Boston Marathon logo
BOSTON MARATHON 2023

Nicole Shannon

Bib: 14641•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 31%
Gender (Female)
#0 / 11423
Top 12%
Division (F18-39)
#0 / 4884
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:06
Rank: #9115
Start → 5K
23:06 | 7:26/mi
10K· 6.21 mi
45:55
Rank: #9109 (+6)
5K → 10K
22:49 | 7:21/mi
15K· 9.32 mi
1:08:49
Rank: #9068 (+41)
10K → 15K
22:54 | 7:22/mi
20K· 12.43 mi
1:31:49
Rank: #8908 (+160)
15K → 20K
23:00 | 7:24/mi
Half· 13.11 mi
1:36:51
Rank: #8916 (-8)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:54:40
Rank: #8689 (+227)
Half → 25K
17:49 | 7:21/mi
30K· 18.64 mi
2:17:35
Rank: #8223 (+466)
25K → 30K
22:55 | 7:23/mi
20M
2:27:40
Rank: #8043 (+180)
30K → 20M
10:05 | 7:25/mi
21M
2:35:38
Rank: #7958 (+85)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:41:03
Rank: #7895 (+63)
21M → 35K
5:25 | 7:14/mi
23M
2:50:59
Rank: #7951 (-56)
35K → 23M
9:56 | 7:56/mi
24M
2:58:46
Rank: #8011 (-60)
23M → 24M
7:47 | 7:47/mi
40K· 24.85 mi
3:05:38
Rank: #8067 (-56)
24M → 40K
6:52 | 8:02/mi
25.2M
3:08:47
Rank: #8156 (-89)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:16:35
Rank: #8181 (-25)
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
Time1:36:51
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:39:44
Pace7:36 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1723:067:2623:06
7:26
-
10K
6.21 mi11:15:0645:557:2322:49
7:21
-0:05
15K
9.32 mi11:38:001:08:497:2322:54
7:22
+0:01
20K
12.43 mi12:01:001:31:497:2323:00
7:24
+0:02
Half
13.11 mi12:06:021:36:517:235:02
7:23
-0:01
25K
15.53 mi12:23:511:54:407:2317:49
7:21
-0:02
30K
18.64 mi12:46:462:17:357:2322:55
7:23
+0:02
20M
20.00 mi12:56:512:27:407:2310:05
7:25
+0:02
21M
21.00 mi13:04:492:35:387:257:58
7:58
+0:33
35K
21.75 mi13:10:142:41:037:245:25
7:14
-0:44
23M
23.00 mi13:20:102:50:597:269:56
7:56
+0:42
24M
24.00 mi13:27:572:58:467:277:47
7:47
-0:09
40K
24.85 mi13:34:493:05:387:286:52
8:02
+0:15
25.2M
25.20 mi13:37:583:08:477:293:09
9:08
+1:06
Finish
26.22 mi13:45:463:16:357:307:48
7:39
-1:29

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

7:14 /mi

Average Pace

7:30 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:40:53

82% of race

Time at Slower Pace

35:42

18% of race

Average Pace: 7:30 /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 mi10:52:1723:067:2623:06
7:26
#9115
10K
6.21 mi11:15:0645:557:2322:49
7:21
#9109
15K
9.32 mi11:38:001:08:497:2322:54
7:22
#9068
20K
12.43 mi12:01:001:31:497:2323:00
7:24
#8908
Half
13.11 mi12:06:021:36:517:235:02
7:23
#8916
25K
15.53 mi12:23:511:54:407:2317:49
7:21
#8689
30K
18.64 mi12:46:462:17:357:2322:55
7:23
#8223
20M
20.00 mi12:56:512:27:407:2310:05
7:25
#8043
21M
21.00 mi13:04:492:35:387:257:58
7:58
#7958
35K
21.75 mi13:10:142:41:037:245:25
7:14
#7895
23M
23.00 mi13:20:102:50:597:269:56
7:56
#7951
24M
24.00 mi13:27:572:58:467:277:47
7:47
#8011
40K
24.85 mi13:34:493:05:387:286:52
8:02
#8067
25.2M
25.20 mi13:37:583:08:477:293:09
9:08
#8156
Finish
26.22 mi13:45:463:16:357:307:48
7:39
#8181
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9115143714379113(Top 34%)1489(Top 13%)1489(Top 30%)
10K6.21 mi3.10 mi9109+61458-211458-219191(Top 35%)1490(Top 13%)1490(Top 31%)
15K9.32 mi3.11 mi9068+411454+41454+49113(Top 34%)1489(Top 13%)1489(Top 30%)
20K12.43 mi3.11 mi8908+1601400+541400+548551(Top 32%)1315(Top 12%)1315(Top 27%)
Half13.11 mi0.68 mi8916-81412-121412-129278(Top 35%)1570(Top 14%)1570(Top 32%)
25K15.53 mi2.42 mi8689+2271329+831329+837623(Top 29%)1060(Top 9%)1060(Top 22%)
30K18.64 mi3.11 mi8223+4661200+1291200+1296482(Top 24%)760(Top 7%)760(Top 16%)
20M20.00 mi1.36 mi8043+1801148+521148+526326(Top 24%)800(Top 7%)800(Top 16%)
21M21.00 mi1.00 mi7958+851132+161132+167172(Top 27%)1197(Top 10%)1197(Top 25%)
35K21.75 mi0.75 mi7895+631122+101122+106826(Top 26%)1044(Top 9%)1044(Top 21%)
23M23.00 mi1.25 mi7951-561170-481170-489307(Top 35%)2167(Top 19%)2167(Top 44%)
24M24.00 mi1.00 mi8011-601209-391209-399665(Top 36%)2414(Top 21%)2414(Top 49%)
40K24.85 mi0.85 mi8067-561250-411250-4110260(Top 39%)2771(Top 24%)2771(Top 57%)
25.2M25.20 mi0.35 mi8156-891293-431293-4313274(Top 50%)4345(Top 38%)4345(Top 89%)
Finish26.22 mi1.02 mi8181-251325-321325-329665(Top 36%)2544(Top 22%)2544(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9113

Females

1489

F18-39

1489

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9191

Females

1490

F18-39

1490

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9113

Females

1489

F18-39

1489

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8551

Females

1315

F18-39

1315

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9278

Females

1570

F18-39

1570

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7623

Females

1060

F18-39

1060

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6482

Females

760

F18-39

760

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6326

Females

800

F18-39

800

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7172

Females

1197

F18-39

1197

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

6826

Females

1044

F18-39

1044

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9307

Females

2167

F18-39

2167

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

9665

Females

2414

F18-39

2414

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10260

Females

2771

F18-39

2771

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13274

Females

4345

F18-39

4345

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9665

Females

2544

F18-39

2544

Passing Analysis

Category:
Athletes Passed
2003
Passed By
1069
Net Change
+934
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9115
5K → 10K281275+6#9115#9109
10K → 15K165124+41#9109#9068
15K → 20K21151+160#9068#8908
20K → Half2634-8#8908#8916
Half → 25K24316+227#8916#8689
25K → 30K4748+466#8689#8223
30K → 20M19212+180#8223#8043
20M → 21M11833+85#8043#7958
21M → 35K8219+63#7958#7895
35K → 23M66122-56#7895#7951
23M → 24M47107-60#7951#8011
24M → 40K3894-56#8011#8067
40K → 25.2M11100-89#8067#8156
25.2M → Finish4974-25#8156#8181
TOTALS20031069+934
📊

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