134%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10925

Males

8614

M18-39

8614

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

12497

Males

9330

M18-39

9330

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10925

Males

8614

M18-39

8614

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10814

Males

8480

M18-39

8480

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10391

Males

8300

M18-39

8300

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10075

Males

8033

M18-39

8033

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11255

Males

8473

M18-39

8473

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11216

Males

8364

M18-39

8364

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

10559

Males

7892

M18-39

7892

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9693

Males

7465

M18-39

7465

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

9566

Males

7270

M18-39

7270

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

9645

Males

7224

M18-39

7224

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9856

Males

7272

M18-39

7272

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8080

Males

6240

M18-39

6240

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9645

Males

7096

M18-39

7096

Passing Analysis

Category:
Athletes Passed
3534
Passed By
569
Net Change
+2965
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13793
5K → 10K713104+609#13793#13184
10K → 15K86125+836#13184#12348
15K → 20K45115+436#12348#11912
20K → Half827+75#11912#11837
Half → 25K3685+363#11837#11474
25K → 30K209158+51#11474#11423
30K → 20M10756+51#11423#11372
20M → 21M13647+89#11372#11283
21M → 35K7618+58#11283#11225
35K → 23M14729+118#11225#11107
23M → 24M11131+80#11107#11027
24M → 40K9931+68#11027#10959
40K → 25.2M669+57#10959#10902
25.2M → Finish10834+74#10902#10828
TOTALS3534569+2965
📊

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